diff --git a/ai_002_003/background_mesh/1.obj b/ai_002_003/background_mesh/1.obj
new file mode 100644
index 0000000000000000000000000000000000000000..4b1870d7683baff1973777a44afcbecad1ca3f94
--- /dev/null
+++ b/ai_002_003/background_mesh/1.obj
@@ -0,0 +1,95 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 3.77700710 1.95134461 -3.94208503
+v 3.77700710 1.95134914 -0.42791486
+v 0.10694660 1.95118225 -0.42791486
+v 0.09279627 1.95117879 -2.70566988
+v -4.36924314 1.95097613 -2.70929146
+v -4.42744637 1.95097351 -2.70559287
+v -4.43750381 1.95097303 -2.66678143
+v -4.43750429 1.95097148 -3.94208503
+v -1.97735703 1.95108330 -3.92791510
+v -1.97735667 1.95108426 -3.20524287
+v -1.73513889 1.95109522 -3.17690277
+v -1.11165714 1.95112371 -3.02103233
+v -1.01146305 1.95112836 -3.02103233
+v -1.01146328 1.95112717 -3.88540506
+v -1.09748697 1.95112336 -3.88540506
+v -1.15416718 1.95112062 -3.91374493
+v -1.15416718 1.95112062 -3.94208503
+v -1.01146340 1.95112717 -3.94208503
+v -1.01146328 1.95112717 -3.89957500
+v -0.96126401 1.95112944 -3.89957500
+v -0.96126372 1.95113063 -2.99269223
+v 3.36607599 1.95132709 -2.99269223
+v 3.33773565 1.95132589 -3.03520250
+v 3.29522562 1.95132327 -3.48864365
+v 2.23247242 1.95127511 -3.51698399
+v 2.23247242 1.95127499 -3.55949402
+v 2.17579269 1.95127237 -3.57366395
+v 2.14745235 1.95127094 -3.63034415
+v 1.53814065 1.95124316 -3.74370432
+v 0.97133899 1.95121729 -3.89957500
+v 0.94299889 1.95121586 -3.94208503
+vt 0.00000000 1.00000000
+vt 1.00000000 1.00000000
+vt 1.00000000 0.55322230
+vt 0.35183701 0.55149972
+vt 0.35080644 0.00830982
+vt 0.35185894 0.00122441
+vt 0.36290321 0.00000006
+vt 0.00000000 0.00000000
+vt 0.00403223 0.29948795
+vt 0.20967743 0.29948798
+vt 0.21774195 0.32897460
+vt 0.26209679 0.40487465
+vt 0.26209679 0.41707182
+vt 0.01612898 0.41707179
+vt 0.01612898 0.40659967
+vt 0.00806452 0.39969966
+vt 0.00000000 0.39969966
+vt 0.00000000 0.41707179
+vt 0.01209675 0.41707179
+vt 0.01209675 0.42318285
+vt 0.27016130 0.42318287
+vt 0.27016130 0.94997501
+vt 0.25806448 0.94652498
+vt 0.12903228 0.94134998
+vt 0.12096769 0.81197482
+vt 0.10887094 0.81197482
+vt 0.10483871 0.80507487
+vt 0.08870967 0.80162483
+vt 0.05645165 0.72744989
+vt 0.01209675 0.65844977
+vt 0.00000000 0.65499979
+f 22/22 3/3 4/4
+f 6/6 7/7 8/8
+f 8/8 9/9 10/10
+f 10/10 11/11 12/12
+f 17/17 15/15 16/16
+f 15/15 17/17 18/18
+f 13/13 20/20 21/21
+f 22/22 23/23 24/24
+f 24/24 25/25 26/26
+f 26/26 27/27 28/28
+f 31/31 29/29 30/30
+f 29/29 31/31 1/1
+f 5/5 6/6 8/8
+f 19/19 15/15 18/18
+f 24/24 26/26 28/28
+f 29/29 1/1 28/28
+f 5/5 8/8 10/10
+f 15/15 19/19 14/14
+f 24/24 28/28 1/1
+f 12/12 5/5 10/10
+f 20/20 14/14 19/19
+f 22/22 24/24 1/1
+f 21/21 5/5 12/12
+f 14/14 20/20 13/13
+f 22/22 1/1 2/2
+f 12/12 13/13 21/21
+f 3/3 22/22 2/2
+f 5/5 21/21 4/4
+f 21/21 22/22 4/4
+
diff --git a/ai_002_003/background_mesh/10.obj b/ai_002_003/background_mesh/10.obj
new file mode 100644
index 0000000000000000000000000000000000000000..eb9f26e2a55d7cfbbe8b720c2cac47b1ede6c225
--- /dev/null
+++ b/ai_002_003/background_mesh/10.obj
@@ -0,0 +1,283 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -4.41208029 3.36206818 -5.41151047
+v 1.59350514 3.36206770 -5.41161299
+v 1.59350491 -4.98364401 -5.41150188
+v 0.12355423 -4.98359299 -5.41147661
+v 0.10715225 -2.36226034 -5.41151142
+v 0.10716043 -2.53186846 -5.41150904
+v 0.02461553 -2.53187037 -5.41150761
+v 0.03874946 -2.43293142 -5.41150856
+v -0.03192115 -2.39052916 -5.41150856
+v -0.80929923 -2.39052916 -5.41149521
+v -0.82343316 -2.34812665 -5.41149521
+v -0.83756733 -2.39052916 -5.41149473
+v -0.89242339 -2.39052629 -5.41149378
+v -0.89244944 -2.77215004 -5.41148853
+v -0.21566510 -2.78628492 -5.41149950
+v -0.01778722 -2.75801682 -5.41150331
+v -0.01778722 -2.84282160 -5.41150236
+v -0.07432365 -3.04069948 -5.41149855
+v -0.38527465 -3.06896782 -5.41149330
+v -0.89246875 -3.05483103 -5.41148472
+v -0.89249283 -3.40818644 -5.41147995
+v -0.82343316 -3.40818739 -5.41148090
+v -0.82343358 -3.48423457 -5.41148090
+v -0.79516524 -3.48423481 -5.41148138
+v -0.79516482 -3.42232132 -5.41148138
+v -0.71036005 -3.42232132 -5.41148281
+v -0.71036047 -3.48423553 -5.41148281
+v -0.66795748 -3.48423600 -5.41148329
+v -0.66795754 -3.42232132 -5.41148376
+v -0.59728694 -3.42232132 -5.41148472
+v -0.59728736 -3.48423648 -5.41148472
+v -0.03192091 -3.48424149 -5.41149426
+v -0.01778722 -3.40818739 -5.41149473
+v 0.03874946 -3.40818739 -5.41149569
+v 0.03874946 -3.53539467 -5.41149378
+v 0.02461553 -3.60606527 -5.41149330
+v -0.04605532 -3.60606527 -5.41149187
+v 0.01048112 -3.62019968 -5.41149235
+v -0.00365281 -3.94528484 -5.41148806
+v -0.03192115 -3.94528484 -5.41148758
+v -0.06018949 -3.84634590 -5.41148853
+v -0.08845782 -3.84634590 -5.41148806
+v -0.07432365 -3.74740696 -5.41148949
+v -0.72449422 -3.76154089 -5.41147804
+v -0.73862839 -3.73327255 -5.41147804
+v -0.89251697 -3.76153803 -5.41147566
+v -0.89254689 -4.19969749 -5.41146946
+v -0.82343316 -4.19969940 -5.41147041
+v -0.82343316 -4.31277275 -5.41146898
+v -0.78103089 -4.27037001 -5.41147041
+v -0.78103089 -4.17143106 -5.41147184
+v -0.66795754 -4.19969940 -5.41147327
+v -0.66795754 -4.29863834 -5.41147184
+v -0.55488467 -4.28450441 -5.41147423
+v -0.55488467 -4.31277275 -5.41147375
+v -0.47007966 -4.31277275 -5.41147518
+v -0.28633571 -4.28450441 -5.41147852
+v -0.28633571 -4.31277275 -5.41147804
+v -0.20153093 -4.31277275 -5.41147995
+v -0.03192115 -4.28450441 -5.41148329
+v -0.03192115 -4.39757729 -5.41148138
+v -0.10259199 -4.39757729 -5.41147995
+v -0.10259199 -4.42584562 -5.41147995
+v -0.22979927 -4.39757729 -5.41147804
+v -0.59728694 -4.39757729 -5.41147137
+v -0.59728694 -4.42584562 -5.41147137
+v -0.63968945 -4.42584562 -5.41147089
+v -0.71036005 -4.39757729 -5.41146946
+v -0.89256036 -4.39757538 -5.41146708
+v -0.89259899 -4.96294165 -5.41145945
+v -0.83756757 -4.98355961 -5.41146040
+v -4.41117907 -4.97707701 -5.41139936
+v -0.82343286 -3.48423457 -5.41148090
+v -0.89250153 -3.53539276 -5.41147852
+v -0.78103089 -3.53539467 -5.41147995
+v -0.78103060 -3.48423505 -5.41148138
+v -0.03192115 -3.97355318 -5.41148710
+v -0.00365281 -3.95941877 -5.41148806
+v -0.00365281 -4.00182152 -5.41148710
+v -0.06018949 -4.08662653 -5.41148520
+v -0.06018949 -4.03008986 -5.41148615
+v -0.00365281 -4.01595545 -5.41148710
+v -0.00365281 -4.08662653 -5.41148615
+v 0.03874946 -4.08662653 -5.41148663
+v 0.03874946 -4.12902880 -5.41148615
+v -0.04605532 -4.12902880 -5.41148472
+v -0.01778722 -4.36930895 -5.41148186
+v -0.00365281 -4.19969940 -5.41148472
+v 0.03874946 -4.19969940 -5.41148520
+v 0.02461553 -4.41171169 -5.41148233
+v -0.01778722 -4.41171169 -5.41148138
+v -0.08845782 -4.80746746 -5.41147518
+v 0.01048112 -4.77919912 -5.41147709
+v 0.01047945 -4.98358917 -5.41147470
+v -0.08845949 -4.98358583 -5.41147327
+v -0.08845782 -4.84987020 -5.41147470
+v -0.06018949 -4.84987020 -5.41147518
+vt 0.00000000 1.00000000
+vt 1.00000000 0.99999988
+vt 0.99999994 0.00000000
+vt 0.75523597 0.00000611
+vt 0.75250489 0.31409943
+vt 0.75250626 0.29377666
+vt 0.73876160 0.29377642
+vt 0.74111503 0.30563149
+vt 0.72934759 0.31071222
+vt 0.59990501 0.31071222
+vt 0.59755158 0.31579298
+vt 0.59519809 0.31071222
+vt 0.58606392 0.31071255
+vt 0.58605957 0.26498562
+vt 0.69875205 0.26329195
+vt 0.73170102 0.26667911
+vt 0.73170102 0.25651762
+vt 0.72228706 0.23280750
+vt 0.67051005 0.22942033
+vt 0.58605635 0.23111424
+vt 0.58605236 0.18877448
+vt 0.59755158 0.18877436
+vt 0.59755152 0.17966224
+vt 0.60225850 0.17966221
+vt 0.60225856 0.18708082
+vt 0.61637956 0.18708082
+vt 0.61637950 0.17966212
+vt 0.62344009 0.17966206
+vt 0.62344009 0.18708082
+vt 0.63520753 0.18708082
+vt 0.63520747 0.17966202
+vt 0.72934765 0.17966141
+vt 0.73170102 0.18877436
+vt 0.74111503 0.18877436
+vt 0.74111503 0.17353213
+vt 0.73876160 0.16506425
+vt 0.72699410 0.16506425
+vt 0.73640805 0.16337062
+vt 0.73405457 0.12441827
+vt 0.72934759 0.12441827
+vt 0.72464055 0.13627334
+vt 0.71993357 0.13627334
+vt 0.72228706 0.14812841
+vt 0.61402607 0.14643484
+vt 0.61167258 0.14982201
+vt 0.58604831 0.14643519
+vt 0.58604336 0.09393404
+vt 0.59755158 0.09393381
+vt 0.59755158 0.08038513
+vt 0.60461205 0.08546592
+vt 0.60461205 0.09732098
+vt 0.62344009 0.09393381
+vt 0.62344009 0.08207875
+vt 0.64226800 0.08377231
+vt 0.64226800 0.08038513
+vt 0.65638906 0.08038513
+vt 0.68698454 0.08377231
+vt 0.68698454 0.08038513
+vt 0.70110559 0.08038513
+vt 0.72934759 0.08377231
+vt 0.72934759 0.07022369
+vt 0.71758008 0.07022369
+vt 0.71758008 0.06683652
+vt 0.69639856 0.07022369
+vt 0.63520753 0.07022369
+vt 0.63520753 0.06683652
+vt 0.62814707 0.06683652
+vt 0.61637956 0.07022369
+vt 0.58604109 0.07022392
+vt 0.58603466 0.00248060
+vt 0.59519804 0.00001011
+vt 0.00015006 0.00078687
+vt 0.59755164 0.17966224
+vt 0.58605087 0.17353237
+vt 0.60461205 0.17353213
+vt 0.60461211 0.17966218
+vt 0.72934759 0.12103111
+vt 0.73405457 0.12272472
+vt 0.73405457 0.11764394
+vt 0.72464055 0.10748243
+vt 0.72464055 0.11425677
+vt 0.73405457 0.11595038
+vt 0.73405457 0.10748243
+vt 0.74111503 0.10748243
+vt 0.74111503 0.10240170
+vt 0.72699410 0.10240170
+vt 0.73170102 0.07361086
+vt 0.73405457 0.09393381
+vt 0.74111503 0.09393381
+vt 0.73876160 0.06853008
+vt 0.73170102 0.06853008
+vt 0.71993357 0.02110983
+vt 0.73640805 0.02449699
+vt 0.73640782 0.00000657
+vt 0.71993333 0.00000697
+vt 0.71993357 0.01602904
+vt 0.72464055 0.01602904
+f 5/5 3/3 4/4
+f 8/8 6/6 7/7
+f 9/9 10/10 11/11
+f 11/11 12/12 13/13
+f 15/15 16/16 17/17
+f 15/15 18/18 19/19
+f 21/21 22/22 23/23
+f 27/27 25/25 26/26
+f 28/28 29/29 30/30
+f 32/32 33/33 34/34
+f 37/37 35/35 36/36
+f 41/41 38/38 39/39
+f 39/39 40/40 41/41
+f 41/41 42/42 43/43
+f 28/28 45/45 27/27
+f 47/47 48/48 49/49
+f 50/50 51/51 52/52
+f 53/53 54/54 55/55
+f 56/56 57/57 58/58
+f 62/62 60/60 61/61
+f 62/62 63/63 64/64
+f 65/65 66/66 67/67
+f 70/70 71/71 72/72
+f 11/11 1/1 2/2
+f 3/3 5/5 2/2
+f 6/6 8/8 5/5
+f 18/18 15/15 17/17
+f 14/14 19/19 20/20
+f 25/25 27/27 24/24
+f 28/28 30/30 31/31
+f 35/35 32/32 34/34
+f 43/43 38/38 41/41
+f 53/53 50/50 52/52
+f 60/60 62/62 59/59
+f 53/53 67/67 68/68
+f 69/69 70/70 72/72
+f 9/9 5/5 8/8
+f 19/19 14/14 15/15
+f 44/44 31/31 43/43
+f 37/37 31/31 32/32
+f 35/35 37/37 32/32
+f 38/38 43/43 37/37
+f 68/68 50/50 53/53
+f 64/64 59/59 62/62
+f 49/49 68/68 69/69
+f 11/11 5/5 9/9
+f 72/72 14/14 20/20
+f 45/45 31/31 44/44
+f 43/43 31/31 37/37
+f 31/31 45/45 28/28
+f 65/65 53/53 55/55
+f 59/59 64/64 58/58
+f 67/67 53/53 65/65
+f 5/5 11/11 2/2
+f 27/27 45/45 24/24
+f 58/58 64/64 56/56
+f 50/50 68/68 49/49
+f 1/1 11/11 13/13
+f 24/24 45/45 23/23
+f 65/65 56/56 64/64
+f 1/1 13/13 72/72
+f 46/46 23/23 45/45
+f 56/56 65/65 55/55
+f 14/14 72/72 13/13
+f 23/23 46/46 21/21
+f 47/47 49/49 69/69
+f 72/72 20/20 21/21
+f 47/47 69/69 72/72
+f 72/72 21/21 46/46
+f 46/46 47/47 72/72
+f 73/73 76/76 75/75
+f 75/75 74/74 73/73
+f 77/77 78/78 79/79
+f 83/83 81/81 82/82
+f 83/83 84/84 85/85
+f 83/83 86/86 80/80
+f 81/81 83/83 80/80
+f 86/86 83/83 85/85
+f 87/87 88/88 89/89
+f 87/87 90/90 91/91
+f 90/90 87/87 89/89
+f 97/97 94/94 95/95
+f 95/95 96/96 97/97
+f 97/97 92/92 93/93
+f 94/94 97/97 93/93
+
diff --git a/ai_002_003/background_mesh/11.obj b/ai_002_003/background_mesh/11.obj
new file mode 100644
index 0000000000000000000000000000000000000000..150adb61175584b9b1799437c6ba73ff58d390e1
--- /dev/null
+++ b/ai_002_003/background_mesh/11.obj
@@ -0,0 +1,63 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -1.97735667 1.95108414 -3.21792436
+v -1.97735703 1.95108330 -3.93962264
+v -1.97706008 -0.31184396 -3.93962264
+v -1.97705972 -0.31184304 -3.21792436
+v -1.97721899 0.89685136 -4.73207569
+v -1.97725832 1.19670558 -4.73207569
+v -1.97725832 1.19670486 -4.61886740
+v -1.97720623 0.80041099 -4.61886740
+v -1.97719991 0.75216860 -4.67409182
+v -1.97718692 0.65311199 -4.67408895
+v -1.97718680 0.65311313 -4.61886787
+v -1.97718120 0.61066031 -4.61886787
+v -1.97718143 0.61065918 -4.67408752
+v -1.97716844 0.51160258 -4.67408514
+v -1.97716820 0.51160371 -4.61886787
+v -1.97715890 0.44084898 -4.61886787
+v -1.97715914 0.44084784 -4.67408323
+v -1.97714984 0.37009317 -4.67408085
+v -1.97714257 0.31577018 -4.63301897
+v -1.97714055 0.29933918 -4.67407894
+v -1.97714257 0.31577006 -4.73207569
+vt 0.00000000 1.00000000
+vt 0.47663552 0.99999970
+vt 0.47663552 0.00000000
+vt 0.00000000 0.00000040
+vt 1.00000000 0.53412890
+vt 1.00000000 0.66663605
+vt 0.92523319 0.66663575
+vt 0.92523319 0.49151137
+vt 0.96170539 0.47019282
+vt 0.96170348 0.42641920
+vt 0.92523348 0.42641968
+vt 0.92523348 0.40765956
+vt 0.96170253 0.40765905
+vt 0.96170098 0.36388543
+vt 0.92523348 0.36388591
+vt 0.92523348 0.33261904
+vt 0.96169972 0.33261850
+vt 0.96169811 0.30135167
+vt 0.93457937 0.27734604
+vt 0.96169686 0.27008510
+vt 1.00000000 0.27734599
+f 4/4 2/2 3/3
+f 2/2 4/4 1/1
+f 18/18 21/21 20/20
+f 20/20 19/19 18/18
+f 14/14 16/16 15/15
+f 10/10 12/12 11/11
+f 5/5 8/8 7/7
+f 7/7 6/6 5/5
+f 17/17 21/21 18/18
+f 16/16 14/14 17/17
+f 12/12 10/10 13/13
+f 8/8 5/5 9/9
+f 14/14 21/21 17/17
+f 5/5 13/13 10/10
+f 10/10 9/9 5/5
+f 13/13 21/21 14/14
+f 21/21 13/13 5/5
+
diff --git a/ai_002_003/background_mesh/12.obj b/ai_002_003/background_mesh/12.obj
new file mode 100644
index 0000000000000000000000000000000000000000..aa0b49ddeed4470c306677a6316c28fb95d1ecc7
--- /dev/null
+++ b/ai_002_003/background_mesh/12.obj
@@ -0,0 +1,792 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -4.39724588 5.25520754 -4.97568417
+v -4.39580297 5.26206636 -5.41153622
+v -4.39573622 3.19863391 -5.35727501
+v -4.39601946 3.60849380 -5.28660965
+v -4.39619923 3.60849309 -5.23221111
+v -4.39626312 4.14555264 -5.23220253
+v -4.39739323 4.14555120 -4.89120245
+v -4.39739990 4.20208454 -4.89120340
+v -4.39646482 4.20208406 -5.17354631
+v -4.39674091 4.55541182 -5.10288095
+v -4.39692402 4.55541277 -5.04760599
+v -4.39693213 4.62607813 -5.04760790
+v -4.39763832 4.62607718 -4.83435345
+v -4.39770746 4.80980730 -4.82022047
+v -4.39897108 4.80980730 -4.43862867
+v -4.39898300 4.90873957 -4.43862867
+v -4.39851475 4.90873909 -4.57995892
+v -4.39847326 4.95113850 -4.59409189
+v -4.39697123 4.95113754 -5.04761696
+v -4.39697933 5.02180290 -5.04761887
+v -4.39909840 5.09246969 -4.41036320
+v -4.39910364 5.13486910 -4.41036320
+v -4.39886999 5.13486910 -4.48102856
+v -4.39836168 5.18871355 -4.63649178
+v -4.39824009 5.21966791 -4.67423487
+v -4.39812756 5.18871212 -4.70715618
+v -4.39723825 5.18870735 -4.97568417
+v -4.40482903 5.25521040 -2.68613434
+v -4.40476131 5.23380041 -2.70563722
+v -4.40375233 5.25520992 -3.01119375
+v -4.40374422 5.18874407 -3.01119328
+v -4.40346336 5.18874216 -3.09599257
+v -4.40335798 5.09246922 -3.12425780
+v -4.40288687 5.06420374 -3.26558805
+v -4.40288210 5.02180433 -3.26558805
+v -4.40302229 5.02180433 -3.22318912
+v -4.40296841 4.96527195 -3.23732209
+v -4.40277767 4.93700600 -3.29385400
+v -4.40277290 4.89460659 -3.29385400
+v -4.40249014 4.88047314 -3.37865233
+v -4.40229654 4.82394028 -3.43518448
+v -4.40233660 4.76740789 -3.42105103
+v -4.40194464 4.62607718 -3.53411531
+v -4.40170288 4.55541182 -3.60478044
+v -4.40123129 4.52714539 -3.74611068
+v -4.40131474 4.44234657 -3.71784472
+v -4.40117073 4.41408062 -3.76024389
+v -4.40110922 4.28688288 -3.77437687
+v -4.40096855 4.28688288 -3.81677580
+v -4.40095806 4.20208406 -3.81677580
+v -4.40011549 4.20208406 -4.07117033
+v -4.40006208 4.14555168 -4.08530331
+v -4.39982653 4.13141870 -4.15596819
+v -4.39981985 4.07488632 -4.15596819
+v -4.40005398 4.07488632 -4.08530331
+v -4.40004873 4.03248692 -4.08530331
+v -4.39957857 4.01835394 -4.22663355
+v -4.39952517 3.96182156 -4.24076653
+v -4.39933491 3.93355513 -4.29729891
+v -4.39932632 3.86288977 -4.29729843
+v -4.39918566 3.86288977 -4.33969784
+v -4.39913225 3.80635738 -4.35383081
+v -4.39899063 3.79222441 -4.39622974
+v -4.39892292 3.62262678 -4.41036224
+v -4.39882946 3.62262678 -4.43862820
+v -4.39875078 3.35409784 -4.45276117
+v -4.39878750 3.26929951 -4.43862820
+v -4.39893293 3.31169891 -4.39622927
+v -4.39891100 3.12796831 -4.39622927
+v -4.39877224 3.14210129 -4.43862820
+v -4.39867544 3.11383533 -4.46689415
+v -4.39860821 2.94423819 -4.48102760
+v -4.39874697 2.93010521 -4.43862820
+v -4.39860678 2.93010521 -4.48102760
+v -4.39859676 2.84530640 -4.48102760
+v -4.39873695 2.84530640 -4.43862820
+v -4.39873171 2.80290699 -4.43862820
+v -4.39882517 2.80290699 -4.41036224
+v -4.39881516 2.71810842 -4.41036224
+v -4.39867640 2.73224163 -4.45276165
+v -4.39871311 2.64744282 -4.43862820
+v -4.39880657 2.64744282 -4.41036177
+v -4.39871168 2.63330984 -4.43862820
+v -4.39864635 2.47784567 -4.45276070
+v -4.39883518 2.49197888 -4.39622879
+v -4.39878988 2.11038494 -4.39622879
+v -4.39869595 2.11038494 -4.42449474
+v -4.39871788 2.29713249 -4.42449379
+v -4.39656496 2.29713178 -5.07461405
+v -4.39665937 2.33651543 -5.04754448
+v -4.39882994 4.01835394 -4.45276213
+v -4.39880323 3.79222441 -4.45276165
+v -4.39889669 3.79222441 -4.42449570
+v -4.39897203 4.03248692 -4.41036272
+v -4.39775515 4.03248692 -4.77782202
+v -4.39738274 4.06075335 -4.89120150
+v -4.39666080 2.35064912 -5.04754496
+v -4.39651823 2.29713178 -5.08874798
+v -4.39664888 2.25171733 -5.04754210
+v -4.39662695 2.06798720 -5.04753733
+v -4.39648485 2.01663113 -5.08874798
+v -4.39647722 1.95097184 -5.08874798
+v -4.39660692 1.89838982 -5.04753256
+v -4.39659500 1.79945815 -5.04752970
+v -4.39645338 1.75537002 -5.08874798
+v -4.39658356 1.70052636 -5.04752684
+v -4.39652920 1.24826717 -5.04751444
+v -4.39638710 1.19644582 -5.08874798
+v -4.39651775 1.14933550 -5.04751205
+v -4.39649391 0.95147198 -5.04750633
+v -4.39635134 0.89659160 -5.08874798
+v -4.39648199 0.85254031 -5.04750347
+v -4.39633989 0.80056006 -5.08874798
+v -4.39647055 0.75360864 -5.04750109
+v -4.39642334 0.35788178 -5.04749012
+v -4.39628172 0.31565973 -5.08874798
+v -4.39641285 0.27308321 -5.04748774
+v -4.39634895 -0.26397461 -5.04747295
+v -4.39620686 -0.31195530 -5.08874702
+v -4.39633703 -0.36290628 -5.04747009
+v -4.39622259 -1.32395744 -5.04744339
+v -4.39607954 -1.37819719 -5.08874655
+v -4.39621067 -1.42288876 -5.04744101
+v -4.39618540 -1.63488531 -5.04743481
+v -4.39604282 -1.68584645 -5.08874655
+v -4.39617348 -1.73381710 -5.04743242
+v -4.39609098 -2.42633891 -5.04741335
+v -4.39584827 -2.46513510 -5.11930132
+v -4.39607239 -2.58180308 -5.04740906
+v -4.39604378 -2.82206678 -5.04740238
+v -4.39611626 -2.21434355 -5.04741907
+v -4.39644432 -2.24260950 -4.94741488
+v -4.39663076 -2.24260902 -4.89112139
+v -4.39663076 -2.24260998 -4.89112139
+v -4.39700603 -2.24260950 -4.77781916
+v -4.39704943 -2.27087593 -4.76368523
+v -4.39691544 -2.61007023 -4.79195166
+v -4.39747715 -2.61007047 -4.62235498
+v -4.39747381 -2.63833690 -4.62235498
+v -4.39730263 -2.63833785 -4.67401791
+v -4.39728069 -2.82206798 -4.67401314
+v -4.40380001 -2.82206702 -2.70552969
+v -4.39940548 4.13141870 -4.28316545
+v -4.39964104 4.14555168 -4.21250057
+v -4.39963436 4.08901930 -4.21250057
+v -4.39940023 4.08901930 -4.28316545
+v -4.40087032 3.46716309 -3.81677532
+v -4.40087366 3.49542904 -3.81677556
+v -4.40101433 3.49542904 -3.77437663
+v -4.40111828 3.58022785 -3.74611020
+v -4.40113068 4.07488632 -3.76024365
+v -4.40066385 4.08901930 -3.90157390
+v -4.40047550 4.07488632 -3.95810580
+v -4.40046692 4.00422049 -3.95810580
+v -4.40059185 3.87702274 -3.91570663
+v -4.40068531 3.87702274 -3.88744068
+v -4.40067863 3.82049036 -3.88744068
+v -4.40006828 3.80635738 -4.07117033
+v -4.40001297 3.33996487 -4.07116985
+v -4.40033674 3.31169891 -3.97223854
+v -4.40085554 3.33996487 -3.81677532
+v -4.40086222 3.39649725 -3.81677532
+v -4.40104961 3.39649725 -3.76024342
+v -4.40105295 3.42476368 -3.76024342
+v -4.40086555 3.42476368 -3.81677532
+v -4.39975691 1.58746040 -4.08530235
+v -4.39981699 1.70052516 -4.07116938
+v -4.39991093 1.70052528 -4.04290342
+v -4.39991713 1.75537121 -4.04290438
+v -4.40005732 1.75537121 -4.00050306
+v -4.40006828 1.84185612 -4.00050402
+v -4.40021229 1.87012243 -3.95810509
+v -4.40022182 1.95097315 -3.95810461
+v -4.40087700 1.95097327 -3.76024294
+v -4.40093136 2.01663256 -3.74610972
+v -4.40095806 2.23758316 -3.74610972
+v -4.40072393 2.23758316 -3.81677485
+v -4.40073061 2.29713321 -3.81677556
+v -4.40074062 2.37891388 -3.81677508
+v -4.40097618 2.39304709 -3.74610996
+v -4.40074205 2.39304709 -3.81677508
+v -4.40065384 2.43544626 -3.84504104
+v -4.40023232 2.43544626 -3.97223830
+v -4.40023756 2.47784567 -3.97223830
+v -4.40047169 2.47784567 -3.90157318
+v -4.40047646 2.52024508 -3.90157318
+v -4.40028954 2.52024508 -3.95810533
+v -4.40030003 2.60504365 -3.95810533
+v -4.40044165 2.61917686 -3.91570616
+v -4.40044689 2.66157603 -3.91570616
+v -4.40077448 2.66157603 -3.81677508
+v -4.40087509 2.71810842 -3.78850913
+v -4.40078115 2.71810842 -3.81677508
+v -4.40079117 2.80290699 -3.81677508
+v -4.40097857 2.80290699 -3.76024318
+v -4.40093851 2.85943937 -3.77437615
+v -4.40103197 2.85943937 -3.74610996
+v -4.40105724 3.07143593 -3.74611020
+v -4.40091705 3.07143593 -3.78850937
+v -4.40103579 3.28343248 -3.76024342
+v -4.40084505 3.25516653 -3.81677532
+v -4.40083361 3.15623474 -3.81677532
+v -4.40036583 3.15623474 -3.95810556
+v -4.40035725 3.08556890 -3.95810556
+v -4.39997911 3.05730295 -4.07116985
+v -4.39984131 2.29713297 -4.08530235
+v -4.39965439 2.29713273 -4.14183521
+v -4.39952707 2.01663208 -4.17010021
+v -4.39929342 2.01663208 -4.24076462
+v -4.39928579 1.95097280 -4.24076462
+v -4.39927721 1.88425565 -4.24076557
+v -4.39898968 1.82772326 -4.32556343
+v -4.39898109 1.75537086 -4.32556248
+v -4.39865303 1.75537074 -4.42449379
+v -4.39857435 1.09280181 -4.42449427
+v -4.39876366 1.10693502 -4.36796236
+v -4.39877415 1.19644129 -4.36796236
+v -4.39891434 1.19644094 -4.32556248
+v -4.39892054 1.24826598 -4.32556295
+v -4.39920139 1.24826598 -4.24076509
+v -4.39916134 1.30479836 -4.25489807
+v -4.39935207 1.33306456 -4.19836617
+v -4.39951420 1.51679492 -4.15596724
+v -4.39872789 2.37891388 -4.42449474
+v -4.39873457 2.43544626 -4.42449474
+v -4.39863777 2.40718031 -4.45276070
+v -4.39867115 2.29713249 -4.43862772
+v -4.39877081 1.95097256 -4.39622974
+v -4.39886427 1.95097268 -4.36796284
+v -4.39885807 1.89838862 -4.36796284
+v -4.39871216 1.85598934 -4.41036177
+v -4.39884043 1.75537086 -4.36796284
+v -4.39651585 1.13520122 -5.04751158
+v -4.39653778 1.31893146 -5.04751635
+v -4.39841461 1.31893146 -4.48102665
+v -4.39840746 1.26239908 -4.48102665
+v -4.39826679 1.26239908 -4.52342558
+v -4.39840603 1.24826598 -4.48102665
+v -4.39839983 1.19644201 -4.48102760
+v -4.39825916 1.19644225 -4.52342558
+v -4.39822340 0.89658803 -4.52342606
+v -4.39841080 0.89658767 -4.46689272
+v -4.39839935 0.80055165 -4.46689272
+v -4.39803410 0.48507857 -4.56582451
+v -4.39767170 0.45681176 -4.67410326
+v -4.39643669 0.47094429 -5.04749298
+v -4.39836407 0.89658773 -4.48102808
+v -4.39842081 0.97973710 -4.46689320
+v -4.39832497 0.96560395 -4.49515963
+v -4.39735079 1.03626943 -4.79195309
+v -4.39724064 0.89658993 -4.82022047
+v -4.39733410 0.89658976 -4.79195356
+v -4.39629841 -0.68796879 -5.04746103
+v -4.39632702 -0.44770616 -5.04746771
+v -4.39722013 -0.44770604 -4.77781963
+v -4.39716578 -1.29569197 -4.76368570
+v -4.39622593 -1.29569316 -5.04744434
+v -4.39555693 3.19863319 -5.41150904
+v -4.39887619 5.18871641 -4.48103094
+v -4.39884043 1.75537086 -4.36796284
+v -4.39887190 1.75537086 -4.35854006
+v -4.39672184 2.86124492 -5.04755926
+v -4.39685965 4.01835299 -5.04759121
+v -4.39686155 4.03248596 -5.04759169
+vt 0.84007788 0.99915159
+vt 1.00000000 1.00000000
+vt 0.98009086 0.74475533
+vt 0.95416230 0.79545456
+vt 0.93420249 0.79545450
+vt 0.93419927 0.86188829
+vt 0.80908018 0.86188811
+vt 0.80908054 0.86888123
+vt 0.91267729 0.86888117
+vt 0.88674879 0.91258746
+vt 0.86646742 0.91258758
+vt 0.86646813 0.92132884
+vt 0.78822118 0.92132872
+vt 0.78303546 0.94405597
+vt 0.64302242 0.94405597
+vt 0.64302242 0.95629382
+vt 0.69487906 0.95629376
+vt 0.70006472 0.96153849
+vt 0.86647135 0.96153837
+vt 0.86647207 0.97027963
+vt 0.63265127 0.97902107
+vt 0.63265127 0.98426580
+vt 0.65857965 0.98426580
+vt 0.71562195 0.99092633
+vt 0.72947061 0.99475533
+vt 0.74155003 0.99092621
+vt 0.84007788 0.99092549
+vt 0.00000000 0.99915195
+vt 0.00715597 0.99650353
+vt 0.11927027 0.99915195
+vt 0.11927009 0.99093008
+vt 0.15038452 0.99092984
+vt 0.16075557 0.97902101
+vt 0.21261226 0.97552454
+vt 0.21261226 0.97027981
+vt 0.19705531 0.97027981
+vt 0.20224097 0.96328682
+vt 0.22298354 0.95979035
+vt 0.22298354 0.95454556
+vt 0.25409764 0.95279729
+vt 0.27484033 0.94580418
+vt 0.26965448 0.93881118
+vt 0.31113988 0.92132872
+vt 0.33706823 0.91258746
+vt 0.38892493 0.90909094
+vt 0.37855360 0.89860141
+vt 0.39411062 0.89510494
+vt 0.39929634 0.87937069
+vt 0.41485327 0.87937069
+vt 0.41485327 0.86888117
+vt 0.50819534 0.86888117
+vt 0.51338094 0.86188817
+vt 0.53930920 0.86013991
+vt 0.53930920 0.85314691
+vt 0.51338094 0.85314691
+vt 0.51338100 0.84790212
+vt 0.56523764 0.84615391
+vt 0.57042331 0.83916092
+vt 0.59116608 0.83566439
+vt 0.59116590 0.82692313
+vt 0.60672301 0.82692313
+vt 0.61190867 0.81993014
+vt 0.62746561 0.81818187
+vt 0.63265109 0.79720283
+vt 0.64302242 0.79720283
+vt 0.64820808 0.76398605
+vt 0.64302248 0.75349659
+vt 0.62746549 0.75874132
+vt 0.62746555 0.73601401
+vt 0.64302248 0.73776227
+vt 0.65339375 0.73426580
+vt 0.65857959 0.71328676
+vt 0.64302254 0.71153855
+vt 0.65857959 0.71153855
+vt 0.65857965 0.70104903
+vt 0.64302254 0.70104903
+vt 0.64302254 0.69580424
+vt 0.63265127 0.69580424
+vt 0.63265127 0.68531477
+vt 0.64820838 0.68706298
+vt 0.64302260 0.67657346
+vt 0.63265109 0.67657346
+vt 0.64302260 0.67482519
+vt 0.64820808 0.65559447
+vt 0.62746543 0.65734273
+vt 0.62746549 0.61013991
+vt 0.63783681 0.61013991
+vt 0.63783646 0.63324040
+vt 0.87637746 0.63324034
+vt 0.86644512 0.63811201
+vt 0.64820838 0.84615391
+vt 0.64820820 0.81818187
+vt 0.63783693 0.81818187
+vt 0.63265127 0.84790212
+vt 0.76747876 0.84790212
+vt 0.80907983 0.85139871
+vt 0.86644530 0.63986039
+vt 0.88156348 0.63324034
+vt 0.86644423 0.62762254
+vt 0.86644262 0.60489529
+vt 0.88156354 0.59854263
+vt 0.88156354 0.59042066
+vt 0.86644083 0.58391631
+vt 0.86643982 0.57167852
+vt 0.88156354 0.56622487
+vt 0.86643875 0.55944073
+vt 0.86643428 0.50349671
+vt 0.88156360 0.49708647
+vt 0.86643338 0.49125895
+vt 0.86643142 0.46678343
+vt 0.88156372 0.45999476
+vt 0.86643034 0.45454565
+vt 0.88156372 0.44811574
+vt 0.86642945 0.44230792
+vt 0.86642545 0.39335686
+vt 0.88156378 0.38813403
+vt 0.86642456 0.38286734
+vt 0.86641932 0.31643379
+vt 0.88156354 0.31049863
+vt 0.86641830 0.30419603
+vt 0.86640859 0.18531488
+vt 0.88156348 0.17860547
+vt 0.86640775 0.17307717
+vt 0.86640549 0.14685339
+vt 0.88156354 0.14054956
+vt 0.86640465 0.13461562
+vt 0.86639774 0.04895132
+vt 0.89277476 0.04415224
+vt 0.86639613 0.02972055
+vt 0.86639380 0.00000012
+vt 0.86639982 0.07517493
+vt 0.82970649 0.07167839
+vt 0.80905128 0.07167845
+vt 0.80905128 0.07167833
+vt 0.76747870 0.07167845
+vt 0.76229262 0.06818192
+vt 0.77266419 0.02622384
+vt 0.71043605 0.02622384
+vt 0.71043605 0.02272737
+vt 0.72939211 0.02272725
+vt 0.72939038 0.00000000
+vt 0.00711765 0.00000012
+vt 0.58598018 0.86013991
+vt 0.56005198 0.86188817
+vt 0.56005198 0.85489517
+vt 0.58598024 0.85489517
+vt 0.41485319 0.77797210
+vt 0.41485327 0.78146857
+vt 0.39929634 0.78146857
+vt 0.38892484 0.79195809
+vt 0.39411062 0.85314691
+vt 0.44596726 0.85489517
+vt 0.46670982 0.85314691
+vt 0.46670988 0.84440559
+vt 0.45115283 0.82867140
+vt 0.44078156 0.82867140
+vt 0.44078156 0.82167834
+vt 0.50819534 0.81993014
+vt 0.50819522 0.76223779
+vt 0.47189555 0.75874132
+vt 0.41485325 0.76223779
+vt 0.41485319 0.76923078
+vt 0.39411062 0.76923078
+vt 0.39411062 0.77272731
+vt 0.41485319 0.77272731
+vt 0.51338100 0.54545462
+vt 0.50819534 0.55944061
+vt 0.49782398 0.55944061
+vt 0.49782434 0.56622499
+vt 0.48226652 0.56622499
+vt 0.48226687 0.57692313
+vt 0.46670991 0.58041966
+vt 0.46670973 0.59042078
+vt 0.39411062 0.59042078
+vt 0.38892493 0.59854281
+vt 0.38892487 0.62587422
+vt 0.41485319 0.62587422
+vt 0.41485345 0.63324046
+vt 0.41485327 0.64335668
+vt 0.38892493 0.64510489
+vt 0.41485327 0.64510489
+vt 0.42522457 0.65034968
+vt 0.47189558 0.65034968
+vt 0.47189558 0.65559447
+vt 0.44596726 0.65559447
+vt 0.44596723 0.66083920
+vt 0.46670991 0.66083920
+vt 0.46670991 0.67132872
+vt 0.45115289 0.67307699
+vt 0.45115289 0.67832172
+vt 0.41485325 0.67832172
+vt 0.40448195 0.68531477
+vt 0.41485325 0.68531477
+vt 0.41485319 0.69580424
+vt 0.39411062 0.69580424
+vt 0.39929625 0.70279723
+vt 0.38892487 0.70279723
+vt 0.38892493 0.72902101
+vt 0.40448195 0.72902101
+vt 0.39411062 0.75524479
+vt 0.41485325 0.75174832
+vt 0.41485327 0.73951054
+vt 0.46670991 0.73951054
+vt 0.46670991 0.73076928
+vt 0.50819534 0.72727281
+vt 0.51338083 0.63324046
+vt 0.53412384 0.63324046
+vt 0.54449481 0.59854275
+vt 0.57042289 0.59854275
+vt 0.57042289 0.59042072
+vt 0.57042325 0.58216792
+vt 0.60153711 0.57517487
+vt 0.60153681 0.56622493
+vt 0.63783652 0.56622493
+vt 0.63783675 0.48426577
+vt 0.61709416 0.48601404
+vt 0.61709416 0.49708587
+vt 0.60153687 0.49708587
+vt 0.60153705 0.50349653
+vt 0.57042313 0.50349653
+vt 0.57560879 0.51048958
+vt 0.55486619 0.51398605
+vt 0.53930920 0.53671330
+vt 0.63783675 0.64335668
+vt 0.63783675 0.65034968
+vt 0.64820808 0.64685321
+vt 0.64302242 0.63324040
+vt 0.62746590 0.59042072
+vt 0.61709428 0.59042072
+vt 0.61709428 0.58391613
+vt 0.63265121 0.57867140
+vt 0.61709428 0.56622493
+vt 0.86643326 0.48951057
+vt 0.86643499 0.51223785
+vt 0.65857953 0.51223779
+vt 0.65857953 0.50524485
+vt 0.67413646 0.50524485
+vt 0.65857953 0.50349653
+vt 0.65857989 0.49708599
+vt 0.67413646 0.49708599
+vt 0.67413670 0.45999432
+vt 0.65339357 0.45999423
+vt 0.65339357 0.44811466
+vt 0.68969351 0.40909097
+vt 0.72942299 0.40559441
+vt 0.86642653 0.40734258
+vt 0.65858006 0.45999426
+vt 0.65339375 0.47027975
+vt 0.66376525 0.46853152
+vt 0.77266419 0.47727275
+vt 0.78303599 0.45999455
+vt 0.77266437 0.45999452
+vt 0.86641496 0.26398611
+vt 0.86641741 0.29370636
+vt 0.76747859 0.29370639
+vt 0.76229268 0.18881129
+vt 0.86640894 0.18881114
+vt 0.99999028 0.74475521
+vt 0.65858054 0.99092668
+vt 0.61709428 0.56622493
+vt 0.61363691 0.56622493
+vt 0.86645049 0.70302057
+vt 0.86646199 0.84615380
+vt 0.86646217 0.84790200
+f 24/24 25/25 26/26
+f 27/27 1/1 2/2
+f 4/4 258/258 3/3
+f 4/4 5/5 6/6
+f 9/9 7/7 8/8
+f 10/10 11/11 12/12
+f 12/12 13/13 14/14
+f 17/17 15/15 16/16
+f 14/14 18/18 19/19
+f 23/23 21/21 22/22
+f 23/23 259/259 24/24
+f 6/6 258/258 4/4
+f 7/7 9/9 6/6
+f 15/15 17/17 14/14
+f 21/21 23/23 20/20
+f 23/23 24/24 26/26
+f 258/258 6/6 2/2
+f 6/6 9/9 10/10
+f 18/18 14/14 17/17
+f 20/20 23/23 26/26
+f 2/2 6/6 10/10
+f 12/12 14/14 19/19
+f 20/20 26/26 27/27
+f 19/19 10/10 12/12
+f 20/20 27/27 2/2
+f 10/10 19/19 2/2
+f 19/19 20/20 2/2
+f 29/29 30/30 31/31
+f 31/31 32/32 33/33
+f 36/36 34/34 35/35
+f 37/37 38/38 39/39
+f 42/42 40/40 41/41
+f 44/44 45/45 46/46
+f 197/197 196/196 195/195
+f 192/192 194/194 193/193
+f 191/191 190/190 189/189
+f 186/186 188/188 187/187
+f 185/185 184/184 183/183
+f 182/182 181/181 180/180
+f 180/180 179/179 178/178
+f 178/178 177/177 176/176
+f 174/174 173/173 172/172
+f 172/172 171/171 170/170
+f 170/170 169/169 168/168
+f 168/168 167/167 166/166
+f 166/166 223/223 222/222
+f 222/222 221/221 220/220
+f 220/220 219/219 218/218
+f 218/218 217/217 216/216
+f 214/214 260/260 232/232
+f 212/212 261/261 213/213
+f 231/231 212/212 230/230
+f 230/230 211/211 210/210
+f 209/209 208/208 207/207
+f 82/82 205/205 79/79
+f 205/205 204/204 203/203
+f 203/203 202/202 201/201
+f 200/200 199/199 198/198
+f 149/149 148/148 147/147
+f 147/147 165/165 164/164
+f 163/163 162/162 161/161
+f 155/155 157/157 156/156
+f 29/29 198/198 197/197
+f 46/46 47/47 48/48
+f 48/48 49/49 50/50
+f 153/153 51/51 52/52
+f 55/55 53/53 54/54
+f 56/56 57/57 58/58
+f 58/58 59/59 60/60
+f 60/60 61/61 62/62
+f 62/62 63/63 64/64
+f 64/64 65/65 66/66
+f 66/66 67/67 68/68
+f 69/69 70/70 71/71
+f 71/71 72/72 73/73
+f 73/73 74/74 75/75
+f 76/76 77/77 78/78
+f 79/79 80/80 81/81
+f 85/85 83/83 84/84
+f 215/215 249/249 248/248
+f 99/99 88/88 89/89
+f 90/90 262/262 97/97
+f 100/100 101/101 102/102
+f 104/104 105/105 106/106
+f 107/107 108/108 109/109
+f 110/110 111/111 112/112
+f 112/112 113/113 114/114
+f 115/115 116/116 117/117
+f 118/118 119/119 120/120
+f 121/121 122/122 123/123
+f 124/124 125/125 126/126
+f 127/127 128/128 129/129
+f 127/127 130/130 131/131
+f 126/126 132/132 133/133
+f 133/133 134/134 135/135
+f 142/142 135/135 136/136
+f 142/142 136/136 138/138
+f 136/136 137/137 138/138
+f 139/139 140/140 141/141
+f 180/180 29/29 197/197
+f 29/29 31/31 33/33
+f 34/34 36/36 33/33
+f 40/40 42/42 39/39
+f 48/48 44/44 46/46
+f 194/194 192/192 195/195
+f 188/188 186/186 189/189
+f 185/185 183/183 182/182
+f 180/180 178/178 176/176
+f 174/174 172/172 170/170
+f 170/170 168/168 166/166
+f 220/220 218/218 216/216
+f 212/212 232/232 261/261
+f 211/211 230/230 212/212
+f 229/229 210/210 209/209
+f 205/205 82/82 206/206
+f 200/200 198/198 150/150
+f 149/149 147/147 164/164
+f 157/157 155/155 158/158
+f 29/29 150/150 198/198
+f 53/53 55/55 52/52
+f 158/158 58/58 60/60
+f 158/158 62/62 64/64
+f 64/64 66/66 68/68
+f 69/69 71/71 73/73
+f 73/73 75/75 76/76
+f 79/79 81/81 82/82
+f 83/83 85/85 82/82
+f 98/98 90/90 97/97
+f 100/100 102/102 103/103
+f 250/250 110/110 251/251
+f 252/252 114/114 115/115
+f 247/247 118/118 120/120
+f 135/135 123/123 124/124
+f 131/131 126/126 127/127
+f 130/130 127/127 129/129
+f 126/126 133/133 135/135
+f 114/114 252/252 251/251
+f 120/120 142/142 247/247
+f 139/139 141/141 142/142
+f 37/37 29/29 33/33
+f 33/33 36/36 37/37
+f 150/150 42/42 43/43
+f 151/151 43/43 44/44
+f 189/189 186/186 191/191
+f 186/186 185/185 182/182
+f 174/174 170/170 166/166
+f 212/212 231/231 232/232
+f 210/210 229/229 230/230
+f 150/150 149/149 164/164
+f 158/158 155/155 154/154
+f 43/43 151/151 150/150
+f 153/153 52/52 55/55
+f 62/62 158/158 60/60
+f 78/78 73/73 76/76
+f 207/207 82/82 85/85
+f 90/90 98/98 89/89
+f 107/107 214/214 106/106
+f 251/251 110/110 112/112
+f 247/247 115/115 117/117
+f 142/142 120/120 121/121
+f 132/132 126/126 131/131
+f 121/121 135/135 142/142
+f 138/138 139/139 142/142
+f 39/39 29/29 37/37
+f 39/39 150/150 29/29
+f 191/191 186/186 182/182
+f 174/174 166/166 222/222
+f 232/232 231/231 214/214
+f 86/86 229/229 209/209
+f 150/150 164/164 163/163
+f 56/56 154/154 153/153
+f 44/44 48/48 151/151
+f 153/153 55/55 56/56
+f 159/159 64/64 68/68
+f 205/205 73/73 78/78
+f 82/82 207/207 206/206
+f 99/99 89/89 98/98
+f 106/106 214/214 104/104
+f 110/110 250/250 109/109
+f 247/247 117/117 118/118
+f 135/135 124/124 126/126
+f 115/115 247/247 252/252
+f 42/42 150/150 39/39
+f 180/180 191/191 182/182
+f 174/174 222/222 220/220
+f 86/86 209/209 207/207
+f 200/200 150/150 163/163
+f 151/151 48/48 50/50
+f 159/159 68/68 69/69
+f 79/79 205/205 78/78
+f 88/88 99/99 87/87
+f 214/214 250/250 215/215
+f 114/114 251/251 112/112
+f 135/135 121/121 123/123
+f 29/29 180/180 28/28
+f 191/191 180/180 192/192
+f 161/161 200/200 163/163
+f 152/152 151/151 50/50
+f 73/73 205/205 69/69
+f 231/231 103/103 214/214
+f 109/109 250/250 107/107
+f 180/180 197/197 195/195
+f 192/192 180/180 195/195
+f 200/200 161/161 201/201
+f 51/51 152/152 50/50
+f 207/207 85/85 86/86
+f 104/104 214/214 103/103
+f 215/215 250/250 249/249
+f 176/176 28/28 180/180
+f 160/160 201/201 161/161
+f 152/152 51/51 153/153
+f 250/250 214/214 107/107
+f 175/175 28/28 176/176
+f 201/201 160/160 203/203
+f 154/154 56/56 158/158
+f 252/252 249/249 250/250
+f 28/28 175/175 142/142
+f 159/159 203/203 160/160
+f 58/58 158/158 56/56
+f 249/249 252/252 247/247
+f 142/142 175/175 174/174
+f 203/203 159/159 205/205
+f 64/64 159/159 158/158
+f 220/220 247/247 142/142
+f 142/142 174/174 220/220
+f 69/69 205/205 159/159
+f 216/216 247/247 220/220
+f 229/229 86/86 228/228
+f 247/247 216/216 248/248
+f 87/87 228/228 86/86
+f 248/248 216/216 215/215
+f 100/100 87/87 99/99
+f 228/228 103/103 231/231
+f 103/103 87/87 100/100
+f 87/87 103/103 228/228
+f 91/91 92/92 93/93
+f 263/263 96/96 264/264
+f 95/95 263/263 91/91
+f 91/91 93/93 94/94
+f 96/96 263/263 95/95
+f 95/95 91/91 94/94
+f 143/143 146/146 145/145
+f 145/145 144/144 143/143
+f 224/224 225/225 226/226
+f 226/226 227/227 224/224
+f 241/241 245/245 243/243
+f 245/245 244/244 243/243
+f 243/243 242/242 241/241
+f 240/240 239/239 238/238
+f 237/237 236/236 235/235
+f 240/240 234/234 233/233
+f 245/245 241/241 246/246
+f 240/240 238/238 237/237
+f 234/234 237/237 235/235
+f 246/246 241/241 233/233
+f 234/234 240/240 237/237
+f 240/240 233/233 241/241
+f 253/253 257/257 256/256
+f 253/253 255/255 254/254
+f 255/255 253/253 256/256
+
diff --git a/ai_002_003/background_mesh/13.obj b/ai_002_003/background_mesh/13.obj
new file mode 100644
index 0000000000000000000000000000000000000000..33ae73b34a66073c6df22993fb307a8f2e32b791
--- /dev/null
+++ b/ai_002_003/background_mesh/13.obj
@@ -0,0 +1,1093 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -2.09291553 -4.23612070 -2.37811160
+v -2.09291553 -4.23612070 -2.46295810
+v -2.09290814 -4.29268503 -2.51952243
+v -2.09290814 -4.29268503 -2.43467593
+v -2.09292316 -4.17955685 -2.39225268
+v -2.09292316 -4.17955685 -2.50538135
+v -2.09291935 -4.20783854 -2.54780459
+v -2.09291553 -4.23612070 -2.54780459
+v -2.09343147 -0.30490255 -2.70560265
+v -2.09292126 -4.19369793 -2.70555067
+v -2.09292889 -4.13713360 -2.59022760
+v -2.09292865 -4.13713408 -2.70555139
+v -2.09293056 -4.12299252 -2.53366351
+v -2.09292316 -4.17955685 -2.57608652
+v -2.09292865 -4.13713360 -2.43467593
+v -2.09292483 -4.16541576 -2.42053485
+v -2.09292483 -4.16541576 -2.34982944
+v -2.09293413 -4.09471035 -2.25084209
+v -2.09292483 -4.16541576 -2.26498318
+v -2.09292126 -4.19369745 -2.37811160
+v -2.09291744 -4.22197962 -2.37811160
+v -2.09291935 -4.20783854 -2.26498318
+v -2.09291387 -4.25026178 -2.34982944
+v -2.09291005 -4.27854395 -2.34982944
+v -2.09291005 -4.27854395 -2.26498318
+v -2.09290266 -4.33510828 -2.30740643
+v -2.09290075 -4.34924936 -2.25084209
+v -2.09289718 -4.37753153 -2.27912426
+v -2.09289145 -4.41995478 -2.25084209
+v -2.09289718 -4.37753153 -2.20841885
+v -2.09289718 -4.37753153 -2.01044369
+v -2.09290266 -4.33510828 -1.95387948
+v -2.09289885 -4.36339045 -1.93973839
+v -2.09290051 -4.34924936 -1.72762227
+v -2.09289861 -4.36339045 -1.79832768
+v -2.09289503 -4.39167261 -1.79832768
+v -2.09289861 -4.36339045 -1.81246877
+v -2.09289694 -4.37753153 -1.86903298
+v -2.09289312 -4.40581369 -1.86903298
+v -2.09289122 -4.41995478 -1.79832768
+v -2.09288573 -4.46237803 -1.82660985
+v -2.09288383 -4.47651911 -1.72762227
+v -2.09287834 -4.51894236 -1.82660985
+v -2.09287262 -4.56136560 -1.78418660
+v -2.09287262 -4.56136560 -1.86903298
+v -2.09286904 -4.58964777 -1.86903298
+v -2.09287119 -4.57550669 -1.93973839
+v -2.09286356 -4.63207102 -2.01044369
+v -2.09286332 -4.63207102 -1.27510786
+v -2.09285951 -4.66064072 -1.22557008
+v -2.09286690 -4.60535049 -1.18094480
+v -2.09286308 -4.63207102 -1.13369727
+v -2.09286284 -4.63207102 -0.42664349
+v -2.09286857 -4.58964777 -0.42664349
+v -2.09286857 -4.58964777 -0.45492566
+v -2.09287047 -4.57550669 -0.42664349
+v -2.09287405 -4.54722452 -0.45492566
+v -2.09287596 -4.53308344 -0.42664349
+v -2.09287977 -4.50480127 -0.45492566
+v -2.09288144 -4.49066019 -0.42664349
+v -2.09288526 -4.46237803 -0.45492566
+v -2.09288716 -4.44823694 -0.42664349
+v -2.09289074 -4.41995478 -0.45492566
+v -2.09289265 -4.40581369 -0.42664349
+v -2.09297800 -3.75532436 -0.42664349
+v -2.09298372 -3.71341324 -0.46105087
+v -2.09286714 -4.60378885 -1.79832768
+v -2.09286904 -4.58964777 -1.85489202
+v -2.09286523 -4.61792994 -1.85489202
+v -2.09288383 -4.47651911 -1.67105794
+v -2.09288573 -4.46237803 -1.57207048
+v -2.09288573 -4.46237803 -1.72762227
+v -2.09289312 -4.40581369 -1.72762227
+v -2.09289122 -4.41995478 -1.65691686
+v -2.09290433 -4.32096720 -1.88317406
+v -2.09290791 -4.29268503 -1.78418660
+v -2.09290814 -4.29268503 -1.92559731
+v -2.09290266 -4.33510828 -1.93973839
+v -2.09291172 -4.26440287 -1.54378831
+v -2.09290981 -4.27854395 -1.48722398
+v -2.09290981 -4.27854395 -1.64277589
+v -2.09291363 -4.25026178 -1.88317406
+v -2.09291530 -4.23612070 -1.68519902
+v -2.09291720 -4.22197962 -1.82660985
+v -2.09292293 -4.17955685 -1.82660985
+v -2.09292459 -4.16541576 -1.72762227
+v -2.09292459 -4.16541576 -1.85489202
+v -2.09293199 -4.10885143 -1.82660985
+v -2.09293056 -4.12299252 -2.06700802
+v -2.09291387 -4.25026178 -2.16599560
+v -2.09289336 -4.40581369 -2.27912426
+v -2.09289145 -4.41995478 -2.23670101
+v -2.09290457 -4.32096720 -1.96802056
+v -2.09291196 -4.26440287 -1.95387948
+v -2.09291196 -4.26440287 -2.26498318
+v -2.09291744 -4.22197962 -2.15185452
+v -2.09291553 -4.23612070 -2.20841885
+v -2.09292483 -4.16541576 -2.06700802
+v -2.09291935 -4.20783854 -2.03872585
+v -2.09291553 -4.23612070 -2.03872585
+v -2.09290266 -4.33510828 -2.19427776
+v -2.09290266 -4.33510828 -2.25084209
+v -2.09292293 -4.17955685 -1.72762227
+v -2.09292316 -4.17955685 -2.08114910
+v -2.09291935 -4.20783854 -2.15185452
+v -2.09291005 -4.27854395 -2.10943127
+v -2.09291196 -4.26440287 -2.01044369
+v -2.09290624 -4.30682611 -2.02458477
+v -2.09290457 -4.32096720 -2.10943127
+v -2.09290075 -4.34924936 -2.10943127
+v -2.09291720 -4.22197962 -1.68519902
+v -2.09293222 -4.10885143 -1.98216164
+v -2.09292126 -4.19369745 -2.26498318
+v -2.09292674 -4.15127468 -2.16599560
+v -2.09293056 -4.12299252 -2.13771343
+v -2.09293222 -4.10885143 -2.08114910
+v -2.09292674 -4.15127468 -2.12357235
+v -2.09306574 -3.09069395 -1.24682581
+v -2.09306550 -3.09069395 -1.19026148
+v -2.09307122 -3.04827070 -1.69934011
+v -2.09306240 -3.11897612 -2.60436869
+v -2.09306216 -3.11897612 -2.57608652
+v -2.09292817 -4.13713360 -0.73774713
+v -2.09293008 -4.12299252 -0.66704178
+v -2.09293342 -4.09665966 -0.77037370
+v -2.09292817 -4.13713360 -0.94986326
+v -2.09292293 -4.17598677 -0.83439958
+v -2.09293175 -4.10885143 -0.63875961
+v -2.09293008 -4.12299252 -0.59633642
+v -2.09292078 -4.19369745 -0.76602930
+v -2.09292412 -4.16711903 -0.82724249
+v -2.09291482 -4.23953438 -0.88568985
+v -2.09291887 -4.20783854 -0.93572217
+v -2.09291887 -4.20783854 -1.04885077
+v -2.09291768 -4.22197962 -2.70555019
+v -2.09292126 -4.19369745 -2.57608652
+v -2.09291410 -4.25026178 -2.63265085
+v -2.09291387 -4.25026226 -2.70554996
+v -2.09290361 -4.32381630 -0.95371497
+v -2.09290957 -4.27854395 -0.99228644
+v -2.09290791 -4.29268503 -1.27510786
+v -2.09290767 -4.29268503 -1.00642753
+v -2.09291506 -4.23757839 -0.88411129
+v -2.09290957 -4.27854395 -0.85087574
+v -2.09291339 -4.25026178 -0.70946497
+v -2.09291148 -4.26440287 -0.83673465
+v -2.09290838 -4.29268503 -2.70554924
+v -2.09291196 -4.26440287 -2.70554972
+v -2.09291387 -4.25026178 -2.53366351
+v -2.09291005 -4.27854395 -2.53366351
+v -2.09290648 -4.30682611 -2.60436869
+v -2.09290028 -4.34924936 -1.07713294
+v -2.09290218 -4.33510828 -1.03470969
+v -2.09289861 -4.36332798 -0.98560536
+v -2.09290481 -4.31494904 -0.94655812
+v -2.09290576 -4.30682611 -0.63875961
+v -2.09290409 -4.32096720 -0.87915790
+v -2.09290767 -4.29256439 -0.92849100
+v -2.09290218 -4.33510828 -0.76602930
+v -2.09289694 -4.37753153 -1.28924894
+v -2.09289479 -4.39167261 -1.17612040
+v -2.09289837 -4.36339045 -1.17612040
+v -2.09290624 -4.30682611 -2.32154751
+v -2.09290814 -4.29268503 -2.40639377
+v -2.09290457 -4.32096720 -2.47709918
+v -2.09290075 -4.34924936 -2.47709918
+v -2.09290075 -4.34924936 -2.39225268
+v -2.09289908 -4.36339092 -2.70554852
+v -2.09288979 -4.43409634 -2.70554757
+v -2.09289336 -4.40581417 -2.70554781
+v -2.09289360 -4.40581369 -2.64679193
+v -2.09289527 -4.39167309 -2.70554805
+v -2.09290624 -4.30682611 -2.50538135
+v -2.09289885 -4.36339045 -2.56194568
+v -2.09289718 -4.37753153 -2.37811160
+v -2.09290075 -4.34924936 -2.36397052
+v -2.09290075 -4.34924936 -2.29326534
+v -2.09289527 -4.39167261 -2.32154751
+v -2.09288192 -4.49066019 -1.28924894
+v -2.09288549 -4.46237803 -1.17612040
+v -2.09288549 -4.46237803 -0.93572217
+v -2.09288907 -4.43409586 -0.93572217
+v -2.09289098 -4.41995478 -0.55391324
+v -2.09288907 -4.43409586 -0.62461853
+v -2.09288549 -4.46237803 -0.61047751
+v -2.09288740 -4.44823694 -0.75188822
+v -2.09288359 -4.47651911 -0.75188822
+v -2.09288549 -4.46237803 -0.89329892
+v -2.09288168 -4.49066019 -0.89329892
+v -2.09288740 -4.44895744 -1.05471790
+v -2.09288430 -4.47134304 -1.07278550
+v -2.09288001 -4.50480127 -1.03470969
+v -2.09288335 -4.47990561 -1.07969654
+v -2.09287810 -4.51972151 -1.11183226
+v -2.09288168 -4.49066019 -1.16197932
+v -2.09287810 -4.51894236 -1.17612040
+v -2.09289289 -4.40581369 -0.68118286
+v -2.09289670 -4.37753153 -0.69532394
+v -2.09289479 -4.39167261 -0.55391324
+v -2.09289837 -4.36339045 -0.56805426
+v -2.09289479 -4.39167261 -0.93572217
+v -2.09289885 -4.36137247 -0.98402679
+v -2.09288931 -4.43378830 -1.04247439
+v -2.09289479 -4.39167261 -1.14783823
+v -2.09289098 -4.41995478 -1.14783823
+v -2.09289312 -4.40581369 -1.28924894
+v -2.09288764 -4.44823694 -1.31753111
+v -2.09288573 -4.46237803 -1.23268473
+v -2.09288931 -4.43409586 -1.23268473
+v -2.09288907 -4.43409586 -1.14783823
+v -2.09289098 -4.41995478 -1.10541511
+v -2.09288716 -4.44926167 -1.05496347
+v -2.09288907 -4.43409586 -0.96400434
+v -2.09289646 -4.37849808 -0.99784911
+v -2.09289336 -4.40581369 -2.50538135
+v -2.09289718 -4.37753153 -2.53366351
+v -2.09289885 -4.36339045 -2.46295810
+v -2.09289718 -4.37753153 -2.40639377
+v -2.09289718 -4.37753153 -2.44881701
+v -2.09289336 -4.40581369 -2.44881701
+v -2.09289336 -4.40581369 -2.40639377
+v -2.09289145 -4.41995478 -1.96802056
+v -2.09289527 -4.39167261 -1.96802056
+v -2.09289527 -4.39167261 -2.03872585
+v -2.09289145 -4.41995478 -2.03872585
+v -2.09289360 -4.40581369 -2.61850977
+v -2.09289527 -4.39167261 -2.56194568
+v -2.09289145 -4.41995478 -2.56194568
+v -2.09288955 -4.43409586 -2.23670101
+v -2.09289336 -4.40581369 -2.10943127
+v -2.09288597 -4.46237803 -2.16599560
+v -2.09288597 -4.46237803 -2.25084209
+v -2.09288955 -4.43409586 -2.26498318
+v -2.09288955 -4.43409586 -2.27912426
+v -2.09289145 -4.41995478 -2.33568835
+v -2.09288788 -4.44823694 -2.30740643
+v -2.09288597 -4.46237803 -2.39225268
+v -2.09288955 -4.43409586 -2.36397052
+v -2.09288955 -4.43409586 -2.40639377
+v -2.09288383 -4.47651911 -1.89731514
+v -2.09288764 -4.44823694 -1.89731514
+v -2.09288788 -4.44823694 -1.99630260
+v -2.09288406 -4.47651911 -1.98216164
+v -2.09288216 -4.49066019 -2.08114910
+v -2.09288788 -4.44823694 -2.09529018
+v -2.09288788 -4.44823694 -2.13771343
+v -2.09288406 -4.47651911 -2.13771343
+v -2.09288406 -4.47651911 -2.53366351
+v -2.09288788 -4.44823694 -2.50538135
+v -2.09288788 -4.44823694 -2.57608652
+v -2.09288406 -4.47651911 -2.57608652
+v -2.09288049 -4.50480127 -2.70554662
+v -2.09288788 -4.44823694 -2.70554733
+v -2.09288621 -4.46237803 -2.64679193
+v -2.09288239 -4.49066019 -2.64679193
+v -2.09286880 -4.58964777 -1.07713294
+v -2.09287071 -4.57550669 -1.04885077
+v -2.09287286 -4.55892849 -1.14347708
+v -2.09287810 -4.51894236 -0.55391324
+v -2.09288549 -4.46237803 -0.55391324
+v -2.09288549 -4.46237803 -0.59633642
+v -2.09288168 -4.49066019 -0.59633642
+v -2.09288168 -4.49066019 -0.87915790
+v -2.09287810 -4.51894236 -0.87915790
+v -2.09288001 -4.50480127 -1.02056861
+v -2.09287620 -4.53308344 -1.02056861
+v -2.09288001 -4.50394249 -1.09909713
+v -2.09287429 -4.54722452 -1.20440257
+v -2.09287262 -4.56136560 -1.24682581
+v -2.09286880 -4.59018135 -1.16870129
+v -2.09287810 -4.51941681 -1.11158669
+v -2.09287238 -4.56136560 -0.97814536
+v -2.09287620 -4.53308344 -0.97814536
+v -2.09288049 -4.50480127 -2.02458477
+v -2.09288406 -4.47651911 -1.99630260
+v -2.09288406 -4.47651911 -2.03872585
+v -2.09287477 -4.54722452 -2.25084209
+v -2.09287477 -4.54722452 -2.32154751
+v -2.09287119 -4.57550669 -2.32154751
+v -2.09286928 -4.58964777 -2.25084209
+v -2.09287667 -4.53308344 -2.26498318
+v -2.09287858 -4.51894236 -2.18013668
+v -2.09287477 -4.54722452 -2.18013668
+v -2.09288049 -4.50480127 -2.12357235
+v -2.09288406 -4.47651911 -2.19427776
+v -2.09287667 -4.53308344 -2.29326534
+v -2.09288216 -4.49066019 -2.30740643
+v -2.09288216 -4.49066019 -2.36397052
+v -2.09287858 -4.51894236 -2.36397052
+v -2.09287286 -4.56136560 -2.02458477
+v -2.09287667 -4.53308344 -1.92559731
+v -2.09288049 -4.50480127 -1.93973839
+v -2.09288025 -4.50480127 -1.85489202
+v -2.09287286 -4.56136560 -1.91145623
+v -2.09287286 -4.56136560 -1.98216164
+v -2.09286737 -4.60378885 -1.98216164
+v -2.09286928 -4.58964777 -2.05286694
+v -2.09287858 -4.51894236 -2.53366351
+v -2.09288049 -4.50480127 -2.44881701
+v -2.09287667 -4.53308344 -2.43467593
+v -2.09286761 -4.60378885 -2.59022760
+v -2.09287119 -4.57550669 -2.57608652
+v -2.09287310 -4.56136560 -2.63265085
+v -2.09287500 -4.54722500 -2.70554590
+v -2.09287500 -4.54722452 -2.61850977
+v -2.09287882 -4.51894236 -2.60436869
+v -2.09288049 -4.50480175 -2.70554662
+v -2.09287858 -4.51894236 -2.01044369
+v -2.09287667 -4.53308344 -2.08114910
+v -2.09287477 -4.54722452 -2.02458477
+v -2.09287477 -4.54722452 -2.15185452
+v -2.09287667 -4.53308344 -2.10943127
+v -2.09287119 -4.57550669 -2.08114910
+v -2.09286928 -4.58964777 -2.06700802
+v -2.09286356 -4.63207102 -2.15185452
+v -2.09286356 -4.63207102 -2.03872585
+v -2.09286356 -4.63207102 -2.19427776
+v -2.09287119 -4.57550669 -2.13771343
+v -2.09286547 -4.61792994 -2.29326534
+v -2.09286356 -4.63207102 -2.33568835
+v -2.09287119 -4.57550669 -2.33568835
+v -2.09287119 -4.57550669 -2.37811160
+v -2.09286547 -4.61792994 -2.36397052
+v -2.09286547 -4.61792994 -2.44881701
+v -2.09286356 -4.63207102 -2.47709918
+v -2.09286928 -4.58964777 -2.46295810
+v -2.09286571 -4.61792994 -2.59022760
+v -2.09287119 -4.57550669 -2.39225268
+v -2.09287286 -4.56136560 -2.47709918
+v -2.09286642 -4.60895920 -1.18385708
+v -2.09286904 -4.58964777 -1.23268473
+v -2.09286356 -4.62969208 -1.20059097
+v -2.09287095 -4.57470703 -1.15621197
+v -2.09287810 -4.51941681 -1.11158669
+v -2.09287810 -4.51972198 -1.11183250
+v -2.09287810 -4.51941681 -1.11158669
+v -2.09287810 -4.51972151 -1.11183226
+v -2.09288001 -4.50424767 -1.09934318
+v -2.09288001 -4.50394249 -1.09909713
+v -2.09288311 -4.48059940 -1.08025658
+v -2.09288001 -4.50394249 -1.09909713
+v -2.09288406 -4.47329903 -1.07436454
+v -2.09288406 -4.47329903 -1.07436454
+v -2.09288931 -4.43378830 -1.04247439
+v -2.09288931 -4.43348312 -1.04222834
+v -2.09288979 -4.42865181 -0.78872931
+v -2.09289241 -4.40944576 -1.02282774
+v -2.09289646 -4.37880230 -0.99809468
+v -2.09289861 -4.36332798 -0.98560536
+v -2.09289885 -4.36137247 -0.98402679
+v -2.09289861 -4.36332798 -0.98560536
+v -2.09290576 -4.30834293 -0.94122636
+v -2.09290767 -4.29286861 -0.92873657
+v -2.09290719 -4.29765320 -0.93259799
+v -2.09291291 -4.25305271 -0.89660084
+v -2.09293151 -4.11213350 -0.78286302
+v -2.09292412 -4.16742373 -0.82748854
+v -2.09289050 -4.42466831 -0.68118286
+v -2.09293246 -4.10885191 -2.70555186
+v -2.09289885 -4.36137247 -0.98402679
+v -2.09292221 -4.18259287 -0.83973157
+v -2.09288931 -4.43378830 -1.04247439
+v -2.09293032 -4.12547541 -2.70555162
+v -2.09287047 -4.58116341 -2.70554543
+vt 0.85845351 0.09746224
+vt 0.89512545 0.09746224
+vt 0.91957337 0.08447608
+vt 0.88290149 0.08447608
+vt 0.86456549 0.11044830
+vt 0.91346139 0.11044830
+vt 0.93179733 0.10395533
+vt 0.93179733 0.09746224
+vt 1.00000000 1.00000000
+vt 0.99997753 0.10720176
+vt 0.95013320 0.12018792
+vt 0.99997783 0.12018781
+vt 0.92568535 0.12343446
+vt 0.94402122 0.11044830
+vt 0.88290149 0.12018792
+vt 0.87678951 0.11369484
+vt 0.84622955 0.11369484
+vt 0.80344576 0.12992755
+vt 0.80955774 0.11369484
+vt 0.85845351 0.10720187
+vt 0.85845351 0.10070878
+vt 0.80955774 0.10395533
+vt 0.84622955 0.09421571
+vt 0.84622955 0.08772262
+vt 0.80955774 0.08772262
+vt 0.82789367 0.07473645
+vt 0.80344576 0.07148992
+vt 0.81566972 0.06499683
+vt 0.80344576 0.05525721
+vt 0.78510982 0.06499683
+vt 0.69954199 0.06499683
+vt 0.67509413 0.07473645
+vt 0.66898215 0.06824338
+vt 0.57730240 0.07148992
+vt 0.60786235 0.06824338
+vt 0.60786235 0.06175029
+vt 0.61397433 0.06824338
+vt 0.63842219 0.06499683
+vt 0.63842219 0.05850375
+vt 0.60786235 0.05525721
+vt 0.62008631 0.04551759
+vt 0.57730240 0.04227105
+vt 0.62008631 0.03253142
+vt 0.60175037 0.02279180
+vt 0.63842219 0.02279180
+vt 0.63842219 0.01629872
+vt 0.66898215 0.01954526
+vt 0.69954199 0.00655909
+vt 0.38171899 0.00655909
+vt 0.36030802 0.00000000
+vt 0.34102032 0.01269365
+vt 0.32059923 0.00655909
+vt 0.01500014 0.00655909
+vt 0.01500014 0.01629872
+vt 0.02722411 0.01629872
+vt 0.01500014 0.01954526
+vt 0.02722411 0.02603834
+vt 0.01500014 0.02928488
+vt 0.02722411 0.03577796
+vt 0.01500014 0.03902451
+vt 0.02722411 0.04551759
+vt 0.01500014 0.04876413
+vt 0.02722411 0.05525721
+vt 0.01500014 0.05850375
+vt 0.01500014 0.20784453
+vt 0.02987151 0.21746658
+vt 0.60786235 0.01305218
+vt 0.63231027 0.01629872
+vt 0.63231027 0.00980564
+vt 0.55285448 0.04227105
+vt 0.51007062 0.04551759
+vt 0.57730240 0.04551759
+vt 0.57730240 0.05850375
+vt 0.54674250 0.05525721
+vt 0.64453417 0.07798300
+vt 0.60175037 0.08447608
+vt 0.66287017 0.08447608
+vt 0.66898215 0.07473645
+vt 0.49784666 0.09096916
+vt 0.47339872 0.08772262
+vt 0.54063058 0.08772262
+vt 0.64453417 0.09421571
+vt 0.55896646 0.09746224
+vt 0.62008631 0.10070878
+vt 0.62008631 0.11044830
+vt 0.57730240 0.11369484
+vt 0.63231027 0.11369484
+vt 0.62008631 0.12668100
+vt 0.72398996 0.12343446
+vt 0.76677388 0.09421571
+vt 0.81566972 0.05850375
+vt 0.79733378 0.05525721
+vt 0.68120611 0.07798300
+vt 0.67509413 0.09096916
+vt 0.80955774 0.09096916
+vt 0.76066184 0.10070878
+vt 0.78510982 0.09746224
+vt 0.72398996 0.11369484
+vt 0.71176600 0.10395533
+vt 0.71176600 0.09746224
+vt 0.77899784 0.07473645
+vt 0.80344576 0.07473645
+vt 0.57730240 0.11044830
+vt 0.73010194 0.11044830
+vt 0.76066184 0.10395533
+vt 0.74232590 0.08772262
+vt 0.69954199 0.09096916
+vt 0.70565403 0.08122954
+vt 0.74232590 0.07798300
+vt 0.74232590 0.07148992
+vt 0.55896646 0.10070878
+vt 0.68731809 0.12668100
+vt 0.80955774 0.10720187
+vt 0.76677388 0.11694138
+vt 0.75454986 0.12343446
+vt 0.73010194 0.12668100
+vt 0.74843788 0.11694138
+vt 0.36949506 0.36043185
+vt 0.34504712 0.36043185
+vt 0.56507844 0.37017149
+vt 0.95624518 0.35393876
+vt 0.94402122 0.35393876
+vt 0.14946373 0.12018792
+vt 0.11890383 0.12343446
+vt 0.16356541 0.12948002
+vt 0.24114347 0.12018792
+vt 0.19123834 0.11126792
+vt 0.10667986 0.12668100
+vt 0.08834396 0.12343446
+vt 0.16168770 0.10720187
+vt 0.18814495 0.11330380
+vt 0.21340677 0.09667853
+vt 0.23503147 0.10395533
+vt 0.28392732 0.10395533
+vt 0.99997735 0.10070878
+vt 0.94402122 0.10720187
+vt 0.96846914 0.09421571
+vt 0.99997723 0.09421559
+vt 0.24280822 0.07732890
+vt 0.25947940 0.08772262
+vt 0.38171899 0.08447608
+vt 0.26559138 0.08447608
+vt 0.21272449 0.09712759
+vt 0.19835959 0.08772262
+vt 0.13723977 0.09421571
+vt 0.19224760 0.09096916
+vt 0.99997693 0.08447608
+vt 0.99997711 0.09096916
+vt 0.92568535 0.09421571
+vt 0.92568535 0.08772262
+vt 0.95624518 0.08122954
+vt 0.29615131 0.07148992
+vt 0.27781534 0.07473645
+vt 0.25659174 0.06825771
+vt 0.23971494 0.07936466
+vt 0.10667986 0.08122954
+vt 0.21058355 0.07798300
+vt 0.23190606 0.08450378
+vt 0.16168770 0.07473645
+vt 0.38783097 0.06499683
+vt 0.33893514 0.06175029
+vt 0.33893514 0.06824338
+vt 0.83400571 0.08122954
+vt 0.87067747 0.08447608
+vt 0.90123743 0.07798300
+vt 0.90123743 0.07148992
+vt 0.86456549 0.07148992
+vt 0.99997663 0.06824327
+vt 0.99997622 0.05201056
+vt 0.99997628 0.05850364
+vt 0.97458112 0.05850375
+vt 0.99997640 0.06175018
+vt 0.91346139 0.08122954
+vt 0.93790931 0.06824338
+vt 0.85845351 0.06499683
+vt 0.85234153 0.07148992
+vt 0.82178169 0.07148992
+vt 0.83400571 0.06175029
+vt 0.38783097 0.03902451
+vt 0.33893514 0.04551759
+vt 0.23503147 0.04551759
+vt 0.23503147 0.05201067
+vt 0.07000800 0.05525721
+vt 0.10056788 0.05201067
+vt 0.09445592 0.04551759
+vt 0.15557572 0.04876413
+vt 0.15557572 0.04227105
+vt 0.21669552 0.04551759
+vt 0.21669552 0.03902451
+vt 0.28646320 0.04859871
+vt 0.29427227 0.04345938
+vt 0.27781534 0.03577796
+vt 0.29725933 0.04149356
+vt 0.31114885 0.03235254
+vt 0.33282316 0.03902451
+vt 0.33893514 0.03253142
+vt 0.12501583 0.05850375
+vt 0.13112780 0.06499683
+vt 0.07000800 0.06175029
+vt 0.07611999 0.06824338
+vt 0.23503147 0.06175029
+vt 0.25590944 0.06870667
+vt 0.28117135 0.05208128
+vt 0.32671118 0.06175029
+vt 0.32671118 0.05525721
+vt 0.38783097 0.05850375
+vt 0.40005493 0.04876413
+vt 0.36338308 0.04551759
+vt 0.36338308 0.05201067
+vt 0.32671118 0.05201067
+vt 0.30837527 0.05525721
+vt 0.28656933 0.04852887
+vt 0.24725544 0.05201067
+vt 0.26188365 0.06477493
+vt 0.91346139 0.05850375
+vt 0.92568535 0.06499683
+vt 0.89512545 0.06824338
+vt 0.87067747 0.06499683
+vt 0.88901347 0.06499683
+vt 0.88901347 0.05850375
+vt 0.87067747 0.05850375
+vt 0.68120611 0.05525721
+vt 0.68120611 0.06175029
+vt 0.71176600 0.06175029
+vt 0.71176600 0.05525721
+vt 0.96235716 0.05850375
+vt 0.93790931 0.06175029
+vt 0.93790931 0.05525721
+vt 0.79733378 0.05201067
+vt 0.74232590 0.05850375
+vt 0.76677388 0.04551759
+vt 0.80344576 0.04551759
+vt 0.80955774 0.05201067
+vt 0.81566972 0.05201067
+vt 0.84011757 0.05525721
+vt 0.82789367 0.04876413
+vt 0.86456549 0.04551759
+vt 0.85234153 0.05201067
+vt 0.87067747 0.05201067
+vt 0.65064621 0.04227105
+vt 0.65064621 0.04876413
+vt 0.69343001 0.04876413
+vt 0.68731809 0.04227105
+vt 0.73010194 0.03902451
+vt 0.73621392 0.04876413
+vt 0.75454986 0.04876413
+vt 0.75454986 0.04227105
+vt 0.92568535 0.04227105
+vt 0.91346139 0.04876413
+vt 0.94402122 0.04876413
+vt 0.94402122 0.04227105
+vt 0.99997580 0.03577796
+vt 0.99997610 0.04876413
+vt 0.97458112 0.04551759
+vt 0.97458112 0.03902451
+vt 0.29615131 0.01629872
+vt 0.28392732 0.01954526
+vt 0.32482621 0.02335132
+vt 0.07000800 0.03253142
+vt 0.07000800 0.04551759
+vt 0.08834396 0.04551759
+vt 0.08834396 0.03902451
+vt 0.21058355 0.03902451
+vt 0.21058355 0.03253142
+vt 0.27170336 0.03577796
+vt 0.27170336 0.02928488
+vt 0.30564454 0.03597512
+vt 0.35115913 0.02603834
+vt 0.36949506 0.02279180
+vt 0.33572850 0.01617622
+vt 0.31104273 0.03242250
+vt 0.25336739 0.02279180
+vt 0.25336739 0.02928488
+vt 0.70565403 0.03577796
+vt 0.69343001 0.04227105
+vt 0.71176600 0.04227105
+vt 0.80344576 0.02603834
+vt 0.83400571 0.02603834
+vt 0.83400571 0.01954526
+vt 0.80344576 0.01629872
+vt 0.80955774 0.02928488
+vt 0.77288586 0.03253142
+vt 0.77288586 0.02603834
+vt 0.74843788 0.03577796
+vt 0.77899784 0.04227105
+vt 0.82178169 0.02928488
+vt 0.82789367 0.03902451
+vt 0.85234153 0.03902451
+vt 0.85234153 0.03253142
+vt 0.70565403 0.02279180
+vt 0.66287017 0.02928488
+vt 0.66898215 0.03577796
+vt 0.63231027 0.03577796
+vt 0.65675819 0.02279180
+vt 0.68731809 0.02279180
+vt 0.68731809 0.01305218
+vt 0.71787798 0.01629872
+vt 0.92568535 0.03253142
+vt 0.88901347 0.03577796
+vt 0.88290149 0.02928488
+vt 0.95013320 0.01305218
+vt 0.94402122 0.01954526
+vt 0.96846914 0.02279180
+vt 0.99997550 0.02603823
+vt 0.96235716 0.02603834
+vt 0.95624518 0.03253142
+vt 0.99997580 0.03577786
+vt 0.69954199 0.03253142
+vt 0.73010194 0.02928488
+vt 0.70565403 0.02603834
+vt 0.76066184 0.02603834
+vt 0.74232590 0.02928488
+vt 0.73010194 0.01954526
+vt 0.72398996 0.01629872
+vt 0.76066184 0.00655909
+vt 0.71176600 0.00655909
+vt 0.77899784 0.00655909
+vt 0.75454986 0.01954526
+vt 0.82178169 0.00980564
+vt 0.84011757 0.00655909
+vt 0.84011757 0.01954526
+vt 0.85845351 0.01954526
+vt 0.85234153 0.00980564
+vt 0.88901347 0.00980564
+vt 0.90123743 0.00655909
+vt 0.89512545 0.01629872
+vt 0.95013320 0.00980564
+vt 0.86456549 0.01954526
+vt 0.90123743 0.02279180
+vt 0.34227905 0.01186516
+vt 0.36338308 0.01629872
+vt 0.34951168 0.00710526
+vt 0.33033043 0.01972884
+vt 0.31104273 0.03242250
+vt 0.31114897 0.03235243
+vt 0.31104273 0.03242250
+vt 0.31114885 0.03235254
+vt 0.30575091 0.03590506
+vt 0.30564454 0.03597512
+vt 0.29750139 0.04133428
+vt 0.30564454 0.03597512
+vt 0.29495475 0.04301032
+vt 0.29495475 0.04301032
+vt 0.28117135 0.05208128
+vt 0.28106502 0.05215134
+vt 0.17149898 0.05326053
+vt 0.27267981 0.05766989
+vt 0.26198980 0.06470509
+vt 0.25659174 0.06825771
+vt 0.25590944 0.06870667
+vt 0.25659174 0.06825771
+vt 0.23741047 0.08088131
+vt 0.23201220 0.08443394
+vt 0.23368116 0.08333547
+vt 0.21812266 0.09357496
+vt 0.16896349 0.12592749
+vt 0.18825130 0.11323385
+vt 0.12501583 0.05417507
+vt 0.99997807 0.12668090
+vt 0.25590944 0.06870667
+vt 0.19354291 0.10975128
+vt 0.28117135 0.05208128
+vt 0.99997795 0.12286443
+vt 0.99997526 0.01824658
+f 4/4 2/2 3/3
+f 2/2 4/4 1/1
+f 2/2 5/5 6/6
+f 6/6 7/7 8/8
+f 8/8 2/2 6/6
+f 259/259 273/273 272/272
+f 272/272 257/257 256/256
+f 256/256 258/258 333/333
+f 196/196 333/333 258/258
+f 334/334 257/257 272/272
+f 257/257 334/334 194/194
+f 335/335 336/336 271/271
+f 337/337 195/195 196/196
+f 210/210 338/338 267/267
+f 267/267 339/339 340/340
+f 192/192 341/341 266/266
+f 189/189 264/264 263/263
+f 185/185 262/262 261/261
+f 261/261 260/260 183/183
+f 261/261 184/184 185/185
+f 185/185 186/186 187/187
+f 263/263 188/188 189/189
+f 192/192 190/190 191/191
+f 193/193 342/342 210/210
+f 180/180 209/209 208/208
+f 160/160 207/207 206/206
+f 71/71 80/80 81/81
+f 134/134 80/80 141/141
+f 88/88 118/118 120/120
+f 77/77 82/82 94/94
+f 106/106 108/108 107/107
+f 96/96 99/99 105/105
+f 97/97 96/96 105/105
+f 89/89 117/117 104/104
+f 117/117 89/89 116/116
+f 120/120 116/116 88/88
+f 88/88 87/87 103/103
+f 103/103 85/85 84/84
+f 118/118 103/103 79/79
+f 161/161 205/205 204/204
+f 212/212 211/211 343/343
+f 344/344 203/203 345/345
+f 182/182 346/346 214/214
+f 347/347 348/348 152/152
+f 204/204 162/162 161/161
+f 142/142 152/152 153/153
+f 153/153 349/349 202/202
+f 350/350 351/351 154/154
+f 159/159 201/201 200/200
+f 63/63 200/200 199/199
+f 155/155 352/352 140/140
+f 152/152 142/142 141/141
+f 353/353 354/354 158/158
+f 145/145 157/157 156/156
+f 145/145 129/129 124/124
+f 146/146 143/143 144/144
+f 355/355 143/143 132/132
+f 356/356 126/126 131/131
+f 133/133 132/132 143/143
+f 145/145 124/124 123/123
+f 127/127 131/131 357/357
+f 126/126 66/66 119/119
+f 66/66 125/125 128/128
+f 356/356 130/130 123/123
+f 128/128 125/125 124/124
+f 65/65 128/128 129/129
+f 200/200 64/64 129/129
+f 199/199 198/198 197/197
+f 197/197 358/358 183/183
+f 59/59 260/260 259/259
+f 359/359 13/13 122/122
+f 15/15 13/13 6/6
+f 13/13 14/14 6/6
+f 17/17 15/15 16/16
+f 18/18 15/15 17/17
+f 22/22 20/20 21/21
+f 25/25 23/23 24/24
+f 25/25 26/26 27/27
+f 27/27 28/28 29/29
+f 93/93 31/31 32/32
+f 75/75 33/33 34/34
+f 34/34 76/76 75/75
+f 34/34 35/35 36/36
+f 39/39 37/37 38/38
+f 36/36 39/39 40/40
+f 72/72 40/40 41/41
+f 42/42 43/43 44/44
+f 68/68 67/67 44/44
+f 68/68 45/45 46/46
+f 69/69 47/47 48/48
+f 49/49 50/50 51/51
+f 259/259 53/53 55/55
+f 53/53 54/54 55/55
+f 55/55 56/56 57/57
+f 57/57 58/58 59/59
+f 59/59 60/60 61/61
+f 61/61 62/62 63/63
+f 129/129 64/64 65/65
+f 52/52 272/272 256/256
+f 52/52 333/333 270/270
+f 257/257 194/194 258/258
+f 335/335 271/271 337/337
+f 210/210 267/267 340/340
+f 184/184 261/261 183/183
+f 265/265 190/190 192/192
+f 141/141 80/80 160/160
+f 79/79 83/83 81/81
+f 108/108 106/106 109/109
+f 99/99 96/96 106/106
+f 104/104 117/117 105/105
+f 88/88 116/116 89/89
+f 118/118 88/88 103/103
+f 103/103 84/84 83/83
+f 212/212 343/343 344/344
+f 213/213 182/182 214/214
+f 350/350 154/154 360/360
+f 200/200 129/129 156/156
+f 155/155 140/140 139/139
+f 140/140 353/353 158/158
+f 129/129 145/145 156/156
+f 145/145 146/146 144/144
+f 355/355 132/132 134/134
+f 131/131 126/126 357/357
+f 130/130 143/143 145/145
+f 145/145 123/123 130/130
+f 131/131 127/127 361/361
+f 130/130 356/356 131/131
+f 199/199 197/197 183/183
+f 61/61 183/183 260/260
+f 359/359 122/122 121/121
+f 18/18 13/13 15/15
+f 116/116 18/18 115/115
+f 20/20 22/22 19/19
+f 23/23 25/25 22/22
+f 27/27 29/29 30/30
+f 33/33 75/75 78/78
+f 37/37 39/39 36/36
+f 70/70 44/44 67/67
+f 45/45 68/68 44/44
+f 269/269 51/51 270/270
+f 259/259 55/55 57/57
+f 128/128 65/65 66/66
+f 335/335 258/258 194/194
+f 258/258 335/335 337/337
+f 187/187 262/262 185/185
+f 207/207 160/160 80/80
+f 90/90 106/106 96/96
+f 114/114 105/105 117/117
+f 122/122 116/116 120/120
+f 79/79 103/103 83/83
+f 362/362 212/212 344/344
+f 182/182 213/213 181/181
+f 155/155 201/201 159/159
+f 200/200 156/156 159/159
+f 201/201 155/155 139/139
+f 355/355 157/157 144/144
+f 157/157 145/145 144/144
+f 140/140 355/355 134/134
+f 118/118 126/126 119/119
+f 361/361 143/143 130/130
+f 361/361 127/127 126/126
+f 63/63 199/199 183/183
+f 9/9 359/359 121/121
+f 13/13 18/18 122/122
+f 97/97 19/19 22/22
+f 90/90 27/27 30/30
+f 33/33 78/78 32/32
+f 73/73 36/36 40/40
+f 69/69 68/68 46/46
+f 53/53 259/259 272/272
+f 200/200 63/63 64/64
+f 196/196 258/258 337/337
+f 262/262 187/187 263/263
+f 207/207 80/80 71/71
+f 118/118 79/79 80/80
+f 106/106 90/90 109/109
+f 105/105 114/114 97/97
+f 362/362 344/344 345/345
+f 345/345 181/181 213/213
+f 201/201 139/139 360/360
+f 157/157 355/355 158/158
+f 126/126 118/118 134/134
+f 143/143 361/361 133/133
+f 27/27 90/90 25/25
+f 93/93 78/78 77/77
+f 36/36 73/73 34/34
+f 47/47 69/69 46/46
+f 63/63 183/183 61/61
+f 333/333 196/196 268/268
+f 188/188 263/263 187/187
+f 179/179 207/207 71/71
+f 34/34 83/83 76/76
+f 30/30 109/109 90/90
+f 152/152 362/362 345/345
+f 345/345 213/213 347/347
+f 360/360 139/139 350/350
+f 350/350 139/139 202/202
+f 158/158 355/355 140/140
+f 126/126 133/133 361/361
+f 25/25 97/97 22/22
+f 34/34 73/73 74/74
+f 49/49 69/69 48/48
+f 260/260 59/59 61/61
+f 179/179 268/268 196/196
+f 264/264 189/189 265/265
+f 67/67 71/71 70/70
+f 25/25 90/90 97/97
+f 152/152 345/345 347/347
+f 142/142 202/202 139/139
+f 141/141 140/140 134/134
+f 133/133 126/126 134/134
+f 19/19 97/97 114/114
+f 49/49 67/67 69/69
+f 268/268 179/179 269/269
+f 190/190 265/265 189/189
+f 116/116 122/122 18/18
+f 362/362 152/152 204/204
+f 202/202 142/142 153/153
+f 80/80 134/134 118/118
+f 125/125 126/126 356/356
+f 71/71 67/67 49/49
+f 266/266 265/265 192/192
+f 115/115 18/18 114/114
+f 162/162 204/204 152/152
+f 152/152 141/141 160/160
+f 66/66 126/126 125/125
+f 341/341 192/192 340/340
+f 205/205 161/161 206/206
+f 340/340 192/192 193/193
+f 206/206 161/161 160/160
+f 210/210 340/340 193/193
+f 59/59 259/259 57/57
+f 338/338 210/210 180/180
+f 53/53 272/272 52/52
+f 209/209 180/180 210/210
+f 333/333 52/52 256/256
+f 180/180 208/208 179/179
+f 52/52 270/270 51/51
+f 207/207 179/179 208/208
+f 51/51 269/269 49/49
+f 49/49 179/179 71/71
+f 179/179 49/49 269/269
+f 44/44 70/70 42/42
+f 72/72 42/42 70/70
+f 42/42 72/72 41/41
+f 40/40 72/72 74/74
+f 19/19 114/114 18/18
+f 74/74 72/72 71/71
+f 109/109 30/30 110/110
+f 81/81 74/74 71/71
+f 31/31 110/110 30/30
+f 74/74 81/81 34/34
+f 110/110 31/31 93/93
+f 83/83 34/34 81/81
+f 78/78 93/93 32/32
+f 82/82 76/76 83/83
+f 93/93 77/77 94/94
+f 76/76 82/82 77/77
+f 10/10 11/11 12/12
+f 12/12 363/363 10/10
+f 25/25 90/90 95/95
+f 95/95 26/26 25/25
+f 82/82 83/83 84/84
+f 85/85 86/86 87/87
+f 87/87 88/88 89/89
+f 98/98 96/96 99/99
+f 92/92 27/27 91/91
+f 27/27 92/92 30/30
+f 100/100 93/93 94/94
+f 87/87 82/82 84/84
+f 84/84 85/85 87/87
+f 99/99 89/89 98/98
+f 27/27 30/30 100/100
+f 82/82 87/87 94/94
+f 89/89 99/99 87/87
+f 93/93 100/100 30/30
+f 94/94 87/87 99/99
+f 99/99 100/100 94/94
+f 30/30 102/102 91/91
+f 91/91 92/92 30/30
+f 102/102 30/30 101/101
+f 93/93 101/101 30/30
+f 93/93 100/100 101/101
+f 82/82 111/111 84/84
+f 85/85 103/103 87/87
+f 87/87 88/88 112/112
+f 25/25 113/113 24/24
+f 25/25 93/93 94/94
+f 94/94 112/112 113/113
+f 93/93 25/25 30/30
+f 25/25 27/27 30/30
+f 112/112 94/94 87/87
+f 25/25 94/94 113/113
+f 25/25 114/114 23/23
+f 114/114 93/93 94/94
+f 94/94 112/112 114/114
+f 30/30 114/114 25/25
+f 93/93 114/114 30/30
+f 135/135 138/138 137/137
+f 137/137 136/136 135/135
+f 149/149 151/151 150/150
+f 151/151 149/149 148/148
+f 151/151 148/148 147/147
+f 167/167 164/164 165/165
+f 165/165 166/166 167/167
+f 164/164 167/167 163/163
+f 170/170 171/171 172/172
+f 172/172 168/168 169/169
+f 169/169 170/170 172/172
+f 168/168 174/174 173/173
+f 176/176 178/178 177/177
+f 178/178 176/176 175/175
+f 215/215 217/217 216/216
+f 218/218 219/219 220/220
+f 220/220 221/221 218/218
+f 222/222 223/223 224/224
+f 224/224 225/225 222/222
+f 226/226 228/228 227/227
+f 229/229 233/233 232/232
+f 229/229 231/231 230/230
+f 231/231 229/229 232/232
+f 234/234 235/235 236/236
+f 237/237 238/238 239/239
+f 243/243 241/241 242/242
+f 241/241 243/243 240/240
+f 247/247 245/245 246/246
+f 245/245 247/247 244/244
+f 248/248 249/249 250/250
+f 250/250 251/251 248/248
+f 252/252 255/255 254/254
+f 254/254 253/253 252/252
+f 274/274 275/275 276/276
+f 277/277 278/278 279/279
+f 279/279 280/280 277/277
+f 281/281 283/283 282/282
+f 284/284 285/285 282/282
+f 289/289 287/287 288/288
+f 287/287 289/289 286/286
+f 290/290 297/297 296/296
+f 291/291 294/294 293/293
+f 293/293 292/292 291/291
+f 290/290 296/296 295/295
+f 294/294 291/291 295/295
+f 291/291 290/290 295/295
+f 298/298 300/300 299/299
+f 301/301 302/302 303/303
+f 307/307 305/305 306/306
+f 307/307 364/364 304/304
+f 305/305 307/307 304/304
+f 308/308 309/309 310/310
+f 311/311 313/313 312/312
+f 314/314 315/315 316/316
+f 317/317 318/318 319/319
+f 320/320 319/319 321/321
+f 321/321 322/322 323/323
+f 323/323 324/324 320/320
+f 320/320 321/321 323/323
+f 325/325 324/324 326/326
+f 326/326 327/327 325/325
+f 328/328 329/329 326/326
+f 330/330 331/331 332/332
+
diff --git a/ai_002_003/background_mesh/14.obj b/ai_002_003/background_mesh/14.obj
new file mode 100644
index 0000000000000000000000000000000000000000..5bec82c630643740b60a931c4614cf69f87e2bfd
--- /dev/null
+++ b/ai_002_003/background_mesh/14.obj
@@ -0,0 +1,871 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -4.45426989 6.69183254 -0.39621735
+v -4.42608643 6.69185591 -3.77543283
+v -4.42619228 6.57895470 -3.76129365
+v -4.42594719 6.49411774 -3.78957129
+v -4.42629004 6.39514160 -3.74715447
+v -4.42593193 6.35272312 -3.78957129
+v -4.42592430 6.28202629 -3.78957105
+v -4.42639446 6.26788616 -3.73301530
+v -4.42614603 6.15477085 -3.76129293
+v -4.42685080 6.12649155 -3.67645955
+v -4.42660999 6.08407307 -3.70473742
+v -4.42671633 5.97095776 -3.69059801
+v -4.42624092 5.94267845 -3.74715424
+v -4.42623663 5.90025997 -3.74715376
+v -4.42670870 5.90025997 -3.69059777
+v -4.42682028 5.84370232 -3.67645931
+v -4.42658424 5.84370232 -3.70473719
+v -4.42657804 5.78714466 -3.70473719
+v -4.42692900 5.75886536 -3.66231990
+v -4.42644024 5.60333157 -3.71887565
+v -4.42690754 5.56091309 -3.66231990
+v -4.42713451 5.47607613 -3.63404179
+v -4.42748833 5.47607613 -3.59162474
+v -4.42689657 5.46193695 -3.66231966
+v -4.42689085 5.40537882 -3.66231966
+v -4.42736244 5.40537882 -3.60576391
+v -4.42746353 5.25520802 -3.59162521
+v -4.42756939 5.13672924 -3.57748556
+v -4.42709589 5.12258959 -3.63404155
+v -4.42697382 5.08017111 -3.64818001
+v -4.42614651 5.06603146 -3.74715328
+v -4.42614174 5.02361298 -3.74715328
+v -4.42778969 4.99533463 -3.54920745
+v -4.42754173 4.88221836 -3.57748532
+v -4.42659855 4.88221836 -3.69059706
+v -4.42659235 4.82566071 -3.69059706
+v -4.42670393 4.76910305 -3.67645836
+v -4.42823696 4.76910305 -3.49265146
+v -4.42811012 4.68426609 -3.50679016
+v -4.42751741 4.65598726 -3.57748508
+v -4.42727041 4.55701065 -3.60576272
+v -4.42620945 4.55701065 -3.73301387
+v -4.42597055 4.52873230 -3.76129150
+v -4.42584324 4.44389534 -3.77543020
+v -4.42607594 4.41561604 -3.74715281
+v -4.42571974 4.38733721 -3.78956938
+v -4.42571020 4.30250072 -3.78956914
+v -4.42535496 4.28836107 -3.83198643
+v -4.42522430 4.17524529 -3.84612513
+v -4.42310190 4.17524529 -4.10062695
+v -4.42250443 4.10454798 -4.17132187
+v -4.42250013 4.06212950 -4.17132187
+v -4.42308998 4.06212950 -4.10062695
+v -4.42308664 4.03385067 -4.10062647
+v -4.42190456 4.00557137 -4.24201632
+v -4.42069912 3.76520061 -4.38340616
+v -4.42010927 3.76520061 -4.45410109
+v -4.41994715 3.35515642 -4.46823931
+v -4.42005920 3.29859829 -4.45410061
+v -4.42053080 3.29859829 -4.39754438
+v -4.42051220 3.12892485 -4.39754438
+v -4.42004061 3.12892485 -4.45410013
+v -4.41967440 3.01580906 -4.49651718
+v -4.41966677 2.94511175 -4.49651670
+v -4.42001915 2.93097210 -4.45409966
+v -4.41966391 2.91683269 -4.49651670
+v -4.41965485 2.83199596 -4.49651670
+v -4.42000532 2.80371714 -4.45410013
+v -4.41985273 2.47850919 -4.46823883
+v -4.41996574 2.43609095 -4.45409918
+v -4.42031956 2.43609095 -4.41168261
+v -4.42044210 2.47850919 -4.39754391
+v -4.42041445 2.22399879 -4.39754343
+v -4.42030430 2.29713154 -4.41168261
+v -4.41499949 2.28055644 -5.04754400
+v -4.41444588 -2.85207081 -5.04740238
+v -4.41631079 -2.83106089 -4.82395840
+v -4.41663122 -2.87943459 -4.78491545
+v -4.41703510 -2.85206985 -4.73687458
+v -4.45323753 -2.85206985 -0.39620873
+v -4.41707945 5.18871212 -4.83585405
+v -4.42061758 5.18872023 -4.41168499
+v -4.42049408 5.13672924 -4.42582417
+v -4.42002249 5.13672924 -4.48238039
+v -4.42049217 5.12258959 -4.42582417
+v -4.42048788 5.08017111 -4.42582369
+v -4.41529560 5.02361202 -5.04761982
+v -4.41559124 6.69186497 -5.03380299
+v -4.41830349 6.69186258 -4.70860624
+v -4.41858482 6.64965248 -4.67427444
+v -4.41857147 6.52239847 -4.67427111
+v -4.41804934 6.52239704 -4.73688316
+v -4.41715956 5.92853928 -4.83585548
+v -4.41669798 5.92853880 -4.89122534
+v -4.41664457 5.43365812 -4.89121914
+v -4.41616297 5.43365765 -4.94896650
+v -4.41590738 5.25520706 -4.97724533
+v -4.41590023 5.18870926 -4.97724438
+v -4.42558432 6.40928078 -3.83198833
+v -4.42581987 6.40928078 -3.80371046
+v -4.42581558 6.36686230 -3.80371046
+v -4.42546177 6.36686230 -3.84612727
+v -4.42646790 5.85784197 -3.71887589
+v -4.42611551 5.87198162 -3.76129270
+v -4.42610979 5.81542349 -3.76129270
+v -4.42646360 5.81542349 -3.71887589
+v -4.42645407 5.73058701 -3.71887565
+v -4.42610025 5.73058701 -3.76129270
+v -4.42609596 5.68816853 -3.76129270
+v -4.42644978 5.68816853 -3.71887565
+v -4.42486954 5.25520802 -3.90268326
+v -4.42451572 5.25520802 -3.94509935
+v -4.42439079 5.18872881 -3.95923829
+v -4.42486238 5.18872976 -3.90268230
+v -4.41526508 4.74082327 -5.04761219
+v -4.41528988 4.96705484 -5.04761839
+v -4.41906023 4.96705532 -4.59549141
+v -4.41905403 4.91049767 -4.59549141
+v -4.42023325 4.91049767 -4.45410204
+v -4.42022133 4.79738188 -4.45410204
+v -4.41703749 4.79738188 -4.83585453
+v -4.41701889 4.62770844 -4.83585405
+v -4.41525126 4.61356783 -5.04760838
+v -4.41520262 4.16110563 -5.04759598
+v -4.41520548 4.18938398 -5.04759693
+v -4.41651011 4.18938494 -4.89120340
+v -4.41650534 4.14696693 -4.89120293
+v -4.42191362 4.09040833 -4.24201632
+v -4.42214918 4.09040833 -4.21373844
+v -4.42215538 4.14696646 -4.21373844
+v -4.42156601 4.14696693 -4.28443289
+v -4.42155981 4.09040833 -4.28443336
+v -4.41518593 4.00557089 -5.04759169
+v -4.41519213 4.06212902 -5.04759312
+v -4.41577864 4.06212950 -4.97724342
+v -4.41577244 4.00557137 -4.97724295
+v -4.42025661 4.03385067 -4.43996191
+v -4.42037010 3.99143219 -4.42582273
+v -4.42001629 3.99143219 -4.46823978
+v -4.42002058 4.03385067 -4.46823978
+v -4.42549133 3.36929560 -3.80370760
+v -4.42573023 3.39757466 -3.77542949
+v -4.42526150 3.42585349 -3.83198571
+v -4.42526960 3.49655104 -3.83198571
+v -4.42562342 3.49655104 -3.78956842
+v -4.42574883 3.56724834 -3.77542973
+v -4.42598438 3.56724834 -3.74715209
+v -4.42588949 3.77934027 -3.76129079
+v -4.42578220 3.87831640 -3.77542973
+v -4.42495823 3.89245605 -3.87440300
+v -4.42483234 3.82175875 -3.88854170
+v -4.42329645 3.79347968 -4.07234859
+v -4.42328405 3.68036389 -4.07234859
+v -4.42304850 3.68036389 -4.10062695
+v -4.42324734 3.34101677 -4.07234812
+v -4.42348337 3.34101677 -4.04407024
+v -4.42347908 3.29859829 -4.04407024
+v -4.42442226 3.29859829 -3.93095827
+v -4.42442513 3.32687712 -3.93095827
+v -4.42513275 3.32687712 -3.84612465
+v -4.42513752 3.36929560 -3.84612441
+v -4.42546082 3.08650637 -3.80370736
+v -4.42523289 3.15720367 -3.83198547
+v -4.42417145 3.15720367 -3.95923615
+v -4.42416525 3.10064578 -3.95923591
+v -4.42357540 3.10064578 -4.02993059
+v -4.42356920 3.04408789 -4.02993059
+v -4.42321539 3.04408789 -4.07234812
+v -4.42320442 2.94511175 -4.07234764
+v -4.42296600 2.91683269 -4.10062551
+v -4.42305756 2.67646170 -4.08648682
+v -4.42376518 2.67646170 -4.00165272
+v -4.42374420 2.47850919 -4.00165272
+v -4.42445183 2.47850919 -3.91681862
+v -4.42398310 2.50678825 -3.97337461
+v -4.42387533 2.60576439 -3.98751354
+v -4.42434692 2.60576439 -3.93095779
+v -4.42435312 2.66232228 -3.93095779
+v -4.42517900 2.66232228 -3.83198500
+v -4.42530918 2.77543807 -3.81784606
+v -4.42566299 2.77543807 -3.77542901
+v -4.42580652 3.01580906 -3.76129031
+v -4.42545271 3.01580906 -3.80370736
+v -4.42366552 1.75537014 -4.00165224
+v -4.42404079 1.95097196 -3.95923495
+v -4.42545557 1.95097220 -3.78956771
+v -4.42546225 2.01663160 -3.78956771
+v -4.42569828 2.01663160 -3.76128936
+v -4.42572117 2.22399879 -3.76128960
+v -4.42513180 2.22399879 -3.83198452
+v -4.42513895 2.29713225 -3.83198500
+v -4.42526484 2.36539364 -3.81784558
+v -4.42573786 2.37953305 -3.76128960
+v -4.42514992 2.39367247 -3.83198476
+v -4.42515326 2.42195129 -3.83198476
+v -4.42362022 2.42195129 -4.01579094
+v -4.42362452 2.46436977 -4.01579094
+v -4.42279768 2.45023036 -4.11476374
+v -4.42289829 2.29713202 -4.10062599
+v -4.42254496 2.29713178 -4.14304304
+v -4.42360592 2.29713202 -4.01579189
+v -4.42370415 2.11088324 -4.00165224
+v -4.42299223 2.06846476 -4.08648539
+v -4.42298603 2.01663136 -4.08648682
+v -4.42227840 2.01663113 -4.17132092
+v -4.42229033 2.12502265 -4.17132044
+v -4.42204237 2.01663113 -4.19959879
+v -4.42157078 2.01663113 -4.25615501
+v -4.42156410 1.95097172 -4.25615501
+v -4.42144632 1.95097172 -4.27029467
+v -4.42143774 1.87051213 -4.27029228
+v -4.42095995 1.81395435 -4.32684803
+v -4.42095327 1.75536990 -4.32684803
+v -4.42036343 1.75536978 -4.39754295
+v -4.42011786 1.65842021 -4.42582130
+v -4.42017269 1.07870197 -4.41168165
+v -4.42053270 1.13525987 -4.36926460
+v -4.42053938 1.19643879 -4.36926460
+v -4.42124653 1.19643819 -4.28443050
+v -4.42137337 1.27665448 -4.27029181
+v -4.42172718 1.27665448 -4.22787476
+v -4.42222166 1.48874664 -4.17131901
+v -4.42282677 1.63014126 -4.10062504
+v -4.42306232 1.63014126 -4.07234669
+v -4.42306852 1.68669915 -4.07234669
+v -4.42330456 1.68669915 -4.04406881
+v -4.42331171 1.75537014 -4.04406929
+v -4.42062092 1.95097160 -4.36926508
+v -4.42061520 1.89879107 -4.36926508
+v -4.42025852 1.87051213 -4.41168213
+v -4.42014933 1.95097160 -4.42582130
+v -4.44222164 -0.03831601 -1.75355279
+v -4.44293070 -0.02417648 -1.66871893
+v -4.44307280 0.20205522 -1.65458024
+v -4.44343281 0.25861287 -1.61216319
+v -4.44425821 0.25861287 -1.51319051
+v -4.44460154 0.15963674 -1.47077358
+v -4.44459200 0.07479978 -1.47077346
+v -4.44364738 0.06066036 -1.58388519
+v -4.44470739 0.04652095 -1.45663440
+v -4.44468880 -0.12315273 -1.45663416
+v -4.44516039 -0.12315285 -1.40007842
+v -4.44516516 -0.08073437 -1.40007854
+v -4.44539165 -0.16557097 -1.37180042
+v -4.44562769 -0.16557097 -1.34352243
+v -4.44564438 -0.01003695 -1.34352255
+v -4.44610977 -0.06659484 -1.28696668
+v -4.44588375 0.01824212 -1.31524456
+v -4.44624329 0.07479966 -1.27282798
+v -4.44588947 0.07479978 -1.31524467
+v -4.44589901 0.15963674 -1.31524467
+v -4.44637632 0.21619439 -1.25868893
+v -4.44657373 -0.13729215 -1.23041058
+v -4.44680357 -0.19385004 -1.20213258
+v -4.44727373 -0.20798957 -1.14557695
+v -4.44916058 -0.20798945 -0.91935325
+v -4.44904613 -0.17971063 -0.93349218
+v -4.44928312 -0.16557097 -0.90521419
+v -4.44906569 0.00410247 -0.93349236
+v -4.44882965 0.00410247 -0.96177036
+v -4.44883919 0.08893943 -0.96177042
+v -4.44919300 0.08893943 -0.91935337
+v -4.44909048 0.23033404 -0.93349254
+v -4.44873953 0.25861287 -0.97590929
+v -4.44874573 0.31566265 -0.97590965
+v -4.44803810 0.31566256 -1.06074369
+v -4.44933510 0.31566271 -0.90521473
+v -4.44934130 0.37172866 -0.90521467
+v -4.44898796 0.37172866 -0.94763160
+v -4.44911194 0.42828655 -0.93349260
+v -4.44887590 0.42828655 -0.96177083
+v -4.44911623 0.47070479 -0.93349278
+v -4.43673754 0.49898386 -2.41808534
+v -4.43662548 0.55554175 -2.43222427
+v -4.43434858 0.58382034 -2.70557475
+v -4.43425083 -0.32110524 -2.70556259
+v -4.43424797 -0.34938455 -2.70556211
+v -4.43413925 -1.35328674 -2.70554876
+v -4.43429327 -1.37815487 -2.68672466
+v -4.43735886 -1.37815142 -2.31911039
+v -4.43749523 -1.21189189 -2.30497193
+v -4.43682337 -0.88668442 -2.38980603
+v -4.43708658 -0.63217330 -2.36152840
+v -4.41506720 -2.51272297 -4.97723722
+v -4.41448212 -2.51272392 -5.04741192
+v -4.41466236 -2.58215857 -5.02484941
+v -4.41516161 -2.65756297 -4.96399021
+v -4.41495705 -2.62661910 -4.98896503
+v -4.41446877 -2.63997841 -5.04740810
+v -4.41446400 -2.68239737 -5.04740715
+v -4.41552591 -2.71254253 -4.91961527
+v -4.41504431 -2.72481441 -4.97723675
+v -4.41503525 -2.80965137 -4.97723722
+v -4.41527128 -2.80965137 -4.94895935
+vt 0.00000000 0.99999660
+vt 0.72649366 0.99999911
+vt 0.72345388 0.98820323
+vt 0.72953331 0.97933954
+vt 0.72041422 0.96899861
+vt 0.72953331 0.96456677
+vt 0.72953326 0.95718044
+vt 0.71737444 0.95570314
+vt 0.72345388 0.94388491
+vt 0.70521563 0.94093037
+vt 0.71129507 0.93649852
+vt 0.70825523 0.92468029
+vt 0.72041422 0.92172575
+vt 0.72041416 0.91729391
+vt 0.70825523 0.91729391
+vt 0.70521563 0.91138482
+vt 0.71129507 0.91138482
+vt 0.71129507 0.90547574
+vt 0.70217586 0.90252113
+vt 0.71433473 0.88627112
+vt 0.70217586 0.88183928
+vt 0.69609642 0.87297559
+vt 0.68697721 0.87297559
+vt 0.70217586 0.87149835
+vt 0.70217586 0.86558926
+vt 0.69001698 0.86558926
+vt 0.68697739 0.84989959
+vt 0.68393749 0.83752102
+vt 0.69609642 0.83604372
+vt 0.69913602 0.83161187
+vt 0.72041422 0.83013451
+vt 0.72041422 0.82570267
+vt 0.67785805 0.82274818
+vt 0.68393749 0.81092995
+vt 0.70825523 0.81092989
+vt 0.70825529 0.80502081
+vt 0.70521563 0.79911172
+vt 0.66569918 0.79911172
+vt 0.66873884 0.79024804
+vt 0.68393749 0.78729355
+vt 0.69001687 0.77695251
+vt 0.71737450 0.77695251
+vt 0.72345388 0.77399802
+vt 0.72649354 0.76513433
+vt 0.72041422 0.76217973
+vt 0.72953331 0.75922525
+vt 0.72953326 0.75036156
+vt 0.73865253 0.74888432
+vt 0.74169225 0.73706603
+vt 0.79640728 0.73706603
+vt 0.81160593 0.72967970
+vt 0.81160593 0.72524786
+vt 0.79640728 0.72524786
+vt 0.79640722 0.72229326
+vt 0.82680440 0.71933866
+vt 0.85720176 0.69422495
+vt 0.87240034 0.69422495
+vt 0.87544000 0.65138400
+vt 0.87240034 0.64547485
+vt 0.86024141 0.64547485
+vt 0.86024141 0.62774754
+vt 0.87240022 0.62774754
+vt 0.88151950 0.61592931
+vt 0.88151944 0.60854292
+vt 0.87240022 0.60706562
+vt 0.88151944 0.60558838
+vt 0.88151944 0.59672469
+vt 0.87240034 0.59377015
+vt 0.87544012 0.55979276
+vt 0.87240022 0.55536097
+vt 0.86328107 0.55536097
+vt 0.86024141 0.55979276
+vt 0.86024141 0.53320175
+vt 0.86328113 0.54084253
+vt 0.99998420 0.53911084
+vt 0.99995482 0.00285894
+vt 0.95191687 0.00505409
+vt 0.94352305 0.00000000
+vt 0.93319476 0.00285899
+vt 0.00000000 0.00285904
+vt 0.95447266 0.84295207
+vt 0.86328107 0.84295297
+vt 0.86632079 0.83752096
+vt 0.87847978 0.83752096
+vt 0.86632079 0.83604372
+vt 0.86632073 0.83161187
+vt 1.00000000 0.82570255
+vt 0.99702924 1.00000000
+vt 0.92711550 0.99999982
+vt 0.91973466 0.99558967
+vt 0.91973388 0.98229438
+vt 0.93319476 0.98229414
+vt 0.95447290 0.92024851
+vt 0.96637678 0.92024851
+vt 0.96637553 0.86854380
+vt 0.97879058 0.86854374
+vt 0.98487020 0.84989941
+vt 0.98487008 0.84295177
+vt 0.73865253 0.97047585
+vt 0.73257309 0.97047585
+vt 0.73257309 0.96604407
+vt 0.74169225 0.96604413
+vt 0.71433473 0.91286212
+vt 0.72345388 0.91433936
+vt 0.72345388 0.90843028
+vt 0.71433473 0.90843028
+vt 0.71433467 0.89956659
+vt 0.72345388 0.89956659
+vt 0.72345388 0.89513481
+vt 0.71433467 0.89513481
+vt 0.75385135 0.84989947
+vt 0.76297033 0.84989947
+vt 0.76601005 0.84295386
+vt 0.75385118 0.84295398
+vt 0.99999845 0.79615712
+vt 0.99999970 0.81979358
+vt 0.90279746 0.81979358
+vt 0.90279746 0.81388450
+vt 0.87240034 0.81388450
+vt 0.87240034 0.80206633
+vt 0.95447290 0.80206633
+vt 0.95447278 0.78433895
+vt 0.99999762 0.78286159
+vt 0.99999499 0.73558879
+vt 0.99999517 0.73854327
+vt 0.96637237 0.73854339
+vt 0.96637225 0.73411155
+vt 0.82680440 0.72820234
+vt 0.82072502 0.72820234
+vt 0.82072502 0.73411155
+vt 0.83592349 0.73411155
+vt 0.83592361 0.72820234
+vt 0.99999416 0.71933866
+vt 0.99999446 0.72524774
+vt 0.98487008 0.72524786
+vt 0.98486996 0.71933866
+vt 0.86936057 0.72229332
+vt 0.86632073 0.71786147
+vt 0.87544000 0.71786141
+vt 0.87543988 0.72229326
+vt 0.73257309 0.65286124
+vt 0.72649354 0.65581578
+vt 0.73865259 0.65877032
+vt 0.73865253 0.66615677
+vt 0.72953326 0.66615677
+vt 0.72649360 0.67354316
+vt 0.72041422 0.67354310
+vt 0.72345388 0.69570231
+vt 0.72649354 0.70604324
+vt 0.74777168 0.70752048
+vt 0.75081134 0.70013416
+vt 0.79032779 0.69717956
+vt 0.79032779 0.68536133
+vt 0.79640734 0.68536133
+vt 0.79032779 0.64990664
+vt 0.78424835 0.64990664
+vt 0.78424835 0.64547485
+vt 0.75993061 0.64547485
+vt 0.75993055 0.64842939
+vt 0.74169225 0.64842939
+vt 0.74169225 0.65286124
+vt 0.73257309 0.62331569
+vt 0.73865259 0.63070208
+vt 0.76600999 0.63070208
+vt 0.76600993 0.62479293
+vt 0.78120852 0.62479293
+vt 0.78120857 0.61888385
+vt 0.79032785 0.61888385
+vt 0.79032773 0.60854292
+vt 0.79640722 0.60558838
+vt 0.79336756 0.58047467
+vt 0.77512920 0.58047467
+vt 0.77512926 0.55979276
+vt 0.75689083 0.55979276
+vt 0.76904976 0.56274730
+vt 0.77208942 0.57308829
+vt 0.75993061 0.57308823
+vt 0.75993061 0.57899737
+vt 0.73865253 0.57899737
+vt 0.73561281 0.59081560
+vt 0.72649360 0.59081560
+vt 0.72345388 0.61592931
+vt 0.73257309 0.61592931
+vt 0.77512932 0.48423985
+vt 0.76600999 0.50467616
+vt 0.72953343 0.50467622
+vt 0.72953343 0.51153624
+vt 0.72345388 0.51153624
+vt 0.72345388 0.53320175
+vt 0.73865253 0.53320175
+vt 0.73865259 0.54084265
+vt 0.73561281 0.54797453
+vt 0.72345388 0.54945183
+vt 0.73865253 0.55092913
+vt 0.73865253 0.55388361
+vt 0.77816880 0.55388361
+vt 0.77816880 0.55831546
+vt 0.79944688 0.55683821
+vt 0.79640740 0.54084265
+vt 0.80552661 0.54084259
+vt 0.77816904 0.54084265
+vt 0.77512920 0.52138358
+vt 0.79336739 0.51695174
+vt 0.79336768 0.51153618
+vt 0.81160611 0.51153612
+vt 0.81160599 0.52286083
+vt 0.81768554 0.51153612
+vt 0.82984447 0.51153612
+vt 0.82984447 0.50467616
+vt 0.83288437 0.50467616
+vt 0.83288383 0.49626982
+vt 0.84504271 0.49036068
+vt 0.84504271 0.48423985
+vt 0.86024141 0.48423985
+vt 0.86632091 0.47411066
+vt 0.86328113 0.41354224
+vt 0.85416198 0.41945136
+vt 0.85416192 0.42584327
+vt 0.83592355 0.42584321
+vt 0.83288389 0.43422413
+vt 0.82376468 0.43422413
+vt 0.81160581 0.45638329
+vt 0.79640734 0.47115606
+vt 0.79032779 0.47115606
+vt 0.79032779 0.47706521
+vt 0.78424835 0.47706521
+vt 0.78424847 0.48423985
+vt 0.85416186 0.50467610
+vt 0.85416192 0.49922436
+vt 0.86328113 0.49626982
+vt 0.86632079 0.50467610
+vt 0.29181331 0.29683730
+vt 0.27357498 0.29831460
+vt 0.27053529 0.32195106
+vt 0.26141605 0.32786015
+vt 0.24013805 0.32786015
+vt 0.23101892 0.31751922
+vt 0.23101889 0.30865553
+vt 0.25533664 0.30717826
+vt 0.22797915 0.30570099
+vt 0.22797915 0.28797364
+vt 0.21582027 0.28797364
+vt 0.21582031 0.29240546
+vt 0.20974085 0.28354183
+vt 0.20366137 0.28354183
+vt 0.20366137 0.29979187
+vt 0.19150257 0.29388276
+vt 0.19758190 0.30274644
+vt 0.18846287 0.30865553
+vt 0.19758190 0.30865553
+vt 0.19758190 0.31751922
+vt 0.18542306 0.32342830
+vt 0.17934358 0.28649637
+vt 0.17326416 0.28058726
+vt 0.16110532 0.27910998
+vt 0.11246975 0.27910998
+vt 0.11550946 0.28206453
+vt 0.10943004 0.28354180
+vt 0.11550946 0.30126914
+vt 0.12158888 0.30126914
+vt 0.12158893 0.31013283
+vt 0.11246975 0.31013280
+vt 0.11550946 0.32490560
+vt 0.12462859 0.32786015
+vt 0.12462864 0.33382064
+vt 0.14286706 0.33382064
+vt 0.10943004 0.33382061
+vt 0.10943004 0.33967835
+vt 0.11854917 0.33967838
+vt 0.11550946 0.34558749
+vt 0.12158893 0.34558746
+vt 0.11550941 0.35001931
+vt 0.43468028 0.35297385
+vt 0.43772000 0.35888299
+vt 0.49648729 0.36183751
+vt 0.49648485 0.26729175
+vt 0.49648473 0.26433718
+vt 0.49648207 0.15945046
+vt 0.49243513 0.15685225
+vt 0.41340214 0.15685262
+vt 0.41036251 0.17422326
+vt 0.42860085 0.20820060
+vt 0.42252138 0.23479168
+vt 0.98486996 0.03831367
+vt 0.99995673 0.03831357
+vt 0.99510610 0.03105916
+vt 0.98202199 0.02318095
+vt 0.98739135 0.02641394
+vt 0.99995601 0.02501815
+vt 0.99995583 0.02058631
+vt 0.97248191 0.01743672
+vt 0.98486990 0.01615456
+vt 0.98487008 0.00729088
+vt 0.97879064 0.00729088
+f 258/258 257/257 256/256
+f 249/249 251/251 250/250
+f 249/249 248/248 247/247
+f 247/247 246/246 245/245
+f 244/244 243/243 242/242
+f 241/241 240/240 239/239
+f 239/239 238/238 237/237
+f 237/237 236/236 235/235
+f 274/274 273/273 272/272
+f 272/272 271/271 270/270
+f 270/270 269/269 268/268
+f 267/267 266/266 265/265
+f 267/267 264/264 263/263
+f 259/259 261/261 260/260
+f 1/1 2/2 3/3
+f 3/3 4/4 5/5
+f 8/8 6/6 7/7
+f 8/8 9/9 10/10
+f 10/10 11/11 12/12
+f 15/15 13/13 14/14
+f 16/16 17/17 18/18
+f 19/19 20/20 21/21
+f 21/21 22/22 23/23
+f 26/26 24/24 25/25
+f 28/28 29/29 30/30
+f 30/30 31/31 32/32
+f 34/34 35/35 36/36
+f 34/34 37/37 38/38
+f 39/39 40/40 41/41
+f 45/45 42/42 43/43
+f 43/43 44/44 45/45
+f 193/193 192/192 191/191
+f 191/191 190/190 189/189
+f 188/188 187/187 186/186
+f 186/186 185/185 184/184
+f 184/184 227/227 226/226
+f 226/226 225/225 224/224
+f 224/224 223/223 222/222
+f 221/221 220/220 219/219
+f 219/219 218/218 217/217
+f 214/214 213/213 212/212
+f 211/211 229/229 212/212
+f 210/210 229/229 211/211
+f 210/210 209/209 208/208
+f 208/208 207/207 206/206
+f 203/203 205/205 204/204
+f 200/200 202/202 201/201
+f 200/200 199/199 198/198
+f 174/174 196/196 195/195
+f 195/195 194/194 193/193
+f 272/272 181/181 193/193
+f 181/181 180/180 179/179
+f 179/179 178/178 177/177
+f 177/177 176/176 175/175
+f 173/173 172/172 171/171
+f 170/170 169/169 168/168
+f 168/168 167/167 166/166
+f 166/166 165/165 164/164
+f 162/162 183/183 182/182
+f 181/181 272/272 182/182
+f 147/147 146/146 145/145
+f 145/145 144/144 143/143
+f 141/141 161/161 160/160
+f 160/160 159/159 158/158
+f 157/157 156/156 155/155
+f 154/154 153/153 152/152
+f 152/152 151/151 150/150
+f 39/39 148/148 147/147
+f 45/45 46/46 47/47
+f 47/47 48/48 49/49
+f 53/53 50/50 51/51
+f 51/51 52/52 53/53
+f 152/152 55/55 56/56
+f 56/56 57/57 58/58
+f 58/58 59/59 60/60
+f 61/61 62/62 63/63
+f 63/63 64/64 65/65
+f 65/65 66/66 67/67
+f 71/71 69/69 70/70
+f 69/69 71/71 72/72
+f 73/73 74/74 75/75
+f 77/77 291/291 294/294
+f 77/77 78/78 79/79
+f 268/268 80/80 1/1
+f 251/251 249/249 252/252
+f 244/244 242/242 241/241
+f 234/234 237/237 235/235
+f 216/216 277/277 276/276
+f 272/272 270/270 268/268
+f 264/264 267/267 265/265
+f 261/261 259/259 262/262
+f 10/10 3/3 5/5
+f 6/6 8/8 5/5
+f 13/13 15/15 12/12
+f 16/16 18/18 19/19
+f 19/19 21/21 23/23
+f 24/24 26/26 23/23
+f 30/30 32/32 33/33
+f 37/37 34/34 36/36
+f 42/42 45/45 41/41
+f 193/193 191/191 189/189
+f 186/186 184/184 226/226
+f 224/224 222/222 221/221
+f 219/219 217/217 216/216
+f 230/230 212/212 229/229
+f 229/229 210/210 228/228
+f 205/205 203/203 206/206
+f 206/206 202/202 200/200
+f 179/179 193/193 181/181
+f 174/174 177/177 175/175
+f 142/142 162/162 182/182
+f 145/145 143/143 142/142
+f 163/163 158/158 164/164
+f 41/41 149/149 148/148
+f 50/50 53/53 49/49
+f 154/154 58/58 60/60
+f 61/61 63/63 65/65
+f 65/65 67/67 68/68
+f 69/69 72/72 68/68
+f 292/292 75/75 76/76
+f 76/76 77/77 294/294
+f 291/291 77/77 79/79
+f 80/80 258/258 256/256
+f 253/253 252/252 249/249
+f 186/186 275/275 188/188
+f 267/267 263/263 262/262
+f 262/262 259/259 258/258
+f 10/10 5/5 8/8
+f 16/16 12/12 15/15
+f 10/10 23/23 1/1
+f 23/23 26/26 27/27
+f 28/28 30/30 33/33
+f 33/33 34/34 38/38
+f 47/47 41/41 45/45
+f 274/274 193/193 189/189
+f 186/186 226/226 224/224
+f 212/212 230/230 214/214
+f 208/208 228/228 210/210
+f 202/202 206/206 203/203
+f 193/193 179/179 195/195
+f 177/177 174/174 179/179
+f 147/147 145/145 142/142
+f 41/41 47/47 149/149
+f 49/49 53/53 54/54
+f 58/58 154/154 56/56
+f 170/170 65/65 68/68
+f 76/76 294/294 293/293
+f 279/279 80/80 280/280
+f 280/280 256/256 255/255
+f 253/253 249/249 247/247
+f 237/237 234/234 239/239
+f 39/39 272/272 1/1
+f 267/267 262/262 258/258
+f 3/3 10/10 1/1
+f 12/12 16/16 10/10
+f 23/23 27/27 28/28
+f 1/1 33/33 38/38
+f 148/148 39/39 41/41
+f 274/274 189/189 188/188
+f 219/219 275/275 221/221
+f 214/214 230/230 215/215
+f 73/73 228/228 208/208
+f 73/73 206/206 200/200
+f 195/195 179/179 174/174
+f 182/182 147/147 142/142
+f 49/49 149/149 47/47
+f 152/152 56/56 154/154
+f 171/171 68/68 72/72
+f 76/76 293/293 292/292
+f 281/281 254/254 244/244
+f 245/245 253/253 247/247
+f 80/80 267/267 258/258
+f 19/19 10/10 16/16
+f 33/33 23/23 28/28
+f 272/272 147/147 182/182
+f 75/75 230/230 231/231
+f 73/73 208/208 206/206
+f 173/173 196/196 174/174
+f 162/162 142/142 163/163
+f 149/149 49/49 150/150
+f 216/216 292/292 291/291
+f 253/253 245/245 254/254
+f 241/241 239/239 233/233
+f 80/80 268/268 267/267
+f 23/23 10/10 19/19
+f 193/193 274/274 272/272
+f 72/72 200/200 198/198
+f 196/196 173/173 197/197
+f 141/141 163/163 142/142
+f 54/54 150/150 49/49
+f 216/216 75/75 292/292
+f 244/244 254/254 245/245
+f 232/232 241/241 233/233
+f 244/244 282/282 281/281
+f 272/272 268/268 1/1
+f 33/33 1/1 23/23
+f 197/197 173/173 198/198
+f 160/160 163/163 141/141
+f 150/150 54/54 152/152
+f 281/281 255/255 254/254
+f 283/283 241/241 232/232
+f 147/147 272/272 39/39
+f 39/39 1/1 38/38
+f 198/198 173/173 171/171
+f 158/158 163/163 160/160
+f 55/55 152/152 54/54
+f 241/241 283/283 244/244
+f 274/274 188/188 275/275
+f 72/72 198/198 171/171
+f 157/157 164/164 158/158
+f 155/155 154/154 60/60
+f 282/282 244/244 283/283
+f 224/224 275/275 186/186
+f 68/68 171/171 170/170
+f 164/164 157/157 166/166
+f 61/61 155/155 60/60
+f 255/255 281/281 280/280
+f 221/221 275/275 224/224
+f 61/61 168/168 157/157
+f 166/166 157/157 168/168
+f 155/155 61/61 157/157
+f 256/256 280/280 80/80
+f 216/216 275/275 219/219
+f 61/61 170/170 168/168
+f 170/170 61/61 65/65
+f 80/80 279/279 79/79
+f 275/275 216/216 276/276
+f 200/200 72/72 73/73
+f 278/278 79/79 279/279
+f 277/277 216/216 291/291
+f 228/228 73/73 231/231
+f 79/79 278/278 291/291
+f 75/75 231/231 73/73
+f 277/277 291/291 278/278
+f 230/230 75/75 215/215
+f 75/75 216/216 215/215
+f 96/96 95/95 94/94
+f 94/94 93/93 92/92
+f 92/92 91/91 90/90
+f 92/92 89/89 88/88
+f 84/84 86/86 85/85
+f 84/84 83/83 82/82
+f 87/87 81/81 98/98
+f 88/88 96/96 94/94
+f 89/89 92/92 90/90
+f 81/81 86/86 84/84
+f 81/81 84/84 82/82
+f 94/94 92/92 88/88
+f 86/86 81/81 87/87
+f 87/87 96/96 88/88
+f 97/97 87/87 98/98
+f 96/96 87/87 97/97
+f 99/99 102/102 101/101
+f 101/101 100/100 99/99
+f 103/103 104/104 105/105
+f 105/105 106/106 103/103
+f 110/110 108/108 109/109
+f 108/108 110/110 107/107
+f 114/114 112/112 113/113
+f 112/112 114/114 111/111
+f 115/115 123/123 122/122
+f 118/118 120/120 119/119
+f 121/121 117/117 116/116
+f 121/121 115/115 122/122
+f 120/120 118/118 121/121
+f 115/115 121/121 116/116
+f 117/117 121/121 118/118
+f 124/124 127/127 126/126
+f 126/126 125/125 124/124
+f 128/128 129/129 130/130
+f 128/128 131/131 132/132
+f 131/131 128/128 130/130
+f 133/133 136/136 135/135
+f 135/135 134/134 133/133
+f 137/137 140/140 139/139
+f 139/139 138/138 137/137
+f 284/284 285/285 286/286
+f 290/290 288/288 289/289
+f 288/288 290/290 287/287
+
diff --git a/ai_002_003/background_mesh/15.obj b/ai_002_003/background_mesh/15.obj
new file mode 100644
index 0000000000000000000000000000000000000000..0d3a7360ca425fbc86e398cb2622c235187e8e4e
--- /dev/null
+++ b/ai_002_003/background_mesh/15.obj
@@ -0,0 +1,140 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 0.18779829 1.92518711 -2.70567107
+v 0.18809952 -4.95729780 -2.70557904
+v 0.15791833 -4.98355246 -2.70557833
+v 0.10727885 -4.95729733 -2.70557761
+v 0.07294953 -4.98354912 -2.70557690
+v -0.86170888 -4.98351669 -2.70556116
+v -0.89246589 -4.95729733 -2.70556092
+v -0.93251634 -4.98351431 -2.70555973
+v -0.96035898 -4.94313526 -2.70555997
+v -1.04580832 -4.98351049 -2.70555782
+v -1.93798232 -4.98347950 -2.70554280
+v -1.97645009 -4.95729589 -2.70554233
+v -2.00878978 -4.98347712 -2.70554161
+v -2.09282112 -4.95729637 -2.70554042
+v -2.12208176 -4.98347282 -2.70553970
+v -2.18601418 -4.95729685 -2.70553875
+v -2.22121215 -4.98346949 -2.70553780
+v -2.49028039 -4.98346043 -2.70553327
+v -2.52074909 -4.95729685 -2.70553303
+v -2.54692650 -4.98345804 -2.70553231
+v -4.33127403 -4.98339605 -2.70550203
+v -4.40354538 -4.95730019 -2.70550108
+v -4.40397263 -1.37444127 -2.70554900
+v -3.11339116 -1.37956774 -2.70557094
+v 0.10721051 -3.54114676 -2.70559669
+v 0.10721187 -3.56947041 -2.70559621
+v -0.79090059 -3.64027953 -2.70557976
+v -0.79090059 -3.59779501 -2.70558023
+v -0.73425448 -3.66860247 -2.70558023
+v -0.12531054 -3.65444112 -2.70559096
+v -0.19611800 -3.68276405 -2.70558929
+v -0.55015528 -3.68276405 -2.70558310
+v -0.57847822 -3.68276405 -2.70558262
+v -0.39437878 -3.64027953 -2.70558667
+v -0.63512409 -3.68276405 -2.70558167
+v -0.56431663 -4.27754688 -2.70557499
+v -0.57847822 -4.29170799 -2.70557451
+v -0.55015528 -4.29170799 -2.70557499
+v -0.22444093 -4.39083862 -2.70557952
+v -0.25276387 -4.37667751 -2.70557904
+v -0.19611800 -4.37667751 -2.70558000
+v -0.89242911 -4.41915894 -2.70556808
+v -0.79090059 -4.43332291 -2.70556903
+v -0.89243007 -4.43332291 -2.70556808
+vt 0.99993438 0.67475277
+vt 1.00000000 0.00256420
+vt 0.99342871 0.00000000
+vt 0.98240298 0.00256425
+vt 0.97492850 0.00000033
+vt 0.77142608 0.00000349
+vt 0.76472938 0.00256425
+vt 0.75600922 0.00000373
+vt 0.74994707 0.00394741
+vt 0.73134226 0.00000410
+vt 0.53708994 0.00000713
+vt 0.52871442 0.00256439
+vt 0.52167308 0.00000736
+vt 0.50337702 0.00256434
+vt 0.49700609 0.00000778
+vt 0.48308614 0.00256429
+vt 0.47542253 0.00000810
+vt 0.41683850 0.00000899
+vt 0.41020459 0.00256429
+vt 0.40450498 0.00000922
+vt 0.01600043 0.00001528
+vt 0.00026485 0.00256397
+vt 0.00017182 0.35248944
+vt 0.28116909 0.35198876
+vt 0.98238814 0.14087480
+vt 0.98238838 0.13810854
+vt 0.78684306 0.13119285
+vt 0.78684306 0.13534217
+vt 0.79917663 0.12842666
+vt 0.93176156 0.12980974
+vt 0.91634470 0.12704353
+vt 0.83926040 0.12704353
+vt 0.83309364 0.12704353
+vt 0.87317753 0.13119285
+vt 0.82076019 0.12704353
+vt 0.83617705 0.06895313
+vt 0.83309364 0.06757006
+vt 0.83926040 0.06757006
+vt 0.91017789 0.05788831
+vt 0.90401125 0.05927138
+vt 0.91634470 0.05927138
+vt 0.76473737 0.05512237
+vt 0.78684306 0.05373902
+vt 0.76473719 0.05373902
+f 29/29 36/36 37/37
+f 36/36 35/35 33/33
+f 4/4 2/2 3/3
+f 7/7 43/43 6/6
+f 43/43 7/7 44/44
+f 29/29 42/42 27/27
+f 9/9 44/44 7/7
+f 7/7 8/8 9/9
+f 42/42 11/11 12/12
+f 12/12 13/13 14/14
+f 14/14 15/15 16/16
+f 19/19 17/17 18/18
+f 19/19 20/20 21/21
+f 24/24 22/22 23/23
+f 36/36 29/29 35/35
+f 32/32 36/36 33/33
+f 36/36 40/40 38/38
+f 41/41 2/2 4/4
+f 40/40 6/6 43/43
+f 37/37 42/42 29/29
+f 12/12 27/27 42/42
+f 10/10 44/44 9/9
+f 11/11 44/44 10/10
+f 17/17 19/19 16/16
+f 22/22 24/24 21/21
+f 40/40 31/31 41/41
+f 38/38 43/43 37/37
+f 11/11 42/42 44/44
+f 27/27 14/14 28/28
+f 28/28 19/19 24/24
+f 21/21 24/24 19/19
+f 40/40 36/36 31/31
+f 41/41 31/31 30/30
+f 14/14 27/27 12/12
+f 19/19 28/28 16/16
+f 31/31 36/36 34/34
+f 16/16 28/28 14/14
+f 32/32 34/34 36/36
+f 30/30 26/26 41/41
+f 43/43 38/38 40/40
+f 5/5 39/39 4/4
+f 2/2 25/25 1/1
+f 25/25 2/2 26/26
+f 2/2 41/41 26/26
+f 39/39 41/41 4/4
+f 6/6 39/39 5/5
+f 39/39 6/6 40/40
+f 42/42 37/37 43/43
+
diff --git a/ai_002_003/background_mesh/16.obj b/ai_002_003/background_mesh/16.obj
new file mode 100644
index 0000000000000000000000000000000000000000..0d6d5da386c420311765bdd22eadab17ff9e51c6
--- /dev/null
+++ b/ai_002_003/background_mesh/16.obj
@@ -0,0 +1,14 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -4.76144552 3.96204925 -4.54615402
+v -4.76144600 3.96204948 -5.04759312
+v -4.76122761 2.29711533 -5.05384588
+v -4.76122713 2.29711604 -4.54615402
+vt 0.00000000 0.99999988
+vt 0.98768395 1.00000000
+vt 1.00000000 0.00000000
+vt 0.00000000 0.00000043
+f 4/4 2/2 3/3
+f 2/2 4/4 1/1
+
diff --git a/ai_002_003/background_mesh/17.obj b/ai_002_003/background_mesh/17.obj
new file mode 100644
index 0000000000000000000000000000000000000000..b9d980bce3b301ab3339647ef140fa9b3fc67dfa
--- /dev/null
+++ b/ai_002_003/background_mesh/17.obj
@@ -0,0 +1,14 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -4.36966801 5.18874598 -2.71465516
+v -4.36966801 5.18874454 -2.78534484
+v -4.36925077 2.01034498 -2.78264117
+v -4.36925459 2.03862095 -2.70559525
+vt 0.11360443 1.00000000
+vt 1.00000000 0.99999952
+vt 0.96609807 0.00000000
+vt 0.00000000 0.00889629
+f 4/4 2/2 3/3
+f 2/2 4/4 1/1
+
diff --git a/ai_002_003/background_mesh/18.obj b/ai_002_003/background_mesh/18.obj
new file mode 100644
index 0000000000000000000000000000000000000000..2588a6baf8297f07365e381d87cb777b5667a459
--- /dev/null
+++ b/ai_002_003/background_mesh/18.obj
@@ -0,0 +1,14 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -2.52155709 1.19664586 -4.60749960
+v -2.52155304 1.16499913 -4.67410707
+v -2.52143908 0.29499263 -4.67408323
+v -2.52144170 0.31574550 -4.60749960
+vt 0.00000000 1.00000000
+vt 1.00000000 0.96490145
+vt 0.99964207 0.00000000
+vt 0.00000000 0.02301647
+f 4/4 2/2 3/3
+f 2/2 4/4 1/1
+
diff --git a/ai_002_003/background_mesh/19.obj b/ai_002_003/background_mesh/19.obj
new file mode 100644
index 0000000000000000000000000000000000000000..a2266b37b707442862942a297b856997821ac3ed
--- /dev/null
+++ b/ai_002_003/background_mesh/19.obj
@@ -0,0 +1,14 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -2.29785728 0.31575558 -4.67408180
+v -2.29785728 0.31575564 -4.60428572
+v -2.52144170 0.31574550 -4.60428572
+v -2.51214290 0.31574583 -4.67408371
+vt 0.00002733 1.00000000
+vt 1.00000000 1.00000000
+vt 1.00000000 0.00000000
+vt 0.00000000 0.04158967
+f 4/4 2/2 3/3
+f 2/2 4/4 1/1
+
diff --git a/ai_002_003/background_mesh/2.obj b/ai_002_003/background_mesh/2.obj
new file mode 100644
index 0000000000000000000000000000000000000000..248610f93563d25631fc71f161d7b24831b91d0c
--- /dev/null
+++ b/ai_002_003/background_mesh/2.obj
@@ -0,0 +1,36 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 3.84313035 6.69273043 -0.30145136
+v -4.43955994 6.69183350 -0.30131039
+v -4.43659496 -4.96871901 -0.30115464
+v 3.84312987 -4.98364305 -0.30129531
+v 0.10711896 -1.61889172 -0.30127671
+v 0.10706848 -0.57295305 -0.30129069
+v -0.89204776 -0.55881757 -0.30127385
+v -0.92014223 -1.38191247 -0.30126241
+v -0.92012417 -1.68568242 -0.30125839
+v -0.90598905 -3.48472166 -0.30123457
+v 0.10720831 -3.47048211 -0.30125198
+vt 0.00000000 1.00000000
+vt 1.00000000 0.99992317
+vt 0.99964213 0.00127814
+vt 0.00000012 0.00000000
+vt 0.45106259 0.28816751
+vt 0.45106867 0.37774485
+vt 0.57169574 0.37895548
+vt 0.57508767 0.30846313
+vt 0.57508546 0.28244734
+vt 0.57337892 0.12837216
+vt 0.45105180 0.12959169
+f 7/7 2/2 3/3
+f 3/3 4/4 11/11
+f 5/5 11/11 4/4
+f 3/3 11/11 10/10
+f 6/6 5/5 4/4
+f 3/3 10/10 9/9
+f 6/6 4/4 1/1
+f 3/3 9/9 8/8
+f 2/2 6/6 1/1
+f 3/3 8/8 7/7
+
diff --git a/ai_002_003/background_mesh/20.obj b/ai_002_003/background_mesh/20.obj
new file mode 100644
index 0000000000000000000000000000000000000000..65cbb848d65bda4b2c549506644aa06f031178b3
--- /dev/null
+++ b/ai_002_003/background_mesh/20.obj
@@ -0,0 +1,14 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -4.38738060 2.29713225 -5.04754400
+v -4.39864016 2.29713249 -4.44796705
+v -4.76122713 2.29711604 -4.44797611
+v -4.76122761 2.29711533 -5.03797626
+vt 0.00000000 1.00000000
+vt 1.00000000 0.96988189
+vt 0.99998486 0.00000128
+vt 0.01595748 0.00000000
+f 4/4 2/2 3/3
+f 2/2 4/4 1/1
+
diff --git a/ai_002_003/background_mesh/21.obj b/ai_002_003/background_mesh/21.obj
new file mode 100644
index 0000000000000000000000000000000000000000..b969ed7e76b34c0918672f03cca1401eb59d9da2
--- /dev/null
+++ b/ai_002_003/background_mesh/21.obj
@@ -0,0 +1,14 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -1.17267561 2.01678061 -2.78269529
+v -1.17267525 2.01678061 -2.70564914
+v -4.23732471 2.01664138 -2.70559716
+v -4.23732471 2.01664138 -2.78264332
+vt 0.00000000 0.99999982
+vt 0.99932587 1.00000000
+vt 1.00000000 0.00000000
+vt 0.00067414 0.00000000
+f 4/4 2/2 3/3
+f 2/2 4/4 1/1
+
diff --git a/ai_002_003/background_mesh/22.obj b/ai_002_003/background_mesh/22.obj
new file mode 100644
index 0000000000000000000000000000000000000000..0d9733339b310fa156d9ba7ec8d808c0b41864a9
--- /dev/null
+++ b/ai_002_003/background_mesh/22.obj
@@ -0,0 +1,490 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -4.76145267 4.01206684 -5.04759455
+v -4.39685917 4.01206684 -5.04759073
+v -4.41515923 3.75766134 -5.04758501
+v -4.39682007 3.68699336 -5.04758215
+v -4.36947203 3.68699527 -5.04758215
+v -4.36946630 3.64459443 -5.04758072
+v -4.39681530 3.64459252 -5.04758072
+v -4.41504908 2.74004126 -5.04755688
+v -4.41445446 -2.77206683 -5.04740477
+v -4.76056242 -2.77207160 -5.04740763
+v -1.46958280 -0.10081410 -5.04745340
+v -1.37064743 -0.00187874 -5.04745531
+v -1.34238029 0.08292294 -5.04745722
+v -1.29997945 0.08292294 -5.04745674
+v -1.28584576 0.02638841 -5.04745531
+v -1.07384157 -0.14321494 -5.04744864
+v -1.07384157 -0.18561578 -5.04744768
+v -1.01118350 -0.18560946 -5.04744673
+v -1.01117420 -0.25628662 -5.04744482
+v -0.96097481 -0.25628197 -5.04744434
+v -0.94663846 -0.31179857 -5.04744339
+v -0.89226466 -0.32695258 -5.04744196
+v -0.89226949 -0.39761662 -5.04744005
+v -0.83357024 -0.39761972 -5.04743958
+v -0.77703571 -0.44002056 -5.04743814
+v -0.45196271 -0.79336095 -5.04742622
+v 0.04271364 -1.11843395 -5.04741287
+v 0.04271364 4.01206684 -5.04755449
+v -4.04189968 4.01206684 -5.04758835
+v -3.75922775 3.41845512 -5.04756927
+v -3.34935284 3.51739025 -5.04756880
+v -3.36348653 2.55630493 -5.04754210
+v -3.30695200 2.49977040 -5.04754019
+v -3.25041771 2.37256789 -5.04753637
+v -3.25041556 2.29718399 -5.04753447
+v -3.20801735 2.29718590 -5.04753399
+v -3.17974949 2.18883085 -5.04753065
+v -3.13734865 2.18883085 -5.04753017
+v -3.13734865 3.58805847 -5.04756880
+v -2.99601269 3.63045931 -5.04756927
+v -2.76987481 2.90964508 -5.04754734
+v -2.72747397 2.86724424 -5.04754543
+v -2.72747397 2.76830888 -5.04754305
+v -2.67093945 2.59870577 -5.04753780
+v -2.64267230 2.59870577 -5.04753780
+v -2.58613563 2.29721403 -5.04752874
+v -2.52169871 2.27363539 -5.04752779
+v -2.52167082 2.06162381 -5.04752159
+v -2.47306848 2.01671863 -5.04751968
+v -2.47306800 1.95105934 -5.04751825
+v -2.43066907 1.95106125 -5.04751778
+v -2.40240049 1.75546074 -5.04751253
+v -2.37413502 1.75546193 -5.04751205
+v -2.36000013 1.63762009 -5.04750872
+v -2.33173275 1.63762009 -5.04750824
+v -2.27519846 1.35494781 -5.04750013
+v -2.26106501 1.32668066 -5.04749918
+v -2.18650389 1.32668436 -5.04749870
+v -2.18647766 1.00160456 -5.04748964
+v -2.09360361 1.00161290 -5.04748869
+v -2.09357953 0.81786847 -5.04748344
+v -2.02079105 0.80041945 -5.04748249
+v -1.97720122 0.76134008 -5.04748154
+v -1.97719204 0.69066286 -5.04747963
+v -1.92185819 0.69066823 -5.04747868
+v -1.65331960 0.39386237 -5.04746866
+v -1.61091876 0.39386237 -5.04746819
+v -1.61091709 0.31578630 -5.04746580
+v -1.49785221 0.31579143 -5.04746485
+v -1.49784994 0.23839259 -5.04746294
+v -1.46958280 0.22425890 -5.04746199
+v -1.61091876 0.08292294 -5.04745960
+v -1.58265162 -0.01601243 -5.04745674
+v -1.70985413 -0.14321494 -5.04745436
+v -1.72398758 -0.21388292 -5.04745245
+v -1.76638842 -0.22801638 -5.04745197
+v -1.76638651 -0.31183580 -5.04745007
+v -1.85119212 -0.31183967 -5.04745054
+v -1.87945735 -0.44002056 -5.04744720
+v -1.92185819 -0.48242140 -5.04744673
+v -1.97703803 -0.48242676 -5.04744720
+v -1.89359093 -0.58135676 -5.04744387
+v -1.85119009 -0.49655509 -5.04744577
+v -1.69572043 -0.41175342 -5.04744673
+v -1.66745532 -0.31183130 -5.04744911
+v -1.59678316 -0.31182811 -5.04744864
+v -1.59678507 -0.24215007 -5.04745054
+v -1.55438423 -0.18561578 -5.04745197
+v -1.51198363 -0.18561578 -5.04745150
+v -3.37762022 0.19599175 -5.04747772
+v -3.37762022 0.39386237 -5.04748297
+v -3.19388318 0.57759929 -5.04748631
+v -2.64267230 0.57759929 -5.04748201
+v -2.61440516 0.62000012 -5.04748249
+v -2.52148342 0.63413846 -5.04748249
+v -2.52149820 0.74720001 -5.04748535
+v -2.47306681 0.80044609 -5.04748631
+v -2.37413621 0.80044031 -5.04748535
+v -2.37413764 0.89681029 -5.04748821
+v -2.18646955 0.90267259 -5.04748678
+v -2.18643999 0.53520221 -5.04747677
+v -2.24693108 0.53519845 -5.04747725
+v -2.30346584 0.46453047 -5.04747581
+v -2.34586668 0.47866404 -5.04747677
+v -2.38826752 0.40799594 -5.04747486
+v -2.45893526 0.37972879 -5.04747486
+v -2.45893312 0.31574777 -5.04747295
+v -2.52144814 0.36558878 -5.04747486
+v -2.47306752 0.31574714 -5.04747295
+v -2.52144647 0.35145700 -5.04747438
+v -2.48720169 0.31574649 -5.04747295
+v -2.52144456 0.33732533 -5.04747438
+v -2.50133586 0.31574586 -5.04747343
+v -2.52960372 0.31574458 -5.04747343
+v -2.52143908 0.29492819 -5.04747295
+v -2.58613992 0.31574199 -5.04747391
+v -2.58613777 0.19599175 -5.04747105
+v -2.62853861 0.15359092 -5.04747009
+v -2.64267230 -0.00187874 -5.04746580
+v -2.64267039 -0.31187561 -5.04745722
+v -2.72747588 -0.31187946 -5.04745817
+v -2.72747397 -0.38348627 -5.04745579
+v -2.84054279 -0.44002056 -5.04745531
+v -2.84054279 -0.48242140 -5.04745436
+v -3.15148234 -0.48242140 -5.04745722
+v -3.34935284 -0.44002056 -5.04745960
+v -3.34935284 -0.39761972 -5.04746056
+v -3.39175367 -0.38348627 -5.04746151
+v -1.97673762 -2.77207017 -5.04738426
+v -2.36000013 -2.77206683 -5.04738712
+v -2.26106501 -2.39045906 -5.04739666
+v -2.18620348 -2.39045525 -5.04739618
+v -2.18622732 -2.09365630 -5.04740429
+v -2.09319758 -2.09364796 -5.04740334
+v -2.09324026 -1.76858592 -5.04741240
+v -1.97687304 -1.74030709 -5.04741240
+v -2.02079535 -1.68573844 -5.04741383
+v -1.97687674 -1.71204734 -5.04741335
+v -1.95012665 -1.68573523 -5.04741335
+v -1.04557562 -1.68569410 -5.04740572
+v -1.01098323 -1.71204853 -5.04740477
+v -0.93250591 -1.68568897 -5.04740477
+v -0.89235926 -1.71204543 -5.04740381
+v -0.89241618 -2.54592824 -5.04738092
+v 0.04271579 -2.55441070 -5.04737377
+v 0.04271364 -2.77206683 -5.04736710
+v -0.69223404 -2.77206683 -5.04737329
+v -0.70636773 -2.74379897 -5.04737425
+v -0.74876857 -2.77206683 -5.04737377
+v -2.33173275 -2.26325655 -5.04740047
+v -2.28933191 -2.15018749 -5.04740381
+v -2.24693108 -2.15018749 -5.04740334
+v -2.28933191 -2.30565739 -5.04739952
+v -2.43066812 -2.55429745 -5.04739428
+v -2.40240264 -2.55429888 -5.04739428
+v -2.36000013 -2.36219168 -5.04739857
+v -2.30346584 -2.31979084 -5.04739904
+v -2.36000109 -2.55430079 -5.04739380
+v -2.38826585 -2.55429935 -5.04739428
+v -2.41653442 -2.77206683 -5.04738760
+v -2.52103662 -2.77207303 -5.04738855
+v -2.52105498 -2.63073659 -5.04739237
+v -2.45893526 -2.63073015 -5.04739189
+v -2.45893359 -2.55429626 -5.04739475
+v -1.97702324 -0.59549594 -5.04744434
+v -1.01098323 -1.71203518 -5.04740477
+vt 0.00000000 1.00000000
+vt 0.07589107 1.00000000
+vt 0.07208186 0.96250004
+vt 0.07589921 0.95208335
+vt 0.08159178 0.95208365
+vt 0.08159296 0.94583362
+vt 0.07590020 0.94583338
+vt 0.07210480 0.81250018
+vt 0.07222857 0.00000091
+vt 0.00018531 0.00000021
+vt 0.68521112 0.39375058
+vt 0.70580477 0.40833393
+vt 0.71168864 0.42083392
+vt 0.72051448 0.42083392
+vt 0.72345644 0.41250056
+vt 0.76758569 0.38750058
+vt 0.76758569 0.38125059
+vt 0.78062814 0.38125151
+vt 0.78063005 0.37083352
+vt 0.79107922 0.37083420
+vt 0.79406333 0.36265093
+vt 0.80538142 0.36041716
+vt 0.80538034 0.35000110
+vt 0.81759876 0.35000065
+vt 0.82936656 0.34375066
+vt 0.89703143 0.29166737
+vt 0.99999952 0.24375074
+vt 0.99999952 1.00000000
+vt 0.14977680 1.00000000
+vt 0.20861568 0.91250008
+vt 0.29393220 0.92708337
+vt 0.29099023 0.78541684
+vt 0.30275804 0.77708358
+vt 0.31452578 0.75833356
+vt 0.31452623 0.74722177
+vt 0.32335153 0.74722207
+vt 0.32923555 0.73125029
+vt 0.33806139 0.73125029
+vt 0.33806139 0.93750006
+vt 0.36748084 0.94375014
+vt 0.41455203 0.83750015
+vt 0.42337787 0.83125019
+vt 0.42337787 0.81666684
+vt 0.43514568 0.79166692
+vt 0.44102955 0.79166692
+vt 0.45279780 0.74722624
+vt 0.46621051 0.74375069
+vt 0.46621633 0.71249962
+vt 0.47633302 0.70588046
+vt 0.47633311 0.69620210
+vt 0.48515856 0.69620234
+vt 0.49104273 0.66737032
+vt 0.49692628 0.66737056
+vt 0.49986848 0.65000039
+vt 0.50575244 0.65000039
+vt 0.51752019 0.60833371
+vt 0.52046210 0.60416710
+vt 0.53598219 0.60416758
+vt 0.53598762 0.55624998
+vt 0.55531961 0.55625123
+vt 0.55532461 0.52916682
+vt 0.57047570 0.52659482
+vt 0.57954907 0.52083439
+vt 0.57955098 0.51041639
+vt 0.59106880 0.51041716
+vt 0.64696586 0.46666721
+vt 0.65579170 0.46666721
+vt 0.65579206 0.45515859
+vt 0.67932677 0.45515934
+vt 0.67932725 0.44375053
+vt 0.68521112 0.44166720
+vt 0.65579170 0.42083392
+vt 0.66167557 0.40625057
+vt 0.63519806 0.38750058
+vt 0.63225615 0.37708393
+vt 0.62343031 0.37500063
+vt 0.62343067 0.36264545
+vt 0.60577822 0.36264488
+vt 0.59989464 0.34375066
+vt 0.59106880 0.33750066
+vt 0.57958305 0.33749986
+vt 0.59695274 0.32291734
+vt 0.60577857 0.33541733
+vt 0.63814002 0.34791732
+vt 0.64402348 0.36264610
+vt 0.65873402 0.36264655
+vt 0.65873367 0.37291729
+vt 0.66755950 0.38125059
+vt 0.67638528 0.38125059
+vt 0.28804827 0.43750054
+vt 0.28804827 0.46666721
+vt 0.32629359 0.49375048
+vt 0.44102955 0.49375048
+vt 0.44691342 0.50000048
+vt 0.46625534 0.50208449
+vt 0.46625224 0.51875007
+vt 0.47633338 0.52659869
+vt 0.49692604 0.52659786
+vt 0.49692574 0.54080302
+vt 0.53598934 0.54166716
+vt 0.53599548 0.48750106
+vt 0.52340412 0.48750049
+vt 0.51163626 0.47708386
+vt 0.50281042 0.47916719
+vt 0.49398455 0.46875051
+vt 0.47927490 0.46458387
+vt 0.47927535 0.45515290
+vt 0.46626267 0.46249962
+vt 0.47633323 0.45515281
+vt 0.46626303 0.46041656
+vt 0.47339115 0.45515272
+vt 0.46626341 0.45833349
+vt 0.47044909 0.45515260
+vt 0.46456507 0.45515242
+vt 0.46626455 0.45208406
+vt 0.45279691 0.45515203
+vt 0.45279735 0.43750054
+vt 0.44397151 0.43125054
+vt 0.44102955 0.40833393
+vt 0.44102994 0.36263958
+vt 0.42337748 0.36263901
+vt 0.42337787 0.35208395
+vt 0.39984229 0.34375066
+vt 0.39984229 0.33750066
+vt 0.33511946 0.33750066
+vt 0.29393220 0.34375066
+vt 0.29393220 0.35000065
+vt 0.28510636 0.35208395
+vt 0.57964557 0.00000042
+vt 0.49986848 0.00000091
+vt 0.52046210 0.05625090
+vt 0.53604472 0.05625146
+vt 0.53603977 0.10000041
+vt 0.55540413 0.10000164
+vt 0.55539525 0.14791663
+vt 0.57961738 0.15208501
+vt 0.57047480 0.16012858
+vt 0.57961661 0.15625057
+vt 0.58518469 0.16012904
+vt 0.77346933 0.16013511
+vt 0.78066981 0.15625040
+vt 0.79700506 0.16013587
+vt 0.80536169 0.15625085
+vt 0.80534983 0.03333434
+vt 1.00000000 0.03208400
+vt 0.99999952 0.00000091
+vt 0.84701824 0.00000091
+vt 0.84407634 0.00416767
+vt 0.83525044 0.00000091
+vt 0.50575244 0.07500088
+vt 0.51457828 0.09166756
+vt 0.52340412 0.09166756
+vt 0.51457828 0.06875089
+vt 0.48515877 0.03210069
+vt 0.49104229 0.03210048
+vt 0.49986848 0.06041759
+vt 0.51163626 0.06666758
+vt 0.49986830 0.03210020
+vt 0.49398491 0.03210041
+vt 0.48810074 0.00000091
+vt 0.46634832 0.00000000
+vt 0.46634451 0.02083336
+vt 0.47927490 0.02083431
+vt 0.47927523 0.03210087
+vt 0.57958615 0.32083318
+vt 0.78066981 0.15625237
+f 1/1 2/2 3/3
+f 7/7 5/5 6/6
+f 8/8 9/9 10/10
+f 7/7 3/3 4/4
+f 5/5 7/7 4/4
+f 1/1 8/8 10/10
+f 3/3 7/7 1/1
+f 1/1 7/7 8/8
+f 165/165 81/81 80/80
+f 79/79 78/78 77/77
+f 77/77 76/76 75/75
+f 88/88 74/74 73/73
+f 13/13 72/72 71/71
+f 71/71 70/70 69/69
+f 69/69 68/68 67/67
+f 67/67 66/66 65/65
+f 65/65 64/64 63/63
+f 62/62 61/61 60/60
+f 60/60 59/59 58/58
+f 58/58 57/57 56/56
+f 55/55 54/54 53/53
+f 53/53 52/52 51/51
+f 51/51 50/50 49/49
+f 49/49 48/48 47/47
+f 47/47 46/46 45/45
+f 45/45 44/44 43/43
+f 42/42 41/41 40/40
+f 36/36 38/38 37/37
+f 36/36 35/35 34/34
+f 39/39 32/32 31/31
+f 31/31 30/30 29/29
+f 25/25 27/27 26/26
+f 24/24 23/23 22/22
+f 22/22 21/21 20/20
+f 20/20 19/19 18/18
+f 18/18 17/17 16/16
+f 16/16 15/15 14/14
+f 73/73 12/12 11/11
+f 11/11 89/89 88/88
+f 87/87 86/86 85/85
+f 79/79 84/84 83/83
+f 80/80 82/82 165/165
+f 83/83 80/80 79/79
+f 72/72 12/12 73/73
+f 60/60 67/67 65/65
+f 63/63 62/62 60/60
+f 58/58 56/56 55/55
+f 28/28 53/53 51/51
+f 51/51 49/49 47/47
+f 45/45 43/43 42/42
+f 38/38 36/36 39/39
+f 39/39 34/34 33/33
+f 27/27 25/25 28/28
+f 25/25 24/24 22/22
+f 22/22 20/20 18/18
+f 18/18 16/16 14/14
+f 73/73 11/11 88/88
+f 75/75 85/85 77/77
+f 80/80 83/83 82/82
+f 84/84 79/79 77/77
+f 60/60 65/65 63/63
+f 67/67 58/58 69/69
+f 28/28 55/55 53/53
+f 28/28 45/45 42/42
+f 34/34 39/39 36/36
+f 18/18 25/25 22/22
+f 85/85 75/75 87/87
+f 84/84 77/77 85/85
+f 58/58 67/67 60/60
+f 28/28 51/51 47/47
+f 32/32 39/39 33/33
+f 25/25 18/18 28/28
+f 74/74 87/87 75/75
+f 55/55 28/28 58/58
+f 39/39 31/31 29/29
+f 28/28 18/18 14/14
+f 87/87 74/74 88/88
+f 45/45 28/28 47/47
+f 40/40 39/39 29/29
+f 71/71 14/14 13/13
+f 12/12 72/72 13/13
+f 28/28 42/42 40/40
+f 40/40 29/29 28/28
+f 69/69 14/14 71/71
+f 58/58 28/28 69/69
+f 14/14 69/69 28/28
+f 90/90 91/91 92/92
+f 93/93 94/94 95/95
+f 98/98 96/96 97/97
+f 98/98 99/99 100/100
+f 98/98 101/101 102/102
+f 102/102 103/103 104/104
+f 104/104 105/105 106/106
+f 106/106 107/107 108/108
+f 108/108 109/109 110/110
+f 110/110 111/111 112/112
+f 112/112 113/113 114/114
+f 114/114 115/115 116/116
+f 116/116 117/117 118/118
+f 119/119 120/120 121/121
+f 121/121 122/122 123/123
+f 123/123 124/124 125/125
+f 125/125 126/126 127/127
+f 127/127 128/128 90/90
+f 116/116 92/92 93/93
+f 96/96 98/98 95/95
+f 101/101 98/98 100/100
+f 95/95 106/106 108/108
+f 116/116 112/112 114/114
+f 90/90 121/121 125/125
+f 121/121 123/123 125/125
+f 125/125 127/127 90/90
+f 108/108 93/93 95/95
+f 95/95 98/98 102/102
+f 112/112 116/116 110/110
+f 121/121 90/90 119/119
+f 118/118 92/92 116/116
+f 95/95 102/102 104/104
+f 110/110 116/116 108/108
+f 119/119 90/90 118/118
+f 106/106 95/95 104/104
+f 92/92 118/118 90/90
+f 93/93 108/108 116/116
+f 132/132 130/130 131/131
+f 132/132 133/133 134/134
+f 134/134 135/135 136/136
+f 136/136 137/137 138/138
+f 136/136 139/139 140/140
+f 140/140 166/166 141/141
+f 141/141 142/142 143/143
+f 147/147 145/145 146/146
+f 145/145 147/147 148/148
+f 134/134 129/129 132/132
+f 130/130 132/132 129/129
+f 140/140 134/134 136/136
+f 139/139 136/136 138/138
+f 141/141 143/143 144/144
+f 145/145 148/148 144/144
+f 129/129 144/144 149/149
+f 144/144 134/134 140/140
+f 140/140 141/141 144/144
+f 149/149 144/144 148/148
+f 129/129 134/134 144/144
+f 150/150 151/151 152/152
+f 152/152 153/153 150/150
+f 158/158 156/156 157/157
+f 156/156 158/158 159/159
+f 163/163 160/160 161/161
+f 161/161 162/162 163/163
+f 163/163 164/164 154/154
+f 156/156 159/159 155/155
+f 160/160 163/163 159/159
+f 163/163 154/154 155/155
+f 155/155 159/159 163/163
+
diff --git a/ai_002_003/background_mesh/23.obj b/ai_002_003/background_mesh/23.obj
new file mode 100644
index 0000000000000000000000000000000000000000..2668355352350a58d9693e82072b539ba278635d
--- /dev/null
+++ b/ai_002_003/background_mesh/23.obj
@@ -0,0 +1,481 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -2.52154350 1.09207034 -4.67410517
+v -1.97724450 1.09207511 -4.67410088
+v -1.97714067 0.30028331 -4.67407894
+v -2.00317621 0.31576896 -4.67407942
+v -1.97713506 0.25786984 -4.67407799
+v -2.09350610 0.25785828 -4.67407846
+v -2.09349680 0.18717027 -4.67407656
+v -2.52142477 0.18716431 -4.67408037
+v 0.03285050 0.65375853 -4.67407274
+v 0.03285050 1.09206986 -4.67408466
+v -0.96115166 1.09206915 -4.67409182
+v -0.96114606 1.04964805 -4.67409086
+v -0.89215237 1.04965091 -4.67409039
+v -0.89215815 0.96482158 -4.67408800
+v -0.81549358 0.95067906 -4.67408800
+v -0.81548929 0.89697671 -4.67408562
+v -0.71652496 0.89698744 -4.67408466
+v -0.71652228 0.80033749 -4.67408228
+v -0.60340482 0.80033082 -4.67408133
+v -0.60340762 0.72445369 -4.67407990
+v -0.22165275 0.37097704 -4.67406654
+v -0.22165084 0.31584987 -4.67406464
+v -0.12268126 0.31585437 -4.67406368
+v -0.12267923 0.25786459 -4.67406321
+v 0.01871145 0.11647391 -4.67405748
+v -1.19724846 0.56892395 -4.67408037
+v -1.11241412 0.68203664 -4.67408276
+v -0.96109599 0.66790080 -4.67408037
+v -0.96107554 0.51237082 -4.67407608
+v -1.01127493 0.51236629 -4.67407656
+v -1.01126385 0.42753923 -4.67407417
+v -1.06999683 0.42753339 -4.67407513
+v -1.11241221 0.31580943 -4.67407179
+v -1.21138954 0.31580493 -4.67407274
+v -1.22552657 0.21544731 -4.67407084
+v -1.25380468 0.21544731 -4.67407084
+v -1.26794386 0.15889108 -4.67406940
+v -1.32450008 0.14475203 -4.67406940
+v -1.36691737 0.05991757 -4.67406750
+v -1.40933454 0.04577851 -4.67406750
+v -1.43761265 0.07405663 -4.67406845
+v -1.56486428 -0.06733406 -4.67406607
+v -1.66383779 -0.12389040 -4.67406464
+v -1.60728145 0.00336134 -4.67406797
+v -1.42347360 0.24372554 -4.67407322
+v -1.42347562 0.31579527 -4.67407465
+v -1.33863723 0.31579915 -4.67407370
+v -1.32450008 0.41339433 -4.67407703
+v -1.29622197 0.41339433 -4.67407703
+v -0.81549203 -3.01701283 -4.67397833
+v -0.89242935 -3.00826001 -4.67397833
+v -0.89234054 -1.70746577 -4.67401409
+v -0.91446811 -1.68568766 -4.67401505
+v -0.96078432 -1.70746851 -4.67401457
+v -0.97102368 -1.68569028 -4.67401552
+v -1.01098371 -1.70746768 -4.67401505
+v -1.02758002 -1.68569291 -4.67401600
+v -1.94662011 -1.68573463 -4.67402363
+v -1.97687721 -1.70746827 -4.67402363
+v -2.03145528 -1.68573844 -4.67402411
+v -2.03145361 -1.74988329 -4.67402315
+v -2.09324265 -1.74988961 -4.67402315
+v -2.09320188 -2.06093788 -4.67401457
+v -2.18623304 -2.06094480 -4.67401552
+v -2.18620777 -2.37199879 -4.67400694
+v -2.25767851 -2.37200236 -4.67400789
+v -2.28595686 -2.25888968 -4.67401123
+v -2.31423497 -2.28716779 -4.67401075
+v -2.30009604 -2.32958508 -4.67400932
+v -2.35665226 -2.35786319 -4.67400885
+v -2.35665226 -2.41441941 -4.67400742
+v -2.46976471 -2.65478373 -4.67400169
+v -2.52105188 -2.65478873 -4.67400169
+v -2.52100730 -2.99412251 -4.67399263
+v -2.46976256 -3.01693726 -4.67399216
+v -2.52099824 -3.06481600 -4.67399073
+v -2.52098155 -3.19207335 -4.67398691
+v -0.81549358 -3.19206834 -4.67397356
+v -2.18622375 -2.17405295 -4.67401218
+v -2.24353957 -2.15991616 -4.67401409
+v -2.24353957 -2.18819427 -4.67401314
+v -2.32837391 -2.42855859 -4.67400694
+v -2.28595686 -2.34372425 -4.67400885
+v -2.25767851 -2.40028048 -4.67400742
+v -2.27181768 -2.47097564 -4.67400551
+v -2.35665226 -2.51339293 -4.67400455
+v -2.31423497 -2.47097564 -4.67400599
+v -2.30009604 -2.55581021 -4.67400312
+v -2.32837391 -2.56994915 -4.67400312
+v -2.34251308 -2.61236644 -4.67400169
+v -2.32837391 -2.66892266 -4.67400026
+v -2.38493013 -2.64064455 -4.67400169
+v -2.39906931 -2.71133995 -4.67399979
+v -2.39906931 -2.66892266 -4.67400074
+v -2.37079120 -2.66892266 -4.67400074
+v -2.35665226 -2.73961806 -4.67399836
+v -2.42734766 -2.73961806 -4.67399931
+v -2.39906931 -2.73961806 -4.67399883
+v -2.38493013 -2.81031346 -4.67399693
+v -2.44148660 -2.78203535 -4.67399836
+v -2.41320848 -2.76789618 -4.67399788
+v -0.53271222 -2.76789618 -4.67398262
+v -0.49029493 -2.75375724 -4.67398262
+v -0.50443411 -2.78203535 -4.67398214
+v -2.46976471 -2.85273051 -4.67399597
+v -2.45562553 -2.81031346 -4.67399740
+v -2.39906931 -2.83859158 -4.67399597
+v -2.41320848 -2.88100886 -4.67399502
+v -0.33476520 -2.85273051 -4.67397833
+v 0.03285050 -2.86686969 -4.67397547
+v 0.03285050 -3.19206834 -4.67396641
+v 0.00457239 -3.16378999 -4.67396688
+v -0.05198383 -3.19206834 -4.67396688
+v -0.10854018 -3.19206834 -4.67396736
+v -0.10854018 -3.16378999 -4.67396784
+v -0.19337451 -3.19206834 -4.67396832
+v -0.47615600 -3.19206834 -4.67397070
+v -0.47615600 -3.16378999 -4.67397118
+v -0.53271222 -3.14965105 -4.67397213
+v -0.56099033 -3.14965105 -4.67397213
+v -0.56099033 -3.19206834 -4.67397118
+v -0.60340762 -3.19206834 -4.67397165
+v -0.64582479 -3.13551188 -4.67397356
+v -0.65996385 -3.17792916 -4.67397261
+v -0.73065925 -3.19206834 -4.67397261
+v -0.73065925 -3.16378999 -4.67397308
+v -0.80135453 -3.13551188 -4.67397451
+v -0.80135494 -3.01701355 -4.67397833
+v -0.75893736 -3.14965105 -4.67397404
+v -0.73065925 -3.14965105 -4.67397356
+v -0.70237958 -3.01701808 -4.67397738
+v -0.58927011 -3.01702332 -4.67397642
+v -0.58926845 -2.89514780 -4.67397976
+v -0.56099033 -2.85273051 -4.67398024
+v -0.50443411 -2.85273051 -4.67397976
+v -0.49029493 -2.88100886 -4.67397928
+v -0.44787788 -2.85273051 -4.67397928
+v -2.42734766 -2.93756509 -4.67399406
+v -2.42734766 -2.90928698 -4.67399454
+v -2.46976471 -2.90928698 -4.67399454
+v -2.45562553 -2.88100886 -4.67399549
+v -2.52102232 -2.88101387 -4.67399549
+v -2.52101660 -2.92343092 -4.67399454
+v -2.49804378 -3.01693583 -4.67399263
+v -2.52101302 -2.95170522 -4.67399359
+v -2.46976471 -2.95170403 -4.67399359
+v -0.51857358 -3.01702642 -4.67397594
+v -0.51857316 -2.96584320 -4.67397690
+v -0.49029493 -2.96584320 -4.67397690
+v -0.49029535 -3.01702785 -4.67397594
+v -0.02370572 -3.07895565 -4.67396975
+v -0.02370358 -3.01704907 -4.67397165
+v 0.00457454 -3.01705050 -4.67397165
+v 0.00457239 -3.09309483 -4.67396927
+v -0.54685128 -3.12137294 -4.67397308
+v -0.49029493 -3.09309483 -4.67397356
+v -0.49029493 -3.14965105 -4.67397165
+v -0.75893515 -3.01701546 -4.67397785
+v -2.46976638 -3.01693726 -4.67399216
+vt 0.00000000 0.99999887
+vt 0.21308342 1.00000000
+vt 0.21312407 0.81518108
+vt 0.20293161 0.81879574
+vt 0.21312626 0.80528098
+vt 0.16756906 0.80527830
+vt 0.16757271 0.78877842
+vt 0.00004648 0.78877699
+vt 1.00000000 0.89768881
+vt 1.00000000 0.99999887
+vt 0.61086577 0.99999869
+vt 0.61086792 0.99009675
+vt 0.63787776 0.99009740
+vt 0.63787550 0.97029668
+vt 0.66788834 0.96699566
+vt 0.66789001 0.95446050
+vt 0.70663279 0.95446295
+vt 0.70663387 0.93190306
+vt 0.75091732 0.93190151
+vt 0.75091624 0.91419035
+vt 0.90036649 0.83168238
+vt 0.90036726 0.81881458
+vt 0.93911213 0.81881565
+vt 0.93911284 0.80527973
+vt 0.99446487 0.77227658
+vt 0.51843804 0.87788683
+vt 0.55164921 0.90428942
+vt 0.61088753 0.90098989
+vt 0.61089557 0.86468625
+vt 0.59124339 0.86468524
+vt 0.59124774 0.84488499
+vt 0.56825483 0.84488362
+vt 0.55164993 0.81880522
+vt 0.51290208 0.81880414
+vt 0.50736767 0.79537880
+vt 0.49629730 0.79537880
+vt 0.49076205 0.78217757
+vt 0.46862128 0.77887720
+vt 0.45201567 0.75907522
+vt 0.43541011 0.75577492
+vt 0.42433971 0.76237559
+vt 0.37452295 0.72937232
+vt 0.33577660 0.71617103
+vt 0.35791740 0.74587393
+vt 0.42987493 0.80197948
+vt 0.42987412 0.81880188
+vt 0.46308684 0.81880283
+vt 0.46862128 0.84158331
+vt 0.47969168 0.84158331
+vt 0.66788894 0.04086239
+vt 0.63776934 0.04290546
+vt 0.63780409 0.34653506
+vt 0.62914157 0.35161847
+vt 0.61100960 0.34653443
+vt 0.60700107 0.35161787
+vt 0.59135741 0.34653461
+vt 0.58486021 0.35161725
+vt 0.22507232 0.35160753
+vt 0.21322720 0.34653449
+vt 0.19186085 0.35160664
+vt 0.19186151 0.33663401
+vt 0.16767220 0.33663255
+vt 0.16768816 0.26402810
+vt 0.13126810 0.26402646
+vt 0.13127799 0.19142067
+vt 0.10329847 0.19141984
+vt 0.09222800 0.21782245
+vt 0.08115762 0.21122181
+vt 0.08669276 0.20132083
+vt 0.06455200 0.19472019
+vt 0.06455200 0.18151891
+vt 0.02027048 0.12541340
+vt 0.00019246 0.12541224
+vt 0.00020991 0.04620541
+vt 0.02027132 0.04088002
+vt 0.00021346 0.02970424
+vt 0.00021999 0.00000000
+vt 0.66788834 0.00000117
+vt 0.13127175 0.23762493
+vt 0.10883361 0.24092472
+vt 0.10883361 0.23432408
+vt 0.07562248 0.17821857
+vt 0.09222800 0.19802049
+vt 0.10329847 0.18481921
+vt 0.09776323 0.16831763
+vt 0.06455200 0.15841666
+vt 0.08115762 0.16831763
+vt 0.08669276 0.14851567
+vt 0.07562248 0.14521538
+vt 0.07008724 0.13531439
+vt 0.07562248 0.12211312
+vt 0.05348171 0.12871376
+vt 0.04794648 0.11221213
+vt 0.04794648 0.12211312
+vt 0.05901686 0.12211312
+vt 0.06455200 0.10561149
+vt 0.03687600 0.10561149
+vt 0.04794648 0.10561149
+vt 0.05348171 0.08910987
+vt 0.03134086 0.09571051
+vt 0.04241124 0.09901085
+vt 0.77859223 0.09901085
+vt 0.79519784 0.10231114
+vt 0.78966260 0.09571051
+vt 0.02027048 0.07920894
+vt 0.02580572 0.08910987
+vt 0.04794648 0.08250923
+vt 0.04241124 0.07260825
+vt 0.85608494 0.07920894
+vt 1.00000000 0.07590859
+vt 1.00000000 0.00000117
+vt 0.98892963 0.00660186
+vt 0.96678889 0.00000117
+vt 0.94464809 0.00000117
+vt 0.94464809 0.00660186
+vt 0.91143686 0.00000117
+vt 0.80073297 0.00000117
+vt 0.80073297 0.00660186
+vt 0.77859223 0.00990215
+vt 0.76752186 0.00990215
+vt 0.76752186 0.00000117
+vt 0.75091624 0.00000117
+vt 0.73431063 0.01320250
+vt 0.72877544 0.00330152
+vt 0.70109946 0.00000117
+vt 0.70109946 0.00660186
+vt 0.67342353 0.01320250
+vt 0.67342335 0.04086222
+vt 0.69002908 0.00990215
+vt 0.70109946 0.00990215
+vt 0.71217042 0.04086116
+vt 0.75645077 0.04085993
+vt 0.75645143 0.06930795
+vt 0.76752186 0.07920894
+vt 0.78966260 0.07920894
+vt 0.79519784 0.07260825
+vt 0.81180334 0.07920894
+vt 0.03687600 0.05940697
+vt 0.03687600 0.06600761
+vt 0.02027048 0.06600761
+vt 0.02580572 0.07260825
+vt 0.00020403 0.07260708
+vt 0.00020627 0.06270615
+vt 0.00919973 0.04088036
+vt 0.00020767 0.05610640
+vt 0.02027048 0.05610668
+vt 0.78412724 0.04085921
+vt 0.78412735 0.05280633
+vt 0.79519784 0.05280633
+vt 0.79519767 0.04085888
+vt 0.97785926 0.02640378
+vt 0.97786009 0.04085393
+vt 0.98893046 0.04085359
+vt 0.98892963 0.02310343
+vt 0.77305704 0.01650279
+vt 0.79519784 0.02310343
+vt 0.79519784 0.00990215
+vt 0.69002992 0.04086177
+vt 0.02026983 0.04088002
+f 4/4 2/2 3/3
+f 4/4 5/5 6/6
+f 6/6 7/7 8/8
+f 2/2 4/4 1/1
+f 1/1 6/6 8/8
+f 6/6 1/1 4/4
+f 23/23 25/25 24/24
+f 23/23 22/22 21/21
+f 9/9 20/20 19/19
+f 19/19 18/18 17/17
+f 17/17 16/16 15/15
+f 15/15 14/14 13/13
+f 13/13 12/12 11/11
+f 19/19 10/10 9/9
+f 25/25 23/23 9/9
+f 20/20 9/9 21/21
+f 17/17 15/15 13/13
+f 10/10 13/13 11/11
+f 21/21 9/9 23/23
+f 10/10 17/17 13/13
+f 10/10 19/19 17/17
+f 30/30 27/27 28/28
+f 28/28 29/29 30/30
+f 30/30 31/31 32/32
+f 32/32 33/33 34/34
+f 34/34 35/35 36/36
+f 36/36 37/37 38/38
+f 41/41 39/39 40/40
+f 44/44 42/42 43/43
+f 41/41 44/44 45/45
+f 45/45 46/46 47/47
+f 47/47 48/48 49/49
+f 27/27 30/30 26/26
+f 26/26 30/30 32/32
+f 45/45 36/36 38/38
+f 39/39 41/41 38/38
+f 44/44 41/41 42/42
+f 26/26 32/32 49/49
+f 49/49 32/32 34/34
+f 45/45 38/38 41/41
+f 36/36 45/45 47/47
+f 49/49 34/34 47/47
+f 36/36 47/47 34/34
+f 51/51 78/78 77/77
+f 77/77 76/76 75/75
+f 105/105 74/74 73/73
+f 97/97 73/73 72/72
+f 107/107 106/106 100/100
+f 96/96 98/98 93/93
+f 95/95 94/94 92/92
+f 93/93 98/98 97/97
+f 97/97 101/101 100/100
+f 73/73 106/106 105/105
+f 72/72 71/71 86/86
+f 87/87 86/86 71/71
+f 71/71 70/70 82/82
+f 83/83 82/82 70/70
+f 69/69 68/68 67/67
+f 65/65 64/64 63/63
+f 63/63 62/62 61/61
+f 61/61 60/60 59/59
+f 56/56 58/58 57/57
+f 56/56 55/55 54/54
+f 54/54 53/53 52/52
+f 78/78 51/51 50/50
+f 108/108 74/74 105/105
+f 107/107 100/100 99/99
+f 98/98 96/96 99/99
+f 95/95 92/92 91/91
+f 72/72 93/93 97/97
+f 73/73 100/100 106/106
+f 92/92 72/72 86/86
+f 87/87 71/71 82/82
+f 83/83 70/70 69/69
+f 83/83 67/67 66/66
+f 63/63 61/61 59/59
+f 63/63 58/58 56/56
+f 54/54 52/52 51/51
+f 51/51 77/77 75/75
+f 74/74 108/108 75/75
+f 108/108 107/107 99/99
+f 96/96 95/95 91/91
+f 73/73 97/97 100/100
+f 87/87 82/82 85/85
+f 67/67 83/83 69/69
+f 58/58 63/63 59/59
+f 51/51 56/56 54/54
+f 108/108 51/51 75/75
+f 51/51 91/91 65/65
+f 93/93 72/72 94/94
+f 88/88 87/87 85/85
+f 84/84 83/83 66/66
+f 51/51 63/63 56/56
+f 99/99 51/51 108/108
+f 72/72 92/92 94/94
+f 84/84 66/66 65/65
+f 63/63 51/51 65/65
+f 90/90 92/92 86/86
+f 85/85 84/84 65/65
+f 96/96 51/51 99/99
+f 89/89 90/90 86/86
+f 88/88 85/85 65/65
+f 91/91 51/51 96/96
+f 88/88 90/90 89/89
+f 88/88 65/65 91/91
+f 90/90 88/88 91/91
+f 79/79 81/81 80/80
+f 102/102 103/103 104/104
+f 123/123 131/131 132/132
+f 136/136 134/134 135/135
+f 156/156 155/155 147/147
+f 132/132 147/147 155/155
+f 133/133 148/148 132/132
+f 149/149 137/137 109/109
+f 154/154 111/111 112/112
+f 112/112 113/113 151/151
+f 115/115 151/151 113/113
+f 113/113 114/114 115/115
+f 118/118 116/116 117/117
+f 120/120 121/121 122/122
+f 126/126 124/124 125/125
+f 127/127 128/128 158/158
+f 134/134 136/136 133/133
+f 156/156 147/147 150/150
+f 147/147 132/132 148/148
+f 152/152 109/109 110/110
+f 112/112 151/151 154/154
+f 151/151 115/115 152/152
+f 156/156 116/116 118/118
+f 120/120 122/122 123/123
+f 130/130 124/124 126/126
+f 127/127 158/158 129/129
+f 109/109 150/150 149/149
+f 133/133 136/136 148/148
+f 153/153 111/111 154/154
+f 116/116 152/152 115/115
+f 155/155 120/120 123/123
+f 126/126 127/127 129/129
+f 148/148 136/136 149/149
+f 111/111 153/153 110/110
+f 126/126 129/129 130/130
+f 137/137 149/149 136/136
+f 110/110 153/153 152/152
+f 124/124 130/130 123/123
+f 116/116 150/150 109/109
+f 156/156 118/118 157/157
+f 131/131 123/123 130/130
+f 116/116 109/109 152/152
+f 123/123 132/132 155/155
+f 150/150 116/116 156/156
+f 120/120 155/155 119/119
+f 119/119 157/157 118/118
+f 157/157 119/119 155/155
+f 140/140 143/143 142/142
+f 142/142 141/141 140/140
+f 140/140 139/139 138/138
+f 143/143 140/140 138/138
+f 144/144 145/145 146/146
+f 146/146 159/159 144/144
+
diff --git a/ai_002_003/background_mesh/24.obj b/ai_002_003/background_mesh/24.obj
new file mode 100644
index 0000000000000000000000000000000000000000..c24f6e19cca4c46317fa6ce74c4ca5d1d1ad4b95
--- /dev/null
+++ b/ai_002_003/background_mesh/24.obj
@@ -0,0 +1,14 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -2.18647075 0.89682931 -4.82785702
+v -2.18646836 0.89683121 -5.14214325
+v -2.18644381 0.59285724 -5.14214325
+v -2.18644619 0.59285724 -4.82785702
+vt 0.00000000 0.99999374
+vt 1.00000000 1.00000000
+vt 1.00000000 0.00000000
+vt 0.00000000 0.00000000
+f 1/1 2/2 3/3
+f 3/3 4/4 1/1
+
diff --git a/ai_002_003/background_mesh/25.obj b/ai_002_003/background_mesh/25.obj
new file mode 100644
index 0000000000000000000000000000000000000000..2923f88fe3193a50befb49ae39716dff43401c95
--- /dev/null
+++ b/ai_002_003/background_mesh/25.obj
@@ -0,0 +1,35 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -1.97725832 1.19670546 -4.71973658
+v -1.97725832 1.19670475 -4.60605240
+v -2.52155709 1.19664586 -4.60605240
+v -2.54210544 1.19664407 -4.67410803
+v -2.52155709 1.19664669 -4.73394728
+v -2.35736823 1.19666433 -4.73394728
+v -2.35736871 1.19666409 -4.67410660
+v -2.34315777 1.19666588 -4.73394728
+v -2.25789452 1.19667518 -4.73394728
+v -2.25789499 1.19667482 -4.67410564
+v -2.18649554 1.19668293 -4.73394775
+vt 0.11111567 1.00000000
+vt 1.00000000 1.00000000
+vt 1.00000000 0.03637859
+vt 0.46788037 0.00000000
+vt 0.00000373 0.03637859
+vt 0.00000373 0.32705700
+vt 0.46789154 0.32705617
+vt 0.00000373 0.35221508
+vt 0.00000373 0.50316435
+vt 0.46789899 0.50316352
+vt 0.00000000 0.62956840
+f 10/10 2/2 3/3
+f 7/7 4/4 5/5
+f 5/5 6/6 7/7
+f 10/10 8/8 9/9
+f 2/2 11/11 1/1
+f 4/4 7/7 3/3
+f 8/8 10/10 7/7
+f 11/11 2/2 10/10
+f 3/3 7/7 10/10
+
diff --git a/ai_002_003/background_mesh/26.obj b/ai_002_003/background_mesh/26.obj
new file mode 100644
index 0000000000000000000000000000000000000000..e374af43b8db030b241be63d201e1c8b703c397f
--- /dev/null
+++ b/ai_002_003/background_mesh/26.obj
@@ -0,0 +1,14 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -2.18646836 0.89683121 -5.14400005
+v -2.18647075 0.89682937 -4.83599949
+v -2.34199977 0.89681250 -4.83599997
+v -2.34199977 0.89681441 -5.14400005
+vt 0.00000000 1.00000000
+vt 1.00000000 0.99998468
+vt 0.99999845 0.00000000
+vt 0.00000000 0.00000000
+f 4/4 2/2 3/3
+f 2/2 4/4 1/1
+
diff --git a/ai_002_003/background_mesh/27.obj b/ai_002_003/background_mesh/27.obj
new file mode 100644
index 0000000000000000000000000000000000000000..c25dcd458439bd3d46c3aa301573efc247fbeb16
--- /dev/null
+++ b/ai_002_003/background_mesh/27.obj
@@ -0,0 +1,267 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 3.91206717 6.69273758 -0.30145252
+v 3.90489936 6.69276333 -4.66394997
+v -4.43812609 6.69186020 -4.66394949
+v -4.44590950 6.69183969 -1.39865923
+v -4.43812513 6.69183874 -1.07350826
+v -4.41020060 6.69184160 -1.11590302
+v -4.36986446 6.69184589 -1.13005066
+v -4.36986542 6.69186640 -4.48018694
+v -4.31484842 6.69187260 -4.48018694
+v -4.31484842 6.69187307 -4.52259350
+v -4.36986542 6.69186640 -4.52259350
+v -4.36986542 6.69186735 -4.63567829
+v -4.28657722 6.69187641 -4.60740709
+v -4.23003531 6.69188261 -4.62154293
+v -4.23003531 6.69188213 -4.59327173
+v -4.18762827 6.69188738 -4.60740709
+v -4.18762827 6.69188690 -4.57913589
+v -4.06040812 6.69190073 -4.55086470
+v -4.06040812 6.69190073 -4.52259350
+v -3.96145892 6.69191122 -4.52259350
+v -3.96145892 6.69191074 -4.49432230
+v -3.89078069 6.69191837 -4.48018694
+v -3.86250997 6.69192123 -4.43777990
+v -3.80596757 6.69192743 -4.45191574
+v -3.69288278 6.69193935 -4.40950871
+v -3.62220454 6.69194698 -4.38123751
+v -3.62220454 6.69194651 -4.35296631
+v -3.50911999 6.69195890 -4.32469511
+v -3.50911999 6.69195890 -4.29642391
+v -3.32535720 6.69197798 -4.25401735
+v -3.16986561 6.69199467 -4.16920376
+v -3.11332345 6.69200087 -4.18333912
+v -2.94369626 6.69201851 -4.08439016
+v -2.80234027 6.69203377 -4.05611897
+v -2.70339108 6.69204426 -3.98544073
+v -2.52227807 6.69206285 -3.94303417
+v -2.52227807 6.69206285 -3.91476297
+v -2.18694639 6.69209862 -3.87235546
+v -2.18694663 6.69209862 -3.84408498
+v -1.97797894 6.69212103 -3.82994938
+v -1.97797894 6.69212103 -3.80167818
+v -1.31810272 6.69219208 -3.70272899
+v -1.28983152 6.69219494 -3.67445779
+v -1.01208544 6.69222498 -3.64618659
+v -0.99298429 6.69220686 -0.30136904
+v 3.82725358 6.69274473 -2.95354247
+v 3.81311774 6.69272757 -0.38086414
+v 1.72105014 6.69250107 -0.38086414
+v 1.70691454 6.69251728 -3.30693245
+v 1.91894829 6.69254017 -3.30693245
+v 1.91894829 6.69254065 -3.33520365
+v 2.35715175 6.69258785 -3.36347485
+v 2.37128735 6.69258976 -3.39174604
+v 3.36077881 6.69269753 -3.50483060
+v 3.50213480 6.69270706 -2.61428809
+v 3.67176199 6.69272566 -2.61428809
+v 3.62935519 6.69272327 -2.99594927
+v 3.82725358 6.69274521 -3.02422047
+v 3.27596545 6.69266939 -0.36672854
+v 3.31837225 6.69267416 -0.35259295
+v 3.24769425 6.69266605 -0.35259295
+v 3.07806706 6.69264793 -0.36672854
+v 3.14874506 6.69265556 -0.35259295
+v 3.03566027 6.69264317 -0.35259295
+v 2.95084667 6.69263411 -0.35259295
+v 3.02152467 6.69264174 -0.36672854
+v 2.90843987 6.69262934 -0.36672854
+v 1.73518574 6.69250250 -0.35259295
+v 1.76345694 6.69250584 -0.36672854
+v 1.70691454 6.69249964 -0.36672854
+v 0.94359231 6.69241667 -0.39499974
+v 1.66450775 6.69249487 -0.39499974
+v 1.66450775 6.69251251 -3.29279661
+v 1.28284669 6.69247055 -3.23625422
+v 1.02840590 6.69244337 -3.23625422
+v 0.75982958 6.69241476 -3.30693245
+v 0.60433805 6.69239759 -3.30693245
+v 0.60433805 6.69239807 -3.33520365
+v 0.53366011 6.69239044 -3.34933901
+v 0.29335499 6.69236469 -3.36347485
+v 0.18758295 6.69235277 -3.42001748
+v -0.45583150 6.69228458 -3.51896620
+v -0.45583150 6.69226551 -0.39499974
+v -4.28657675 6.69187641 -4.67427444
+v -4.30885744 6.69187403 -4.67427444
+vt 0.00001914 1.00000000
+vt 0.99763900 0.99914241
+vt 0.99763876 0.00093126
+vt 0.25092933 0.00000000
+vt 0.17657351 0.00093137
+vt 0.18626837 0.00427243
+vt 0.18950367 0.00909850
+vt 0.95561576 0.00909838
+vt 0.95561576 0.01568096
+vt 0.96531349 0.01568096
+vt 0.96531349 0.00909838
+vt 0.99117380 0.00909838
+vt 0.98470861 0.01906350
+vt 0.98794132 0.02582852
+vt 0.98147613 0.02582852
+vt 0.98470861 0.03090236
+vt 0.97824365 0.03090236
+vt 0.97177845 0.04612377
+vt 0.96531349 0.04612377
+vt 0.96531349 0.05796269
+vt 0.95884830 0.05796269
+vt 0.95561576 0.06641907
+vt 0.94591808 0.06980155
+vt 0.94915080 0.07656664
+vt 0.93945312 0.09009680
+vt 0.93298793 0.09855318
+vt 0.92652297 0.09855318
+vt 0.92005777 0.11208329
+vt 0.91359276 0.11208329
+vt 0.90389520 0.13406983
+vt 0.88449991 0.15267380
+vt 0.88773239 0.15943885
+vt 0.86510468 0.17973408
+vt 0.85863960 0.19664679
+vt 0.84247684 0.20848568
+vt 0.83277929 0.23015517
+vt 0.82631421 0.23015517
+vt 0.81661642 0.27027631
+vt 0.81015146 0.27027631
+vt 0.80691892 0.29527849
+vt 0.80045384 0.29527849
+vt 0.77782607 0.37423015
+vt 0.77136099 0.37761268
+vt 0.76489592 0.41084394
+vt 0.00000000 0.41312930
+vt 0.60650140 0.98985231
+vt 0.01817903 0.98816109
+vt 0.01817903 0.73785317
+vt 0.68731493 0.73616195
+vt 0.68731493 0.76153088
+vt 0.69378006 0.76153088
+vt 0.70024514 0.81396031
+vt 0.70671022 0.81565154
+vt 0.73257047 0.93404043
+vt 0.52892041 0.95095313
+vt 0.52892041 0.97124845
+vt 0.61619902 0.96617460
+vt 0.62266409 0.98985231
+vt 0.01494649 0.92389286
+vt 0.01171395 0.92896664
+vt 0.01171395 0.92051029
+vt 0.01494649 0.90021509
+vt 0.01171395 0.90867138
+vt 0.01171395 0.89514124
+vt 0.01171395 0.88499361
+vt 0.01494649 0.89345002
+vt 0.01494649 0.87991983
+vt 0.01171395 0.73954439
+vt 0.01494649 0.74292701
+vt 0.01494649 0.73616195
+vt 0.02141157 0.64483333
+vt 0.02141157 0.73108810
+vt 0.68408233 0.73108810
+vt 0.67115217 0.68542379
+vt 0.67115217 0.65498096
+vt 0.68731493 0.62284678
+vt 0.68731493 0.60424286
+vt 0.69378006 0.60424286
+vt 0.69701254 0.59578645
+vt 0.70024514 0.56703490
+vt 0.71317536 0.55437964
+vt 0.73580301 0.47739759
+vt 0.02141157 0.47739759
+vt 1.00000000 0.01906355
+vt 1.00000000 0.01639776
+f 67/67 68/68 65/65
+f 66/66 65/65 64/64
+f 59/59 63/63 61/61
+f 72/72 70/70 48/48
+f 81/81 80/80 79/79
+f 78/78 77/77 76/76
+f 76/76 75/75 74/74
+f 45/45 71/71 83/83
+f 49/49 50/50 51/51
+f 51/51 52/52 53/53
+f 57/57 55/55 56/56
+f 67/67 47/47 48/48
+f 65/65 68/68 1/1
+f 84/84 13/13 14/14
+f 14/14 15/15 16/16
+f 16/16 17/17 18/18
+f 18/18 19/19 20/20
+f 20/20 21/21 22/22
+f 22/22 23/23 24/24
+f 26/26 27/27 28/28
+f 28/28 29/29 30/30
+f 30/30 31/31 32/32
+f 32/32 33/33 34/34
+f 34/34 35/35 36/36
+f 36/36 37/37 38/38
+f 38/38 39/39 40/40
+f 40/40 41/41 42/42
+f 42/42 43/43 44/44
+f 45/45 1/1 68/68
+f 68/68 67/67 69/69
+f 66/66 64/64 62/62
+f 63/63 59/59 62/62
+f 74/74 49/49 76/76
+f 49/49 74/74 73/73
+f 70/70 72/72 71/71
+f 55/55 57/57 54/54
+f 47/47 59/59 60/60
+f 64/64 65/65 1/1
+f 16/16 84/84 14/14
+f 16/16 18/18 20/20
+f 20/20 22/22 24/24
+f 26/26 28/28 30/30
+f 38/38 34/34 36/36
+f 34/34 38/38 40/40
+f 2/2 42/42 44/44
+f 71/71 68/68 70/70
+f 47/47 62/62 59/59
+f 76/76 49/49 78/78
+f 73/73 72/72 48/48
+f 54/54 57/57 58/58
+f 63/63 64/64 1/1
+f 20/20 84/84 16/16
+f 20/20 24/24 25/25
+f 26/26 30/30 32/32
+f 34/34 40/40 32/32
+f 47/47 66/66 62/62
+f 2/2 78/78 49/49
+f 73/73 48/48 49/49
+f 61/61 63/63 1/1
+f 84/84 20/20 2/2
+f 2/2 25/25 26/26
+f 2/2 40/40 42/42
+f 47/47 67/67 66/66
+f 2/2 49/49 51/51
+f 60/60 61/61 1/1
+f 25/25 2/2 20/20
+f 40/40 2/2 32/32
+f 48/48 69/69 67/67
+f 78/78 2/2 79/79
+f 47/47 60/60 1/1
+f 32/32 2/2 26/26
+f 48/48 70/70 69/69
+f 2/2 51/51 53/53
+f 46/46 47/47 1/1
+f 71/71 45/45 68/68
+f 79/79 2/2 81/81
+f 2/2 46/46 1/1
+f 82/82 45/45 83/83
+f 2/2 53/53 54/54
+f 46/46 2/2 58/58
+f 45/45 82/82 44/44
+f 54/54 58/58 2/2
+f 2/2 44/44 82/82
+f 81/81 2/2 82/82
+f 6/6 4/4 5/5
+f 4/4 7/7 8/8
+f 8/8 9/9 10/10
+f 12/12 85/85 3/3
+f 8/8 10/10 11/11
+f 11/11 12/12 3/3
+f 7/7 4/4 6/6
+f 3/3 8/8 11/11
+f 8/8 3/3 4/4
+
diff --git a/ai_002_003/background_mesh/28.obj b/ai_002_003/background_mesh/28.obj
new file mode 100644
index 0000000000000000000000000000000000000000..3015d7eda0c53288ae500f7cd2f5988f2fc9194a
--- /dev/null
+++ b/ai_002_003/background_mesh/28.obj
@@ -0,0 +1,767 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -0.89196700 -0.31178835 1.00206733
+v -0.89203042 -0.30445194 -0.30127725
+v -0.89203429 -0.36099172 -0.30127650
+v -0.89203990 -0.37512708 -0.39729965
+v -0.89203626 -0.31179017 -0.41143465
+v -0.89218807 -0.31179413 -3.50700426
+v -0.89221108 -0.62955737 -3.53527427
+v -0.89221245 -0.62955737 -3.56354427
+v -0.89229429 -1.68568563 -3.76143456
+v -0.89235806 -1.68568730 -5.06185627
+v -0.89237398 -1.68568766 -5.38696194
+v -0.89237362 -1.66141403 -5.41150331
+v -0.89235723 -1.42111909 -5.41150665
+v -0.89235193 -1.38194513 -5.35869169
+v -0.89233083 -1.12428319 -5.28801680
+v -0.89232814 -1.12428391 -5.23223591
+v -0.89230400 -0.77090693 -5.23223019
+v -0.89230114 -0.77090764 -5.17493677
+v -0.89227647 -0.45993710 -5.10426140
+v -0.89227378 -0.45993590 -5.04743814
+v -0.89226508 -0.33272147 -5.04744196
+v -0.89227217 -0.30445194 -5.23222256
+v -0.89229620 -0.31179696 -5.71206713
+v -0.89239264 -1.71447325 -5.72526741
+v -0.89239436 -1.77438796 -5.67690992
+v -0.89239889 -1.81689918 -5.71206713
+v -0.89263821 -5.32238436 -5.71206713
+v -0.89249957 -5.32238436 -2.88506317
+v -0.89249533 -5.29421377 -2.83602524
+v -0.89249635 -5.32875538 -2.80814648
+v -0.89244759 -5.32238436 -1.82493675
+v -0.89244711 -5.34734249 -1.77987933
+v -0.89244115 -5.29207611 -1.73527312
+v -0.89244068 -5.32238436 -1.68358660
+v -0.89230901 -5.32238436 1.00206733
+v -0.89208126 -1.98651946 1.00206733
+v -0.89208013 -1.94405007 0.96696126
+v -0.89207089 -1.85845733 1.03604436
+v -0.89206970 -1.81689918 1.00206733
+v -0.89207238 -0.98293293 -0.21354437
+v -0.89207864 -1.01120365 -0.30126783
+v -0.89207429 -1.01120305 -0.21354437
+v -0.89219207 -1.01120305 -2.61649799
+v -0.89218974 -0.99706793 -2.58822775
+v -0.89215368 -1.06774306 -1.75426161
+v -0.89219940 -1.05360794 -2.70561314
+v -0.89208490 -1.16668820 -0.21354437
+v -0.89208174 -1.11014819 -0.22767949
+v -0.89208728 -1.18082321 -0.24181437
+v -0.89220905 -1.19495881 -2.70561123
+v -0.89221096 -1.22322893 -2.70561075
+v -0.89214331 -1.38194287 -1.10405064
+v -0.89222544 -1.43525422 -2.70560813
+v -0.89211816 -1.63314390 -0.24181437
+v -0.89212108 -1.63314450 -0.30125952
+v -0.89212173 -1.68568110 -0.24181437
+v -0.89223993 -1.64727902 -2.70560527
+v -0.89224958 -1.78862965 -2.70560336
+v -0.89225435 -1.85930407 -2.70560241
+v -0.89225537 -1.87343991 -2.70560217
+v -0.89216596 -1.95824933 -0.76481020
+v -0.89216340 -1.92997932 -0.75067520
+v -0.89226693 -2.04305983 -2.70559978
+v -0.89226979 -2.08546519 -2.70559931
+v -0.89218974 -2.18440962 -0.93443048
+v -0.89213455 -2.17027617 0.17235790
+v -0.89213747 -2.17027473 0.11156106
+v -0.89214414 -2.22681475 0.05502104
+v -0.89213645 -2.19854689 0.17235667
+v -0.89214128 -2.26922131 0.17235355
+v -0.89213938 -2.24095201 0.17235479
+v -0.89214438 -2.24094987 0.06915593
+v -0.89214325 -2.25508475 0.11156106
+v -0.89214587 -2.28335476 0.09742618
+v -0.89214653 -2.28335476 0.08329105
+v -0.89214534 -2.25508475 0.06915593
+v -0.89214873 -2.25508308 0.00198642
+v -0.89215505 -2.25508475 -0.12873435
+v -0.89215970 -2.28335476 -0.18527436
+v -0.89215696 -2.28335476 -0.12873435
+v -0.89215356 -2.32575870 0.00198331
+v -0.89215159 -2.29748821 0.00198455
+v -0.89214921 -2.31162500 0.06915593
+v -0.89239240 -2.31162453 -4.89113474
+v -0.89239597 -2.31162500 -4.96291113
+v -0.89239401 -2.28335476 -4.96291113
+v -0.89239663 -2.31162500 -4.97704649
+v -0.89239919 -2.29749107 -5.04738760
+v -0.89240116 -2.32576108 -5.04738665
+v -0.89239788 -2.33989501 -4.96291113
+v -0.89239436 -2.33989453 -4.89113426
+v -0.89216548 -2.43884015 -0.08632922
+v -0.89216030 -2.42470717 0.00197895
+v -0.89216495 -2.41057014 -0.11459923
+v -0.89215839 -2.39643717 0.00198019
+v -0.89215547 -2.35403204 0.00198206
+v -0.89216000 -2.36816502 -0.07219410
+v -0.89216191 -2.39643502 -0.07219410
+v -0.89217550 -2.52365017 -0.17113924
+v -0.89217854 -2.53778529 -0.21354437
+v -0.89217722 -2.58019018 -0.12873435
+v -0.89217299 -2.53778529 -0.10046411
+v -0.89217007 -2.49538016 -0.10046411
+v -0.89217144 -2.49538016 -0.12873435
+v -0.89216799 -2.49538016 -0.05805922
+v -0.89216512 -2.45297503 -0.05805922
+v -0.89216650 -2.45297503 -0.08632922
+v -0.89216608 -2.50951552 0.00197521
+v -0.89216322 -2.46711040 0.00197708
+v -0.89216512 -2.49538231 0.00197584
+v -0.89229488 -2.45297575 -2.70559454
+v -0.89229685 -2.48124576 -2.70559406
+v -0.89218497 -2.62259531 -0.22767949
+v -0.89218378 -2.59432530 -0.24181437
+v -0.89218670 -2.59432602 -0.30124667
+v -0.89218867 -2.62259603 -0.30124629
+v -0.89217997 -2.65086532 -0.08632922
+v -0.89217877 -2.62259531 -0.10046411
+v -0.89217734 -2.62259531 -0.07219410
+v -0.89217860 -2.65086532 -0.05805922
+v -0.89219928 -2.77807999 -0.30124420
+v -0.89219731 -2.74980998 -0.30124459
+v -0.89219213 -2.77808046 -0.15700436
+v -0.89219350 -2.77808046 -0.18527436
+v -0.89219475 -2.80635071 -0.17113924
+v -0.89242399 -2.80710840 -4.84339142
+v -0.89241922 -2.76394558 -4.80742598
+v -0.89242333 -2.78473258 -4.86145115
+v -0.89220315 -2.83462048 -0.30124345
+v -0.89220023 -2.79221511 -0.30124402
+v -0.89220804 -2.84875584 -0.38316464
+v -0.89220113 -2.91943073 -0.14286923
+v -0.89219779 -2.89116073 -0.11459923
+v -0.89219213 -2.89116287 0.00195840
+v -0.89221966 -2.94770098 -0.48210979
+v -0.89219779 -3.03503275 0.08641529
+v -0.89220083 -3.01837420 0.00195280
+v -0.89219850 -3.04194140 0.08083940
+v -0.89220035 -3.05905962 0.06702292
+v -0.89222991 -3.04664612 -0.55278492
+v -0.89222723 -3.01837587 -0.53864980
+v -0.89221239 -3.07491589 -0.15700436
+v -0.89220983 -3.04664612 -0.14286923
+v -0.89221257 -3.04664612 -0.19940925
+v -0.89223540 -3.11732101 -0.56691992
+v -0.89223969 -3.15972614 -0.59518993
+v -0.89221573 -3.20156956 -0.04799867
+v -0.89221799 -3.18799615 -0.11459923
+v -0.89222276 -3.21626616 -0.17113924
+v -0.89222020 -3.24301910 -0.08145320
+v -0.89225513 -3.31521130 -0.69413507
+v -0.89224458 -3.48472762 -0.24181581
+v -0.89224261 -3.45070076 -0.24907565
+v -0.89224499 -3.47307682 -0.26713562
+v -0.89235890 -3.48450494 -2.57408881
+v -0.89236271 -3.54137182 -2.57409286
+v -0.89225233 -3.55550671 -0.30123383
+v -0.89225185 -3.53659868 -0.31840467
+v -0.89236516 -3.80993700 -2.24898744
+v -0.89231992 -3.90888214 -1.18886077
+v -0.89228624 -3.78166699 -0.68000007
+v -0.89237952 -3.83820724 -2.50341773
+v -0.89234823 -3.86647725 -1.82493675
+v -0.89234418 -3.83820724 -1.78253174
+v -0.89234698 -3.83820724 -1.83907175
+v -0.89244181 -4.98350763 -2.17831159
+v -0.89243793 -4.92660379 -2.17831230
+v -0.89244002 -4.92660379 -2.22071743
+v -0.89244390 -4.98350859 -2.22071671
+v -0.89240879 -4.12090826 -2.70557213
+v -0.89230603 -3.97955751 -0.80721521
+v -0.89231944 -3.99369240 -1.06164563
+v -0.89232349 -4.02196217 -1.10405064
+v -0.89232153 -3.99369240 -1.10405064
+v -0.89232737 -4.00782728 -1.20299578
+v -0.89232653 -3.96542239 -1.24540091
+v -0.89233208 -3.96542239 -1.35848105
+v -0.89233494 -4.00782728 -1.35848105
+v -0.89234257 -4.00782728 -1.51396632
+v -0.89234155 -3.95128727 -1.57050633
+v -0.89235574 -4.00782728 -1.78253174
+v -0.89236754 -4.00782728 -2.02282715
+v -0.89236701 -3.97955751 -2.05109715
+v -0.89237309 -4.00782728 -2.13590717
+v -0.89237905 -3.99369240 -2.27725744
+v -0.89238197 -4.03609753 -2.27725744
+v -0.89238340 -4.03609753 -2.30552745
+v -0.89238107 -3.95128727 -2.37620258
+v -0.89238489 -4.00782728 -2.37620258
+v -0.89238697 -4.00782728 -2.41860771
+v -0.89238411 -3.96542239 -2.41860771
+v -0.89238548 -3.96542239 -2.44687772
+v -0.89238864 -4.02196217 -2.43274260
+v -0.89239001 -4.02196217 -2.46101260
+v -0.89238709 -3.97955751 -2.46101260
+v -0.89239639 -3.99369240 -2.63063288
+v -0.89239907 -4.02196217 -2.64476800
+v -0.89240104 -4.00782728 -2.70557356
+v -0.89246571 -4.95487452 -2.70556092
+v -0.89246678 -4.98351574 -2.68717265
+v -0.89244527 -4.98350859 -2.24898696
+v -0.89244115 -4.91246891 -2.26312232
+v -0.89243501 -4.88419867 -2.17831230
+v -0.89241755 -4.98350000 -1.68358636
+v -0.89241236 -4.99878502 -1.55637157
+v -0.89241362 -5.03634167 -1.52886605
+v -0.89240891 -4.99878407 -1.48569667
+v -0.89240164 -4.98349524 -1.35848105
+v -0.89235276 -4.99876642 -0.34075952
+v -0.89234883 -4.96900892 -0.30121493
+v -0.89228225 -3.99369192 -0.30122796
+v -0.89229548 -4.00782728 -0.55278492
+v -0.89229780 -3.96247673 -0.66213632
+v -0.89230448 -4.02465153 -0.71231842
+v -0.89230490 -3.99369240 -0.76481020
+v -0.89230794 -4.00782728 -0.80721521
+v -0.89229965 -3.97989988 -0.67619872
+v -0.89229482 -3.93514824 -0.64007902
+v -0.89230138 -3.95128727 -0.75067520
+v -0.89242804 -4.40360832 -2.70556831
+v -0.89243001 -4.43187857 -2.70556808
+v -0.89228874 -4.62976837 0.45080161
+v -0.89228916 -4.61563301 0.42253137
+v -0.89229107 -4.64390326 0.42253137
+v -0.89244807 -4.98350954 -2.30552673
+v -0.89245081 -4.98351049 -2.36206698
+v -0.89245635 -4.98351240 -2.47514701
+v -0.89245915 -4.98351336 -2.53168702
+v -0.89231765 -5.05381870 0.45080161
+v -0.89231396 -4.99875402 0.45080113
+v -0.89231539 -4.99875450 0.42253089
+v -0.89231902 -5.05381870 0.42253137
+v -0.89229947 -3.97824860 -0.67486620
+v -0.89244086 -4.99879408 -2.13652873
+v -0.89244807 -4.98350954 -2.30552673
+v -0.89245081 -4.98351049 -2.36206698
+v -0.89245635 -4.98351240 -2.47514701
+v -0.89245915 -4.98351336 -2.53168702
+v -0.89243001 -4.43187857 -2.70556808
+v -0.89242804 -4.40360832 -2.70556831
+v -0.89241028 -4.14312220 -2.70557189
+v -0.89240879 -4.12090826 -2.70557213
+v -0.89225054 -1.80276668 -2.70560312
+v -0.89220226 -1.09601319 -2.70561266
+vt 0.00502521 0.99854517
+vt 0.19779027 1.00000000
+vt 0.19779015 0.98878825
+vt 0.21199201 0.98598522
+vt 0.21408258 0.99854475
+vt 0.67191827 0.99854404
+vt 0.67609942 0.93553185
+vt 0.68028051 0.93553185
+vt 0.70954853 0.72610277
+vt 0.90188128 0.72610247
+vt 0.94996452 0.72610241
+vt 0.95359427 0.73091578
+vt 0.95359468 0.77856600
+vt 0.94578344 0.78633422
+vt 0.93533057 0.83742827
+vt 0.92708051 0.83742821
+vt 0.92707962 0.90750247
+vt 0.91860598 0.90750235
+vt 0.90815300 0.96916747
+vt 0.89974892 0.96916765
+vt 0.89974946 0.99439412
+vt 0.92707855 1.00000000
+vt 0.99804777 0.99854344
+vt 1.00000000 0.72039425
+vt 0.99284798 0.70851320
+vt 0.99804777 0.70008326
+vt 0.99804777 0.00494917
+vt 0.57993299 0.00494917
+vt 0.57268023 0.01053537
+vt 0.56855696 0.00368581
+vt 0.42313996 0.00494917
+vt 0.41647595 0.00000000
+vt 0.40987867 0.01095927
+vt 0.40223423 0.00494917
+vt 0.00502521 0.00494917
+vt 0.00502521 0.66644776
+vt 0.01021739 0.67486936
+vt 0.00000000 0.69184232
+vt 0.00502521 0.70008326
+vt 0.18481454 0.86545789
+vt 0.19778888 0.85985184
+vt 0.18481454 0.85985202
+vt 0.54021209 0.85985202
+vt 0.53603095 0.86265498
+vt 0.41268709 0.84864008
+vt 0.55339229 0.85144311
+vt 0.18481454 0.82901949
+vt 0.18690513 0.84023124
+vt 0.18899569 0.82621646
+vt 0.55339199 0.82341343
+vt 0.55339193 0.81780750
+vt 0.31652069 0.78633469
+vt 0.55339152 0.77576309
+vt 0.18899569 0.73652178
+vt 0.19778764 0.73652166
+vt 0.18899569 0.72610366
+vt 0.55339110 0.73371875
+vt 0.55339080 0.70568913
+vt 0.55339068 0.69167447
+vt 0.55339062 0.68887132
+vt 0.26634693 0.67205369
+vt 0.26425636 0.67765957
+vt 0.55339026 0.65523583
+vt 0.55339020 0.64682692
+vt 0.29143381 0.62720633
+vt 0.12773949 0.63000900
+vt 0.13673136 0.63000923
+vt 0.14509363 0.61879742
+vt 0.12773968 0.62440294
+vt 0.12774013 0.61038828
+vt 0.12773994 0.61599404
+vt 0.14300309 0.61599445
+vt 0.13673136 0.61319155
+vt 0.13882191 0.60758561
+vt 0.14091250 0.60758561
+vt 0.14300309 0.61319155
+vt 0.15293749 0.61319184
+vt 0.17227112 0.61319155
+vt 0.18063341 0.60758561
+vt 0.17227112 0.60758561
+vt 0.15293795 0.59917694
+vt 0.15293775 0.60478294
+vt 0.14300309 0.60197967
+vt 0.87663162 0.60197973
+vt 0.88724732 0.60197967
+vt 0.88724732 0.60758561
+vt 0.88933796 0.60197967
+vt 0.89974147 0.60478240
+vt 0.89974129 0.59917647
+vt 0.88724732 0.59637374
+vt 0.87663144 0.59637386
+vt 0.16599938 0.57675302
+vt 0.15293857 0.57955557
+vt 0.17018053 0.58235896
+vt 0.15293840 0.58516151
+vt 0.15293811 0.59357035
+vt 0.16390879 0.59076780
+vt 0.16390879 0.58516192
+vt 0.17854282 0.55993527
+vt 0.18481454 0.55713230
+vt 0.17227112 0.54872346
+vt 0.16808994 0.55713230
+vt 0.16808994 0.56554121
+vt 0.17227112 0.56554121
+vt 0.16181825 0.56554121
+vt 0.16181825 0.57395011
+vt 0.16599938 0.57395011
+vt 0.15293914 0.56273818
+vt 0.15293886 0.57114708
+vt 0.15293904 0.56554079
+vt 0.55338949 0.57394993
+vt 0.55338943 0.56834406
+vt 0.18690513 0.54031456
+vt 0.18899569 0.54592049
+vt 0.19778574 0.54592031
+vt 0.19778569 0.54031444
+vt 0.16599938 0.53470862
+vt 0.16808994 0.54031456
+vt 0.16390879 0.54031456
+vt 0.16181825 0.53470862
+vt 0.19778539 0.50948209
+vt 0.19778544 0.51508802
+vt 0.17645226 0.50948203
+vt 0.18063341 0.50948203
+vt 0.17854282 0.50387603
+vt 0.86957026 0.50372583
+vt 0.86425108 0.51228493
+vt 0.87224132 0.50816292
+vt 0.19778526 0.49827018
+vt 0.19778535 0.50667912
+vt 0.20990144 0.49546716
+vt 0.17436168 0.48145241
+vt 0.17018053 0.48705831
+vt 0.15294163 0.48705789
+vt 0.22453545 0.47584644
+vt 0.14045042 0.45852864
+vt 0.15294245 0.46183202
+vt 0.14127509 0.45715865
+vt 0.14331856 0.45376414
+vt 0.23498833 0.45622572
+vt 0.23289774 0.46183169
+vt 0.17645226 0.45061985
+vt 0.17436168 0.45622572
+vt 0.18272395 0.45622572
+vt 0.23707889 0.44221097
+vt 0.24126004 0.43380207
+vt 0.16033030 0.42550457
+vt 0.17018053 0.42819616
+vt 0.17854282 0.42259026
+vt 0.16527823 0.41728517
+vt 0.25589406 0.40296951
+vt 0.18899590 0.36935461
+vt 0.19006963 0.37610209
+vt 0.19274071 0.37166494
+vt 0.53393978 0.36939877
+vt 0.53394037 0.35812211
+vt 0.19778384 0.35531920
+vt 0.20032342 0.35906863
+vt 0.48585719 0.30486593
+vt 0.32906413 0.28524521
+vt 0.25380349 0.31047183
+vt 0.52348751 0.29925996
+vt 0.42313996 0.29365405
+vt 0.41686824 0.29925996
+vt 0.42523053 0.29925996
+vt 0.47540420 0.07214808
+vt 0.47540432 0.08343205
+vt 0.48167604 0.08343205
+vt 0.48167595 0.07214789
+vt 0.55338621 0.24320064
+vt 0.27261865 0.27123034
+vt 0.31024900 0.26842743
+vt 0.31652069 0.26282156
+vt 0.31652069 0.26842743
+vt 0.33115470 0.26562449
+vt 0.33742642 0.27403334
+vt 0.35415104 0.27403334
+vt 0.35415104 0.26562449
+vt 0.37714735 0.26562449
+vt 0.38550964 0.27683631
+vt 0.41686824 0.26562449
+vt 0.45240802 0.26562449
+vt 0.45658916 0.27123034
+vt 0.46913257 0.26562449
+vt 0.49003834 0.26842743
+vt 0.49003834 0.26001853
+vt 0.49421948 0.26001853
+vt 0.50467235 0.27683631
+vt 0.50467235 0.26562449
+vt 0.51094407 0.26562449
+vt 0.51094407 0.27403334
+vt 0.51512522 0.27403334
+vt 0.51303464 0.26282156
+vt 0.51721579 0.26282156
+vt 0.51721579 0.27123034
+vt 0.54230267 0.26842743
+vt 0.54439324 0.26282156
+vt 0.55338639 0.26562449
+vt 0.55338454 0.07782599
+vt 0.55066490 0.07214647
+vt 0.48585713 0.07214789
+vt 0.48794773 0.08623498
+vt 0.47540432 0.09184095
+vt 0.40223420 0.07214959
+vt 0.38341910 0.06911859
+vt 0.37935102 0.06167114
+vt 0.37296626 0.06911878
+vt 0.35415104 0.07215054
+vt 0.20362970 0.06912228
+vt 0.19778106 0.07502316
+vt 0.19778298 0.26842752
+vt 0.23498833 0.26562449
+vt 0.25116143 0.27461746
+vt 0.25858337 0.26228824
+vt 0.26634693 0.26842743
+vt 0.27261865 0.26562449
+vt 0.25324127 0.27116245
+vt 0.24789914 0.28003666
+vt 0.26425636 0.27683631
+vt 0.55338562 0.18714151
+vt 0.55338562 0.18153556
+vt 0.08655757 0.14229421
+vt 0.09073876 0.14509724
+vt 0.09073876 0.13949127
+vt 0.49421936 0.07214770
+vt 0.50258166 0.07214751
+vt 0.51930624 0.07214713
+vt 0.52766854 0.07214694
+vt 0.08655757 0.05820546
+vt 0.08655765 0.06912474
+vt 0.09073883 0.06912464
+vt 0.09073876 0.05820546
+vt 0.25304419 0.27148992
+vt 0.46922451 0.06911679
+vt 0.49421936 0.07214770
+vt 0.50258166 0.07214751
+vt 0.51930624 0.07214713
+vt 0.52766854 0.07214694
+vt 0.55338562 0.18153556
+vt 0.55338562 0.18714151
+vt 0.55338615 0.23879564
+vt 0.55338621 0.24320064
+vt 0.55339080 0.70288569
+vt 0.55339217 0.84303427
+f 1/1 2/2 3/3
+f 144/144 140/140 145/145
+f 212/212 161/161 218/218
+f 65/65 79/79 61/61
+f 46/46 6/6 7/7
+f 7/7 8/8 9/9
+f 28/28 221/221 27/27
+f 128/128 91/91 90/90
+f 88/88 87/87 86/86
+f 86/86 85/85 84/84
+f 127/127 91/91 128/128
+f 91/91 127/127 9/9
+f 13/13 14/14 15/15
+f 15/15 16/16 17/17
+f 17/17 18/18 19/19
+f 19/19 20/20 21/21
+f 17/17 22/22 23/23
+f 12/12 24/24 25/25
+f 221/221 28/28 199/199
+f 199/199 28/28 29/29
+f 201/201 31/31 234/234
+f 31/31 32/32 33/33
+f 232/232 35/35 229/229
+f 71/71 37/37 69/69
+f 224/224 231/231 230/230
+f 147/147 223/223 139/139
+f 83/83 70/70 74/74
+f 139/139 138/138 137/137
+f 143/143 147/147 137/137
+f 93/93 83/83 95/95
+f 83/83 81/81 96/96
+f 108/108 70/70 109/109
+f 137/137 132/132 143/143
+f 144/144 143/143 132/132
+f 133/133 125/125 132/132
+f 125/125 133/133 123/123
+f 120/120 134/134 108/108
+f 102/102 108/108 105/105
+f 108/108 119/119 120/120
+f 105/105 103/103 102/102
+f 99/99 102/102 104/104
+f 62/62 56/56 55/55
+f 157/157 152/152 154/154
+f 206/206 208/208 207/207
+f 206/206 205/205 204/204
+f 234/234 166/166 169/169
+f 167/167 166/166 234/234
+f 201/201 235/235 225/225
+f 227/227 236/236 237/237
+f 228/228 238/238 200/200
+f 199/199 239/239 221/221
+f 220/220 240/240 241/241
+f 170/170 242/242 198/198
+f 196/196 198/198 197/197
+f 198/198 155/155 127/127
+f 195/195 194/194 193/193
+f 9/9 243/243 58/58
+f 191/191 190/190 189/189
+f 185/185 187/187 186/186
+f 183/183 159/159 184/184
+f 163/163 181/181 164/164
+f 164/164 181/181 180/180
+f 177/177 179/179 178/178
+f 160/160 175/175 174/174
+f 174/174 173/173 172/172
+f 171/171 216/216 215/215
+f 154/154 158/158 157/157
+f 132/132 129/129 144/144
+f 231/231 210/210 232/232
+f 150/150 153/153 152/152
+f 100/100 115/115 114/114
+f 100/100 114/114 113/113
+f 67/67 56/56 78/78
+f 48/48 47/47 42/42
+f 102/102 99/99 101/101
+f 100/100 94/94 79/79
+f 104/104 103/103 107/107
+f 109/109 105/105 110/110
+f 106/106 93/93 92/92
+f 98/98 93/93 95/95
+f 97/97 96/96 81/81
+f 82/82 83/83 75/75
+f 83/83 74/74 75/75
+f 76/76 73/73 72/72
+f 72/72 71/71 69/69
+f 136/136 36/36 70/70
+f 35/35 230/230 229/229
+f 35/35 222/222 230/230
+f 37/37 38/38 39/39
+f 40/40 1/1 3/3
+f 144/144 145/145 149/149
+f 154/154 151/151 158/158
+f 128/128 90/90 89/89
+f 91/91 9/9 84/84
+f 23/23 15/15 17/17
+f 22/22 19/19 21/21
+f 128/128 27/27 126/126
+f 204/204 31/31 33/33
+f 222/222 35/35 36/36
+f 222/222 136/136 223/223
+f 139/139 137/137 147/147
+f 147/147 143/143 148/148
+f 109/109 83/83 93/93
+f 83/83 96/96 95/95
+f 70/70 108/108 136/136
+f 148/148 142/142 149/149
+f 124/124 129/129 125/125
+f 123/123 134/134 120/120
+f 108/108 102/102 119/119
+f 119/119 102/102 101/101
+f 101/101 100/100 113/113
+f 34/34 206/206 33/33
+f 31/31 204/204 234/234
+f 167/167 234/234 203/203
+f 236/236 227/227 226/226
+f 198/198 126/126 170/170
+f 162/162 198/198 196/196
+f 127/127 155/155 112/112
+f 195/195 193/193 192/192
+f 188/188 191/191 189/189
+f 187/187 185/185 188/188
+f 165/165 183/183 182/182
+f 181/181 163/163 182/182
+f 179/179 177/177 180/180
+f 175/175 160/160 176/176
+f 211/211 161/161 212/212
+f 152/152 157/157 211/211
+f 146/146 149/149 145/145
+f 56/56 62/62 79/79
+f 115/115 100/100 79/79
+f 41/41 48/48 42/42
+f 94/94 99/99 104/104
+f 105/105 109/109 106/106
+f 93/93 98/98 94/94
+f 97/97 81/81 82/82
+f 82/82 75/75 77/77
+f 73/73 75/75 74/74
+f 72/72 69/69 68/68
+f 230/230 222/222 224/224
+f 136/136 222/222 36/36
+f 1/1 42/42 39/39
+f 10/10 84/84 9/9
+f 22/22 17/17 19/19
+f 209/209 35/35 232/232
+f 139/139 223/223 136/136
+f 153/153 150/150 149/149
+f 83/83 109/109 70/70
+f 121/121 124/124 122/122
+f 134/134 123/123 133/133
+f 119/119 101/101 118/118
+f 168/168 167/167 203/203
+f 30/30 226/226 227/227
+f 126/126 198/198 127/127
+f 127/127 112/112 9/9
+f 6/6 43/43 44/44
+f 159/159 185/185 184/184
+f 182/182 163/163 165/165
+f 140/140 144/144 141/141
+f 141/141 144/144 135/135
+f 130/130 124/124 121/121
+f 61/61 79/79 62/62
+f 78/78 56/56 79/79
+f 48/48 41/41 49/49
+f 99/99 94/94 100/100
+f 93/93 106/106 109/109
+f 94/94 98/98 97/97
+f 80/80 82/82 77/77
+f 75/75 73/73 76/76
+f 37/37 70/70 36/36
+f 84/84 10/10 86/86
+f 15/15 23/23 13/13
+f 35/35 209/209 34/34
+f 150/150 223/223 147/147
+f 134/134 136/136 108/108
+f 117/117 123/123 120/120
+f 113/113 118/118 101/101
+f 168/168 203/203 202/202
+f 30/30 227/227 228/228
+f 9/9 112/112 111/111
+f 149/149 146/146 153/153
+f 131/131 144/144 129/129
+f 55/55 54/54 49/49
+f 54/54 47/47 49/49
+f 107/107 106/106 92/92
+f 80/80 77/77 78/78
+f 68/68 76/76 72/72
+f 70/70 37/37 71/71
+f 86/86 10/10 88/88
+f 24/24 13/13 23/23
+f 208/208 34/34 209/209
+f 152/152 223/223 150/150
+f 136/136 134/134 137/137
+f 113/113 123/123 117/117
+f 118/118 113/113 117/117
+f 201/201 168/168 202/202
+f 64/64 9/9 111/111
+f 198/198 162/162 156/156
+f 7/7 244/244 46/46
+f 125/125 129/129 132/132
+f 52/52 49/49 41/41
+f 66/66 56/56 67/67
+f 94/94 107/107 92/92
+f 76/76 68/68 77/77
+f 69/69 37/37 66/66
+f 11/11 88/88 10/10
+f 13/13 24/24 12/12
+f 210/210 223/223 211/211
+f 132/132 137/137 134/134
+f 123/123 113/113 124/124
+f 168/168 201/201 169/169
+f 7/7 51/51 50/50
+f 129/129 124/124 130/130
+f 49/49 52/52 55/55
+f 56/56 66/66 54/54
+f 107/107 94/94 104/104
+f 78/78 68/68 67/67
+f 39/39 66/66 37/37
+f 26/26 11/11 25/25
+f 11/11 12/12 25/25
+f 223/223 152/152 211/211
+f 148/148 143/143 142/142
+f 122/122 113/113 116/116
+f 234/234 169/169 201/201
+f 244/244 7/7 50/50
+f 39/39 54/54 66/66
+f 79/79 94/94 80/80
+f 42/42 1/1 40/40
+f 11/11 26/26 88/88
+f 149/149 142/142 144/144
+f 113/113 122/122 124/124
+f 31/31 201/201 225/225
+f 97/97 80/80 94/94
+f 47/47 39/39 42/42
+f 88/88 26/26 89/89
+f 135/135 144/144 131/131
+f 30/30 225/225 226/226
+f 82/82 80/80 97/97
+f 89/89 26/26 128/128
+f 223/223 210/210 224/224
+f 30/30 200/200 29/29
+f 9/9 60/60 59/59
+f 79/79 65/65 115/115
+f 68/68 78/78 77/77
+f 27/27 128/128 26/26
+f 224/224 210/210 231/231
+f 200/200 30/30 228/228
+f 60/60 9/9 63/63
+f 54/54 39/39 47/47
+f 220/220 27/27 221/221
+f 232/232 210/210 209/209
+f 63/63 9/9 64/64
+f 9/9 57/57 53/53
+f 4/4 40/40 3/3
+f 27/27 220/220 126/126
+f 206/206 34/34 208/208
+f 243/243 9/9 59/59
+f 40/40 4/4 41/41
+f 204/204 33/33 206/206
+f 9/9 58/58 57/57
+f 31/31 225/225 30/30
+f 153/153 146/146 154/154
+f 29/29 200/200 199/199
+f 151/151 154/154 146/146
+f 241/241 126/126 220/220
+f 212/212 218/218 213/213
+f 170/170 126/126 241/241
+f 155/155 198/198 156/156
+f 51/51 9/9 53/53
+f 233/233 217/217 214/214
+f 51/51 7/7 9/9
+f 219/219 214/214 217/217
+f 6/6 46/46 43/43
+f 214/214 219/219 215/215
+f 45/45 6/6 44/44
+f 6/6 45/45 5/5
+
diff --git a/ai_002_003/background_mesh/29.obj b/ai_002_003/background_mesh/29.obj
new file mode 100644
index 0000000000000000000000000000000000000000..0acad4c8c6d23d0e740e5e570489b3cc3053000c
--- /dev/null
+++ b/ai_002_003/background_mesh/29.obj
@@ -0,0 +1,14 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 3.90478420 6.69275331 -3.02208829
+v 3.90460253 6.69273758 -0.42791179
+v 3.90537381 3.52230740 -0.42791197
+v 3.90555549 3.52230740 -3.02208829
+vt 0.00000000 1.00000000
+vt 1.00000000 0.99999505
+vt 0.99999988 0.00000000
+vt 0.00000000 0.00000000
+f 4/4 2/2 3/3
+f 2/2 4/4 1/1
+
diff --git a/ai_002_003/background_mesh/3.obj b/ai_002_003/background_mesh/3.obj
new file mode 100644
index 0000000000000000000000000000000000000000..a18ee268b6bd1cc12f5be10feba337ab85df777e
--- /dev/null
+++ b/ai_002_003/background_mesh/3.obj
@@ -0,0 +1,14 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 3.38205576 1.75572538 -3.61428928
+v 3.38205576 1.75572610 -3.03571081
+v 0.58794427 1.75559926 -3.03571081
+v 0.58794427 1.75559855 -3.60017776
+vt 0.00000000 1.00000000
+vt 1.00000000 1.00000000
+vt 1.00000000 0.00000000
+vt 0.02438998 0.00000000
+f 4/4 2/2 3/3
+f 2/2 4/4 1/1
+
diff --git a/ai_002_003/background_mesh/30.obj b/ai_002_003/background_mesh/30.obj
new file mode 100644
index 0000000000000000000000000000000000000000..87553880ddaec19167f7ebc08aba7fcf54183297
--- /dev/null
+++ b/ai_002_003/background_mesh/30.obj
@@ -0,0 +1,47 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 0.14287150 -4.99883842 -2.70557785
+v 0.10728088 -4.99883699 -2.65558815
+v 0.10728145 -4.99881983 -1.54029405
+v 0.14287364 -4.99881935 -1.49863684
+v 0.10728148 -4.99881840 -1.45558822
+v 0.10728205 -4.99880123 -0.34029388
+v 0.14287186 -4.99880123 -0.30123216
+v -1.04301107 -4.99876022 -0.30121198
+v -1.01055026 -4.99876213 -0.34029400
+v -1.01055026 -4.99876451 -0.50970578
+v -1.01055062 -4.99877930 -1.45558822
+v -1.04301345 -4.99877834 -1.49854112
+v -1.01055062 -4.99878073 -1.54029405
+v -1.01055110 -4.99879789 -2.66970587
+v -1.04301143 -4.99879742 -2.70555782
+vt 0.00000000 0.99999821
+vt 0.02079122 0.96998638
+vt 0.48465323 0.96998686
+vt 0.50197887 1.00000000
+vt 0.51988328 0.96998686
+vt 0.98374540 0.96998733
+vt 0.99999160 0.99999851
+vt 1.00000000 0.00000201
+vt 0.98374540 0.02737461
+vt 0.91328526 0.02737461
+vt 0.51988328 0.02737430
+vt 0.50201869 0.00000000
+vt 0.48465323 0.02737430
+vt 0.01491952 0.02737390
+vt 0.00000833 0.00000171
+f 3/3 4/4 5/5
+f 6/6 7/7 8/8
+f 11/11 12/12 13/13
+f 14/14 15/15 1/1
+f 10/10 5/5 6/6
+f 6/6 8/8 9/9
+f 3/3 13/13 2/2
+f 2/2 14/14 1/1
+f 11/11 5/5 10/10
+f 6/6 9/9 10/10
+f 14/14 2/2 13/13
+f 5/5 11/11 3/3
+f 13/13 3/3 11/11
+
diff --git a/ai_002_003/background_mesh/31.obj b/ai_002_003/background_mesh/31.obj
new file mode 100644
index 0000000000000000000000000000000000000000..4cad4df67304dbd74a968e61280d02f9bbf160c8
--- /dev/null
+++ b/ai_002_003/background_mesh/31.obj
@@ -0,0 +1,324 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 0.30207482 -4.98359919 -5.41147995
+v 0.30207565 -4.98352003 -0.30123508
+v 0.13228765 -4.98351431 -0.30123219
+v 0.10728130 -4.98351431 -0.33441472
+v 0.10728076 -4.98353052 -1.40973377
+v 0.04739392 -4.98352718 -1.32484031
+v 0.04739392 -4.98352766 -1.35313821
+v 0.10728079 -4.98353004 -1.35313821
+v 0.10728074 -4.98353148 -1.46632957
+v 0.13228711 -4.98353291 -1.48629773
+v 0.10728072 -4.98353243 -1.50877655
+v 0.13228938 -4.98353291 -1.48629773
+v 0.10728069 -4.98353291 -1.56537223
+v 0.04739231 -4.98352957 -1.48629081
+v 0.10728071 -4.98353243 -1.52292550
+v 0.10728028 -4.98354530 -2.37186170
+v 0.04739392 -4.98354292 -2.35771275
+v 0.03324497 -4.98354292 -2.38601065
+v 0.04739392 -4.98354197 -2.30111694
+v 0.01909605 -4.98354101 -2.30111694
+v 0.00494710 -4.98354149 -2.35771275
+v -0.06579760 -4.98353910 -2.37186170
+v -0.03749973 -4.98353910 -2.28696823
+v -0.16484016 -4.98353577 -2.37186170
+v -0.20728697 -4.98353434 -2.35771275
+v -0.16484016 -4.98353529 -2.32941484
+v -0.16484016 -4.98353481 -2.28696823
+v -0.20728697 -4.98353338 -2.28696823
+v -0.23558486 -4.98353338 -2.35771275
+v -0.36292529 -4.98352909 -2.38601065
+v -0.30632955 -4.98353004 -2.28696823
+v -0.37707424 -4.98352718 -2.28696823
+v -0.40537211 -4.98352718 -2.34356380
+v -0.64590406 -4.98351955 -2.38601065
+v -0.66005301 -4.98351860 -2.35771275
+v -0.53271258 -4.98352242 -2.31526613
+v -0.53271258 -4.98352194 -2.28696823
+v -0.78739345 -4.98351336 -2.30111694
+v -0.89244711 -4.98350954 -2.28696799
+v -0.89244574 -4.98350906 -2.25867009
+v -0.89245129 -4.98351049 -2.37186289
+v -0.96035355 -4.98350859 -2.38601065
+v -0.96035355 -4.98350811 -2.35771275
+v -1.01055300 -4.98350620 -2.35771275
+v -1.01055312 -4.98351097 -2.66898942
+v -1.04207468 -4.98351049 -2.70555806
+v -1.01055312 -4.98351192 -2.73973417
+v -1.04207468 -4.98351192 -2.77187181
+v -1.01055312 -4.98351336 -2.82462788
+v -1.01055324 -4.98351669 -3.05101085
+v -1.04207432 -4.98351669 -3.08678770
+v -1.01055324 -4.98351812 -3.12175560
+v -1.01055384 -4.98354101 -4.63569164
+v -1.04207444 -4.98354101 -4.67392540
+v -1.01055384 -4.98354244 -4.70643663
+v -1.01055384 -4.98354435 -4.84792614
+v -1.04207444 -4.98354435 -4.89110041
+v -1.01055396 -4.98354673 -5.00356436
+v -1.04207456 -4.98354626 -5.04731512
+v -1.01055396 -4.98354816 -5.08845806
+v -1.01055396 -4.98354959 -5.18750048
+v -1.04207468 -4.98354959 -5.23229980
+v -1.01055396 -4.98355103 -5.27239418
+v -1.01055408 -4.98355246 -5.37143660
+v -1.04207480 -4.98355246 -5.41145706
+v -0.90058494 -4.98355722 -5.41145945
+v -0.89259905 -4.98355675 -5.38558531
+v -0.87228739 -4.98355818 -5.41145992
+v -0.78739363 -4.98356152 -5.41146135
+v -0.77324450 -4.98356056 -5.34313869
+v -0.09409547 -4.98358393 -5.34313869
+v -0.10824510 -4.98358488 -5.41147280
+v -0.00920179 -4.98358822 -5.41147470
+v 0.01909566 -4.98357773 -4.67391682
+v 0.08984071 -4.98358059 -4.67391586
+v 0.10398969 -4.98359251 -5.41147661
+v 0.10728036 -4.98354292 -2.21622348
+v 0.10728043 -4.98354053 -2.06058502
+v 0.10728031 -4.98354435 -2.30111694
+v 0.04739392 -4.98354053 -2.21622348
+v 0.04739392 -4.98353291 -1.72101057
+v 0.10728060 -4.98353529 -1.72101057
+v 0.10728054 -4.98353767 -1.84835100
+v 0.10728063 -4.98353481 -1.66441488
+v 0.04739392 -4.98353243 -1.66441488
+v -0.53271258 -4.98356295 -4.97526646
+v -0.07994652 -4.98357868 -4.97526646
+v -0.06579760 -4.98357677 -4.80547905
+v -0.89257133 -4.98354816 -4.81962538
+v -0.82984030 -4.98355055 -4.83377743
+v -0.80154240 -4.98355341 -4.96111774
+v -0.26388273 -4.98357725 -5.28654289
+v -0.22143592 -4.98357868 -5.28654289
+v -0.22143650 -4.98357821 -5.23228788
+v -0.07994607 -4.98358297 -5.23228550
+v -0.07994674 -4.98357964 -5.04730701
+v -0.78739381 -4.98355532 -5.04731321
+v -0.80154240 -4.98355579 -5.11675549
+v -0.89258522 -4.98355246 -5.10260582
+v -0.91473413 -4.98355389 -5.23229790
+v -0.89259422 -4.98355532 -5.28654385
+v -0.51856363 -4.98356819 -5.28654289
+v -0.50441527 -4.98356819 -5.23229170
+v -0.47611740 -4.98356915 -5.23229170
+v -0.47611681 -4.98356962 -5.28654289
+v 0.10728081 -4.98352957 -1.32484031
+v 0.10728076 -4.98353052 -1.40973353
+vt 0.00000000 0.99999928
+vt 0.99999946 1.00000000
+vt 1.00000000 0.87368369
+vt 0.99350673 0.85507989
+vt 0.78308266 0.85507953
+vt 0.79969501 0.81052583
+vt 0.79415762 0.81052583
+vt 0.79415762 0.85507953
+vt 0.77200770 0.85507953
+vt 0.76810020 0.87368333
+vt 0.76370138 0.85507947
+vt 0.76810020 0.87368500
+vt 0.75262648 0.85507947
+vt 0.76810151 0.81052464
+vt 0.76093268 0.85507947
+vt 0.59480840 0.85507917
+vt 0.59757715 0.81052583
+vt 0.59203964 0.79999948
+vt 0.60865211 0.81052583
+vt 0.60865211 0.78947318
+vt 0.59757715 0.77894688
+vt 0.59480840 0.72631538
+vt 0.61142081 0.74736804
+vt 0.59480840 0.65263128
+vt 0.59757715 0.62105232
+vt 0.60311460 0.65263128
+vt 0.61142081 0.65263128
+vt 0.61142081 0.62105232
+vt 0.59757715 0.59999973
+vt 0.59203964 0.50526297
+vt 0.61142081 0.54736823
+vt 0.61142081 0.49473667
+vt 0.60034591 0.47368407
+vt 0.59203964 0.29473689
+vt 0.59757715 0.28421059
+vt 0.60588330 0.37894729
+vt 0.61142081 0.37894729
+vt 0.60865211 0.18947385
+vt 0.61142087 0.11131768
+vt 0.61695832 0.11131870
+vt 0.59480816 0.11131457
+vt 0.59203964 0.06079773
+vt 0.59757715 0.06079773
+vt 0.59757715 0.02345109
+vt 0.53666490 0.02345100
+vt 0.52950895 0.00000009
+vt 0.52282119 0.02345100
+vt 0.51653236 0.00000009
+vt 0.50620878 0.02345100
+vt 0.46190894 0.02345091
+vt 0.45490795 0.00000035
+vt 0.44806525 0.02345091
+vt 0.15181032 0.02345047
+vt 0.14432853 0.00000027
+vt 0.13796657 0.02345047
+vt 0.11027916 0.02345047
+vt 0.10183059 0.00000027
+vt 0.07982306 0.02345038
+vt 0.07126168 0.00000018
+vt 0.06321061 0.02345038
+vt 0.04382947 0.02345038
+vt 0.03506291 0.00000009
+vt 0.02721703 0.02345038
+vt 0.00783589 0.02345029
+vt 0.00000448 0.00000000
+vt 0.00000401 0.10526343
+vt 0.00506720 0.11120465
+vt 0.00000392 0.12631579
+vt 0.00000364 0.18947372
+vt 0.01337337 0.20000017
+vt 0.01337337 0.70526278
+vt 0.00000140 0.69473594
+vt 0.00000103 0.76842064
+vt 0.14433022 0.78947294
+vt 0.14433040 0.84210473
+vt 0.00000065 0.85263109
+vt 0.62526453 0.85507917
+vt 0.65572065 0.85507929
+vt 0.60865211 0.85507917
+vt 0.62526453 0.81052583
+vt 0.72217035 0.81052583
+vt 0.72217035 0.85507935
+vt 0.69725174 0.85507935
+vt 0.73324531 0.85507935
+vt 0.73324531 0.81052583
+vt 0.08536054 0.37894729
+vt 0.08536054 0.71578908
+vt 0.11858543 0.72631538
+vt 0.11581720 0.11122526
+vt 0.11304785 0.15789491
+vt 0.08812924 0.17894754
+vt 0.02444834 0.57894713
+vt 0.02444834 0.61052603
+vt 0.03506524 0.61052561
+vt 0.03506571 0.71578944
+vt 0.07126327 0.71578896
+vt 0.07126205 0.18947358
+vt 0.05767323 0.17894754
+vt 0.06044210 0.11121494
+vt 0.03506328 0.09473691
+vt 0.02444815 0.11120824
+vt 0.02444834 0.38947362
+vt 0.03506450 0.39999950
+vt 0.03506450 0.42105213
+vt 0.02444834 0.42105255
+vt 0.79969501 0.85507953
+vt 0.78308266 0.85507953
+f 4/4 2/2 3/3
+f 2/2 4/4 106/106
+f 8/8 6/6 7/7
+f 8/8 5/5 107/107
+f 12/12 9/9 10/10
+f 10/10 11/11 12/12
+f 13/13 15/15 16/16
+f 16/16 17/17 18/18
+f 21/21 19/19 20/20
+f 22/22 23/23 24/24
+f 28/28 26/26 27/27
+f 25/25 28/28 29/29
+f 30/30 31/31 32/32
+f 35/35 36/36 37/37
+f 39/39 40/40 41/41
+f 42/42 43/43 44/44
+f 45/45 46/46 47/47
+f 47/47 48/48 49/49
+f 50/50 51/51 52/52
+f 53/53 54/54 55/55
+f 56/56 57/57 58/58
+f 99/99 91/91 58/58
+f 91/91 90/90 89/89
+f 91/91 97/97 86/86
+f 58/58 59/59 60/60
+f 61/61 62/62 63/63
+f 64/64 65/65 66/66
+f 70/70 68/68 69/69
+f 105/105 70/70 71/71
+f 99/99 98/98 97/97
+f 95/95 94/94 93/93
+f 105/105 104/104 103/103
+f 70/70 102/102 101/101
+f 71/71 72/72 73/73
+f 75/75 76/76 1/1
+f 6/6 8/8 106/106
+f 9/9 12/12 107/107
+f 12/12 13/13 16/16
+f 19/19 21/21 18/18
+f 26/26 28/28 25/25
+f 30/30 32/32 33/33
+f 35/35 37/37 38/38
+f 38/38 39/39 41/41
+f 42/42 44/44 45/45
+f 89/89 74/74 53/53
+f 89/89 53/53 55/55
+f 89/89 58/58 91/91
+f 67/67 64/64 66/66
+f 68/68 70/70 67/67
+f 105/105 103/103 102/102
+f 96/96 73/73 74/74
+f 12/12 106/106 8/8
+f 107/107 12/12 8/8
+f 18/18 21/21 22/22
+f 24/24 25/25 29/29
+f 30/30 33/33 34/34
+f 34/34 35/35 38/38
+f 41/41 42/42 45/45
+f 74/74 89/89 88/88
+f 58/58 89/89 56/56
+f 101/101 64/64 67/67
+f 67/67 70/70 101/101
+f 70/70 105/105 102/102
+f 2/2 106/106 12/12
+f 18/18 22/22 24/24
+f 24/24 29/29 30/30
+f 34/34 38/38 41/41
+f 34/34 45/45 47/47
+f 56/56 89/89 55/55
+f 64/64 101/101 63/63
+f 63/63 101/101 100/100
+f 92/92 105/105 71/71
+f 16/16 2/2 12/12
+f 34/34 49/49 30/30
+f 45/45 34/34 41/41
+f 53/53 74/74 52/52
+f 99/99 61/61 100/100
+f 63/63 100/100 61/61
+f 93/93 92/92 71/71
+f 2/2 16/16 1/1
+f 49/49 34/34 47/47
+f 75/75 52/52 74/74
+f 61/61 99/99 60/60
+f 95/95 93/93 71/71
+f 1/1 16/16 75/75
+f 50/50 30/30 49/49
+f 24/24 52/52 18/18
+f 60/60 99/99 58/58
+f 73/73 95/95 71/71
+f 18/18 75/75 16/16
+f 52/52 30/30 50/50
+f 91/91 99/99 97/97
+f 73/73 96/96 95/95
+f 52/52 75/75 18/18
+f 96/96 86/86 97/97
+f 30/30 52/52 24/24
+f 86/86 96/96 87/87
+f 87/87 74/74 88/88
+f 74/74 87/87 96/96
+f 15/15 11/11 14/14
+f 79/79 80/80 19/19
+f 79/79 78/78 77/77
+f 80/80 79/79 77/77
+f 82/82 83/83 84/84
+f 82/82 85/85 81/81
+f 85/85 82/82 84/84
+
diff --git a/ai_002_003/background_mesh/32.obj b/ai_002_003/background_mesh/32.obj
new file mode 100644
index 0000000000000000000000000000000000000000..1dc7d6b620105870a8a6e958b74cb60422bef09f
--- /dev/null
+++ b/ai_002_003/background_mesh/32.obj
@@ -0,0 +1,14 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -0.83785605 -2.74796367 -4.89112949
+v 0.04785821 -2.74799085 -4.89113283
+v 0.04785672 -2.98214269 -4.89112997
+v -0.83785665 -2.98214269 -4.89112616
+vt 0.00000067 1.00000000
+vt 1.00000000 0.99988395
+vt 0.99999827 0.00000000
+vt 0.00000000 0.00000000
+f 4/4 2/2 3/3
+f 2/2 4/4 1/1
+
diff --git a/ai_002_003/background_mesh/33.obj b/ai_002_003/background_mesh/33.obj
new file mode 100644
index 0000000000000000000000000000000000000000..4aeeafc7e93a559681ae2f4bbf8464d76c051618
--- /dev/null
+++ b/ai_002_003/background_mesh/33.obj
@@ -0,0 +1,64 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -0.89240485 -2.14032078 -5.38156223
+v -0.83252680 -2.10323191 -5.41149807
+v -0.81841111 -2.23916292 -5.30178738
+v -0.81838262 -3.48434138 -4.29679251
+v -0.89244294 -3.46920419 -4.30900764
+v 0.05663813 -3.09579849 -4.61041403
+v 0.05661606 -2.10324454 -5.41151333
+v 0.10714155 -2.14031959 -5.38159180
+v 0.11308992 -3.01705551 -4.67397070
+v 0.10720623 -3.46920395 -4.30903673
+v 0.02841977 -3.48434877 -4.29681063
+v 0.02841920 -3.43625641 -4.33562660
+v 0.05664571 -3.42527342 -4.34449148
+v 0.02841641 -3.31544876 -4.43313122
+v 0.05664320 -3.31544876 -4.43313217
+v -0.67725039 -3.40330863 -4.36219883
+v -0.64902800 -3.21660614 -4.51288891
+v -0.56434751 -3.22758842 -4.50402737
+v -0.57845879 -3.31544876 -4.43311405
+v -0.60668528 -3.32643104 -4.42424917
+v -0.60668212 -3.48434329 -4.29679680
+v -0.67724901 -3.48434281 -4.29679537
+vt 0.00006835 0.97314596
+vt 0.05961720 1.00000000
+vt 0.07365196 0.90157896
+vt 0.07365166 0.00000544
+vt 0.00000000 0.01096551
+vt 0.94385761 0.28133053
+vt 0.94385850 0.99999082
+vt 0.99410462 0.97314680
+vt 1.00000000 0.33834484
+vt 0.99413842 0.01096577
+vt 0.91578591 0.00000000
+vt 0.91578650 0.03482145
+vt 0.94385761 0.04277354
+vt 0.91578645 0.12229229
+vt 0.94385761 0.12229235
+vt 0.21400775 0.05867732
+vt 0.24207886 0.19385956
+vt 0.32629228 0.18590780
+vt 0.31225675 0.12229238
+vt 0.28418562 0.11434058
+vt 0.28418517 0.00000396
+vt 0.21400724 0.00000437
+f 1/1 2/2 3/3
+f 3/3 4/4 5/5
+f 5/5 1/1 3/3
+f 9/9 7/7 8/8
+f 15/15 10/10 13/13
+f 13/13 11/11 12/12
+f 13/13 14/14 15/15
+f 7/7 9/9 6/6
+f 11/11 13/13 10/10
+f 6/6 9/9 15/15
+f 10/10 15/15 9/9
+f 20/20 16/16 17/17
+f 17/17 18/18 19/19
+f 16/16 21/21 22/22
+f 17/17 19/19 20/20
+f 21/21 16/16 20/20
+
diff --git a/ai_002_003/background_mesh/34.obj b/ai_002_003/background_mesh/34.obj
new file mode 100644
index 0000000000000000000000000000000000000000..d6e8782ad00744d5b25a0a8b4bb4775f84ba7caf
--- /dev/null
+++ b/ai_002_003/background_mesh/34.obj
@@ -0,0 +1,14 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 0.11928675 -3.48473048 -0.30125201
+v 0.11928681 -3.48475933 0.00194825
+v -0.90928710 -3.48475051 0.00193199
+v -0.89224797 -3.48472095 -0.31214336
+vt 0.03467570 1.00000000
+vt 1.00000000 1.00000000
+vt 0.99994820 0.00000000
+vt 0.00000000 0.01656577
+f 4/4 2/2 3/3
+f 2/2 4/4 1/1
+
diff --git a/ai_002_003/background_mesh/35.obj b/ai_002_003/background_mesh/35.obj
new file mode 100644
index 0000000000000000000000000000000000000000..ce467309ca388035003a01521bfb971471f03ff0
--- /dev/null
+++ b/ai_002_003/background_mesh/35.obj
@@ -0,0 +1,14 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 0.28204826 -5.43527365 0.46692765
+v 0.28204826 -5.43533182 1.07307220
+v -0.89231324 -5.43532181 1.07307446
+v -0.89234298 -5.43526411 0.46692717
+vt 0.00000079 1.00000000
+vt 0.99999624 1.00000000
+vt 1.00000000 0.00002528
+vt 0.00000000 0.00000000
+f 1/1 2/2 3/3
+f 3/3 4/4 1/1
+
diff --git a/ai_002_003/background_mesh/36.obj b/ai_002_003/background_mesh/36.obj
new file mode 100644
index 0000000000000000000000000000000000000000..c4b3104e09ad4f4ae6850157536933b3fb317084
--- /dev/null
+++ b/ai_002_003/background_mesh/36.obj
@@ -0,0 +1,222 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 0.10717301 -2.73239303 0.33062732
+v 0.02756434 -2.74335265 0.32178533
+v 0.02755828 -2.88583732 0.20678419
+v -0.15554580 -2.88583732 0.20679383
+v -0.15554318 -2.92853045 0.17233603
+v -0.18371305 -2.92853308 0.17233558
+v -0.18371567 -2.88583732 0.20679532
+v -0.80345255 -2.88583732 0.20682798
+v -0.80344993 -2.92858553 0.17232578
+v -0.83161980 -2.92858791 0.17232533
+v -0.83162242 -2.88583732 0.20682947
+v -0.89218169 -2.88583589 0.20683408
+v -0.83162200 -2.87487698 0.21567571
+v -0.89217931 -2.86391497 0.22452664
+v -0.89217693 -2.84199452 0.24221897
+v -0.83162057 -2.84199595 0.24221440
+v -0.83161640 -2.74335265 0.32183063
+v -0.89216512 -2.73239112 0.33068132
+v -0.90207267 -3.48472404 -0.27653608
+v -0.83164787 -3.48472476 -0.27654028
+v -0.89224195 -3.44481421 -0.24432421
+v -0.83164620 -3.44481540 -0.24432880
+v -0.83164251 -3.35713243 -0.17355882
+v 0.02753823 -3.35713243 -0.17360410
+v 0.02753241 -3.48473215 -0.27659154
+v 0.10720920 -3.48865747 -0.27976322
+v -0.00060737 -2.78719425 0.28640178
+v 0.01347847 -2.76527333 0.30409363
+v -0.01469137 -2.76527333 0.30409512
+v 0.02755631 -2.92851496 0.17233892
+v -0.83162898 -2.92858791 0.17232533
+v -0.83162892 -3.03928232 0.08298208
+v -0.89219820 -3.03928089 0.08298659
+v -0.89220059 -3.06120157 0.06529415
+v -0.83162993 -3.06120300 0.06528961
+v -0.83162844 -3.13968229 0.00194808
+v -0.77528876 -3.13967752 0.00194897
+v -0.77529162 -3.09408402 0.03874794
+v -0.76120383 -3.13967633 0.00194919
+v -0.70486414 -3.13967156 0.00195008
+v -0.70486695 -3.09408402 0.03874423
+v -0.69077921 -3.13967037 0.00195031
+v -0.56401479 -3.13965964 0.00195231
+v -0.56401759 -3.09408402 0.03873681
+v -0.54992986 -3.13965845 0.00195253
+v -0.49359012 -3.13965368 0.00195342
+v -0.49359301 -3.09408402 0.03873309
+v -0.47950518 -3.13965249 0.00195365
+v -0.45133531 -3.13965011 0.00195409
+v -0.45133820 -3.09408402 0.03873086
+v -0.40908343 -3.09408402 0.03872864
+v -0.40908054 -3.13964653 0.00195476
+v -0.39499849 -3.09408402 0.03872789
+v -0.36682862 -3.09408402 0.03872641
+v -0.36682573 -3.13964295 0.00195543
+v -0.26823124 -3.13963461 0.00195699
+v -0.26823413 -3.09408402 0.03872121
+v -0.22597933 -3.09408402 0.03871899
+v -0.22597641 -3.13963103 0.00195765
+v 0.04163728 -3.13960814 0.00196189
+v 0.04163111 -3.13960814 0.00196189
+v -0.83163762 -3.13968229 0.00194808
+v -0.83163595 -3.20368767 -0.04971155
+v -0.89221716 -3.21464634 -0.05855310
+v -0.83163685 -3.22560835 -0.06740402
+v -0.89221835 -3.22560692 -0.06739938
+v -0.89222068 -3.24752760 -0.08509183
+v -0.83163828 -3.25848937 -0.09394271
+v -0.89222306 -3.26944828 -0.10278428
+v -0.83163875 -3.26944971 -0.10278895
+v -0.83164108 -3.32425141 -0.14702010
+v 0.01345469 -3.32425141 -0.14706466
+v 0.01345563 -3.30233073 -0.12937221
+v 0.04162503 -3.31329107 -0.13821989
+vt 0.00006774 0.99999762
+vt 0.07894380 0.98550552
+vt 0.07894380 0.79710013
+vt 0.26036391 0.79710007
+vt 0.26035953 0.74064785
+vt 0.28827032 0.74064445
+vt 0.28827471 0.79710013
+vt 0.90231210 0.79710007
+vt 0.90230763 0.74057496
+vt 0.93021846 0.74057186
+vt 0.93022287 0.79710007
+vt 0.99022520 0.79710215
+vt 0.93022287 0.81159276
+vt 0.99022371 0.82608783
+vt 0.99022228 0.85507298
+vt 0.93022287 0.85507095
+vt 0.93022287 0.98550558
+vt 0.99021524 1.00000000
+vt 1.00000000 0.00520063
+vt 0.93022281 0.00519971
+vt 0.99026138 0.05797325
+vt 0.93022287 0.05797138
+vt 0.93022287 0.17391327
+vt 0.07894380 0.17391327
+vt 0.07894421 0.00518996
+vt 0.00000000 0.00000000
+vt 0.10685460 0.92753440
+vt 0.09289920 0.95652014
+vt 0.12080994 0.95652014
+vt 0.07894398 0.74066830
+vt 0.93022758 0.74057186
+vt 0.93022281 0.59420198
+vt 0.99023509 0.59420395
+vt 0.99023646 0.56521857
+vt 0.93022287 0.56521660
+vt 0.93021810 0.46144459
+vt 0.87439656 0.46145090
+vt 0.87440127 0.52173847
+vt 0.86044115 0.46145245
+vt 0.80461961 0.46145877
+vt 0.80462432 0.52173847
+vt 0.79066420 0.46146035
+vt 0.66506565 0.46147457
+vt 0.66507035 0.52173847
+vt 0.65111023 0.46147612
+vt 0.59528863 0.46148244
+vt 0.59529340 0.52173847
+vt 0.58133322 0.46148404
+vt 0.55342245 0.46148720
+vt 0.55342722 0.52173847
+vt 0.51156110 0.52173847
+vt 0.51155627 0.46149191
+vt 0.49760562 0.52173847
+vt 0.46969485 0.52173847
+vt 0.46969005 0.46149665
+vt 0.37200233 0.46150771
+vt 0.37200710 0.52173847
+vt 0.33014092 0.52173847
+vt 0.33013609 0.46151245
+vt 0.06498356 0.46154261
+vt 0.06498970 0.46154261
+vt 0.93022722 0.46144459
+vt 0.93022287 0.37681112
+vt 0.99024647 0.36232075
+vt 0.93022281 0.34782571
+vt 0.99024719 0.34782779
+vt 0.99024856 0.31884238
+vt 0.93022287 0.30434760
+vt 0.99024999 0.28985700
+vt 0.93022287 0.28985491
+vt 0.93022287 0.21739137
+vt 0.09289920 0.21739140
+vt 0.09289920 0.24637678
+vt 0.06498840 0.23188409
+f 74/74 73/73 72/72
+f 71/71 70/70 69/69
+f 69/69 68/68 67/67
+f 66/66 65/65 64/64
+f 64/64 63/63 62/62
+f 26/26 61/61 74/74
+f 1/1 2/2 3/3
+f 3/3 4/4 5/5
+f 9/9 7/7 8/8
+f 10/10 11/11 12/12
+f 12/12 13/13 14/14
+f 15/15 16/16 17/17
+f 19/19 20/20 21/21
+f 21/21 22/22 23/23
+f 24/24 25/25 26/26
+f 61/61 26/26 1/1
+f 19/19 67/67 66/66
+f 61/61 1/1 3/3
+f 7/7 9/9 6/6
+f 19/19 14/14 15/15
+f 15/15 17/17 18/18
+f 24/24 26/26 74/74
+f 5/5 61/61 3/3
+f 62/62 9/9 10/10
+f 19/19 15/15 18/18
+f 24/24 74/74 72/72
+f 6/6 61/61 5/5
+f 14/14 19/19 12/12
+f 23/23 24/24 72/72
+f 61/61 6/6 62/62
+f 23/23 72/72 71/71
+f 9/9 62/62 6/6
+f 69/69 23/23 71/71
+f 12/12 62/62 10/10
+f 23/23 69/69 21/21
+f 62/62 12/12 64/64
+f 19/19 21/21 69/69
+f 64/64 12/12 19/19
+f 67/67 19/19 69/69
+f 66/66 64/64 19/19
+f 27/27 28/28 29/29
+f 41/41 31/31 32/32
+f 32/32 33/33 34/34
+f 38/38 36/36 37/37
+f 41/41 39/39 40/40
+f 44/44 42/42 43/43
+f 47/47 45/45 46/46
+f 50/50 48/48 49/49
+f 51/51 52/52 53/53
+f 57/57 55/55 56/56
+f 58/58 59/59 60/60
+f 35/35 32/32 34/34
+f 36/36 38/38 35/35
+f 39/39 41/41 38/38
+f 42/42 44/44 41/41
+f 45/45 47/47 44/44
+f 48/48 50/50 47/47
+f 30/30 53/53 54/54
+f 55/55 57/57 54/54
+f 58/58 60/60 30/30
+f 38/38 32/32 35/35
+f 32/32 38/38 41/41
+f 31/31 51/51 30/30
+f 57/57 58/58 30/30
+f 31/31 41/41 44/44
+f 54/54 57/57 30/30
+f 31/31 44/44 47/47
+f 53/53 30/30 51/51
+f 50/50 31/31 47/47
+f 51/51 31/31 50/50
+
diff --git a/ai_002_003/background_mesh/37.obj b/ai_002_003/background_mesh/37.obj
new file mode 100644
index 0000000000000000000000000000000000000000..42821565eefa0fe38fb104f4fac159b5481e4014
--- /dev/null
+++ b/ai_002_003/background_mesh/37.obj
@@ -0,0 +1,14 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 0.18250017 0.80025846 -2.77212286
+v 0.18787083 0.80022311 -0.22499502
+v 0.10700225 0.80022788 -0.22499502
+v 0.10700095 0.80026287 -2.77500486
+vt 0.00113019 0.93358886
+vt 1.00000000 1.00000000
+vt 1.00000000 0.00001603
+vt 0.00000000 0.00000000
+f 1/1 2/2 3/3
+f 3/3 4/4 1/1
+
diff --git a/ai_002_003/background_mesh/38.obj b/ai_002_003/background_mesh/38.obj
new file mode 100644
index 0000000000000000000000000000000000000000..c8f2c788b5825049ecec5eb4f3bfd5b211f822b8
--- /dev/null
+++ b/ai_002_003/background_mesh/38.obj
@@ -0,0 +1,1887 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 0.10727438 -4.84037209 -0.38164902
+v 0.10727506 -4.85452080 -0.39579797
+v 0.10727508 -4.85452080 -0.36750007
+v 0.10727366 -4.82622337 -0.45239365
+v 0.10727229 -4.79792500 -0.48069155
+v 0.10727163 -4.78377628 -0.42409587
+v 0.10727438 -4.84037209 -0.39579797
+v 0.10727417 -4.85452080 -2.15026569
+v 0.10727350 -4.84037209 -2.12196803
+v 0.10727488 -4.86867046 -2.10781908
+v 0.10727554 -4.88281918 -2.15026569
+v 0.10727276 -4.82622337 -2.23515940
+v 0.10727070 -4.78377628 -2.26345730
+v 0.10727073 -4.78377628 -2.20686150
+v 0.10727278 -4.82622337 -2.19271255
+v 0.10727002 -4.76962757 -2.27760625
+v 0.10726864 -4.74132919 -2.29175520
+v 0.10726861 -4.74132919 -2.34835100
+v 0.10727067 -4.78377628 -2.32005310
+v 0.10726858 -4.74132919 -2.40494657
+v 0.10726587 -4.68473339 -2.37664890
+v 0.10726792 -4.72718048 -2.36249971
+v 0.10727546 -4.88281918 -2.32005310
+v 0.10727543 -4.88281918 -2.37664890
+v 0.10727062 -4.78377628 -2.41909552
+v 0.10727206 -4.81207466 -2.29175520
+v 0.10727271 -4.82622337 -2.34835100
+v 0.10694934 1.89452112 -0.40994692
+v 0.10694661 1.95118237 -0.40994698
+v 0.10694680 1.95118284 -0.02792573
+v 0.10694887 1.90866840 0.00218559
+v 0.10695434 1.79547679 0.00218061
+v 0.10695624 1.75558102 -0.02792573
+v 0.10695775 1.72473228 0.00217749
+v 0.10698165 1.22951972 0.00215568
+v 0.10698320 1.19690263 -0.02792585
+v 0.10698506 1.15877473 0.00215257
+v 0.10699599 0.93239200 0.00214260
+v 0.10699768 0.89704859 -0.02792585
+v 0.10699940 0.86164749 0.00213948
+v 0.10700235 0.80022514 -0.02792597
+v 0.10700418 0.76260459 0.00213512
+v 0.10702398 0.35228574 0.00211705
+v 0.10702572 0.31587076 -0.02792573
+v 0.10702740 0.28154075 0.00211393
+v 0.10705403 -0.27026749 0.00208963
+v 0.10705601 -0.31174427 -0.02792573
+v 0.10705813 -0.35516119 0.00208589
+v 0.10710593 -1.34558654 0.00204227
+v 0.10710771 -1.38301110 -0.02792573
+v 0.10710934 -1.41633117 0.00203915
+v 0.10712026 -1.64271414 0.00202918
+v 0.10712231 -1.68563545 -0.02792573
+v 0.10712436 -1.72760785 0.00202545
+v 0.10719196 -3.12835264 0.00196375
+v 0.10719533 -3.19880366 -0.04581869
+v 0.10719674 -3.22739506 0.00195939
+v 0.10720766 -3.45377779 0.00194942
+v 0.10720914 -3.48475671 -0.02792728
+v 0.10721108 -3.52452278 0.00194631
+v 0.10727731 -4.89696980 0.00188586
+v 0.10727715 -4.89696836 -0.30123293
+v 0.10727442 -4.84037161 -0.30123368
+v 0.10727713 -4.89696789 -0.35335112
+v 0.10727708 -4.89696789 -0.45239365
+v 0.10727571 -4.86867046 -0.45239365
+v 0.10727707 -4.89696789 -0.46654260
+v 0.10727697 -4.89696789 -0.67877662
+v 0.10727492 -4.85452080 -0.67877662
+v 0.10727696 -4.89696789 -0.69292557
+v 0.10727694 -4.89696789 -0.73537236
+v 0.10727347 -4.82622337 -0.83441490
+v 0.10727482 -4.85452080 -0.89101064
+v 0.10727140 -4.78377628 -0.87686169
+v 0.10727207 -4.79792500 -0.91930854
+v 0.10727412 -4.84037209 -0.90515959
+v 0.10727476 -4.85452080 -0.99005318
+v 0.10727690 -4.89696789 -0.80611700
+v 0.10727663 -4.89696789 -1.34377658
+v 0.10727522 -4.86837578 -1.39335155
+v 0.10727786 -4.92369699 -1.43800163
+v 0.10727581 -4.88281918 -1.61260629
+v 0.10727631 -4.89696789 -1.99462748
+v 0.10727423 -4.85452080 -2.03707433
+v 0.10727625 -4.89696789 -2.09367013
+v 0.10727617 -4.89696789 -2.24930835
+v 0.10727480 -4.86867046 -2.26345730
+v 0.10727615 -4.89696789 -2.30590415
+v 0.10727594 -4.89696836 -2.70557857
+v 0.10703491 0.09760535 -2.70564508
+v 0.10703426 0.11175513 -2.64547849
+v 0.10700205 0.80023330 -0.62218094
+v 0.10727202 -4.79792500 -1.00420213
+v 0.10727408 -4.84037209 -0.99005318
+v 0.10727334 -4.82622337 -1.08909571
+v 0.10695605 1.75558054 -0.39579803
+v 0.10696101 1.65398967 -0.30132046
+v 0.10700222 0.80022866 -0.28260636
+v 0.10700217 0.80023003 -0.38164967
+v 0.10701223 0.57866991 -1.62675524
+v 0.10712501 -1.74175549 -0.05622339
+v 0.10712230 -1.68563545 -0.04207444
+v 0.10712573 -1.75590634 0.00202420
+v 0.10720419 -3.38303185 -0.11281919
+v 0.10720141 -3.32597065 -0.14845681
+v 0.10720283 -3.35473394 -0.09867024
+v 0.10724204 -4.18952084 -2.22101045
+v 0.10723931 -4.13292503 -2.23515940
+v 0.10724001 -4.14707470 -2.17856359
+v 0.10724277 -4.20367050 -2.13611698
+v 0.10724140 -4.17537212 -2.15026569
+v 0.10724142 -4.17537212 -2.10781908
+v 0.10724279 -4.20367050 -2.10781908
+v 0.10724089 -4.16122341 -1.79654241
+v 0.10723951 -4.13292503 -1.82484031
+v 0.10723954 -4.13292503 -1.78239346
+v 0.10724091 -4.16122341 -1.76824462
+v 0.10725445 -4.43005276 -0.63632983
+v 0.10725379 -4.41590405 -0.60803193
+v 0.10725105 -4.35930824 -0.62218088
+v 0.10725111 -4.35930824 -0.50898933
+v 0.10724974 -4.33101082 -0.50898933
+v 0.10724901 -4.31686115 -0.59388298
+v 0.10724697 -4.27441502 -0.59388298
+v 0.10724692 -4.27441502 -0.67877662
+v 0.10724351 -4.20367050 -0.67877662
+v 0.10724285 -4.18952084 -0.62218088
+v 0.10724144 -4.16122341 -0.70707446
+v 0.10724555 -4.24611664 -0.69292557
+v 0.10724552 -4.24611664 -0.74952132
+v 0.10724621 -4.26026535 -0.72122341
+v 0.10724895 -4.31686115 -0.72122341
+v 0.10724822 -4.30271244 -0.80611700
+v 0.10724685 -4.27441502 -0.80611700
+v 0.10724675 -4.27341986 -0.91315508
+v 0.10724821 -4.30271244 -0.83441490
+v 0.10724958 -4.33101082 -0.83441490
+v 0.10725030 -4.34515953 -0.74952132
+v 0.10725234 -4.38760662 -0.74952132
+v 0.10725100 -4.35930824 -0.70707446
+v 0.10724604 -4.26026535 -1.06079781
+v 0.10724539 -4.24611664 -1.01835108
+v 0.10724334 -4.20367050 -1.00420213
+v 0.10724825 -4.30469036 -0.93839383
+v 0.10724600 -4.26026535 -1.13154256
+v 0.10724464 -4.23196793 -1.13154256
+v 0.10724460 -4.23196793 -1.23058510
+v 0.10724322 -4.20367050 -1.25888300
+v 0.10724324 -4.20367050 -1.21643615
+v 0.10724188 -4.17537212 -1.21643615
+v 0.10724393 -4.21781921 -1.20228720
+v 0.10724329 -4.20367050 -1.10324466
+v 0.10724466 -4.23196793 -1.10324466
+v 0.10724536 -4.24611664 -1.06079781
+v 0.10724319 -4.20367050 -1.31547868
+v 0.10724182 -4.17537212 -1.32962763
+v 0.10724253 -4.18952084 -1.25888300
+v 0.10724414 -4.21781921 -0.77781916
+v 0.10724617 -4.26026535 -0.80611700
+v 0.10724223 -4.17887163 -0.83684373
+v 0.10724388 -4.21344709 -0.86475015
+v 0.10724134 -4.16122341 -0.91930854
+v 0.10724265 -4.18774366 -0.84400439
+v 0.10724347 -4.20487833 -0.85783434
+v 0.10723951 -4.12220287 -0.79110575
+v 0.10724000 -4.13242292 -0.79935479
+v 0.10724210 -4.17537212 -0.76367021
+v 0.10724074 -4.14790535 -0.81185055
+v 0.10724433 -4.21781921 -0.40994692
+v 0.10724231 -4.17537212 -0.35335112
+v 0.10724504 -4.23196793 -0.35335112
+v 0.10724574 -4.24611616 -0.30124161
+v 0.10724638 -4.26026535 -0.38164902
+v 0.10724434 -4.21781921 -0.38164902
+v 0.10724770 -4.28856373 -0.49484038
+v 0.10724633 -4.26026535 -0.49484038
+v 0.10724631 -4.26026535 -0.53728724
+v 0.10724566 -4.24611664 -0.48069155
+v 0.10724225 -4.17537212 -0.48069155
+v 0.10724155 -4.16122341 -0.50898933
+v 0.10724296 -4.18952084 -0.40994692
+v 0.10724361 -4.20367050 -0.46654260
+v 0.10724702 -4.27441502 -0.46654260
+v 0.10724773 -4.28856373 -0.43824470
+v 0.10724423 -4.21781921 -0.60803193
+v 0.10724288 -4.18952084 -0.56558514
+v 0.10724563 -4.24611664 -0.53728724
+v 0.10724628 -4.26026535 -0.59388298
+v 0.10724814 -4.31686115 -2.32005310
+v 0.10724748 -4.30271244 -2.27760625
+v 0.10724886 -4.33101082 -2.26345730
+v 0.10724063 -4.16122341 -2.32005310
+v 0.10724339 -4.21781921 -2.27760625
+v 0.10724273 -4.20367050 -2.22101045
+v 0.10724547 -4.26026535 -2.19271255
+v 0.10724544 -4.26026535 -2.26345730
+v 0.10724680 -4.28856373 -2.27760625
+v 0.10724475 -4.24611664 -2.27760625
+v 0.10724472 -4.24611664 -2.33420205
+v 0.10724746 -4.30271244 -2.32005310
+v 0.10724742 -4.30271244 -2.39079762
+v 0.10724264 -4.20367050 -2.40494657
+v 0.10724336 -4.21781921 -2.33420205
+v 0.10724130 -4.17537212 -2.34835100
+v 0.10724170 -4.17537212 -1.57015955
+v 0.10724031 -4.14707470 -1.59845734
+v 0.10724103 -4.16122341 -1.51356375
+v 0.10724616 -4.27441502 -2.17856359
+v 0.10724752 -4.30271244 -2.17856359
+v 0.10724687 -4.28856373 -2.13611698
+v 0.10724549 -4.26026535 -2.15026569
+v 0.10724825 -4.31686115 -2.10781908
+v 0.10724690 -4.28856373 -2.07952118
+v 0.10724835 -4.31686115 -1.90973401
+v 0.10724632 -4.27441502 -1.85313821
+v 0.10725128 -4.37345695 -1.51356375
+v 0.10725404 -4.43005276 -1.44281912
+v 0.10725329 -4.41590405 -1.59845734
+v 0.10725465 -4.44420242 -1.59845734
+v 0.10725462 -4.44420242 -1.65505314
+v 0.10725185 -4.38760662 -1.72579777
+v 0.10725181 -4.38760662 -1.81069136
+v 0.10724974 -4.34515953 -1.83898926
+v 0.10724971 -4.34515953 -1.89558506
+v 0.10725109 -4.37345695 -1.90973401
+v 0.10724904 -4.33101082 -1.90973401
+v 0.10724967 -4.34515953 -1.99462748
+v 0.10724831 -4.31686115 -1.99462748
+v 0.10725030 -4.35930824 -2.10781908
+v 0.10725057 -4.35930824 -1.57015955
+v 0.10725126 -4.37345695 -1.55601060
+v 0.10724638 -4.27441502 -1.75409567
+v 0.10724292 -4.20367050 -1.83898926
+v 0.10724359 -4.21781921 -1.86728716
+v 0.10724756 -4.30271244 -2.10781908
+v 0.10724220 -4.18952084 -1.90973401
+v 0.10724152 -4.17537212 -1.92388296
+v 0.10724288 -4.20367050 -1.92388296
+v 0.10724289 -4.20367050 -1.89558506
+v 0.10724554 -4.26026535 -2.05122328
+v 0.10724282 -4.20367050 -2.03707433
+v 0.10724279 -4.20367050 -2.09367013
+v 0.10724936 -4.33101082 -1.25888300
+v 0.10724730 -4.28856373 -1.28718078
+v 0.10724732 -4.28856373 -1.24473405
+v 0.10724659 -4.27441502 -1.32962763
+v 0.10724521 -4.24611664 -1.37207437
+v 0.10724523 -4.24611664 -1.32962763
+v 0.10724842 -4.30271244 -0.40994692
+v 0.10724775 -4.28856373 -0.38164902
+v 0.10724982 -4.33101082 -0.35335112
+v 0.10725047 -4.34515953 -0.40994692
+v 0.10724916 -4.31686115 -0.30124068
+v 0.10725053 -4.34515905 -0.30124030
+v 0.10725050 -4.34515953 -0.35335112
+v 0.10725087 -4.37345695 -2.33420205
+v 0.10725293 -4.41590405 -2.32005310
+v 0.10725222 -4.40175533 -2.36249971
+v 0.10725297 -4.40175533 -0.87686169
+v 0.10725230 -4.38760662 -0.84856385
+v 0.10725368 -4.41590405 -0.82026595
+v 0.10725433 -4.43005276 -0.87686169
+v 0.10724889 -4.31821585 -0.94931030
+v 0.10724971 -4.33535147 -0.96314073
+v 0.10725159 -4.37345695 -0.90515959
+v 0.10725162 -4.38760662 -2.17856359
+v 0.10725098 -4.37345695 -2.10781908
+v 0.10725304 -4.41590405 -2.09367013
+v 0.10725369 -4.43005276 -2.15026569
+v 0.10725164 -4.38760662 -2.15026569
+v 0.10725160 -4.38760662 -2.22101045
+v 0.10724954 -4.34515953 -2.23515940
+v 0.10724889 -4.33101082 -2.19271255
+v 0.10725094 -4.37345695 -2.17856359
+v 0.10725141 -4.37345695 -1.27303195
+v 0.10725347 -4.41590405 -1.24473405
+v 0.10725412 -4.43005276 -1.30132973
+v 0.10725206 -4.38760662 -1.31547868
+v 0.10725455 -4.43005276 -0.43824470
+v 0.10725249 -4.38760662 -0.45239365
+v 0.10725184 -4.37345695 -0.40994692
+v 0.10725390 -4.41590405 -0.38164902
+v 0.10725593 -4.47249985 -1.76824462
+v 0.10725661 -4.48664856 -1.78239346
+v 0.10725662 -4.48664856 -1.75409567
+v 0.10725521 -4.45835114 -1.85313821
+v 0.10725383 -4.43005276 -1.86728716
+v 0.10725454 -4.44420242 -1.81069136
+v 0.10725658 -4.48664856 -1.83898926
+v 0.10725667 -4.47249937 -0.30123860
+v 0.10725530 -4.44420195 -0.30123898
+v 0.10725528 -4.44420242 -0.35335112
+v 0.10725462 -4.43005228 -0.30123916
+v 0.10725325 -4.40175486 -0.30123955
+v 0.10725641 -4.48664856 -2.16441488
+v 0.10725570 -4.47249985 -2.20686150
+v 0.10725776 -4.51494694 -2.19271255
+v 0.10725780 -4.51494694 -2.12196803
+v 0.10725500 -4.45835114 -2.27760625
+v 0.10725293 -4.41590405 -2.30590415
+v 0.10725296 -4.41590405 -2.23515940
+v 0.10725502 -4.45835114 -2.22101045
+v 0.10725500 -4.45835114 -2.26345730
+v 0.10725637 -4.48664856 -2.26345730
+v 0.10726122 -4.58569145 -2.10781908
+v 0.10725850 -4.52909565 -2.09367013
+v 0.10725782 -4.51494694 -2.07952118
+v 0.10726057 -4.57154274 -2.05122328
+v 0.10726060 -4.57154274 -1.99462748
+v 0.10726197 -4.59984016 -1.98047853
+v 0.10726534 -4.67058468 -2.06537223
+v 0.10726603 -4.68473339 -2.05122328
+v 0.10726399 -4.64228725 -2.03707433
+v 0.10726396 -4.64228725 -2.09367013
+v 0.10726462 -4.65643597 -2.15026569
+v 0.10726187 -4.59984016 -2.17856359
+v 0.10726327 -4.62813854 -2.09367013
+v 0.10726115 -4.58569145 -2.23515940
+v 0.10726252 -4.61398888 -2.23515940
+v 0.10725980 -4.55739307 -2.20686150
+v 0.10725978 -4.55739307 -2.24930835
+v 0.10725767 -4.51494694 -2.37664890
+v 0.10725493 -4.45835114 -2.40494657
+v 0.10725495 -4.45835114 -2.36249971
+v 0.10725699 -4.50079727 -2.36249971
+v 0.10725701 -4.50079727 -2.33420205
+v 0.10725427 -4.44420242 -2.36249971
+v 0.10725359 -4.43005276 -2.34835100
+v 0.10725496 -4.45835114 -2.34835100
+v 0.10725975 -4.55739307 -2.32005310
+v 0.10725769 -4.51494694 -2.33420205
+v 0.10725703 -4.50079727 -2.29175520
+v 0.10725909 -4.54324436 -2.24930835
+v 0.10725375 -4.43005276 -2.03707433
+v 0.10725373 -4.43005276 -2.06537223
+v 0.10725578 -4.47249985 -2.06537223
+v 0.10725567 -4.45835114 -0.94760638
+v 0.10725234 -4.39036751 -1.00754476
+v 0.10725349 -4.41441822 -1.02695656
+v 0.10725565 -4.45835114 -0.99005318
+v 0.10725643 -4.47249985 -0.77781916
+v 0.10725438 -4.43005276 -0.77781916
+v 0.10725439 -4.43005276 -0.74952132
+v 0.10725577 -4.45835114 -0.73537236
+v 0.10725519 -4.44420242 -0.53728724
+v 0.10725449 -4.43005276 -0.56558514
+v 0.10725790 -4.50079727 -0.56558514
+v 0.10725587 -4.45835114 -0.55143619
+v 0.10725589 -4.45835114 -0.50898933
+v 0.10726073 -4.55739307 -0.36750007
+v 0.10725867 -4.51494694 -0.39579797
+v 0.10725735 -4.48664808 -0.30123842
+v 0.10726077 -4.55739307 -0.30123746
+v 0.10725591 -4.45835114 -0.45239365
+v 0.10725863 -4.51494694 -0.46654260
+v 0.10725658 -4.47249985 -0.48069155
+v 0.10725590 -4.45835114 -0.49484038
+v 0.10725657 -4.47249985 -0.50898933
+v 0.10727169 -4.78377581 -0.30123442
+v 0.10727033 -4.75547838 -0.30123481
+v 0.10726961 -4.74132919 -0.36750007
+v 0.10726896 -4.72718048 -0.30123520
+v 0.10727026 -4.75547886 -0.42409587
+v 0.10726752 -4.69888306 -0.45239365
+v 0.10726687 -4.68473339 -0.39579797
+v 0.10726749 -4.69888306 -0.52313828
+v 0.10726684 -4.68473339 -0.45239365
+v 0.10726476 -4.64228725 -0.50898933
+v 0.10726544 -4.65643597 -0.53728724
+v 0.10726400 -4.62813854 -0.66462767
+v 0.10726255 -4.59984016 -0.82026595
+v 0.10726462 -4.64228725 -0.79196811
+v 0.10726460 -4.64228725 -0.83441490
+v 0.10726253 -4.59984016 -0.87686169
+v 0.10726319 -4.61398888 -0.93345743
+v 0.10726114 -4.57154274 -0.93345743
+v 0.10726043 -4.55739307 -0.97590423
+v 0.10726176 -4.58569145 -1.03250003
+v 0.10725903 -4.52909565 -1.04664898
+v 0.10725905 -4.52909565 -1.00420213
+v 0.10725701 -4.48664856 -0.99005318
+v 0.10725974 -4.54324436 -0.99005318
+v 0.10725978 -4.54324436 -0.90515959
+v 0.10726117 -4.57154274 -0.87686169
+v 0.10726190 -4.58569145 -0.74952132
+v 0.10726054 -4.55739307 -0.74952132
+v 0.10726057 -4.55739307 -0.69292557
+v 0.10726193 -4.58569145 -0.69292557
+v 0.10726405 -4.62813854 -0.56558514
+v 0.10725687 -4.48491716 -1.08385706
+v 0.10726099 -4.57154274 -1.23058510
+v 0.10725824 -4.51494694 -1.25888300
+v 0.10725616 -4.47249985 -1.31547868
+v 0.10725480 -4.44420242 -1.31547868
+v 0.10725617 -4.47249985 -1.30132973
+v 0.10725554 -4.45835114 -1.20228720
+v 0.10725690 -4.48664856 -1.20228720
+v 0.10725692 -4.48664856 -1.15984035
+v 0.10725910 -4.53166914 -1.12159133
+v 0.10725757 -4.50079727 -1.21643615
+v 0.10726098 -4.57154274 -1.24473405
+v 0.10725683 -4.48664856 -1.34377658
+v 0.10726062 -4.55739307 -0.59388298
+v 0.10725857 -4.51494694 -0.60803193
+v 0.10725997 -4.54324436 -0.53728724
+v 0.10726063 -4.55739307 -0.57973409
+v 0.10726199 -4.58569145 -0.57973409
+v 0.10725787 -4.50079727 -0.62218088
+v 0.10725855 -4.51494694 -0.63632983
+v 0.10725715 -4.48664856 -0.70707446
+v 0.10725513 -4.44420242 -0.65047872
+v 0.10725787 -4.50079727 -0.63632983
+v 0.10725813 -4.51494694 -1.47111702
+v 0.10725880 -4.52909565 -1.48526585
+v 0.10725882 -4.52909565 -1.45696807
+v 0.10725982 -4.54324436 -0.80611700
+v 0.10725845 -4.51494694 -0.83441490
+v 0.10725779 -4.50079727 -0.77781916
+v 0.10726053 -4.55739307 -0.76367021
+v 0.10725842 -4.51494694 -0.89101064
+v 0.10725636 -4.47249985 -0.91930854
+v 0.10725777 -4.50079727 -0.83441490
+v 0.10727112 -4.78377628 -1.42867017
+v 0.10727046 -4.76962757 -1.38622332
+v 0.10727260 -4.81366396 -1.34919286
+v 0.10726975 -4.75547886 -1.44281912
+v 0.10727043 -4.76962757 -1.45696807
+v 0.10727044 -4.76962757 -1.42867017
+v 0.10726903 -4.74132919 -1.49941480
+v 0.10726697 -4.69888306 -1.55601060
+v 0.10726769 -4.71303177 -1.47111702
+v 0.10726974 -4.75547886 -1.45696807
+v 0.10726278 -4.61398888 -1.72579777
+v 0.10726551 -4.67058468 -1.72579777
+v 0.10725791 -4.51494694 -1.89558506
+v 0.10725930 -4.54324436 -1.83898926
+v 0.10726064 -4.57154274 -1.89558506
+v 0.10726274 -4.61398888 -1.81069136
+v 0.10726140 -4.58569145 -1.75409567
+v 0.10726206 -4.59984016 -1.79654241
+v 0.10726685 -4.69888306 -1.78239346
+v 0.10726684 -4.69888306 -1.81069136
+v 0.10726477 -4.65643597 -1.83898926
+v 0.10726473 -4.65643597 -1.93803179
+v 0.10726198 -4.59984016 -1.96632969
+v 0.10726132 -4.58569145 -1.89558506
+v 0.10726339 -4.62813854 -1.86728716
+v 0.10726412 -4.62813854 -0.40994692
+v 0.10726210 -4.58569145 -0.36750007
+v 0.10726415 -4.62813854 -0.36750007
+v 0.10726555 -4.65643549 -0.30123612
+v 0.10726618 -4.67058468 -0.39579797
+v 0.10726066 -4.55739307 -0.52313828
+v 0.10726000 -4.54324436 -0.46654260
+v 0.10726275 -4.59984016 -0.43824470
+v 0.10726341 -4.61398888 -0.49484038
+v 0.10726585 -4.67266703 -1.23539233
+v 0.10726230 -4.59984016 -1.32962763
+v 0.10726234 -4.59984016 -1.24473405
+v 0.10726437 -4.64170074 -1.21039915
+v 0.10726219 -4.59984016 -1.55601060
+v 0.10726149 -4.58569145 -1.57015955
+v 0.10726150 -4.58569145 -1.54186165
+v 0.10727078 -4.78377628 -2.10781908
+v 0.10726803 -4.72718048 -2.15026569
+v 0.10727013 -4.76962757 -2.05122328
+v 0.10726732 -4.71303177 -2.19271255
+v 0.10726597 -4.68473339 -2.16441488
+v 0.10726593 -4.68473339 -2.23515940
+v 0.10726592 -4.68473339 -2.27760625
+v 0.10726386 -4.64228725 -2.30590415
+v 0.10726388 -4.64228725 -2.24930835
+v 0.10726383 -4.64228725 -2.36249971
+v 0.10726177 -4.59984016 -2.37664890
+v 0.10726317 -4.62813854 -2.30590415
+v 0.10726395 -4.63282919 -1.20323896
+v 0.10726280 -4.60877848 -1.18382716
+v 0.10726579 -4.67058468 -1.15984035
+v 0.10726588 -4.67058468 -0.99005318
+v 0.10726386 -4.62813854 -0.93345743
+v 0.10726660 -4.68473339 -0.91930854
+v 0.10726726 -4.69888306 -0.97590423
+v 0.10727145 -4.78377628 -0.77781916
+v 0.10727147 -4.78377628 -0.73537236
+v 0.10726941 -4.74132919 -0.74952132
+v 0.10727008 -4.75547886 -0.79196811
+v 0.10726731 -4.69888306 -0.87686169
+v 0.10726935 -4.74132919 -0.87686169
+v 0.10726938 -4.74132919 -0.82026595
+v 0.10726532 -4.65643597 -0.76367021
+v 0.10726602 -4.67058468 -0.70707446
+v 0.10726806 -4.71303177 -0.73537236
+v 0.10727195 -4.79792500 -1.14569139
+v 0.10727197 -4.79792500 -1.10324466
+v 0.10727401 -4.84037209 -1.11739361
+v 0.10727193 -4.79792500 -1.18813825
+v 0.10727121 -4.78377628 -1.25888300
+v 0.10726921 -4.74286079 -1.29204679
+v 0.10726765 -4.71024227 -1.26571989
+v 0.10726847 -4.72737885 -1.27955103
+v 0.10726987 -4.75547886 -1.21643615
+v 0.10727123 -4.78377628 -1.21643615
+v 0.10727126 -4.78377628 -1.14569139
+v 0.10726708 -4.69888306 -1.32962763
+v 0.10726930 -4.74481821 -1.29362655
+v 0.10726848 -4.72768307 -1.27979660
+v 0.10726879 -4.72718048 -0.65047872
+v 0.10726741 -4.69888306 -0.67877662
+v 0.10726744 -4.69888306 -0.62218088
+v 0.10726950 -4.74132919 -0.59388298
+v 0.10727084 -4.76962757 -0.65047872
+v 0.10727088 -4.78377628 -1.89558506
+v 0.10726883 -4.74132919 -1.89558506
+v 0.10726818 -4.72718048 -1.85313821
+v 0.10727091 -4.78377628 -1.83898926
+v 0.10727021 -4.75547886 -0.53728724
+v 0.10726953 -4.74132919 -0.52313828
+v 0.10727159 -4.78377628 -0.50898933
+v 0.10727225 -4.79792500 -0.55143619
+v 0.10727020 -4.75547886 -0.56558514
+v 0.10727298 -4.82622337 -1.81069136
+v 0.10727161 -4.79792500 -1.81069136
+v 0.10727233 -4.81207466 -1.75409567
+v 0.10727298 -4.82622337 -1.79654241
+v 0.10727435 -4.85452080 -1.79654241
+v 0.10727566 -4.86867046 -0.55143619
+v 0.10727361 -4.82622337 -0.56558514
+v 0.10727564 -4.86867046 -0.59388298
+v 0.10727355 -4.82622337 -0.67877662
+v 0.10727218 -4.79792500 -0.69292557
+v 0.10727151 -4.78377628 -0.65047872
+v 0.10727426 -4.84037209 -0.62218088
+v 0.10727519 -4.86867046 -1.48526585
+v 0.10727452 -4.85452080 -1.45696807
+v 0.10727672 -4.89964676 -1.41859055
+v 0.10727531 -4.86867046 -1.25888300
+v 0.10727393 -4.84037209 -1.28718078
+v 0.10727327 -4.82622337 -1.23058510
+v 0.10727601 -4.88281918 -1.21643615
+v 0.10726894 -4.73727751 -1.28754044
+v 0.10725012 -4.34391832 -0.97005534
+v 0.10726837 -4.72530079 -1.27787375
+v 0.10726848 -4.72768307 -1.27979660
+v 0.10726848 -4.72768307 -1.27979660
+v 0.10726022 -4.55582142 -1.23844564
+v 0.10725910 -4.53166914 -1.12159133
+v 0.10725928 -4.53617001 -1.23058510
+v 0.10725910 -4.53166914 -1.12159133
+v 0.10725910 -4.53166914 -1.12159133
+v 0.10724875 -4.32684946 -2.06454062
+v 0.10724676 -4.27372503 -0.91340113
+v 0.10724675 -4.27341986 -0.91315508
+v 0.10724329 -4.20126915 -0.85492134
+v 0.10724282 -4.19140005 -0.84695554
+v 0.10725168 -4.38194656 -1.53903198
+v 0.10725126 -4.37345695 -1.55601108
+v 0.10725079 -4.36402464 -1.57487595
+v 0.10724539 -4.25460625 -1.81352091
+v 0.10725761 -4.50039959 -1.09635329
+v 0.10726801 -4.71775103 -1.27178049
+v 0.10725910 -4.53166914 -1.12159133
+v 0.10724675 -4.27341986 -0.91315508
+v 0.10724675 -4.27341986 -0.91315508
+v 0.10724675 -4.27341986 -0.91315508
+v 0.10724329 -4.20126915 -0.85492110
+v 0.10724329 -4.20126915 -0.85492134
+vt 0.85825145 0.01212020
+vt 0.85302627 0.01006217
+vt 0.86347657 0.01006217
+vt 0.83212578 0.01417823
+vt 0.82167548 0.01829443
+vt 0.84257597 0.02035246
+vt 0.85302627 0.01212020
+vt 0.20510851 0.01006217
+vt 0.21555872 0.01212020
+vt 0.22078386 0.00800400
+vt 0.20510851 0.00594597
+vt 0.17375761 0.01417823
+vt 0.16330731 0.02035246
+vt 0.18420790 0.02035246
+vt 0.18943305 0.01417823
+vt 0.15808216 0.02241049
+vt 0.15285701 0.02652669
+vt 0.13195641 0.02652669
+vt 0.14240670 0.02035246
+vt 0.11105590 0.02652669
+vt 0.12150611 0.03475895
+vt 0.12673135 0.02858472
+vt 0.14240670 0.00594597
+vt 0.12150611 0.00594597
+vt 0.10583074 0.02035246
+vt 0.15285701 0.01623626
+vt 0.13195641 0.01417823
+vt 0.84780115 0.99175817
+vt 0.84780115 1.00000000
+vt 0.98888004 1.00000000
+vt 1.00000000 0.99381590
+vt 0.99999815 0.97735143
+vt 0.98888004 0.97154838
+vt 0.99999702 0.96706110
+vt 0.99998897 0.89502895
+vt 0.98887992 0.89028460
+vt 0.99998778 0.88473862
+vt 0.99998409 0.85180962
+vt 0.98887992 0.84666866
+vt 0.99998301 0.84151930
+vt 0.98887992 0.83258498
+vt 0.99998140 0.82711279
+vt 0.99997473 0.76742911
+vt 0.98888004 0.76213229
+vt 0.99997348 0.75713867
+vt 0.99996454 0.67687428
+vt 0.98888004 0.67084122
+vt 0.99996322 0.66452593
+vt 0.99994707 0.52046150
+vt 0.98888004 0.51501787
+vt 0.99994594 0.51017118
+vt 0.99994224 0.47724223
+vt 0.98888004 0.47099897
+vt 0.99994093 0.46489385
+vt 0.99991804 0.26114556
+vt 0.98227215 0.25089797
+vt 0.99991643 0.24673913
+vt 0.99991274 0.21381016
+vt 0.98887938 0.20930406
+vt 0.99991167 0.20351981
+vt 0.99988931 0.00388766
+vt 0.88794881 0.00388787
+vt 0.88794845 0.01212027
+vt 0.86870176 0.00388794
+vt 0.83212578 0.00388794
+vt 0.83212578 0.00800400
+vt 0.82690054 0.00388794
+vt 0.74852341 0.00388794
+vt 0.74852341 0.01006217
+vt 0.74329835 0.00388794
+vt 0.72762287 0.00388794
+vt 0.69104683 0.01417823
+vt 0.67014629 0.01006217
+vt 0.67537141 0.02035246
+vt 0.65969598 0.01829443
+vt 0.66492110 0.01212020
+vt 0.63357025 0.01006217
+vt 0.70149714 0.00388794
+vt 0.50294167 0.00388794
+vt 0.48463380 0.00804686
+vt 0.46814471 0.00000000
+vt 0.40366393 0.00594597
+vt 0.26258507 0.00388794
+vt 0.24690962 0.01006217
+vt 0.22600901 0.00388794
+vt 0.16853246 0.00388794
+vt 0.16330731 0.00800400
+vt 0.14763185 0.00388794
+vt 0.00003372 0.00388787
+vt 0.00000916 0.73038399
+vt 0.02222844 0.73244214
+vt 0.76942396 0.83258623
+vt 0.62834513 0.01829443
+vt 0.63357025 0.01212020
+vt 0.59699428 0.01417823
+vt 0.85302627 0.97154826
+vt 0.88791645 0.95677108
+vt 0.89482749 0.83258557
+vt 0.85825115 0.83258575
+vt 0.39843878 0.80035830
+vt 0.97842979 0.46283594
+vt 0.98365498 0.47099897
+vt 0.99994040 0.46077761
+vt 0.95752919 0.22410066
+vt 0.94436836 0.23240063
+vt 0.96275437 0.22821680
+vt 0.17898275 0.10679112
+vt 0.17375761 0.11502339
+vt 0.19465820 0.11296522
+vt 0.21033357 0.10473296
+vt 0.20510851 0.10884915
+vt 0.22078386 0.10884915
+vt 0.22078386 0.10473296
+vt 0.33573708 0.11090719
+vt 0.32528678 0.11502339
+vt 0.34096223 0.11502339
+vt 0.34618732 0.11090719
+vt 0.76419884 0.07180405
+vt 0.77464914 0.07386208
+vt 0.76942396 0.08209434
+vt 0.81122518 0.08209434
+vt 0.81122518 0.08621041
+vt 0.77987427 0.08826858
+vt 0.77987427 0.09444267
+vt 0.74852341 0.09444267
+vt 0.74852341 0.10473296
+vt 0.76942396 0.10679112
+vt 0.73807317 0.11090719
+vt 0.74329835 0.09855887
+vt 0.72239774 0.09855887
+vt 0.73284805 0.09650084
+vt 0.73284805 0.08826858
+vt 0.70149714 0.09032661
+vt 0.70149714 0.09444267
+vt 0.66196841 0.09458742
+vt 0.69104683 0.09032661
+vt 0.69104683 0.08621041
+vt 0.72239774 0.08415238
+vt 0.72239774 0.07797814
+vt 0.73807317 0.08209434
+vt 0.60744458 0.09650084
+vt 0.62311995 0.09855887
+vt 0.62834513 0.10473296
+vt 0.65264785 0.09003890
+vt 0.58131880 0.09650084
+vt 0.58131880 0.10061689
+vt 0.54474282 0.10061689
+vt 0.53429252 0.10473296
+vt 0.54996794 0.10473296
+vt 0.54996794 0.10884915
+vt 0.55519313 0.10267492
+vt 0.59176910 0.10473296
+vt 0.59176910 0.10061689
+vt 0.60744458 0.09855887
+vt 0.51339197 0.10473296
+vt 0.50816679 0.10884915
+vt 0.53429252 0.10679112
+vt 0.71194744 0.10267492
+vt 0.70149714 0.09650084
+vt 0.69014990 0.10834013
+vt 0.67984414 0.10331088
+vt 0.65969598 0.11090719
+vt 0.68750548 0.10704963
+vt 0.68239814 0.10455727
+vt 0.70704073 0.11658300
+vt 0.70399439 0.11509642
+vt 0.71717256 0.10884915
+vt 0.69937974 0.11284439
+vt 0.84780115 0.10267492
+vt 0.86870176 0.10884915
+vt 0.86870176 0.10061689
+vt 0.88794559 0.09855893
+vt 0.85825145 0.09650084
+vt 0.85825145 0.10267492
+vt 0.81645036 0.09238464
+vt 0.81645036 0.09650084
+vt 0.80077487 0.09650084
+vt 0.82167548 0.09855887
+vt 0.82167548 0.10884915
+vt 0.81122518 0.11090719
+vt 0.84780115 0.10679112
+vt 0.82690054 0.10473296
+vt 0.82690054 0.09444267
+vt 0.83735085 0.09238464
+vt 0.77464914 0.10267492
+vt 0.79032457 0.10679112
+vt 0.80077487 0.09855887
+vt 0.77987427 0.09650084
+vt 0.14240670 0.08826858
+vt 0.15808216 0.09032661
+vt 0.16330731 0.08621041
+vt 0.14240670 0.11090719
+vt 0.15808216 0.10267492
+vt 0.17898275 0.10473296
+vt 0.18943305 0.09650084
+vt 0.16330731 0.09650084
+vt 0.15808216 0.09238464
+vt 0.15808216 0.09855887
+vt 0.13718155 0.09855887
+vt 0.14240670 0.09032661
+vt 0.11628105 0.09032661
+vt 0.11105590 0.10473296
+vt 0.13718155 0.10267492
+vt 0.13195641 0.10884915
+vt 0.41933933 0.10884915
+vt 0.40888909 0.11296522
+vt 0.44023994 0.11090719
+vt 0.19465820 0.09444267
+vt 0.19465820 0.09032661
+vt 0.21033357 0.09238464
+vt 0.20510851 0.09650084
+vt 0.22078386 0.08826858
+vt 0.23123416 0.09238464
+vt 0.29393587 0.08826858
+vt 0.31483647 0.09444267
+vt 0.44023994 0.08003631
+vt 0.46636564 0.07180405
+vt 0.40888909 0.07386208
+vt 0.40888909 0.06974588
+vt 0.38798848 0.06974588
+vt 0.36186278 0.07797814
+vt 0.33051193 0.07797814
+vt 0.32006162 0.08415238
+vt 0.29916102 0.08415238
+vt 0.29393587 0.08003631
+vt 0.29393587 0.08621041
+vt 0.26258507 0.08415238
+vt 0.26258507 0.08826858
+vt 0.22078386 0.08209434
+vt 0.41933933 0.08209434
+vt 0.42456448 0.08003631
+vt 0.35141248 0.09444267
+vt 0.32006162 0.10473296
+vt 0.30961132 0.10267492
+vt 0.22078386 0.09032661
+vt 0.29393587 0.10679112
+vt 0.28871071 0.10884915
+vt 0.28871071 0.10473296
+vt 0.29916102 0.10473296
+vt 0.24168447 0.09650084
+vt 0.24690962 0.10473296
+vt 0.22600901 0.10473296
+vt 0.53429252 0.08621041
+vt 0.52384228 0.09238464
+vt 0.53951764 0.09238464
+vt 0.50816679 0.09444267
+vt 0.49249139 0.09855887
+vt 0.50816679 0.09855887
+vt 0.84780115 0.09032661
+vt 0.85825145 0.09238464
+vt 0.86870176 0.08621041
+vt 0.84780115 0.08415238
+vt 0.88794589 0.08826858
+vt 0.88794601 0.08415245
+vt 0.86870176 0.08415238
+vt 0.13718155 0.08003631
+vt 0.14240670 0.07386208
+vt 0.12673135 0.07592011
+vt 0.67537141 0.07592011
+vt 0.68582165 0.07797814
+vt 0.69627196 0.07386208
+vt 0.67537141 0.07180405
+vt 0.64861643 0.08807153
+vt 0.64350891 0.08557903
+vt 0.66492110 0.08003631
+vt 0.19465820 0.07797814
+vt 0.22078386 0.08003631
+vt 0.22600901 0.07386208
+vt 0.20510851 0.07180405
+vt 0.20510851 0.07797814
+vt 0.17898275 0.07797814
+vt 0.17375761 0.08415238
+vt 0.18943305 0.08621041
+vt 0.19465820 0.08003631
+vt 0.52906734 0.08003631
+vt 0.53951764 0.07386208
+vt 0.51861709 0.07180405
+vt 0.51339197 0.07797814
+vt 0.83735085 0.07180405
+vt 0.83212578 0.07797814
+vt 0.84780115 0.08003631
+vt 0.85825145 0.07386208
+vt 0.34618732 0.06562982
+vt 0.34096223 0.06357180
+vt 0.35141248 0.06357180
+vt 0.31483647 0.06768785
+vt 0.30961132 0.07180405
+vt 0.33051193 0.06974588
+vt 0.32006162 0.06357180
+vt 0.88794672 0.06562989
+vt 0.88794655 0.06974595
+vt 0.86870176 0.06974588
+vt 0.88794655 0.07180412
+vt 0.88794637 0.07592019
+vt 0.19988327 0.06357180
+vt 0.18420790 0.06562982
+vt 0.18943305 0.05945559
+vt 0.21555872 0.05945559
+vt 0.15808216 0.06768785
+vt 0.14763185 0.07386208
+vt 0.17375761 0.07386208
+vt 0.17898275 0.06768785
+vt 0.16330731 0.06768785
+vt 0.16330731 0.06357180
+vt 0.22078386 0.04916530
+vt 0.22600901 0.05739756
+vt 0.23123416 0.05945559
+vt 0.24168447 0.05122333
+vt 0.26258507 0.05122333
+vt 0.26781023 0.04710727
+vt 0.23645931 0.03681698
+vt 0.24168447 0.03475895
+vt 0.24690962 0.04093304
+vt 0.22600901 0.04093304
+vt 0.20510851 0.03887501
+vt 0.19465820 0.04710727
+vt 0.22600901 0.04299107
+vt 0.17375761 0.04916530
+vt 0.17375761 0.04504924
+vt 0.18420790 0.05328150
+vt 0.16853246 0.05328150
+vt 0.12150611 0.05945559
+vt 0.11105590 0.06768785
+vt 0.12673135 0.06768785
+vt 0.12673135 0.06151376
+vt 0.13718155 0.06151376
+vt 0.12673135 0.06974588
+vt 0.13195641 0.07180405
+vt 0.13195641 0.06768785
+vt 0.14240670 0.05328150
+vt 0.13718155 0.05945559
+vt 0.15285701 0.06151376
+vt 0.16853246 0.05533953
+vt 0.24690962 0.07180405
+vt 0.23645931 0.07180405
+vt 0.23645931 0.06562982
+vt 0.64924574 0.06768785
+vt 0.62711072 0.07757656
+vt 0.61994201 0.07407821
+vt 0.63357025 0.06768785
+vt 0.71194744 0.06562982
+vt 0.71194744 0.07180405
+vt 0.72239774 0.07180405
+vt 0.72762287 0.06768785
+vt 0.80077487 0.06974588
+vt 0.79032457 0.07180405
+vt 0.79032457 0.06151376
+vt 0.79554975 0.06768785
+vt 0.81122518 0.06768785
+vt 0.86347657 0.05328150
+vt 0.85302627 0.05945559
+vt 0.88794672 0.06357186
+vt 0.88794708 0.05328150
+vt 0.83212578 0.06768785
+vt 0.82690054 0.05945559
+vt 0.82167548 0.06562982
+vt 0.81645036 0.06768785
+vt 0.81122518 0.06562982
+vt 0.88794822 0.02035253
+vt 0.88794810 0.02446859
+vt 0.86347657 0.02652669
+vt 0.88794792 0.02858472
+vt 0.84257597 0.02446852
+vt 0.83212578 0.03270078
+vt 0.85302627 0.03475895
+vt 0.80600005 0.03270078
+vt 0.83212578 0.03475895
+vt 0.81122518 0.04093304
+vt 0.80077487 0.03887501
+vt 0.75374860 0.04299107
+vt 0.69627196 0.04710727
+vt 0.70672226 0.04093304
+vt 0.69104683 0.04093304
+vt 0.67537141 0.04710727
+vt 0.65447086 0.04504924
+vt 0.65447086 0.05122333
+vt 0.63879544 0.05328150
+vt 0.61789483 0.04916530
+vt 0.61266965 0.05739756
+vt 0.62834513 0.05739756
+vt 0.63357025 0.06357180
+vt 0.63357025 0.05533953
+vt 0.66492110 0.05533953
+vt 0.67537141 0.05122333
+vt 0.72239774 0.04916530
+vt 0.72239774 0.05328150
+vt 0.74329835 0.05328150
+vt 0.74329835 0.04916530
+vt 0.79032457 0.04299107
+vt 0.59892887 0.06382363
+vt 0.54474282 0.05122333
+vt 0.53429252 0.05945559
+vt 0.51339197 0.06562982
+vt 0.51339197 0.06974588
+vt 0.51861709 0.06562982
+vt 0.55519313 0.06768785
+vt 0.55519313 0.06357180
+vt 0.57086855 0.06357180
+vt 0.58499378 0.05702323
+vt 0.54996794 0.06151376
+vt 0.53951764 0.05122333
+vt 0.50294167 0.06357180
+vt 0.77987427 0.05328150
+vt 0.77464914 0.05945559
+vt 0.80077487 0.05533953
+vt 0.78509945 0.05328150
+vt 0.78509945 0.04916530
+vt 0.76942396 0.06151376
+vt 0.76419884 0.05945559
+vt 0.73807317 0.06357180
+vt 0.75897366 0.06974588
+vt 0.76419884 0.06151376
+vt 0.45591533 0.05945559
+vt 0.45069024 0.05739756
+vt 0.46114048 0.05739756
+vt 0.70149714 0.05533953
+vt 0.69104683 0.05945559
+vt 0.71194744 0.06151376
+vt 0.71717256 0.05328150
+vt 0.67014629 0.05945559
+vt 0.65969598 0.06562982
+vt 0.69104683 0.06151376
+vt 0.47159079 0.02035246
+vt 0.48726624 0.02241049
+vt 0.50094146 0.01600509
+vt 0.46636564 0.02446852
+vt 0.46114048 0.02241049
+vt 0.47159079 0.02241049
+vt 0.44546509 0.02652669
+vt 0.42456448 0.03270078
+vt 0.45591533 0.03064275
+vt 0.46114048 0.02446852
+vt 0.36186278 0.04504924
+vt 0.36186278 0.03681698
+vt 0.29916102 0.05945559
+vt 0.32006162 0.05533953
+vt 0.29916102 0.05122333
+vt 0.33051193 0.04504924
+vt 0.35141248 0.04916530
+vt 0.33573708 0.04710727
+vt 0.34096223 0.03270078
+vt 0.33051193 0.03270078
+vt 0.32006162 0.03887501
+vt 0.28348562 0.03887501
+vt 0.27303532 0.04710727
+vt 0.29916102 0.04916530
+vt 0.30961132 0.04299107
+vt 0.84780115 0.04299107
+vt 0.86347657 0.04916530
+vt 0.86347657 0.04299107
+vt 0.88794756 0.03887508
+vt 0.85302627 0.03681698
+vt 0.80600005 0.05328150
+vt 0.82690054 0.05533953
+vt 0.83735085 0.04710727
+vt 0.81645036 0.04504924
+vt 0.54296750 0.03651409
+vt 0.50816679 0.04710727
+vt 0.53951764 0.04710727
+vt 0.55219740 0.04101835
+vt 0.42456448 0.04710727
+vt 0.41933933 0.04916530
+vt 0.42978963 0.04916530
+vt 0.22078386 0.02035246
+vt 0.20510851 0.02858472
+vt 0.24168447 0.02241049
+vt 0.18943305 0.03064275
+vt 0.19988327 0.03475895
+vt 0.17375761 0.03475895
+vt 0.15808216 0.03475895
+vt 0.14763185 0.04093304
+vt 0.16853246 0.04093304
+vt 0.12673135 0.04093304
+vt 0.12150611 0.04710727
+vt 0.14763185 0.04299107
+vt 0.55484164 0.04230879
+vt 0.56201035 0.04580713
+vt 0.57086855 0.03681698
+vt 0.63357025 0.03681698
+vt 0.65447086 0.04299107
+vt 0.65969598 0.03475895
+vt 0.63879544 0.03270078
+vt 0.71194744 0.02035246
+vt 0.72762287 0.02035246
+vt 0.72239774 0.02652669
+vt 0.70672226 0.02446852
+vt 0.67537141 0.03270078
+vt 0.67537141 0.02652669
+vt 0.69627196 0.02652669
+vt 0.71717256 0.03887501
+vt 0.73807317 0.03681698
+vt 0.72762287 0.03064275
+vt 0.57609373 0.01829443
+vt 0.59176910 0.01829443
+vt 0.58654398 0.01212020
+vt 0.56041825 0.01829443
+vt 0.53429252 0.02035246
+vt 0.52204525 0.02630391
+vt 0.53176767 0.03104850
+vt 0.52665991 0.02855587
+vt 0.54996794 0.02446852
+vt 0.54996794 0.02035246
+vt 0.57609373 0.02035246
+vt 0.50816679 0.03270078
+vt 0.52146184 0.02601919
+vt 0.52656919 0.02851162
+vt 0.75897366 0.02858472
+vt 0.74852341 0.03270078
+vt 0.76942396 0.03270078
+vt 0.77987427 0.02652669
+vt 0.75897366 0.02241049
+vt 0.29916102 0.02035246
+vt 0.29916102 0.02652669
+vt 0.31483647 0.02858472
+vt 0.32006162 0.02035246
+vt 0.80077487 0.02446852
+vt 0.80600005 0.02652669
+vt 0.81122518 0.02035246
+vt 0.79554975 0.01829443
+vt 0.79032457 0.02446852
+vt 0.33051193 0.01417823
+vt 0.33051193 0.01829443
+vt 0.35141248 0.01623626
+vt 0.33573708 0.01417823
+vt 0.33573708 0.01006217
+vt 0.79554975 0.00800400
+vt 0.79032457 0.01417823
+vt 0.77987427 0.00800400
+vt 0.74852341 0.01417823
+vt 0.74329835 0.01829443
+vt 0.75897366 0.02035246
+vt 0.76942396 0.01212020
+vt 0.45069024 0.00800400
+vt 0.46114048 0.01006217
+vt 0.47531316 0.00349828
+vt 0.53429252 0.00800400
+vt 0.52384228 0.01212020
+vt 0.54474282 0.01417823
+vt 0.54996794 0.00594597
+vt 0.52370942 0.02711604
+vt 0.64095539 0.08433292
+vt 0.52727932 0.02885813
+vt 0.52656919 0.02851162
+vt 0.52656919 0.02851162
+vt 0.54183996 0.05351011
+vt 0.58499378 0.05702323
+vt 0.54474282 0.05636855
+vt 0.58499378 0.05702323
+vt 0.58499378 0.05702323
+vt 0.23676643 0.08681571
+vt 0.66187757 0.09454303
+vt 0.66196841 0.09458742
+vt 0.68347389 0.10508225
+vt 0.68641561 0.10651778
+vt 0.43083462 0.07880144
+vt 0.42456430 0.08003631
+vt 0.41759759 0.08140831
+vt 0.32946697 0.09732399
+vt 0.59431404 0.06157161
+vt 0.52952951 0.02995630
+vt 0.58499378 0.05702323
+vt 0.66196841 0.09458742
+vt 0.66196841 0.09458742
+vt 0.66196841 0.09458742
+vt 0.68347400 0.10508225
+vt 0.68347389 0.10508225
+f 28/28 29/29 30/30
+f 33/33 31/31 32/32
+f 97/97 34/34 35/35
+f 39/39 37/37 38/38
+f 39/39 40/40 41/41
+f 98/98 43/43 44/44
+f 44/44 45/45 46/46
+f 50/50 48/48 49/49
+f 102/102 51/51 52/52
+f 106/106 57/57 58/58
+f 359/359 61/61 63/63
+f 61/61 62/62 63/63
+f 63/63 3/3 1/1
+f 2/2 3/3 64/64
+f 2/2 65/65 66/66
+f 528/528 67/67 68/68
+f 71/71 69/69 70/70
+f 492/492 507/507 530/530
+f 530/530 507/507 511/511
+f 520/520 531/531 510/510
+f 532/532 527/527 528/528
+f 484/484 529/529 71/71
+f 72/72 73/73 74/74
+f 74/74 488/488 489/489
+f 488/488 74/74 75/75
+f 94/94 76/76 77/77
+f 424/424 505/505 425/425
+f 505/505 540/540 498/498
+f 425/425 497/497 537/537
+f 496/496 503/503 493/493
+f 503/503 494/494 493/493
+f 488/488 482/482 481/481
+f 494/494 482/482 93/93
+f 494/494 93/93 95/95
+f 399/399 379/379 378/378
+f 375/375 377/377 376/376
+f 481/481 373/373 487/487
+f 490/490 489/489 372/372
+f 492/492 489/489 490/490
+f 485/485 489/489 492/492
+f 371/371 490/490 372/372
+f 490/490 371/371 370/370
+f 369/369 509/509 389/389
+f 527/527 518/518 5/5
+f 517/517 5/5 518/518
+f 517/517 516/516 520/520
+f 403/403 387/387 409/409
+f 416/416 385/385 384/384
+f 421/421 382/382 381/381
+f 381/381 380/380 379/379
+f 381/381 390/390 340/340
+f 383/383 421/421 420/420
+f 420/420 422/422 417/417
+f 344/344 418/418 341/341
+f 422/422 418/418 417/417
+f 338/338 265/265 337/337
+f 265/265 338/338 541/541
+f 337/337 262/262 421/421
+f 259/259 262/262 265/265
+f 265/265 264/264 263/263
+f 145/145 339/339 396/396
+f 340/340 390/390 339/339
+f 478/478 494/494 503/503
+f 503/503 502/502 501/501
+f 501/501 500/500 542/542
+f 542/542 506/506 543/543
+f 499/499 544/544 504/504
+f 504/504 458/458 457/457
+f 478/478 460/460 476/476
+f 459/459 476/476 460/460
+f 505/505 424/424 504/504
+f 458/458 392/392 401/401
+f 401/401 545/545 391/391
+f 546/546 547/547 400/400
+f 477/477 548/548 399/399
+f 549/549 548/548 546/546
+f 398/398 397/397 396/396
+f 277/277 395/395 394/394
+f 394/394 393/393 402/402
+f 512/512 84/84 466/466
+f 84/84 10/10 9/9
+f 11/11 10/10 85/85
+f 12/12 86/86 87/87
+f 26/26 12/12 87/87
+f 23/23 87/87 88/88
+f 101/101 90/90 91/91
+f 23/23 27/27 26/26
+f 18/18 25/25 20/20
+f 89/89 474/474 20/20
+f 323/323 322/322 474/474
+f 470/470 21/21 471/471
+f 470/470 18/18 22/22
+f 473/473 475/475 471/471
+f 16/16 469/469 467/467
+f 14/14 465/465 464/464
+f 315/315 465/465 468/468
+f 468/468 469/469 472/472
+f 472/472 471/471 475/475
+f 330/330 474/474 322/322
+f 322/322 326/326 331/331
+f 330/330 333/333 321/321
+f 475/475 318/318 319/319
+f 319/319 316/316 315/315
+f 315/315 317/317 314/314
+f 313/313 314/314 317/317
+f 298/298 316/316 320/320
+f 333/333 320/320 321/321
+f 305/305 298/298 306/306
+f 310/310 445/445 444/444
+f 466/466 513/513 512/512
+f 525/525 524/524 523/523
+f 515/515 522/522 521/521
+f 433/433 440/440 439/439
+f 447/447 436/436 438/438
+f 436/436 447/447 446/446
+f 309/309 445/445 310/310
+f 309/309 308/308 307/307
+f 309/309 336/336 334/334
+f 298/298 336/336 307/307
+f 269/269 298/298 295/295
+f 320/320 333/333 297/297
+f 332/332 331/331 326/326
+f 329/329 325/325 324/324
+f 324/324 327/327 329/329
+f 328/328 327/327 258/258
+f 327/327 324/324 323/323
+f 323/323 202/202 201/201
+f 201/201 200/200 189/189
+f 332/332 299/299 304/304
+f 304/304 303/303 302/302
+f 271/271 301/301 272/272
+f 271/271 274/274 266/266
+f 266/266 270/270 269/269
+f 550/550 267/267 229/229
+f 227/227 550/550 228/228
+f 227/227 226/226 225/225
+f 223/223 225/225 224/224
+f 225/225 223/223 287/287
+f 287/287 223/223 222/222
+f 439/439 285/285 433/433
+f 82/82 429/429 533/533
+f 427/427 533/533 429/429
+f 429/429 432/432 427/427
+f 427/427 428/428 423/423
+f 424/424 426/426 504/504
+f 247/247 155/155 248/248
+f 244/244 278/278 246/246
+f 248/248 148/148 244/244
+f 155/155 157/157 148/148
+f 147/147 146/146 145/145
+f 145/145 154/154 141/141
+f 551/551 135/135 552/552
+f 135/135 551/551 143/143
+f 135/135 162/162 161/161
+f 161/161 553/553 159/159
+f 132/132 130/130 131/131
+f 130/130 133/133 134/134
+f 551/551 136/136 137/137
+f 137/137 138/138 139/139
+f 343/343 140/140 411/411
+f 410/410 412/412 409/409
+f 409/409 404/404 403/403
+f 407/407 406/406 405/405
+f 366/366 367/367 364/364
+f 359/359 361/361 360/360
+f 362/362 361/361 365/365
+f 365/365 364/364 367/367
+f 389/389 368/368 369/369
+f 389/389 456/456 368/368
+f 367/367 455/455 448/448
+f 451/451 450/450 449/449
+f 449/449 448/448 455/455
+f 355/355 453/453 405/405
+f 347/347 404/404 408/408
+f 408/408 409/409 412/412
+f 344/344 411/411 410/410
+f 346/346 408/408 119/119
+f 358/358 348/348 349/349
+f 358/358 356/356 355/355
+f 455/455 351/351 350/350
+f 279/279 351/351 354/354
+f 357/357 354/354 356/356
+f 279/279 282/282 292/292
+f 292/292 291/291 290/290
+f 294/294 293/293 292/292
+f 255/255 282/282 281/281
+f 255/255 252/252 251/251
+f 253/253 255/255 251/251
+f 252/252 281/281 280/280
+f 354/354 357/357 279/279
+f 357/357 358/358 349/349
+f 121/121 345/345 346/346
+f 408/408 346/346 347/347
+f 346/346 120/120 121/121
+f 177/177 123/123 124/124
+f 185/185 125/125 126/126
+f 180/180 128/128 165/165
+f 167/167 166/166 128/128
+f 128/128 129/129 130/130
+f 160/160 554/554 163/163
+f 154/154 142/142 141/141
+f 154/154 153/153 152/152
+f 152/152 151/151 150/150
+f 157/157 149/149 148/148
+f 155/155 247/247 156/156
+f 431/431 504/504 426/426
+f 426/426 427/427 432/432
+f 220/220 433/433 285/285
+f 440/440 433/433 434/434
+f 288/288 283/283 284/284
+f 285/285 221/221 220/220
+f 217/217 219/219 218/218
+f 463/463 414/414 415/415
+f 414/414 463/463 462/462
+f 413/413 219/219 217/217
+f 555/555 556/556 231/231
+f 230/230 557/557 232/232
+f 116/116 206/206 117/117
+f 105/105 116/116 101/101
+f 115/115 101/101 116/116
+f 114/114 558/558 233/233
+f 233/233 115/115 114/114
+f 239/239 233/233 234/234
+f 239/239 214/214 238/238
+f 274/274 267/267 266/266
+f 209/209 212/212 273/273
+f 195/195 211/211 208/208
+f 113/113 112/112 242/242
+f 240/240 241/241 238/238
+f 237/237 238/238 241/241
+f 241/241 242/242 112/112
+f 211/211 195/195 110/110
+f 212/212 209/209 210/210
+f 191/191 301/301 300/300
+f 256/256 191/191 300/300
+f 190/190 189/189 200/200
+f 197/197 199/199 198/198
+f 197/197 196/196 195/195
+f 108/108 193/193 192/192
+f 90/90 192/192 204/204
+f 204/204 203/203 202/202
+f 89/89 20/20 25/25
+f 188/188 187/187 177/177
+f 177/177 176/176 175/175
+f 169/169 183/183 182/182
+f 182/182 181/181 169/169
+f 169/169 174/174 173/173
+f 172/172 171/171 170/170
+f 170/170 169/169 181/181
+f 187/187 179/179 178/178
+f 178/178 177/177 187/187
+f 127/127 186/186 185/185
+f 44/44 99/99 98/98
+f 101/101 56/56 105/105
+f 55/55 101/101 103/103
+f 36/36 98/98 97/97
+f 31/31 33/33 30/30
+f 97/97 35/35 36/36
+f 37/37 39/39 36/36
+f 43/43 98/98 42/42
+f 44/44 46/46 47/47
+f 48/48 50/50 47/47
+f 102/102 52/52 53/53
+f 104/104 58/58 59/59
+f 362/362 61/61 359/359
+f 65/65 2/2 64/64
+f 71/71 529/529 69/69
+f 530/530 511/511 531/531
+f 520/520 527/527 531/531
+f 529/529 484/484 530/530
+f 489/489 72/72 74/74
+f 482/482 488/488 75/75
+f 497/497 425/425 505/505
+f 497/497 505/505 498/498
+f 537/537 497/497 538/538
+f 496/496 493/493 495/495
+f 495/495 494/494 95/95
+f 488/488 481/481 487/487
+f 482/482 494/494 479/479
+f 377/377 375/375 378/378
+f 372/372 489/489 373/373
+f 489/489 485/485 486/486
+f 490/490 370/370 491/491
+f 527/527 520/520 519/519
+f 526/526 5/5 4/4
+f 363/363 5/5 517/517
+f 366/366 520/520 510/510
+f 390/390 381/381 379/379
+f 382/382 421/421 383/383
+f 384/384 417/417 416/416
+f 410/410 418/418 344/344
+f 418/418 422/422 341/341
+f 262/262 337/337 265/265
+f 260/260 259/259 265/265
+f 398/398 390/390 559/559
+f 494/494 478/478 479/479
+f 560/560 501/501 542/542
+f 542/542 543/543 560/560
+f 499/499 504/504 457/457
+f 460/460 478/478 457/457
+f 476/476 459/459 477/477
+f 392/392 458/458 402/402
+f 477/477 547/547 546/546
+f 548/548 549/549 561/561
+f 464/464 9/9 15/15
+f 86/86 11/11 85/85
+f 86/86 12/12 15/15
+f 20/20 474/474 21/21
+f 21/21 470/470 22/22
+f 465/465 14/14 467/467
+f 474/474 330/330 475/475
+f 322/322 331/331 330/330
+f 475/475 321/321 318/318
+f 315/315 314/314 311/311
+f 316/316 305/305 317/317
+f 298/298 320/320 297/297
+f 313/313 310/310 444/444
+f 514/514 513/513 444/444
+f 515/515 442/442 522/522
+f 436/436 446/446 437/437
+f 437/437 445/445 309/309
+f 336/336 309/309 307/307
+f 298/298 269/269 336/336
+f 304/304 297/297 333/333
+f 325/325 329/329 326/326
+f 328/328 258/258 257/257
+f 258/258 327/327 323/323
+f 256/256 201/201 189/189
+f 266/266 301/301 271/271
+f 302/302 266/266 269/269
+f 335/335 267/267 550/550
+f 435/435 225/225 287/287
+f 287/287 222/222 288/288
+f 429/429 82/82 430/430
+f 533/533 427/427 534/534
+f 148/148 248/248 155/155
+f 243/243 278/278 244/244
+f 147/147 244/244 148/148
+f 263/263 141/141 144/144
+f 562/562 563/563 564/564
+f 162/162 135/135 143/143
+f 564/564 161/161 159/159
+f 133/133 130/130 132/132
+f 388/388 403/403 407/407
+f 453/453 407/407 405/405
+f 517/517 364/364 363/363
+f 1/1 359/359 63/63
+f 456/456 367/367 368/368
+f 389/389 453/453 456/456
+f 367/367 448/448 452/452
+f 351/351 455/455 454/454
+f 404/404 347/347 405/405
+f 408/408 412/412 411/411
+f 411/411 140/140 118/118
+f 348/348 358/358 347/347
+f 292/292 351/351 279/279
+f 352/352 292/292 290/290
+f 282/282 294/294 292/292
+f 252/252 255/255 281/281
+f 253/253 251/251 250/250
+f 122/122 252/252 280/280
+f 279/279 357/357 280/280
+f 121/121 349/349 345/345
+f 120/120 346/346 119/119
+f 125/125 188/188 124/124
+f 167/167 128/128 130/130
+f 160/160 163/163 162/162
+f 142/142 154/154 143/143
+f 149/149 157/157 150/150
+f 504/504 431/431 458/458
+f 426/426 432/432 431/431
+f 462/462 430/430 433/433
+f 288/288 221/221 283/283
+f 220/220 219/219 462/462
+f 431/431 463/463 415/415
+f 219/219 414/414 462/462
+f 216/216 555/555 231/231
+f 117/117 558/558 114/114
+f 240/240 214/214 213/213
+f 267/267 274/274 229/229
+f 212/212 210/210 235/235
+f 113/113 211/211 110/110
+f 113/113 213/213 211/211
+f 215/215 239/239 234/234
+f 237/237 241/241 112/112
+f 272/272 209/209 273/273
+f 301/301 191/191 272/272
+f 199/199 197/197 200/200
+f 90/90 204/204 202/202
+f 474/474 89/89 323/323
+f 122/122 177/177 175/175
+f 183/183 169/169 184/184
+f 170/170 181/181 180/180
+f 179/179 187/187 180/180
+f 127/127 180/180 186/186
+f 165/165 104/104 180/180
+f 30/30 33/33 28/28
+f 42/42 98/98 41/41
+f 92/92 44/44 47/47
+f 451/451 61/61 362/362
+f 4/4 2/2 66/66
+f 69/69 529/529 532/532
+f 510/510 531/531 511/511
+f 486/486 72/72 489/489
+f 76/76 94/94 75/75
+f 425/425 537/537 79/79
+f 538/538 497/497 496/496
+f 77/77 95/95 94/94
+f 478/478 378/378 479/479
+f 72/72 486/486 483/483
+f 484/484 485/485 492/492
+f 508/508 491/491 370/370
+f 337/337 381/381 340/340
+f 385/385 416/416 419/419
+f 261/261 341/341 422/422
+f 421/421 262/262 422/422
+f 144/144 265/265 263/263
+f 499/499 501/501 560/560
+f 501/501 499/499 457/457
+f 458/458 401/401 459/459
+f 477/477 546/546 548/548
+f 15/15 11/11 86/86
+f 202/202 89/89 90/90
+f 473/473 21/21 474/474
+f 18/18 470/470 17/17
+f 321/321 475/475 330/330
+f 465/465 312/312 466/466
+f 316/316 298/298 305/305
+f 514/514 444/444 443/443
+f 441/441 522/522 442/442
+f 445/445 437/437 446/446
+f 269/269 295/295 296/296
+f 304/304 333/333 332/332
+f 326/326 329/329 332/332
+f 329/329 328/328 257/257
+f 201/201 258/258 323/323
+f 266/266 302/302 301/301
+f 334/334 550/550 227/227
+f 435/435 287/287 286/286
+f 221/221 288/288 222/222
+f 423/423 534/534 427/427
+f 248/248 244/244 246/246
+f 278/278 243/243 275/275
+f 244/244 147/147 245/245
+f 563/563 562/562 552/552
+f 135/135 161/161 563/563
+f 130/130 134/134 159/159
+f 387/387 403/403 388/388
+f 520/520 366/366 517/517
+f 455/455 367/367 456/456
+f 408/408 411/411 118/118
+f 405/405 358/358 355/355
+f 292/292 352/352 351/351
+f 282/282 255/255 294/294
+f 121/121 280/280 357/357
+f 349/349 121/121 357/357
+f 158/158 167/167 130/130
+f 143/143 154/154 152/152
+f 150/150 157/157 156/156
+f 415/415 458/458 431/431
+f 283/283 221/221 285/285
+f 433/433 220/220 462/462
+f 414/414 219/219 413/413
+f 216/216 231/231 230/230
+f 558/558 117/117 232/232
+f 273/273 229/229 274/274
+f 213/213 113/113 242/242
+f 190/190 209/209 272/272
+f 272/272 191/191 190/190
+f 190/190 200/200 197/197
+f 323/323 89/89 202/202
+f 184/184 169/169 173/173
+f 186/186 180/180 187/187
+f 44/44 92/92 99/99
+f 91/91 50/50 101/101
+f 34/34 97/97 33/33
+f 100/100 47/47 50/50
+f 67/67 526/526 66/66
+f 68/68 69/69 532/532
+f 531/531 527/527 532/532
+f 79/79 537/537 536/536
+f 539/539 538/538 496/496
+f 375/375 479/479 378/378
+f 508/508 492/492 491/491
+f 421/421 381/381 337/337
+f 261/261 422/422 262/262
+f 478/478 501/501 457/457
+f 391/391 459/459 401/401
+f 11/11 15/15 8/8
+f 89/89 25/25 24/24
+f 471/471 21/21 473/473
+f 469/469 17/17 470/470
+f 475/475 319/319 472/472
+f 317/317 305/305 313/313
+f 442/442 514/514 443/443
+f 522/522 441/441 523/523
+f 435/435 437/437 309/309
+f 299/299 329/329 257/257
+f 201/201 256/256 258/258
+f 296/296 302/302 269/269
+f 334/334 227/227 225/225
+f 289/289 288/288 284/284
+f 80/80 423/423 425/425
+f 217/217 246/246 278/278
+f 275/275 243/243 276/276
+f 245/245 147/147 145/145
+f 159/159 134/134 564/564
+f 367/367 452/452 365/365
+f 119/119 408/408 118/118
+f 351/351 454/454 355/355
+f 253/253 61/61 254/254
+f 294/294 255/255 254/254
+f 122/122 280/280 121/121
+f 160/160 167/167 158/158
+f 162/162 143/143 152/152
+f 458/458 415/415 402/402
+f 430/430 462/462 461/461
+f 415/415 413/413 217/217
+f 205/205 232/232 206/206
+f 108/108 101/101 115/115
+f 229/229 273/273 212/212
+f 213/213 242/242 240/240
+f 209/209 195/195 208/208
+f 209/209 190/190 197/197
+f 250/250 173/173 172/172
+f 150/150 105/105 165/165
+f 51/51 102/102 50/50
+f 68/68 532/532 528/528
+f 79/79 536/536 539/539
+f 539/539 496/496 495/495
+f 479/479 375/375 480/480
+f 384/384 383/383 420/420
+f 341/341 261/261 342/342
+f 501/501 478/478 503/503
+f 459/459 391/391 477/477
+f 8/8 15/15 9/9
+f 88/88 89/89 24/24
+f 20/20 22/22 18/18
+f 469/469 16/16 17/17
+f 472/472 319/319 468/468
+f 310/310 313/313 305/305
+f 442/442 515/515 514/514
+f 440/440 434/434 441/441
+f 435/435 309/309 334/334
+f 300/300 257/257 256/256
+f 191/191 256/256 189/189
+f 336/336 268/268 335/335
+f 423/423 80/80 534/534
+f 394/394 278/278 277/277
+f 145/145 243/243 245/245
+f 541/541 141/141 263/263
+f 161/161 564/564 563/563
+f 451/451 365/365 452/452
+f 358/358 405/405 347/347
+f 170/170 60/60 172/172
+f 184/184 252/252 122/122
+f 167/167 160/160 168/168
+f 162/162 152/152 150/150
+f 430/430 461/461 431/431
+f 117/117 206/206 232/232
+f 236/236 233/233 239/239
+f 213/213 235/235 210/210
+f 209/209 197/197 195/195
+f 104/104 165/165 105/105
+f 67/67 528/528 526/526
+f 78/78 79/79 539/539
+f 95/95 77/77 495/495
+f 374/374 480/480 375/375
+f 417/417 384/384 420/420
+f 137/137 261/261 260/260
+f 477/477 378/378 478/478
+f 547/547 477/477 391/391
+f 9/9 464/464 84/84
+f 88/88 24/24 23/23
+f 25/25 18/18 19/19
+f 315/315 468/468 319/319
+f 312/312 313/313 444/444
+f 512/512 515/515 521/521
+f 225/225 435/435 334/334
+f 299/299 257/257 300/300
+f 243/243 145/145 276/276
+f 552/552 562/562 551/551
+f 365/365 451/451 362/362
+f 453/453 355/355 454/454
+f 252/252 184/184 249/249
+f 168/168 160/160 162/162
+f 116/116 105/105 206/206
+f 463/463 431/431 461/461
+f 232/232 205/205 230/230
+f 233/233 236/236 115/115
+f 211/211 213/213 210/210
+f 194/194 110/110 195/195
+f 59/59 180/180 104/104
+f 4/4 66/66 526/526
+f 77/77 78/78 539/539
+f 385/385 419/419 386/386
+f 261/261 139/139 342/342
+f 378/378 477/477 399/399
+f 26/26 87/87 23/23
+f 25/25 19/19 26/26
+f 465/465 315/315 311/311
+f 466/466 444/444 513/513
+f 512/512 521/521 525/525
+f 289/289 435/435 286/286
+f 329/329 299/299 332/332
+f 136/136 551/551 562/562
+f 455/455 350/350 449/449
+f 165/165 168/168 162/162
+f 217/217 402/402 415/415
+f 230/230 205/205 216/216
+f 237/237 115/115 236/236
+f 238/238 214/214 240/240
+f 110/110 194/194 111/111
+f 180/180 59/59 170/170
+f 495/495 77/77 539/539
+f 418/418 386/386 419/419
+f 137/137 265/265 144/144
+f 379/379 399/399 559/559
+f 12/12 26/26 13/13
+f 26/26 19/19 16/16
+f 312/312 465/465 311/311
+f 83/83 512/512 525/525
+f 297/297 304/304 296/296
+f 551/551 137/137 144/144
+f 353/353 449/449 350/350
+f 150/150 165/165 162/162
+f 246/246 217/217 247/247
+f 207/207 216/216 205/205
+f 214/214 239/239 215/215
+f 90/90 108/108 192/192
+f 58/58 104/104 106/106
+f 93/93 75/75 94/94
+f 418/418 410/410 386/386
+f 559/559 399/399 561/561
+f 13/13 26/26 16/16
+f 444/444 466/466 312/312
+f 302/302 296/296 304/304
+f 342/342 139/139 343/343
+f 449/449 353/353 451/451
+f 216/216 247/247 217/217
+f 109/109 237/237 112/112
+f 107/107 193/193 108/108
+f 482/482 75/75 93/93
+f 386/386 410/410 387/387
+f 549/549 559/559 561/561
+f 467/467 13/13 16/16
+f 84/84 512/512 83/83
+f 268/268 336/336 269/269
+f 254/254 61/61 294/294
+f 216/216 207/207 247/247
+f 109/109 112/112 111/111
+f 193/193 107/107 194/194
+f 374/374 481/481 480/480
+f 398/398 559/559 549/549
+f 13/13 467/467 14/14
+f 267/267 335/335 268/268
+f 294/294 61/61 290/290
+f 247/247 207/207 156/156
+f 237/237 109/109 115/115
+f 111/111 194/194 107/107
+f 373/373 481/481 374/374
+f 390/390 398/398 339/339
+f 15/15 14/14 464/464
+f 550/550 334/334 335/335
+f 105/105 207/207 206/206
+f 108/108 115/115 109/109
+f 111/111 107/107 109/109
+f 33/33 96/96 28/28
+f 487/487 373/373 489/489
+f 396/396 339/339 398/398
+f 466/466 84/84 464/464
+f 435/435 289/289 436/436
+f 207/207 105/105 156/156
+f 90/90 101/101 108/108
+f 50/50 91/91 100/100
+f 96/96 33/33 97/97
+f 72/72 483/483 71/71
+f 141/141 339/339 145/145
+f 83/83 525/525 82/82
+f 284/284 436/436 289/289
+f 100/100 92/92 47/47
+f 39/39 98/98 36/36
+f 71/71 483/483 484/484
+f 395/395 276/276 396/396
+f 82/82 525/525 523/523
+f 436/436 284/284 439/439
+f 41/41 98/98 39/39
+f 492/492 530/530 484/484
+f 145/145 396/396 276/276
+f 430/430 523/523 434/434
+f 285/285 439/439 284/284
+f 101/101 50/50 102/102
+f 507/507 492/492 508/508
+f 441/441 434/434 523/523
+f 156/156 105/105 150/150
+f 54/54 102/102 53/53
+f 509/509 508/508 370/370
+f 523/523 430/430 82/82
+f 180/180 127/127 128/128
+f 102/102 54/54 103/103
+f 389/389 509/509 370/370
+f 82/82 533/533 81/81
+f 126/126 127/127 185/185
+f 103/103 54/54 55/55
+f 366/366 510/510 509/509
+f 81/81 533/533 535/535
+f 125/125 185/185 188/188
+f 101/101 55/55 56/56
+f 518/518 527/527 519/519
+f 80/80 81/81 535/535
+f 177/177 124/124 188/188
+f 105/105 56/56 106/106
+f 527/527 5/5 526/526
+f 534/534 80/80 535/535
+f 123/123 177/177 122/122
+f 57/57 106/106 56/56
+f 2/2 4/4 7/7
+f 79/79 80/80 425/425
+f 122/122 175/175 184/184
+f 2/2 7/7 1/1
+f 428/428 424/424 423/423
+f 173/173 249/249 184/184
+f 6/6 1/1 7/7
+f 426/426 424/424 428/428
+f 249/249 173/173 250/250
+f 361/361 6/6 363/363
+f 217/217 394/394 402/402
+f 253/253 250/250 172/172
+f 217/217 278/278 394/394
+f 60/60 170/170 59/59
+f 395/395 277/277 276/276
+f 61/61 172/172 60/60
+f 338/338 141/141 541/541
+f 172/172 61/61 253/253
+f 339/339 141/141 338/338
+f 290/290 61/61 352/352
+f 265/265 137/137 260/260
+f 352/352 61/61 353/353
+f 261/261 137/137 139/139
+f 353/353 61/61 451/451
+f 140/140 343/343 139/139
+f 359/359 1/1 361/361
+f 343/343 411/411 344/344
+f 6/6 361/361 1/1
+f 409/409 387/387 410/410
+f 5/5 363/363 6/6
+f 388/388 407/407 389/389
+f 364/364 517/517 366/366
+f 453/453 389/389 407/407
+f 509/509 369/369 366/366
+f 565/565 566/566 164/164
+
diff --git a/ai_002_003/background_mesh/39.obj b/ai_002_003/background_mesh/39.obj
new file mode 100644
index 0000000000000000000000000000000000000000..82b50769b9587b6db91db32e9cbcce91e1a86573
--- /dev/null
+++ b/ai_002_003/background_mesh/39.obj
@@ -0,0 +1,14 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -0.47799975 -6.05639744 -5.23230886
+v -0.47800034 -6.05639839 -5.04728079
+v -0.70200032 -6.05639935 -5.04728270
+v -0.70199966 -6.05639839 -5.23231173
+vt 0.00001546 1.00000000
+vt 1.00000000 0.99999732
+vt 0.99998969 0.00000000
+vt 0.00000000 0.00000293
+f 1/1 2/2 3/3
+f 3/3 4/4 1/1
+
diff --git a/ai_002_003/background_mesh/4.obj b/ai_002_003/background_mesh/4.obj
new file mode 100644
index 0000000000000000000000000000000000000000..d36212fe49b19456b6cd1dfa45bb9a9b2f9acbb8
--- /dev/null
+++ b/ai_002_003/background_mesh/4.obj
@@ -0,0 +1,17 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -0.96169621 5.24785805 -2.77200985
+v -0.96169728 5.25536633 -3.01214290
+v -0.96126372 1.95113063 -3.01214290
+v -0.96126133 1.93357015 -2.78269792
+v -0.96127224 2.01679015 -2.75499988
+vt 0.06614985 0.99773967
+vt 1.00000000 1.00000000
+vt 1.00000000 0.00528644
+vt 0.10771453 0.00000000
+vt 0.00000000 0.02505271
+f 5/5 2/2 3/3
+f 3/3 4/4 5/5
+f 2/2 5/5 1/1
+
diff --git a/ai_002_003/background_mesh/40.obj b/ai_002_003/background_mesh/40.obj
new file mode 100644
index 0000000000000000000000000000000000000000..a7f8b1a9adda3a02cd02e7c6f6d8bd08b83e726c
--- /dev/null
+++ b/ai_002_003/background_mesh/40.obj
@@ -0,0 +1,14 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -0.82357031 -2.32531428 -5.23225355
+v 0.03357351 -2.32536030 -5.23224115
+v 0.03357154 -2.56214285 -5.23224640
+v -0.82357150 -2.56214285 -5.23225880
+vt 0.00000139 1.00000000
+vt 1.00000000 0.99980569
+vt 0.99999774 0.00000000
+vt 0.00000000 0.00000000
+f 4/4 2/2 3/3
+f 2/2 4/4 1/1
+
diff --git a/ai_002_003/background_mesh/41.obj b/ai_002_003/background_mesh/41.obj
new file mode 100644
index 0000000000000000000000000000000000000000..e82b0347a935db0c5222eee86a555f43aaa091d9
--- /dev/null
+++ b/ai_002_003/background_mesh/41.obj
@@ -0,0 +1,14 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 0.04208335 -2.85583353 0.17234248
+v -0.82208335 -2.85583353 0.17232881
+v -0.82208335 -3.05416679 0.17232008
+v 0.04208335 -3.05416679 0.17233375
+vt 0.00000000 1.00000000
+vt 1.00000000 1.00000000
+vt 1.00000000 0.00000000
+vt 0.00000000 0.00000000
+f 1/1 2/2 3/3
+f 3/3 4/4 1/1
+
diff --git a/ai_002_003/background_mesh/42.obj b/ai_002_003/background_mesh/42.obj
new file mode 100644
index 0000000000000000000000000000000000000000..e84db73e7bd0c39283229eb81899bd7d0f1014a5
--- /dev/null
+++ b/ai_002_003/background_mesh/42.obj
@@ -0,0 +1,14 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 0.03211868 -3.06533909 0.00196534
+v -0.82211870 -3.06533909 0.00195184
+v -0.82211870 -3.26466107 0.00194306
+v 0.03211868 -3.26466107 0.00195657
+vt 0.00000000 1.00000000
+vt 1.00000000 1.00000000
+vt 1.00000000 0.00000000
+vt 0.00000000 0.00000000
+f 1/1 2/2 3/3
+f 3/3 4/4 1/1
+
diff --git a/ai_002_003/background_mesh/5.obj b/ai_002_003/background_mesh/5.obj
new file mode 100644
index 0000000000000000000000000000000000000000..e41f7fe03300e4f0177f1498718ca3765a885e89
--- /dev/null
+++ b/ai_002_003/background_mesh/5.obj
@@ -0,0 +1,223 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -4.43812609 6.70206928 -0.30131057
+v -4.43812799 6.70206928 -5.23216295
+v -4.43812656 6.69186449 -5.38482761
+v -4.43812275 6.65965414 -5.41155481
+v -4.43794250 5.28827524 -5.41153622
+v -4.43793869 5.25520563 -5.38482761
+v -4.43793344 5.21758556 -5.41153526
+v -4.43792963 5.18870401 -5.38482714
+v -4.43792582 5.16103411 -5.41153479
+v -4.43755484 2.33344793 -5.41149664
+v -4.43755007 2.29712963 -5.38482761
+v -4.43754578 2.26275849 -5.41149569
+v -4.43751764 2.05068946 -5.41149282
+v -4.43751335 2.01662898 -5.38482761
+v -4.43750858 1.97999966 -5.41149187
+v -4.43750477 1.95096958 -5.38482761
+v -4.43750095 1.92344785 -5.41149139
+v -4.43748283 1.78206861 -5.41148949
+v -4.43747902 1.75536776 -5.38482761
+v -4.43747520 1.72551692 -5.41148853
+v -4.43741035 1.23068941 -5.41148186
+v -4.43740606 1.19644320 -5.38482761
+v -4.43740082 1.15999973 -5.41148138
+v -4.43737125 0.93379271 -5.41147804
+v -4.43736649 0.89658898 -5.38482761
+v -4.43736219 0.86310303 -5.41147709
+v -4.43735409 0.80056655 -5.38482714
+v -4.43734884 0.76413763 -5.41147566
+v -4.43729544 0.35413754 -5.41147041
+v -4.43729019 0.31565747 -5.38482761
+v -4.43728590 0.28344786 -5.41146946
+v -4.43721199 -0.28206933 -5.41146183
+v -4.43720770 -0.31195757 -5.38482761
+v -4.43720436 -0.33862126 -5.41146135
+v -4.43707275 -1.34241402 -5.41144753
+v -4.43706751 -1.37815356 -5.38482761
+v -4.43706322 -1.41310370 -5.41144657
+v -4.43703175 -1.65344870 -5.41144371
+v -4.43702745 -1.68584871 -5.38482761
+v -4.43702269 -1.72413838 -5.41144276
+v -4.43697453 -2.09172440 -5.41143751
+v -4.43696499 -2.16061378 -5.36508179
+v -4.43696117 -2.19069004 -5.41143656
+v -4.43683529 -3.15207005 -5.41142368
+v -4.43683481 -3.15207052 -4.67400455
+v -4.43683863 -3.12445068 -4.58716011
+v -4.43683100 -3.17972803 -4.54254484
+v -4.43683481 -3.15206909 -4.49413776
+v -4.43683338 -3.15206957 -0.30117890
+v -4.43720436 -0.32448256 -0.30121669
+v -4.43720579 -0.31195110 -0.33758640
+v -4.43720579 -0.31195104 -0.29517221
+v -4.43774748 3.80379295 -4.46586227
+v -4.43777514 4.01586199 -4.48000002
+v -4.43777561 4.01586246 -5.04759216
+v -4.43754959 2.29103446 -5.04754448
+v -4.43754959 2.29713082 -4.46586227
+v -4.43761969 2.82827568 -4.46586227
+v -4.43761969 2.82827568 -4.49413776
+v -4.43762875 2.89896536 -4.49413776
+v -4.43763065 2.91310358 -4.46586227
+v -4.43763256 2.92724133 -4.49413776
+v -4.43765497 3.09689665 -4.46586227
+v -4.43729734 0.38241363 -0.39413786
+v -4.43731022 0.48137927 -0.39413786
+v -4.43731117 0.48137927 -2.27448273
+v -4.43730354 0.42482758 -2.33103466
+v -4.43728924 0.31566140 -2.33103466
+v -4.43721724 -0.22551739 -0.39413786
+v -4.43721819 -0.22551739 -2.40172410
+v -4.43712282 -0.94655144 -0.45068979
+v -4.43706608 -1.37815094 -0.76172400
+v -4.43706608 -1.37815094 -0.73344851
+vt 0.00119974 1.00000000
+vt 0.96493775 1.00000000
+vt 0.99477613 0.99896735
+vt 1.00000000 0.99570781
+vt 0.99999636 0.85692948
+vt 0.99477613 0.85358298
+vt 0.99999619 0.84977591
+vt 0.99477607 0.84685326
+vt 0.99999607 0.84405321
+vt 0.99998862 0.55791229
+vt 0.99477613 0.55423701
+vt 0.99998844 0.55075884
+vt 0.99998790 0.52929819
+vt 0.99477613 0.52585143
+vt 0.99998772 0.52214468
+vt 0.99477613 0.51920694
+vt 0.99998760 0.51642185
+vt 0.99998724 0.50211483
+vt 0.99477613 0.49941280
+vt 0.99998707 0.49639198
+vt 0.99998575 0.44631737
+vt 0.99477613 0.44285175
+vt 0.99998564 0.43916383
+vt 0.99998498 0.41627252
+vt 0.99477613 0.41250765
+vt 0.99998480 0.40911901
+vt 0.99477607 0.40279055
+vt 0.99998450 0.39910409
+vt 0.99998349 0.35761365
+vt 0.99477613 0.35371962
+vt 0.99998331 0.35046011
+vt 0.99998182 0.29323196
+vt 0.99477613 0.29020739
+vt 0.99998176 0.28750911
+vt 0.99997902 0.18592913
+vt 0.99477613 0.18231244
+vt 0.99997884 0.17877561
+vt 0.99997830 0.15445361
+vt 0.99477613 0.15117487
+vt 0.99997813 0.14730008
+vt 0.99997705 0.11010180
+vt 0.99091685 0.10313046
+vt 0.99997687 0.10008686
+vt 0.99997437 0.00279888
+vt 0.85584539 0.00279883
+vt 0.83887160 0.00559386
+vt 0.83015150 0.00000000
+vt 0.82069027 0.00279898
+vt 0.00117402 0.00279893
+vt 0.00118138 0.28893989
+vt 0.00828988 0.29020804
+vt 0.00000000 0.29020804
+vt 0.81516385 0.70670557
+vt 0.81792706 0.72816616
+vt 0.92886329 0.72816622
+vt 0.92885399 0.55362022
+vt 0.81516385 0.55423719
+vt 0.81516385 0.60798699
+vt 0.82069027 0.60798699
+vt 0.82069027 0.61514050
+vt 0.81516385 0.61657125
+vt 0.82069027 0.61800194
+vt 0.81516385 0.63517040
+vt 0.01934289 0.36047509
+vt 0.01934289 0.37049004
+vt 0.38685742 0.37049004
+vt 0.39791051 0.36476722
+vt 0.39791051 0.35372004
+vt 0.01934289 0.29895478
+vt 0.41172680 0.29895478
+vt 0.03039600 0.22598891
+vt 0.09118782 0.18231270
+vt 0.08566136 0.18231270
+f 4/4 2/2 3/3
+f 2/2 4/4 5/5
+f 6/6 7/7 8/8
+f 55/55 9/9 10/10
+f 14/14 12/12 13/13
+f 14/14 15/15 16/16
+f 19/19 17/17 18/18
+f 19/19 20/20 21/21
+f 22/22 23/23 24/24
+f 25/25 26/26 27/27
+f 27/27 28/28 29/29
+f 33/33 31/31 32/32
+f 33/33 34/34 35/35
+f 39/39 37/37 38/38
+f 39/39 40/40 41/41
+f 42/42 43/43 44/44
+f 42/42 45/45 46/46
+f 46/46 47/47 48/48
+f 19/19 56/56 16/16
+f 63/63 62/62 61/61
+f 58/58 60/60 59/59
+f 52/52 69/69 51/51
+f 65/65 52/52 1/1
+f 6/6 2/2 5/5
+f 56/56 10/10 11/11
+f 12/12 14/14 11/11
+f 17/17 19/19 16/16
+f 19/19 21/21 22/22
+f 22/22 24/24 25/25
+f 27/27 29/29 30/30
+f 31/31 33/33 30/30
+f 33/33 35/35 36/36
+f 37/37 39/39 36/36
+f 39/39 41/41 42/42
+f 45/45 42/42 44/44
+f 72/72 48/48 49/49
+f 60/60 58/58 61/61
+f 69/69 52/52 64/64
+f 54/54 2/2 6/6
+f 56/56 11/11 14/14
+f 67/67 25/25 27/27
+f 70/70 30/30 33/33
+f 48/48 39/39 42/42
+f 48/48 42/42 46/46
+f 50/50 71/71 49/49
+f 64/64 52/52 65/65
+f 54/54 8/8 55/55
+f 56/56 14/14 16/16
+f 25/25 57/57 22/22
+f 70/70 39/39 48/48
+f 70/70 48/48 72/72
+f 49/49 71/71 73/73
+f 30/30 67/67 27/27
+f 53/53 65/65 1/1
+f 22/22 57/57 19/19
+f 49/49 73/73 72/72
+f 25/25 67/67 57/57
+f 53/53 1/1 54/54
+f 56/56 19/19 57/57
+f 66/66 57/57 67/67
+f 57/57 66/66 58/58
+f 58/58 66/66 61/61
+f 39/39 70/70 36/36
+f 61/61 66/66 63/63
+f 36/36 70/70 33/33
+f 63/63 66/66 53/53
+f 65/65 53/53 66/66
+f 68/68 30/30 70/70
+f 2/2 54/54 1/1
+f 67/67 30/30 68/68
+f 8/8 54/54 6/6
+f 10/10 56/56 55/55
+f 9/9 55/55 8/8
+
diff --git a/ai_002_003/background_mesh/6.obj b/ai_002_003/background_mesh/6.obj
new file mode 100644
index 0000000000000000000000000000000000000000..d331256c11710a100a548965a12643a4ee5263f7
--- /dev/null
+++ b/ai_002_003/background_mesh/6.obj
@@ -0,0 +1,14 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -2.63790822 -1.38007629 -2.70557904
+v -2.63790798 -1.38007510 -0.75704360
+v -4.45038748 -1.37813652 -0.75702941
+v -4.45208788 -1.37813580 -2.70554829
+vt 0.00000000 0.99999988
+vt 0.99999273 1.00000000
+vt 1.00000000 0.00093728
+vt 0.00001578 0.00000000
+f 1/1 2/2 3/3
+f 3/3 4/4 1/1
+
diff --git a/ai_002_003/background_mesh/7.obj b/ai_002_003/background_mesh/7.obj
new file mode 100644
index 0000000000000000000000000000000000000000..cc3333e91fab32f0621171f6d4703b2f25502ce2
--- /dev/null
+++ b/ai_002_003/background_mesh/7.obj
@@ -0,0 +1,499 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -2.99187469 5.25527430 -2.97343731
+v -2.97749972 5.25527477 -2.95906234
+v -3.00624967 5.25527382 -2.95906234
+v -1.97779012 5.25532055 -2.88718748
+v -1.97779012 5.25532055 -2.85843754
+v -2.02875066 5.25531816 -2.85843754
+v -1.87062585 5.25532532 -2.88718748
+v -1.84187579 5.25532675 -2.90156245
+v -1.85625088 5.25532579 -2.85843754
+v -1.88500082 5.25532436 -2.95906234
+v -1.87062585 5.25532532 -2.94468737
+v -1.89937580 5.25532389 -2.94468737
+v -1.91375077 5.25532341 -2.93031240
+v -1.81312585 5.25532770 -2.94468737
+v -1.87062585 5.25532532 -2.91593742
+v -1.97779024 5.25532055 -2.91593742
+v -2.84812522 5.25528097 -2.77197766
+v -2.09416103 5.25531578 -2.75781250
+v -2.02875066 5.25531816 -2.78272390
+v -2.09416103 5.25531530 -2.81531262
+v -2.14375019 5.25531292 -2.78272200
+v -2.18683839 5.25531054 -2.82968783
+v -2.09416103 5.25531530 -2.84406257
+v -2.00000024 5.25531960 -2.78272438
+v -1.97779012 5.25532055 -2.81531262
+v -1.94250023 5.25532198 -2.78272533
+v -1.81312501 5.25532770 -2.78272772
+v -1.82750082 5.25532722 -2.87281251
+v -1.77000093 5.25532961 -2.88718748
+v -1.77000093 5.25532961 -2.91593742
+v -1.84187579 5.25532675 -2.91593742
+v -1.87062585 5.25532532 -2.85843754
+v -1.87062585 5.25532532 -2.90156245
+v -1.97779024 5.25532055 -2.93031240
+v -1.97779024 5.25532055 -2.95906234
+v -2.02875066 5.25531816 -2.97343731
+v -2.09416103 5.25531530 -2.97343731
+v -2.04312563 5.25531721 -2.94468737
+v -2.18683720 5.25531054 -2.97343731
+v -2.52208900 5.25529575 -2.93031240
+v -2.52208900 5.25529575 -2.97343731
+v -2.57500029 5.25529337 -2.95906234
+v -2.61812520 5.25529146 -2.98781228
+v -2.69000006 5.25528812 -2.97343731
+v -2.69000006 5.25528812 -3.00218749
+v -2.71875000 5.25528669 -2.95906234
+v -2.73312497 5.25528622 -3.00218749
+v -2.74749994 5.25528526 -2.97343731
+v -2.80499983 5.25528288 -2.98781228
+v -2.84812498 5.25528097 -2.95906234
+v -2.84812498 5.25528097 -3.00218749
+v -2.87687492 5.25527954 -2.97343731
+v -2.99187469 5.25527430 -3.00218749
+v -3.00624967 5.25527382 -2.97343731
+v -3.02062464 5.25527287 -3.00218749
+v -3.09249973 5.25526953 -2.97343731
+v -3.25062466 5.25526237 -3.00218749
+v -4.43237972 5.25520849 -3.00221300
+v -4.43441772 5.25520897 -2.75785446
+v -2.04312563 5.25531721 -2.84406257
+v -2.02874994 5.25531816 -2.78272390
+v -2.09416103 5.25531530 -2.82968760
+v -1.78437591 5.25532913 -2.88718748
+v -1.79875088 5.25532866 -2.84406257
+v -1.72687602 5.25533152 -2.84406257
+v -1.72687542 5.25533199 -2.78272915
+v -1.62625134 5.25533628 -2.77199841
+v -1.81312549 5.25532770 -2.78272772
+v -1.65500021 5.25533485 -2.78273034
+v -1.61187530 5.25533676 -2.78273106
+v -1.61187613 5.25533676 -2.85843754
+v -1.64062607 5.25533581 -2.87281251
+v -1.58312607 5.25533819 -2.87281251
+v -1.58312523 5.25533819 -2.78273153
+v -1.75562596 5.25533056 -2.95906234
+v -1.71250105 5.25533247 -2.95906234
+v -1.71250105 5.25533247 -2.93031240
+v -1.79875088 5.25532866 -2.93031240
+v -1.42500126 5.25534534 -2.93031240
+v -1.35312629 5.25534868 -2.93031240
+v -1.35312629 5.25534868 -2.97343731
+v -1.28125143 5.25535202 -2.97343731
+v -1.28125143 5.25535202 -3.00218749
+v -1.09437656 5.25536060 -3.00218749
+v -0.96169722 5.25536633 -2.95906234
+v -0.96169722 5.25536633 -2.88718748
+v -1.01189661 5.25536442 -2.88718748
+v -0.96169722 5.25536633 -2.87281251
+v -0.96169722 5.25536633 -2.81531262
+v -1.01189661 5.25536442 -2.80093765
+v -0.96169716 5.25536633 -2.80093765
+v -0.97937679 5.25536585 -2.77216244
+v -1.78437591 5.25532913 -2.77214885
+v -1.71250105 5.25533247 -2.88718748
+v -1.64062607 5.25533581 -2.93031240
+v -1.62625110 5.25533628 -2.97343731
+v -1.49687624 5.25534201 -2.94468737
+v -1.49687624 5.25534201 -2.97343731
+v -1.46812618 5.25534344 -2.95906234
+v -1.45375121 5.25534391 -2.98781228
+v -1.58312607 5.25533819 -2.90156245
+v -1.64062607 5.25533581 -2.90156245
+v -1.54000115 5.25534010 -2.94468737
+v -1.58312607 5.25533819 -2.93031240
+v -1.54000115 5.25534010 -2.95906234
+v -1.51125121 5.25534153 -2.93031240
+v -1.45375121 5.25534391 -2.94468737
+v -1.45375121 5.25534391 -2.88718748
+v -1.48250127 5.25534296 -2.88718748
+v -1.48250127 5.25534296 -2.91593742
+v -1.51125121 5.25534153 -2.98781228
+v -1.51125121 5.25534153 -2.94468737
+v -1.56875110 5.25533915 -2.95906234
+v -1.54000115 5.25534010 -3.00218749
+v -1.33875132 5.25534916 -2.91593742
+v -1.31000137 5.25535059 -2.91593742
+v -1.31000137 5.25535059 -2.88718748
+v -1.33875132 5.25534916 -2.88718748
+v -1.33875132 5.25534916 -2.84406257
+v -1.31000137 5.25535059 -2.84406257
+v -1.31000054 5.25535059 -2.78273630
+v -1.33875048 5.25534964 -2.78273559
+v -1.42500126 5.25534534 -2.88718748
+v -1.39625132 5.25534678 -2.91593742
+v -1.38187635 5.25534725 -2.85843754
+v -1.68375099 5.25533390 -2.87281251
+v -1.69812608 5.25533295 -2.84406257
+v -1.65500104 5.25533485 -2.84406257
+v -2.04312563 5.25531721 -2.90156245
+v -2.04312563 5.25531721 -2.87281251
+v -2.09416103 5.25531530 -2.87281251
+v -2.09416103 5.25531530 -2.90156245
+v -2.28750038 5.25530624 -2.93031240
+v -2.18683791 5.25531054 -2.88718724
+v -2.34500027 5.25530386 -2.91593742
+v -2.25875044 5.25530767 -2.84406257
+v -2.18683839 5.25531054 -2.82968736
+v -2.25874972 5.25530767 -2.78272009
+v -2.37375021 5.25530243 -2.87281251
+v -2.35937548 5.25530291 -2.85843754
+v -2.38812542 5.25530148 -2.85843754
+v -2.28750038 5.25530624 -2.88718748
+v -2.31625032 5.25530481 -2.85843754
+v -2.35937548 5.25530291 -2.87281251
+v -2.37375021 5.25530243 -2.90156245
+v -2.35937548 5.25530291 -2.91593742
+v -2.38812542 5.25530148 -2.91593742
+v -2.52208900 5.25529575 -2.81531262
+v -2.44562483 5.25529909 -2.78271675
+v -2.50312495 5.25529671 -2.78271580
+v -2.52208900 5.25529575 -2.84406257
+v -2.57499957 5.25529337 -2.78271461
+v -2.57500029 5.25529337 -2.84406257
+v -2.66125011 5.25528908 -2.88718748
+v -2.64687514 5.25529003 -2.85843754
+v -2.67562509 5.25528860 -2.85843754
+v -2.18683743 5.25531054 -2.95906258
+v -2.06969142 5.25531626 -2.78272319
+vt 0.11773991 0.41539276
+vt 0.17655718 0.41953215
+vt 0.17655718 0.41125336
+vt 0.47064355 0.70740724
+vt 0.58827811 0.70740724
+vt 0.58827811 0.69273269
+vt 0.47064355 0.73826605
+vt 0.41182628 0.74654490
+vt 0.58827811 0.74240553
+vt 0.17655718 0.73412675
+vt 0.23537445 0.73826605
+vt 0.23537445 0.72998726
+vt 0.29419172 0.72584796
+vt 0.23537445 0.75482368
+vt 0.35300902 0.73826605
+vt 0.35300902 0.70740712
+vt 0.94204116 0.45678666
+vt 1.00000000 0.67389721
+vt 0.89807141 0.69273269
+vt 0.76472992 0.67389721
+vt 0.89807922 0.65961754
+vt 0.70591170 0.64720994
+vt 0.64709538 0.67389721
+vt 0.89806944 0.70101160
+vt 0.76472992 0.70740724
+vt 0.89806551 0.71756929
+vt 0.89805579 0.75482392
+vt 0.52946085 0.75068432
+vt 0.47064355 0.76724190
+vt 0.35300902 0.76724190
+vt 0.35300902 0.74654490
+vt 0.58827811 0.73826605
+vt 0.41182628 0.73826605
+vt 0.29419172 0.70740712
+vt 0.17655718 0.70740712
+vt 0.11773991 0.69273269
+vt 0.11773991 0.67389721
+vt 0.23537445 0.68859327
+vt 0.11773991 0.64721030
+vt 0.29419172 0.55067164
+vt 0.11773991 0.55067164
+vt 0.17655718 0.53543538
+vt 0.05892263 0.52301717
+vt 0.11773991 0.50232017
+vt 0.00010438 0.50232017
+vt 0.17655718 0.49404138
+vt 0.00010438 0.48990199
+vt 0.11773991 0.48576260
+vt 0.05892263 0.46920499
+vt 0.17655718 0.45678675
+vt 0.00010438 0.45678675
+vt 0.11773991 0.44850793
+vt 0.00010438 0.41539276
+vt 0.11773991 0.41125336
+vt 0.00010438 0.40711397
+vt 0.11773991 0.38641691
+vt 0.00010438 0.34088346
+vt 0.00000000 0.00058686
+vt 0.99982828 0.00000000
+vt 0.64709538 0.68859327
+vt 0.89807141 0.69273287
+vt 0.70591265 0.67389721
+vt 0.47064355 0.76310253
+vt 0.64709538 0.75896311
+vt 0.64709538 0.77966011
+vt 0.89804995 0.77966028
+vt 0.94195634 0.80863589
+vt 0.89805579 0.75482380
+vt 0.89804506 0.80035734
+vt 0.89804214 0.81277555
+vt 0.58827811 0.81277537
+vt 0.52946085 0.80449653
+vt 0.52946085 0.82105416
+vt 0.89804018 0.82105440
+vt 0.17655718 0.77138132
+vt 0.17655718 0.78379947
+vt 0.29419172 0.78379947
+vt 0.29419172 0.75896311
+vt 0.29419172 0.86658758
+vt 0.29419172 0.88728458
+vt 0.11773991 0.88728458
+vt 0.11773991 0.90798157
+vt 0.00010438 0.90798157
+vt 0.00010438 0.96179378
+vt 0.17655718 1.00000000
+vt 0.47064355 1.00000000
+vt 0.47064355 0.98554462
+vt 0.52946085 1.00000000
+vt 0.76472992 1.00000000
+vt 0.82354718 0.98554462
+vt 0.82354718 1.00000000
+vt 0.94128513 0.99490899
+vt 0.94134074 0.76310253
+vt 0.47064355 0.78379947
+vt 0.29419172 0.80449653
+vt 0.11773991 0.80863589
+vt 0.23537445 0.84589052
+vt 0.11773991 0.84589052
+vt 0.17655718 0.85416931
+vt 0.05892263 0.85830879
+vt 0.41182628 0.82105416
+vt 0.41182628 0.80449653
+vt 0.23537445 0.83347231
+vt 0.29419172 0.82105416
+vt 0.17655718 0.83347231
+vt 0.29419172 0.84175116
+vt 0.23537445 0.85830879
+vt 0.47064355 0.85830879
+vt 0.47064355 0.85002995
+vt 0.35300902 0.85002995
+vt 0.05892263 0.84175116
+vt 0.23537445 0.84175116
+vt 0.17655718 0.82519352
+vt 0.00010438 0.83347231
+vt 0.35300902 0.89142400
+vt 0.35300902 0.89970279
+vt 0.47064355 0.89970279
+vt 0.47064355 0.89142400
+vt 0.64709538 0.89142400
+vt 0.64709538 0.89970279
+vt 0.89802068 0.89970303
+vt 0.89802361 0.89142424
+vt 0.47064355 0.86658758
+vt 0.35300902 0.87486637
+vt 0.58827811 0.87900573
+vt 0.52946085 0.79207832
+vt 0.64709538 0.78793889
+vt 0.64709538 0.80035710
+vt 0.41182628 0.68859327
+vt 0.52946085 0.68859327
+vt 0.52946085 0.67389721
+vt 0.41182628 0.67389721
+vt 0.29419172 0.61822343
+vt 0.47064453 0.64721006
+vt 0.35300902 0.60166585
+vt 0.64709538 0.62650228
+vt 0.70591360 0.64720994
+vt 0.89808702 0.62650245
+vt 0.52946085 0.59338707
+vt 0.58827811 0.59752637
+vt 0.58827811 0.58924758
+vt 0.47064355 0.61822343
+vt 0.58827811 0.60994464
+vt 0.52946085 0.59752637
+vt 0.41182628 0.59338707
+vt 0.35300902 0.59752637
+vt 0.35300902 0.58924758
+vt 0.76472992 0.55067164
+vt 0.89810067 0.57269013
+vt 0.89810455 0.55613250
+vt 0.64709538 0.55067164
+vt 0.89810944 0.53543556
+vt 0.64709538 0.53543538
+vt 0.47064355 0.51059896
+vt 0.58827811 0.51473838
+vt 0.58827811 0.50645959
+vt 0.17655620 0.64721024
+vt 0.89807433 0.68094343
+f 7/7 8/8 9/9
+f 10/10 11/11 12/12
+f 14/14 9/9 15/15
+f 15/15 16/16 13/13
+f 13/13 14/14 15/15
+f 133/133 39/39 157/157
+f 38/38 37/37 36/36
+f 38/38 35/35 34/34
+f 141/141 147/147 145/145
+f 42/42 153/153 154/154
+f 145/145 144/144 139/139
+f 140/140 139/139 144/144
+f 135/135 145/145 146/146
+f 146/146 147/147 133/133
+f 157/157 134/134 133/133
+f 38/38 129/129 132/132
+f 129/129 6/6 130/130
+f 32/32 4/4 33/33
+f 141/141 149/149 151/151
+f 151/151 149/149 148/148
+f 134/134 22/22 136/136
+f 18/18 20/20 158/158
+f 40/40 151/151 153/153
+f 28/28 31/31 30/30
+f 30/30 29/29 28/28
+f 32/32 27/27 26/26
+f 25/25 24/24 19/19
+f 152/152 18/18 17/17
+f 57/57 59/59 58/58
+f 17/17 57/57 56/56
+f 56/56 55/55 54/54
+f 2/2 53/53 52/52
+f 53/53 2/2 1/1
+f 52/52 51/51 50/50
+f 50/50 49/49 48/48
+f 48/48 47/47 46/46
+f 46/46 45/45 44/44
+f 154/154 43/43 42/42
+f 42/42 41/41 40/40
+f 132/132 157/157 38/38
+f 35/35 38/38 36/36
+f 151/151 40/40 147/147
+f 141/141 145/145 139/139
+f 140/140 144/144 143/143
+f 145/145 135/135 144/144
+f 146/146 133/133 135/135
+f 157/157 132/132 134/134
+f 4/4 129/129 34/34
+f 4/4 32/32 5/5
+f 152/152 151/151 148/148
+f 140/140 149/149 141/141
+f 137/137 136/136 22/22
+f 149/149 140/140 138/138
+f 31/31 28/28 32/32
+f 5/5 26/26 25/25
+f 57/57 17/17 59/59
+f 54/54 53/53 1/1
+f 2/2 52/52 50/50
+f 156/156 48/48 46/46
+f 43/43 154/154 44/44
+f 129/129 38/38 34/34
+f 151/151 147/147 141/141
+f 144/144 135/135 142/142
+f 134/134 132/132 131/131
+f 6/6 129/129 4/4
+f 26/26 5/5 32/32
+f 152/152 148/148 150/150
+f 137/137 22/22 21/21
+f 142/142 136/136 143/143
+f 27/27 32/32 28/28
+f 54/54 1/1 3/3
+f 153/153 42/42 40/40
+f 147/147 39/39 133/133
+f 142/142 135/135 134/134
+f 23/23 130/130 6/6
+f 25/25 6/6 5/5
+f 18/18 150/150 149/149
+f 138/138 137/137 21/21
+f 6/6 158/158 23/23
+f 56/56 54/54 3/3
+f 44/44 154/154 46/46
+f 39/39 147/147 40/40
+f 136/136 142/142 134/134
+f 130/130 23/23 131/131
+f 18/18 138/138 21/21
+f 19/19 6/6 25/25
+f 17/17 56/56 3/3
+f 156/156 46/46 154/154
+f 23/23 134/134 131/131
+f 6/6 19/19 158/158
+f 17/17 3/3 2/2
+f 48/48 156/156 50/50
+f 22/22 134/134 23/23
+f 18/18 158/158 19/19
+f 50/50 17/17 2/2
+f 138/138 143/143 136/136
+f 20/20 18/18 21/21
+f 50/50 156/156 17/17
+f 143/143 138/138 140/140
+f 138/138 18/18 149/149
+f 152/152 156/156 155/155
+f 154/154 153/153 155/155
+f 18/18 152/152 150/150
+f 152/152 155/155 153/153
+f 156/156 152/152 17/17
+f 60/60 61/61 62/62
+f 64/64 65/65 66/66
+f 66/66 67/67 68/68
+f 28/28 63/63 64/64
+f 64/64 66/66 68/68
+f 68/68 28/28 64/64
+f 75/75 76/76 77/77
+f 77/77 78/78 75/75
+f 101/101 104/104 103/103
+f 103/103 96/96 97/97
+f 97/97 98/98 99/99
+f 99/99 100/100 79/79
+f 79/79 80/80 124/124
+f 125/125 119/119 122/122
+f 118/118 119/119 125/125
+f 80/80 118/118 124/124
+f 118/118 80/80 115/115
+f 116/116 81/81 82/82
+f 82/82 83/83 84/84
+f 87/87 85/85 86/86
+f 87/87 88/88 89/89
+f 90/90 91/91 92/92
+f 28/28 93/93 68/68
+f 127/127 28/28 94/94
+f 128/128 126/126 72/72
+f 128/128 71/71 70/70
+f 127/127 94/94 126/126
+f 102/102 77/77 95/95
+f 95/95 96/96 102/102
+f 73/73 103/103 97/97
+f 97/97 99/99 79/79
+f 79/79 124/124 123/123
+f 74/74 125/125 122/122
+f 124/124 118/118 125/125
+f 116/116 115/115 80/80
+f 117/117 82/82 84/84
+f 85/85 87/87 84/84
+f 87/87 89/89 90/90
+f 93/93 28/28 127/127
+f 71/71 128/128 72/72
+f 77/77 126/126 94/94
+f 126/126 77/77 102/102
+f 123/123 97/97 79/79
+f 119/119 118/118 120/120
+f 81/81 116/116 80/80
+f 120/120 87/87 90/90
+f 69/69 127/127 128/128
+f 128/128 70/70 69/69
+f 126/126 102/102 72/72
+f 72/72 102/102 101/101
+f 73/73 97/97 123/123
+f 120/120 118/118 117/117
+f 82/82 117/117 116/116
+f 93/93 127/127 69/69
+f 72/72 101/101 73/73
+f 125/125 74/74 123/123
+f 87/87 120/120 117/117
+f 87/87 117/117 84/84
+f 74/74 93/93 69/69
+f 103/103 73/73 101/101
+f 120/120 90/90 121/121
+f 122/122 93/93 74/74
+f 73/73 123/123 74/74
+f 121/121 90/90 92/92
+f 93/93 122/122 92/92
+f 122/122 121/121 92/92
+f 110/110 108/108 109/109
+f 105/105 102/102 96/96
+f 102/102 105/105 106/106
+f 108/108 110/110 107/107
+f 102/102 106/106 110/110
+f 106/106 107/107 110/110
+f 111/111 112/112 113/113
+f 113/113 114/114 111/111
+
diff --git a/ai_002_003/background_mesh/8.obj b/ai_002_003/background_mesh/8.obj
new file mode 100644
index 0000000000000000000000000000000000000000..39b85d7f492979d13a1976137cbf1da749932c23
--- /dev/null
+++ b/ai_002_003/background_mesh/8.obj
@@ -0,0 +1,35 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -4.35251188 5.18874264 -2.78268361
+v -1.10748494 5.18841028 -2.78273892
+v -1.10748684 2.01678348 -2.78269649
+v -4.35251141 2.01663613 -2.78264117
+v -3.48811674 2.38634515 -2.78266120
+v -3.50228715 2.40051556 -2.78266120
+v -3.50228715 2.37217474 -2.78266072
+v -4.31000042 2.08876657 -2.78264308
+v -4.29582787 2.01663876 -2.78264213
+v -4.32416868 2.01663733 -2.78264165
+v -4.36925936 2.07459044 -2.78264189
+vt 0.00513447 1.00000000
+vt 1.00000000 0.99989522
+vt 0.99999940 0.00004645
+vt 0.00513461 0.00000000
+vt 0.27014211 0.11655000
+vt 0.26579773 0.12101720
+vt 0.26579773 0.11208281
+vt 0.01816770 0.02273897
+vt 0.02251275 0.00000083
+vt 0.01382397 0.00000038
+vt 0.00000000 0.01826998
+f 5/5 2/2 3/3
+f 3/3 4/4 7/7
+f 6/6 7/7 4/4
+f 3/3 7/7 5/5
+f 6/6 4/4 1/1
+f 6/6 2/2 5/5
+f 2/2 6/6 1/1
+f 8/8 9/9 10/10
+f 10/10 11/11 8/8
+
diff --git a/ai_002_003/background_mesh/9.obj b/ai_002_003/background_mesh/9.obj
new file mode 100644
index 0000000000000000000000000000000000000000..54ac21e1dbba42c45a8ee8607db97b2268214ba8
--- /dev/null
+++ b/ai_002_003/background_mesh/9.obj
@@ -0,0 +1,205 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 3.20382595 -1.68550169 -5.41157246
+v 3.20382643 -1.68549931 -3.75631237
+v -0.36224753 -1.68566132 -3.75631237
+v -0.37639862 -1.68566203 -3.78461456
+v -0.36224753 -1.68566144 -3.85537004
+v -0.31979424 -1.68565965 -3.86952114
+v 0.38776016 -1.68562734 -3.85537004
+v 0.30285370 -1.68563187 -4.29405403
+v 0.38776016 -1.68562794 -4.29405403
+v 0.41606236 -1.68562675 -4.40726233
+v 0.38776016 -1.68562818 -4.43556452
+v 0.26040041 -1.68563402 -4.43556452
+v 0.26040041 -1.68563402 -4.50632000
+v 0.20403461 -1.68563664 -4.50631952
+v 0.20403342 -1.68563688 -4.63367939
+v 0.23209846 -1.68563569 -4.67400551
+v 0.20403221 -1.68563700 -4.76103926
+v 0.62832868 -1.68561769 -4.77519083
+v 0.20403208 -1.68563700 -4.77519035
+v 0.20403183 -1.68563712 -4.80349255
+v 1.27927864 -1.68558824 -4.80349302
+v 1.27927852 -1.68558836 -4.89115047
+v 1.26512766 -1.68558896 -4.89115047
+v 1.26512754 -1.68558896 -4.94500399
+v 1.20852315 -1.68559146 -4.95915508
+v 1.20852351 -1.68559182 -5.04738712
+v 0.75568825 -1.68561232 -5.04739094
+v 0.75568855 -1.68561232 -5.10066605
+v 0.33115578 -1.68563175 -5.17142105
+v 0.33115646 -1.68563199 -5.23222685
+v 0.24624979 -1.68563581 -5.23222780
+v 0.20402810 -1.68563759 -5.19972277
+v 0.16134304 -1.68563974 -5.23222923
+v -0.13583058 -1.68565321 -5.23223352
+v -0.13583004 -1.68565309 -5.28462982
+v -0.48960739 -1.68566930 -5.35538530
+v -0.48960811 -1.68566954 -5.41150999
+v 0.07643569 -1.68564379 -5.41151953
+v 0.10711960 -1.68564236 -5.38368750
+v 0.14719117 -1.68564057 -5.41152048
+v 0.20402637 -1.68563783 -5.38368750
+v 0.23209774 -1.68563676 -5.41152191
+v 0.89719927 -1.68560493 -4.39311123
+v 1.05286133 -1.68559790 -4.37896061
+v 1.05286133 -1.68559778 -4.29405403
+v 0.91135037 -1.68560421 -4.29405403
+v 0.72738636 -1.68561268 -4.39311123
+v 0.81229270 -1.68560874 -4.39311123
+v 0.79814184 -1.68560934 -4.29405403
+v 0.72738636 -1.68561256 -4.29405403
+v -2.03207588 -1.68573821 -4.57707548
+v -2.03207660 -1.68573952 -5.41148329
+v -1.97688031 -1.68573689 -5.38368750
+v -1.94716978 -1.68573570 -5.41148520
+v -1.04150009 -1.68569458 -5.41150045
+v -0.96078742 -1.68569076 -5.38368750
+v -0.92829138 -1.68568945 -5.41150236
+v -0.89237386 -1.68568766 -5.38368845
+v -0.89235789 -1.68568718 -5.05821323
+v -0.91414005 -1.68568814 -5.04740477
+v -0.89234889 -1.68568695 -4.87424898
+v -0.91414005 -1.68568790 -4.89114237
+v -0.89234054 -1.68568683 -4.70443583
+v -0.91414005 -1.68568766 -4.67401505
+v -0.89233983 -1.68568683 -4.69028473
+v -0.89229405 -1.68568552 -3.75631285
+v -2.03207588 -1.68573713 -3.75631237
+vt 0.00000000 1.00000000
+vt 1.00000000 1.00000000
+vt 1.00000000 0.31891903
+vt 0.98290169 0.31621632
+vt 0.94015580 0.31891903
+vt 0.93160665 0.32702714
+vt 0.94015580 0.46216229
+vt 0.67513162 0.44594607
+vt 0.67513162 0.46216229
+vt 0.60673857 0.46756768
+vt 0.58964026 0.46216229
+vt 0.58964026 0.43783793
+vt 0.54689437 0.43783793
+vt 0.54689467 0.42707270
+vt 0.46995217 0.42707247
+vt 0.44558975 0.43243259
+vt 0.39300966 0.42707226
+vt 0.38446021 0.50810820
+vt 0.38446048 0.42707220
+vt 0.36736214 0.42707217
+vt 0.36736187 0.63243252
+vt 0.31440496 0.63243252
+vt 0.31440496 0.62972987
+vt 0.28187019 0.62972981
+vt 0.27332103 0.61891896
+vt 0.22001699 0.61891907
+vt 0.22001468 0.53243250
+vt 0.18782935 0.53243256
+vt 0.14508379 0.45135146
+vt 0.10834890 0.45135161
+vt 0.10834832 0.43513533
+vt 0.12798575 0.42707148
+vt 0.10834746 0.41891912
+vt 0.10834487 0.36216217
+vt 0.07669044 0.36216229
+vt 0.03394461 0.29459468
+vt 0.00003774 0.29459456
+vt 0.00003198 0.40270269
+vt 0.01684627 0.40856299
+vt 0.00003140 0.41621622
+vt 0.01684627 0.42707112
+vt 0.00003054 0.43243244
+vt 0.61528772 0.55945957
+vt 0.62383664 0.58918929
+vt 0.67513162 0.58918929
+vt 0.67513162 0.56216222
+vt 0.61528772 0.52702713
+vt 0.61528772 0.54324329
+vt 0.67513162 0.54054064
+vt 0.67513162 0.52702713
+vt 0.50414854 0.00000014
+vt 0.00005387 0.00000000
+vt 0.01684627 0.01054189
+vt 0.00005272 0.01621627
+vt 0.00004350 0.18918924
+vt 0.01684627 0.20460448
+vt 0.00004235 0.21081086
+vt 0.01684570 0.21767071
+vt 0.21347655 0.21767376
+vt 0.22000633 0.21351361
+vt 0.32461575 0.21767546
+vt 0.31440985 0.21351361
+vt 0.42720574 0.21767706
+vt 0.44558400 0.21351361
+vt 0.43575493 0.21767721
+vt 0.99999970 0.21768594
+vt 1.00000000 0.00000014
+f 6/6 3/3 4/4
+f 4/4 5/5 6/6
+f 7/7 8/8 9/9
+f 50/50 10/10 47/47
+f 49/49 48/48 43/43
+f 18/18 10/10 11/11
+f 11/11 12/12 13/13
+f 13/13 14/14 15/15
+f 16/16 17/17 18/18
+f 18/18 19/19 20/20
+f 22/22 23/23 24/24
+f 24/24 25/25 26/26
+f 26/26 27/27 28/28
+f 28/28 29/29 30/30
+f 31/31 32/32 33/33
+f 33/33 34/34 35/35
+f 35/35 36/36 37/37
+f 35/35 38/38 39/39
+f 39/39 40/40 41/41
+f 26/26 42/42 1/1
+f 7/7 3/3 6/6
+f 10/10 50/50 9/9
+f 49/49 43/43 46/46
+f 10/10 18/18 47/47
+f 16/16 13/13 15/15
+f 11/11 16/16 18/18
+f 18/18 20/20 21/21
+f 42/42 28/28 30/30
+f 39/39 33/33 35/35
+f 38/38 35/35 37/37
+f 3/3 7/7 2/2
+f 9/9 50/50 7/7
+f 47/47 18/18 48/48
+f 13/13 16/16 11/11
+f 41/41 33/33 39/39
+f 45/45 2/2 7/7
+f 7/7 50/50 49/49
+f 48/48 18/18 43/43
+f 33/33 41/41 31/31
+f 7/7 49/49 46/46
+f 21/21 43/43 18/18
+f 31/31 41/41 30/30
+f 7/7 46/46 45/45
+f 43/43 21/21 44/44
+f 42/42 30/30 41/41
+f 21/21 2/2 45/45
+f 45/45 44/44 21/21
+f 28/28 42/42 26/26
+f 2/2 21/21 1/1
+f 24/24 26/26 1/1
+f 1/1 21/21 22/22
+f 22/22 24/24 1/1
+f 51/51 52/52 53/53
+f 60/60 54/54 55/55
+f 56/56 57/57 58/58
+f 56/56 59/59 60/60
+f 60/60 61/61 62/62
+f 62/62 63/63 64/64
+f 64/64 65/65 66/66
+f 66/66 67/67 51/51
+f 54/54 51/51 53/53
+f 59/59 56/56 58/58
+f 64/64 66/66 51/51
+f 60/60 55/55 56/56
+f 54/54 60/60 62/62
+f 62/62 64/64 51/51
+f 54/54 62/62 51/51
+
diff --git a/ai_002_003/background_mesh/albedo_1.png b/ai_002_003/background_mesh/albedo_1.png
new file mode 100644
index 0000000000000000000000000000000000000000..3c9c8eac52e6ca177aa7f824b724c469d68d5966
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_1.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3da17628dae7450bb53eabbd7abcd7069c1b0cd641f07f7db06a629add328bd6
+size 1142627
diff --git a/ai_002_003/background_mesh/albedo_10.png b/ai_002_003/background_mesh/albedo_10.png
new file mode 100644
index 0000000000000000000000000000000000000000..8ae64f8ddbe067ddd4475ae85516a8e8e25a7b61
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_10.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:392b0983f965ed1a6c8ba2c99b80e5c05400ea140ad5a7eba7cb25c6f280adc7
+size 1353213
diff --git a/ai_002_003/background_mesh/albedo_11.png b/ai_002_003/background_mesh/albedo_11.png
new file mode 100644
index 0000000000000000000000000000000000000000..48415c59b4ff032474517032e4223bd4e9f191c9
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_11.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:75061c53e956aae571a4862768f54b535a1c81cb8a9cb01ce8f7a827c38e2f4d
+size 1774347
diff --git a/ai_002_003/background_mesh/albedo_12.png b/ai_002_003/background_mesh/albedo_12.png
new file mode 100644
index 0000000000000000000000000000000000000000..677c2a1f3bf363c7a953d2833accd8f353ca9915
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_12.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:da3ac0788c9f764f334a18503d97f4bd12a5039c04dd3fab518f2aed2f80eb3c
+size 2193772
diff --git a/ai_002_003/background_mesh/albedo_13.png b/ai_002_003/background_mesh/albedo_13.png
new file mode 100644
index 0000000000000000000000000000000000000000..88401f8d77f0e14382dcca4b76fe6c761a59ac0b
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_13.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8c4ee50b1f638f5015b5295b7a094d384c66178ad658b8f46e7100b258b800e9
+size 1024573
diff --git a/ai_002_003/background_mesh/albedo_14.png b/ai_002_003/background_mesh/albedo_14.png
new file mode 100644
index 0000000000000000000000000000000000000000..bab50f383724e6452cd1ed5261e5e715de49a31a
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_14.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f5bc6d1210f1517e357f91edbd52bbb29d24e74418cea884597ada7efcc9215f
+size 885584
diff --git a/ai_002_003/background_mesh/albedo_15.png b/ai_002_003/background_mesh/albedo_15.png
new file mode 100644
index 0000000000000000000000000000000000000000..60cfd578f86270bac2822709f5e1248efabee822
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_15.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:494a124ddc0ef30b5fd9fc29460953de6e2f7ceb03eed4607f3c3ecb3edc808d
+size 1877868
diff --git a/ai_002_003/background_mesh/albedo_16.png b/ai_002_003/background_mesh/albedo_16.png
new file mode 100644
index 0000000000000000000000000000000000000000..e31c98f0a92af01d5a1a4ac4cf9795f96af2313b
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_16.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cae1d49e8118a7f8d1e00ec50d1757250d2d9de37c9488280f685f3c20ab3b53
+size 1484396
diff --git a/ai_002_003/background_mesh/albedo_17.png b/ai_002_003/background_mesh/albedo_17.png
new file mode 100644
index 0000000000000000000000000000000000000000..e31c98f0a92af01d5a1a4ac4cf9795f96af2313b
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_17.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cae1d49e8118a7f8d1e00ec50d1757250d2d9de37c9488280f685f3c20ab3b53
+size 1484396
diff --git a/ai_002_003/background_mesh/albedo_18.png b/ai_002_003/background_mesh/albedo_18.png
new file mode 100644
index 0000000000000000000000000000000000000000..e31c98f0a92af01d5a1a4ac4cf9795f96af2313b
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_18.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cae1d49e8118a7f8d1e00ec50d1757250d2d9de37c9488280f685f3c20ab3b53
+size 1484396
diff --git a/ai_002_003/background_mesh/albedo_19.png b/ai_002_003/background_mesh/albedo_19.png
new file mode 100644
index 0000000000000000000000000000000000000000..e31c98f0a92af01d5a1a4ac4cf9795f96af2313b
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_19.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cae1d49e8118a7f8d1e00ec50d1757250d2d9de37c9488280f685f3c20ab3b53
+size 1484396
diff --git a/ai_002_003/background_mesh/albedo_2.png b/ai_002_003/background_mesh/albedo_2.png
new file mode 100644
index 0000000000000000000000000000000000000000..d26cb1b2a7f2f20f04de8a27c22ae562b352b50d
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_2.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e999eb8f75c33d8a722f89fc5cc907aad4ed4e90fe6bc13bd643e76538657693
+size 1019930
diff --git a/ai_002_003/background_mesh/albedo_20.png b/ai_002_003/background_mesh/albedo_20.png
new file mode 100644
index 0000000000000000000000000000000000000000..e31c98f0a92af01d5a1a4ac4cf9795f96af2313b
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_20.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cae1d49e8118a7f8d1e00ec50d1757250d2d9de37c9488280f685f3c20ab3b53
+size 1484396
diff --git a/ai_002_003/background_mesh/albedo_21.png b/ai_002_003/background_mesh/albedo_21.png
new file mode 100644
index 0000000000000000000000000000000000000000..e31c98f0a92af01d5a1a4ac4cf9795f96af2313b
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_21.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cae1d49e8118a7f8d1e00ec50d1757250d2d9de37c9488280f685f3c20ab3b53
+size 1484396
diff --git a/ai_002_003/background_mesh/albedo_22.png b/ai_002_003/background_mesh/albedo_22.png
new file mode 100644
index 0000000000000000000000000000000000000000..280bf8147a3ce94d00ea385714b62a9ed18f403e
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_22.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:842a239714322d985853c92b3ee86fb568a56f2ad3cd1cc79ec81b27e6a377b2
+size 1498898
diff --git a/ai_002_003/background_mesh/albedo_23.png b/ai_002_003/background_mesh/albedo_23.png
new file mode 100644
index 0000000000000000000000000000000000000000..6eb2063da7bcfdd778183117316b3952341787c9
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_23.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9787ae39f2ee743f7c5ab11c6877941996c879a6bc958b11be82bcdcc135c412
+size 1916941
diff --git a/ai_002_003/background_mesh/albedo_24.png b/ai_002_003/background_mesh/albedo_24.png
new file mode 100644
index 0000000000000000000000000000000000000000..e31c98f0a92af01d5a1a4ac4cf9795f96af2313b
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_24.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cae1d49e8118a7f8d1e00ec50d1757250d2d9de37c9488280f685f3c20ab3b53
+size 1484396
diff --git a/ai_002_003/background_mesh/albedo_25.png b/ai_002_003/background_mesh/albedo_25.png
new file mode 100644
index 0000000000000000000000000000000000000000..e31c98f0a92af01d5a1a4ac4cf9795f96af2313b
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_25.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cae1d49e8118a7f8d1e00ec50d1757250d2d9de37c9488280f685f3c20ab3b53
+size 1484396
diff --git a/ai_002_003/background_mesh/albedo_26.png b/ai_002_003/background_mesh/albedo_26.png
new file mode 100644
index 0000000000000000000000000000000000000000..e31c98f0a92af01d5a1a4ac4cf9795f96af2313b
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_26.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cae1d49e8118a7f8d1e00ec50d1757250d2d9de37c9488280f685f3c20ab3b53
+size 1484396
diff --git a/ai_002_003/background_mesh/albedo_27.png b/ai_002_003/background_mesh/albedo_27.png
new file mode 100644
index 0000000000000000000000000000000000000000..973c38025f54f3955f11e9217c1b29fb14446bfb
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_27.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8715efc705099fc0dc56f410549412774f07e81d06a78ea678ca653769b85945
+size 1096443
diff --git a/ai_002_003/background_mesh/albedo_28.png b/ai_002_003/background_mesh/albedo_28.png
new file mode 100644
index 0000000000000000000000000000000000000000..1cc27d49dda3c0b0c9d7ff45d4009d7da72ff562
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_28.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:456ddc1ede91ac0b03bc2c9af24af593188133e1bbfbb71a38b00c7474fdd667
+size 1978807
diff --git a/ai_002_003/background_mesh/albedo_29.png b/ai_002_003/background_mesh/albedo_29.png
new file mode 100644
index 0000000000000000000000000000000000000000..28a081a9de398221a5ffc346a93bf176e9af3b17
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_29.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cb070706670f51afe3e3ed18bc362fea32ea55b9d09e4cf6f61cc834f3c39e2e
+size 1107953
diff --git a/ai_002_003/background_mesh/albedo_3.png b/ai_002_003/background_mesh/albedo_3.png
new file mode 100644
index 0000000000000000000000000000000000000000..1cc769ee486f175e6476b631dd8ee304d1c01469
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_3.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a3c798b9b6d3f107cd67f0a13c236b8859c336c58ed37673ae6ce10273fdf87e
+size 1491039
diff --git a/ai_002_003/background_mesh/albedo_30.png b/ai_002_003/background_mesh/albedo_30.png
new file mode 100644
index 0000000000000000000000000000000000000000..e31c98f0a92af01d5a1a4ac4cf9795f96af2313b
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_30.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cae1d49e8118a7f8d1e00ec50d1757250d2d9de37c9488280f685f3c20ab3b53
+size 1484396
diff --git a/ai_002_003/background_mesh/albedo_31.png b/ai_002_003/background_mesh/albedo_31.png
new file mode 100644
index 0000000000000000000000000000000000000000..959884c037634e75cf55217f5d3ac986c0f60a5c
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_31.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ae43a63d6224de405cb8297489660550140ff1bc5fc1daab05aacf477f0a00e1
+size 1358518
diff --git a/ai_002_003/background_mesh/albedo_32.png b/ai_002_003/background_mesh/albedo_32.png
new file mode 100644
index 0000000000000000000000000000000000000000..e31c98f0a92af01d5a1a4ac4cf9795f96af2313b
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_32.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cae1d49e8118a7f8d1e00ec50d1757250d2d9de37c9488280f685f3c20ab3b53
+size 1484396
diff --git a/ai_002_003/background_mesh/albedo_33.png b/ai_002_003/background_mesh/albedo_33.png
new file mode 100644
index 0000000000000000000000000000000000000000..e31c98f0a92af01d5a1a4ac4cf9795f96af2313b
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_33.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cae1d49e8118a7f8d1e00ec50d1757250d2d9de37c9488280f685f3c20ab3b53
+size 1484396
diff --git a/ai_002_003/background_mesh/albedo_34.png b/ai_002_003/background_mesh/albedo_34.png
new file mode 100644
index 0000000000000000000000000000000000000000..e31c98f0a92af01d5a1a4ac4cf9795f96af2313b
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_34.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cae1d49e8118a7f8d1e00ec50d1757250d2d9de37c9488280f685f3c20ab3b53
+size 1484396
diff --git a/ai_002_003/background_mesh/albedo_35.png b/ai_002_003/background_mesh/albedo_35.png
new file mode 100644
index 0000000000000000000000000000000000000000..e31c98f0a92af01d5a1a4ac4cf9795f96af2313b
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_35.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cae1d49e8118a7f8d1e00ec50d1757250d2d9de37c9488280f685f3c20ab3b53
+size 1484396
diff --git a/ai_002_003/background_mesh/albedo_36.png b/ai_002_003/background_mesh/albedo_36.png
new file mode 100644
index 0000000000000000000000000000000000000000..e31c98f0a92af01d5a1a4ac4cf9795f96af2313b
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_36.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cae1d49e8118a7f8d1e00ec50d1757250d2d9de37c9488280f685f3c20ab3b53
+size 1484396
diff --git a/ai_002_003/background_mesh/albedo_37.png b/ai_002_003/background_mesh/albedo_37.png
new file mode 100644
index 0000000000000000000000000000000000000000..e31c98f0a92af01d5a1a4ac4cf9795f96af2313b
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_37.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cae1d49e8118a7f8d1e00ec50d1757250d2d9de37c9488280f685f3c20ab3b53
+size 1484396
diff --git a/ai_002_003/background_mesh/albedo_38.png b/ai_002_003/background_mesh/albedo_38.png
new file mode 100644
index 0000000000000000000000000000000000000000..354b5e84d6bbd7da0f972eed325d45454f23cad2
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_38.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b72cea23a5255c9c3295fe134d123574604a7ac1c48f782617f313ceb8ed324b
+size 813469
diff --git a/ai_002_003/background_mesh/albedo_39.png b/ai_002_003/background_mesh/albedo_39.png
new file mode 100644
index 0000000000000000000000000000000000000000..e31c98f0a92af01d5a1a4ac4cf9795f96af2313b
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_39.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cae1d49e8118a7f8d1e00ec50d1757250d2d9de37c9488280f685f3c20ab3b53
+size 1484396
diff --git a/ai_002_003/background_mesh/albedo_4.png b/ai_002_003/background_mesh/albedo_4.png
new file mode 100644
index 0000000000000000000000000000000000000000..bda01dd5afbaed8d06578f2759726f51487c724a
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_4.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0c571e18446797aad800d92d73dfa5bdc81b2d563f97b73919b2d762e07bd099
+size 1435644
diff --git a/ai_002_003/background_mesh/albedo_40.png b/ai_002_003/background_mesh/albedo_40.png
new file mode 100644
index 0000000000000000000000000000000000000000..e31c98f0a92af01d5a1a4ac4cf9795f96af2313b
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_40.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cae1d49e8118a7f8d1e00ec50d1757250d2d9de37c9488280f685f3c20ab3b53
+size 1484396
diff --git a/ai_002_003/background_mesh/albedo_41.png b/ai_002_003/background_mesh/albedo_41.png
new file mode 100644
index 0000000000000000000000000000000000000000..e31c98f0a92af01d5a1a4ac4cf9795f96af2313b
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_41.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cae1d49e8118a7f8d1e00ec50d1757250d2d9de37c9488280f685f3c20ab3b53
+size 1484396
diff --git a/ai_002_003/background_mesh/albedo_42.png b/ai_002_003/background_mesh/albedo_42.png
new file mode 100644
index 0000000000000000000000000000000000000000..e31c98f0a92af01d5a1a4ac4cf9795f96af2313b
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_42.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cae1d49e8118a7f8d1e00ec50d1757250d2d9de37c9488280f685f3c20ab3b53
+size 1484396
diff --git a/ai_002_003/background_mesh/albedo_5.png b/ai_002_003/background_mesh/albedo_5.png
new file mode 100644
index 0000000000000000000000000000000000000000..f9f3ede28080544e8fb4624020d5239405a3f6cc
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_5.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b87d9066681b5d75709a6aabcc013b9e80cb3aba4f00f7afb89feb7a799314bc
+size 994362
diff --git a/ai_002_003/background_mesh/albedo_6.png b/ai_002_003/background_mesh/albedo_6.png
new file mode 100644
index 0000000000000000000000000000000000000000..3c390fdf907515ff3c5e5d9940130444d4a484b9
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_6.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:edef4fe6b475f1f959b1d502f6f472442234489d556c08fe539497b8739d2099
+size 1762528
diff --git a/ai_002_003/background_mesh/albedo_7.png b/ai_002_003/background_mesh/albedo_7.png
new file mode 100644
index 0000000000000000000000000000000000000000..e31c98f0a92af01d5a1a4ac4cf9795f96af2313b
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_7.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cae1d49e8118a7f8d1e00ec50d1757250d2d9de37c9488280f685f3c20ab3b53
+size 1484396
diff --git a/ai_002_003/background_mesh/albedo_8.png b/ai_002_003/background_mesh/albedo_8.png
new file mode 100644
index 0000000000000000000000000000000000000000..b7b9ebf956e692076be153b819ccfd7052a3f998
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_8.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b11bc6c88b3f9b0bbee884ca37b86fbe18f446cb82a7b65e9e8f7e5f526cf4b4
+size 1156216
diff --git a/ai_002_003/background_mesh/albedo_9.png b/ai_002_003/background_mesh/albedo_9.png
new file mode 100644
index 0000000000000000000000000000000000000000..ce9a54597f7c7627afc7cfdebecec79e4f73eedf
--- /dev/null
+++ b/ai_002_003/background_mesh/albedo_9.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:94e5b4f12aa58c4abdafa67e2c266326d2718b91a428d054547524e4cfebff0a
+size 1340802
diff --git a/ai_002_003/background_mesh/metallic_1.png b/ai_002_003/background_mesh/metallic_1.png
new file mode 100644
index 0000000000000000000000000000000000000000..ee3a44ac8994c32ff0a3ca7d07e83743545e1374
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_1.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:461c2591b46e8a4087ae170a85dbb3ef464d25bcefeecb92b6e09b14adab22b2
+size 1148313
diff --git a/ai_002_003/background_mesh/metallic_10.png b/ai_002_003/background_mesh/metallic_10.png
new file mode 100644
index 0000000000000000000000000000000000000000..eb2c07a9dd002303e7a94d6478e096cfefb4ca25
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_10.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3a522ca8134f631af2db836d13799644d280181e3d3b753e60ce9a8e183a8217
+size 1598489
diff --git a/ai_002_003/background_mesh/metallic_11.png b/ai_002_003/background_mesh/metallic_11.png
new file mode 100644
index 0000000000000000000000000000000000000000..96b4e74d5c6457f3a81507f3188a581ab963bc21
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_11.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6c1c0c82b20e478a3f9bc551896307b1bcd99ed82608e2ccaccb1bbd41b4e941
+size 2295433
diff --git a/ai_002_003/background_mesh/metallic_12.png b/ai_002_003/background_mesh/metallic_12.png
new file mode 100644
index 0000000000000000000000000000000000000000..1a18a0bd5303b85b1bbd8fd57d41edfa822d9019
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_12.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d86a5276d30360c70a23af8ee8ab679563d608cd24797adb2f4d75a58f115601
+size 2107211
diff --git a/ai_002_003/background_mesh/metallic_13.png b/ai_002_003/background_mesh/metallic_13.png
new file mode 100644
index 0000000000000000000000000000000000000000..3b4863b9489ce176d6284946b7d7f62081918641
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_13.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c4291711a27196e9b822194c39528993997b964cc401d23e5d7018d250ba195f
+size 1987183
diff --git a/ai_002_003/background_mesh/metallic_14.png b/ai_002_003/background_mesh/metallic_14.png
new file mode 100644
index 0000000000000000000000000000000000000000..544b4638ba5441890609b62eae15966dc6028df5
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_14.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bad08f096446d8a19ce76d17aa939d6a62750d12bd490491fd74c413e9fad7c1
+size 1157978
diff --git a/ai_002_003/background_mesh/metallic_15.png b/ai_002_003/background_mesh/metallic_15.png
new file mode 100644
index 0000000000000000000000000000000000000000..76425077edf2889b87f4f057d76b9c9d7a1d08a5
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_15.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0453aa5e179967d893cca22551364a2fbe9f09fb276680f991bab9accd6480dc
+size 1865201
diff --git a/ai_002_003/background_mesh/metallic_16.png b/ai_002_003/background_mesh/metallic_16.png
new file mode 100644
index 0000000000000000000000000000000000000000..50038bbcfe5281450e9a1aa657603b07541a9373
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_16.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4e1202520f7daddaac4d574c0fdad0a00dd867f36783d7a72855c192114509db
+size 2298366
diff --git a/ai_002_003/background_mesh/metallic_17.png b/ai_002_003/background_mesh/metallic_17.png
new file mode 100644
index 0000000000000000000000000000000000000000..50038bbcfe5281450e9a1aa657603b07541a9373
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_17.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4e1202520f7daddaac4d574c0fdad0a00dd867f36783d7a72855c192114509db
+size 2298366
diff --git a/ai_002_003/background_mesh/metallic_18.png b/ai_002_003/background_mesh/metallic_18.png
new file mode 100644
index 0000000000000000000000000000000000000000..50038bbcfe5281450e9a1aa657603b07541a9373
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_18.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4e1202520f7daddaac4d574c0fdad0a00dd867f36783d7a72855c192114509db
+size 2298366
diff --git a/ai_002_003/background_mesh/metallic_19.png b/ai_002_003/background_mesh/metallic_19.png
new file mode 100644
index 0000000000000000000000000000000000000000..50038bbcfe5281450e9a1aa657603b07541a9373
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_19.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4e1202520f7daddaac4d574c0fdad0a00dd867f36783d7a72855c192114509db
+size 2298366
diff --git a/ai_002_003/background_mesh/metallic_2.png b/ai_002_003/background_mesh/metallic_2.png
new file mode 100644
index 0000000000000000000000000000000000000000..7a53e238d014c9b6540b24f1929b75bf7b8c71d3
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_2.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8ec19c963d1e73af3ec85c1b77ad5e3b078ba72b96fb76ff2af2aab69886c33e
+size 1256972
diff --git a/ai_002_003/background_mesh/metallic_20.png b/ai_002_003/background_mesh/metallic_20.png
new file mode 100644
index 0000000000000000000000000000000000000000..50038bbcfe5281450e9a1aa657603b07541a9373
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_20.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4e1202520f7daddaac4d574c0fdad0a00dd867f36783d7a72855c192114509db
+size 2298366
diff --git a/ai_002_003/background_mesh/metallic_21.png b/ai_002_003/background_mesh/metallic_21.png
new file mode 100644
index 0000000000000000000000000000000000000000..50038bbcfe5281450e9a1aa657603b07541a9373
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_21.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4e1202520f7daddaac4d574c0fdad0a00dd867f36783d7a72855c192114509db
+size 2298366
diff --git a/ai_002_003/background_mesh/metallic_22.png b/ai_002_003/background_mesh/metallic_22.png
new file mode 100644
index 0000000000000000000000000000000000000000..6eca46418db6c3829903b3f4ab03958ea6a7978f
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_22.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9005602c414ea2f96c4bbff9d7cbbc7000962700591329a38440d2f5171ac177
+size 2231843
diff --git a/ai_002_003/background_mesh/metallic_23.png b/ai_002_003/background_mesh/metallic_23.png
new file mode 100644
index 0000000000000000000000000000000000000000..824e242a59aef5f83e03c4a5df74e2966bc85de6
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_23.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9eb3295f8c030cea74dc41b5e5890df217d2340019f01fd6f96e1da11cee884a
+size 2289843
diff --git a/ai_002_003/background_mesh/metallic_24.png b/ai_002_003/background_mesh/metallic_24.png
new file mode 100644
index 0000000000000000000000000000000000000000..50038bbcfe5281450e9a1aa657603b07541a9373
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_24.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4e1202520f7daddaac4d574c0fdad0a00dd867f36783d7a72855c192114509db
+size 2298366
diff --git a/ai_002_003/background_mesh/metallic_25.png b/ai_002_003/background_mesh/metallic_25.png
new file mode 100644
index 0000000000000000000000000000000000000000..50038bbcfe5281450e9a1aa657603b07541a9373
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_25.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4e1202520f7daddaac4d574c0fdad0a00dd867f36783d7a72855c192114509db
+size 2298366
diff --git a/ai_002_003/background_mesh/metallic_26.png b/ai_002_003/background_mesh/metallic_26.png
new file mode 100644
index 0000000000000000000000000000000000000000..50038bbcfe5281450e9a1aa657603b07541a9373
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_26.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4e1202520f7daddaac4d574c0fdad0a00dd867f36783d7a72855c192114509db
+size 2298366
diff --git a/ai_002_003/background_mesh/metallic_27.png b/ai_002_003/background_mesh/metallic_27.png
new file mode 100644
index 0000000000000000000000000000000000000000..890a02970ff0e11524fbcd0334985a4410b78497
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_27.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9f1729090d982a4250443c6304c4bb6b568efd3e9c2524ef19bb5d552266cf44
+size 2195678
diff --git a/ai_002_003/background_mesh/metallic_28.png b/ai_002_003/background_mesh/metallic_28.png
new file mode 100644
index 0000000000000000000000000000000000000000..7e3be3abca0b25e8145eed20f35f65f61da29d57
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_28.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2e8f7223fb9a167a4ec2b3d00eeac78010dec7c60d5c73e2d30d580ed391d897
+size 1820433
diff --git a/ai_002_003/background_mesh/metallic_29.png b/ai_002_003/background_mesh/metallic_29.png
new file mode 100644
index 0000000000000000000000000000000000000000..674168ac5bcc8bddbea492d305ae4a7ff8d57a36
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_29.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fde89f58f1bf5f0568d1f907907a43e13f6de8130ed46047614ef715b1887bd3
+size 933727
diff --git a/ai_002_003/background_mesh/metallic_3.png b/ai_002_003/background_mesh/metallic_3.png
new file mode 100644
index 0000000000000000000000000000000000000000..9fd4989bb72cb5d9d72e1aeb7f534f6070109e70
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_3.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:75d6204ed598fb80027c285d519aac4ea41c7b0102960f70d1006aae4966e6f3
+size 1346897
diff --git a/ai_002_003/background_mesh/metallic_30.png b/ai_002_003/background_mesh/metallic_30.png
new file mode 100644
index 0000000000000000000000000000000000000000..50038bbcfe5281450e9a1aa657603b07541a9373
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_30.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4e1202520f7daddaac4d574c0fdad0a00dd867f36783d7a72855c192114509db
+size 2298366
diff --git a/ai_002_003/background_mesh/metallic_31.png b/ai_002_003/background_mesh/metallic_31.png
new file mode 100644
index 0000000000000000000000000000000000000000..e5cde9616168e6e226b001b58002692e2b4b24f2
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_31.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cbde6f51281216c3d815ba50f0af8ca84e8b0f214f6b5759508f844afea369c5
+size 2168922
diff --git a/ai_002_003/background_mesh/metallic_32.png b/ai_002_003/background_mesh/metallic_32.png
new file mode 100644
index 0000000000000000000000000000000000000000..50038bbcfe5281450e9a1aa657603b07541a9373
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_32.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4e1202520f7daddaac4d574c0fdad0a00dd867f36783d7a72855c192114509db
+size 2298366
diff --git a/ai_002_003/background_mesh/metallic_33.png b/ai_002_003/background_mesh/metallic_33.png
new file mode 100644
index 0000000000000000000000000000000000000000..50038bbcfe5281450e9a1aa657603b07541a9373
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_33.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4e1202520f7daddaac4d574c0fdad0a00dd867f36783d7a72855c192114509db
+size 2298366
diff --git a/ai_002_003/background_mesh/metallic_34.png b/ai_002_003/background_mesh/metallic_34.png
new file mode 100644
index 0000000000000000000000000000000000000000..50038bbcfe5281450e9a1aa657603b07541a9373
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_34.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4e1202520f7daddaac4d574c0fdad0a00dd867f36783d7a72855c192114509db
+size 2298366
diff --git a/ai_002_003/background_mesh/metallic_35.png b/ai_002_003/background_mesh/metallic_35.png
new file mode 100644
index 0000000000000000000000000000000000000000..50038bbcfe5281450e9a1aa657603b07541a9373
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_35.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4e1202520f7daddaac4d574c0fdad0a00dd867f36783d7a72855c192114509db
+size 2298366
diff --git a/ai_002_003/background_mesh/metallic_36.png b/ai_002_003/background_mesh/metallic_36.png
new file mode 100644
index 0000000000000000000000000000000000000000..50038bbcfe5281450e9a1aa657603b07541a9373
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_36.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4e1202520f7daddaac4d574c0fdad0a00dd867f36783d7a72855c192114509db
+size 2298366
diff --git a/ai_002_003/background_mesh/metallic_37.png b/ai_002_003/background_mesh/metallic_37.png
new file mode 100644
index 0000000000000000000000000000000000000000..50038bbcfe5281450e9a1aa657603b07541a9373
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_37.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4e1202520f7daddaac4d574c0fdad0a00dd867f36783d7a72855c192114509db
+size 2298366
diff --git a/ai_002_003/background_mesh/metallic_38.png b/ai_002_003/background_mesh/metallic_38.png
new file mode 100644
index 0000000000000000000000000000000000000000..be254e371a830f19599de8e320c92025591bbbb3
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_38.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:66f247a2585d3a5e6e3cc4a634633f19597dd8f8212f121d9cc32d2133d9be29
+size 1944177
diff --git a/ai_002_003/background_mesh/metallic_39.png b/ai_002_003/background_mesh/metallic_39.png
new file mode 100644
index 0000000000000000000000000000000000000000..50038bbcfe5281450e9a1aa657603b07541a9373
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_39.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4e1202520f7daddaac4d574c0fdad0a00dd867f36783d7a72855c192114509db
+size 2298366
diff --git a/ai_002_003/background_mesh/metallic_4.png b/ai_002_003/background_mesh/metallic_4.png
new file mode 100644
index 0000000000000000000000000000000000000000..317e5a55607bc8628ab6333842a66d8be49bc000
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_4.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1249864957f64a6ce89597a439e00afb777131ce3fb42f7232785249ce271cc2
+size 1183169
diff --git a/ai_002_003/background_mesh/metallic_40.png b/ai_002_003/background_mesh/metallic_40.png
new file mode 100644
index 0000000000000000000000000000000000000000..50038bbcfe5281450e9a1aa657603b07541a9373
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_40.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4e1202520f7daddaac4d574c0fdad0a00dd867f36783d7a72855c192114509db
+size 2298366
diff --git a/ai_002_003/background_mesh/metallic_41.png b/ai_002_003/background_mesh/metallic_41.png
new file mode 100644
index 0000000000000000000000000000000000000000..50038bbcfe5281450e9a1aa657603b07541a9373
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_41.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4e1202520f7daddaac4d574c0fdad0a00dd867f36783d7a72855c192114509db
+size 2298366
diff --git a/ai_002_003/background_mesh/metallic_42.png b/ai_002_003/background_mesh/metallic_42.png
new file mode 100644
index 0000000000000000000000000000000000000000..50038bbcfe5281450e9a1aa657603b07541a9373
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_42.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4e1202520f7daddaac4d574c0fdad0a00dd867f36783d7a72855c192114509db
+size 2298366
diff --git a/ai_002_003/background_mesh/metallic_5.png b/ai_002_003/background_mesh/metallic_5.png
new file mode 100644
index 0000000000000000000000000000000000000000..c86619d2b6a2ba9378b81e0a7b985278301dcfc2
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_5.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8adc84f6bd2f111e4055e6f1c2f9267383bbbc01d56d429179a2e9887eb14705
+size 1071077
diff --git a/ai_002_003/background_mesh/metallic_6.png b/ai_002_003/background_mesh/metallic_6.png
new file mode 100644
index 0000000000000000000000000000000000000000..45583e410f7f046c09b1fcc1f151b1a5837df418
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_6.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:35ee63300e3d60a45715b724e5d2a6a40ac03f77e144e68bf8ac9df4c68ddfbc
+size 1887777
diff --git a/ai_002_003/background_mesh/metallic_7.png b/ai_002_003/background_mesh/metallic_7.png
new file mode 100644
index 0000000000000000000000000000000000000000..50038bbcfe5281450e9a1aa657603b07541a9373
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_7.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4e1202520f7daddaac4d574c0fdad0a00dd867f36783d7a72855c192114509db
+size 2298366
diff --git a/ai_002_003/background_mesh/metallic_8.png b/ai_002_003/background_mesh/metallic_8.png
new file mode 100644
index 0000000000000000000000000000000000000000..0ec8858be2d266c20f42a04dc145b2c6048fbb8c
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_8.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:37cb5d0694a98a0b5a10c65482e429d1fcd9f4a0f82b023c0b24358fcadab9ad
+size 716998
diff --git a/ai_002_003/background_mesh/metallic_9.png b/ai_002_003/background_mesh/metallic_9.png
new file mode 100644
index 0000000000000000000000000000000000000000..14dfde0059974e658bb346187cf7d58374b2cce5
--- /dev/null
+++ b/ai_002_003/background_mesh/metallic_9.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:661fbcdc1955bd1a0d2ee3ddd832697350d0d479c1e9e4f1e3f297554fd9df8c
+size 2085379
diff --git a/ai_002_003/background_mesh/roughness_1.png b/ai_002_003/background_mesh/roughness_1.png
new file mode 100644
index 0000000000000000000000000000000000000000..49d69f2a874cf89214267edfb676f17fdd6b8014
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_1.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f7891434bf824908cca75e0211c3607349e58c0b3d074f4f3b0a326dbd04bd64
+size 928318
diff --git a/ai_002_003/background_mesh/roughness_10.png b/ai_002_003/background_mesh/roughness_10.png
new file mode 100644
index 0000000000000000000000000000000000000000..4ce902d7b8f4967165c326f92eb2bbda424b95e1
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_10.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c846d0822851ebcd27a27817c627debad3a947ab694ec8501f6ea28d01ebc7c8
+size 1541185
diff --git a/ai_002_003/background_mesh/roughness_11.png b/ai_002_003/background_mesh/roughness_11.png
new file mode 100644
index 0000000000000000000000000000000000000000..734a448795c0d03196054fb29682748a49d79db3
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_11.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:593968a4a6a3ef86431c452b7d7fcff0f5aede7dfd4b93a11791d38b5065d88e
+size 1354586
diff --git a/ai_002_003/background_mesh/roughness_12.png b/ai_002_003/background_mesh/roughness_12.png
new file mode 100644
index 0000000000000000000000000000000000000000..afd9ac5518a3232df92479436ed73162c8d168c1
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_12.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cebc035fd37a39be615e2fa75909a314ae9b7dd8da76afa461512a3669647a80
+size 2015876
diff --git a/ai_002_003/background_mesh/roughness_13.png b/ai_002_003/background_mesh/roughness_13.png
new file mode 100644
index 0000000000000000000000000000000000000000..602a606a9d45377bdbfb13efc7bb244ba4c1642f
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_13.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6dea7def3ccd7dab69569d283146c0bfcabf6eaabae8f73fd7b5aa8c900938dc
+size 1116329
diff --git a/ai_002_003/background_mesh/roughness_14.png b/ai_002_003/background_mesh/roughness_14.png
new file mode 100644
index 0000000000000000000000000000000000000000..e3624973442ebbfb3239152874dbefa98880f45a
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_14.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5c9d201fb9f474adb5ee6a4da1af7e519b7d7af938c37fee03387a9f44f721ac
+size 704391
diff --git a/ai_002_003/background_mesh/roughness_15.png b/ai_002_003/background_mesh/roughness_15.png
new file mode 100644
index 0000000000000000000000000000000000000000..be73632404e24512693f6fbfad7d1ffe3886fca2
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_15.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b3e4e17d6d870aecb5a25a466c6d00b95323dc621b8f4e69544b880c4ab8ca27
+size 1881026
diff --git a/ai_002_003/background_mesh/roughness_16.png b/ai_002_003/background_mesh/roughness_16.png
new file mode 100644
index 0000000000000000000000000000000000000000..aebba69bbeb4a4707790569dd01c95c9172a4289
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_16.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:295b6e6a27788b22fc47d94f777ab31a09ccd0c31e8afe24ec3be6fc6a875345
+size 2465168
diff --git a/ai_002_003/background_mesh/roughness_17.png b/ai_002_003/background_mesh/roughness_17.png
new file mode 100644
index 0000000000000000000000000000000000000000..aebba69bbeb4a4707790569dd01c95c9172a4289
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_17.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:295b6e6a27788b22fc47d94f777ab31a09ccd0c31e8afe24ec3be6fc6a875345
+size 2465168
diff --git a/ai_002_003/background_mesh/roughness_18.png b/ai_002_003/background_mesh/roughness_18.png
new file mode 100644
index 0000000000000000000000000000000000000000..aebba69bbeb4a4707790569dd01c95c9172a4289
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_18.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:295b6e6a27788b22fc47d94f777ab31a09ccd0c31e8afe24ec3be6fc6a875345
+size 2465168
diff --git a/ai_002_003/background_mesh/roughness_19.png b/ai_002_003/background_mesh/roughness_19.png
new file mode 100644
index 0000000000000000000000000000000000000000..aebba69bbeb4a4707790569dd01c95c9172a4289
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_19.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:295b6e6a27788b22fc47d94f777ab31a09ccd0c31e8afe24ec3be6fc6a875345
+size 2465168
diff --git a/ai_002_003/background_mesh/roughness_2.png b/ai_002_003/background_mesh/roughness_2.png
new file mode 100644
index 0000000000000000000000000000000000000000..61f7ea7768b2fc2c79dc39503961140b60ad36aa
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_2.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f02569fbe999113fb5be1d67a51d52bbd0ec97912d95c9a0216b91b053acb173
+size 551907
diff --git a/ai_002_003/background_mesh/roughness_20.png b/ai_002_003/background_mesh/roughness_20.png
new file mode 100644
index 0000000000000000000000000000000000000000..aebba69bbeb4a4707790569dd01c95c9172a4289
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_20.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:295b6e6a27788b22fc47d94f777ab31a09ccd0c31e8afe24ec3be6fc6a875345
+size 2465168
diff --git a/ai_002_003/background_mesh/roughness_21.png b/ai_002_003/background_mesh/roughness_21.png
new file mode 100644
index 0000000000000000000000000000000000000000..aebba69bbeb4a4707790569dd01c95c9172a4289
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_21.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:295b6e6a27788b22fc47d94f777ab31a09ccd0c31e8afe24ec3be6fc6a875345
+size 2465168
diff --git a/ai_002_003/background_mesh/roughness_22.png b/ai_002_003/background_mesh/roughness_22.png
new file mode 100644
index 0000000000000000000000000000000000000000..eca98f7baaa7cc65fb8b2ab164ee0c12f6c8c84a
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_22.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7a2c07d0fce138a3ba1bb5044697d95139db16536d92e5a7cf0582a52a0bd040
+size 1472411
diff --git a/ai_002_003/background_mesh/roughness_23.png b/ai_002_003/background_mesh/roughness_23.png
new file mode 100644
index 0000000000000000000000000000000000000000..56eca871264ddbe025ee7390137286123492e55e
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_23.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b10851bcee8f0c28059d50cfc6499d6089219b7aebdc2d656ab26b61ca397f03
+size 1271822
diff --git a/ai_002_003/background_mesh/roughness_24.png b/ai_002_003/background_mesh/roughness_24.png
new file mode 100644
index 0000000000000000000000000000000000000000..aebba69bbeb4a4707790569dd01c95c9172a4289
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_24.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:295b6e6a27788b22fc47d94f777ab31a09ccd0c31e8afe24ec3be6fc6a875345
+size 2465168
diff --git a/ai_002_003/background_mesh/roughness_25.png b/ai_002_003/background_mesh/roughness_25.png
new file mode 100644
index 0000000000000000000000000000000000000000..aebba69bbeb4a4707790569dd01c95c9172a4289
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_25.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:295b6e6a27788b22fc47d94f777ab31a09ccd0c31e8afe24ec3be6fc6a875345
+size 2465168
diff --git a/ai_002_003/background_mesh/roughness_26.png b/ai_002_003/background_mesh/roughness_26.png
new file mode 100644
index 0000000000000000000000000000000000000000..aebba69bbeb4a4707790569dd01c95c9172a4289
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_26.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:295b6e6a27788b22fc47d94f777ab31a09ccd0c31e8afe24ec3be6fc6a875345
+size 2465168
diff --git a/ai_002_003/background_mesh/roughness_27.png b/ai_002_003/background_mesh/roughness_27.png
new file mode 100644
index 0000000000000000000000000000000000000000..c70a0575add67f2c30fb2523690e5c99be63549a
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_27.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ef95c7fb75028e4128b4b29c7aeeaff22b0889652c032f5b7be58bdf6ac10f2f
+size 1216743
diff --git a/ai_002_003/background_mesh/roughness_28.png b/ai_002_003/background_mesh/roughness_28.png
new file mode 100644
index 0000000000000000000000000000000000000000..40943c067e2dd337a543b8e5b77c1a0ee8331786
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_28.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7138d96717e370ae4d12cfd0c7f36bae63bce0a4a094f39d8bf70fd3a750d2a1
+size 1890134
diff --git a/ai_002_003/background_mesh/roughness_29.png b/ai_002_003/background_mesh/roughness_29.png
new file mode 100644
index 0000000000000000000000000000000000000000..475e72cd613b277dc2f9741f30feb54edb80c3e2
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_29.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:31030d8e5cb5b06ee4a796e4fc213d1fff6ac19701f2bbf29f98c004c81f3d4c
+size 800976
diff --git a/ai_002_003/background_mesh/roughness_3.png b/ai_002_003/background_mesh/roughness_3.png
new file mode 100644
index 0000000000000000000000000000000000000000..86d093799d6a684b6fe267d5b434284b079b93d1
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_3.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a90314963df1829cf8291b1d88979a00bec214caced23737c8e519fce560871c
+size 1108993
diff --git a/ai_002_003/background_mesh/roughness_30.png b/ai_002_003/background_mesh/roughness_30.png
new file mode 100644
index 0000000000000000000000000000000000000000..aebba69bbeb4a4707790569dd01c95c9172a4289
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_30.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:295b6e6a27788b22fc47d94f777ab31a09ccd0c31e8afe24ec3be6fc6a875345
+size 2465168
diff --git a/ai_002_003/background_mesh/roughness_31.png b/ai_002_003/background_mesh/roughness_31.png
new file mode 100644
index 0000000000000000000000000000000000000000..a841688fe1f2c686df2037b60a938575d99fd84f
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_31.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:aa84e61db858cfcf22e98f107c2aac6d4b2d14e8c22f069381f6b16bcc4efbfd
+size 2471295
diff --git a/ai_002_003/background_mesh/roughness_32.png b/ai_002_003/background_mesh/roughness_32.png
new file mode 100644
index 0000000000000000000000000000000000000000..aebba69bbeb4a4707790569dd01c95c9172a4289
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_32.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:295b6e6a27788b22fc47d94f777ab31a09ccd0c31e8afe24ec3be6fc6a875345
+size 2465168
diff --git a/ai_002_003/background_mesh/roughness_33.png b/ai_002_003/background_mesh/roughness_33.png
new file mode 100644
index 0000000000000000000000000000000000000000..aebba69bbeb4a4707790569dd01c95c9172a4289
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_33.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:295b6e6a27788b22fc47d94f777ab31a09ccd0c31e8afe24ec3be6fc6a875345
+size 2465168
diff --git a/ai_002_003/background_mesh/roughness_34.png b/ai_002_003/background_mesh/roughness_34.png
new file mode 100644
index 0000000000000000000000000000000000000000..aebba69bbeb4a4707790569dd01c95c9172a4289
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_34.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:295b6e6a27788b22fc47d94f777ab31a09ccd0c31e8afe24ec3be6fc6a875345
+size 2465168
diff --git a/ai_002_003/background_mesh/roughness_35.png b/ai_002_003/background_mesh/roughness_35.png
new file mode 100644
index 0000000000000000000000000000000000000000..aebba69bbeb4a4707790569dd01c95c9172a4289
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_35.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:295b6e6a27788b22fc47d94f777ab31a09ccd0c31e8afe24ec3be6fc6a875345
+size 2465168
diff --git a/ai_002_003/background_mesh/roughness_36.png b/ai_002_003/background_mesh/roughness_36.png
new file mode 100644
index 0000000000000000000000000000000000000000..aebba69bbeb4a4707790569dd01c95c9172a4289
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_36.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:295b6e6a27788b22fc47d94f777ab31a09ccd0c31e8afe24ec3be6fc6a875345
+size 2465168
diff --git a/ai_002_003/background_mesh/roughness_37.png b/ai_002_003/background_mesh/roughness_37.png
new file mode 100644
index 0000000000000000000000000000000000000000..aebba69bbeb4a4707790569dd01c95c9172a4289
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_37.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:295b6e6a27788b22fc47d94f777ab31a09ccd0c31e8afe24ec3be6fc6a875345
+size 2465168
diff --git a/ai_002_003/background_mesh/roughness_38.png b/ai_002_003/background_mesh/roughness_38.png
new file mode 100644
index 0000000000000000000000000000000000000000..1f6c1786262200f05509959b09e3f0cbdc82becd
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_38.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6f24e8c09679781ec3a25b6a929026d6a64af2fd08937cc4378f61ee7f3fa576
+size 910250
diff --git a/ai_002_003/background_mesh/roughness_39.png b/ai_002_003/background_mesh/roughness_39.png
new file mode 100644
index 0000000000000000000000000000000000000000..aebba69bbeb4a4707790569dd01c95c9172a4289
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_39.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:295b6e6a27788b22fc47d94f777ab31a09ccd0c31e8afe24ec3be6fc6a875345
+size 2465168
diff --git a/ai_002_003/background_mesh/roughness_4.png b/ai_002_003/background_mesh/roughness_4.png
new file mode 100644
index 0000000000000000000000000000000000000000..301cf52e1bbddbf16a9f55d2c71d9db7fee3d0b2
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_4.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fa9c097ae486f31a94a034193c1c926ba7b5ab8432772d7c6e15f5bf3dc4357a
+size 1238452
diff --git a/ai_002_003/background_mesh/roughness_40.png b/ai_002_003/background_mesh/roughness_40.png
new file mode 100644
index 0000000000000000000000000000000000000000..aebba69bbeb4a4707790569dd01c95c9172a4289
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_40.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:295b6e6a27788b22fc47d94f777ab31a09ccd0c31e8afe24ec3be6fc6a875345
+size 2465168
diff --git a/ai_002_003/background_mesh/roughness_41.png b/ai_002_003/background_mesh/roughness_41.png
new file mode 100644
index 0000000000000000000000000000000000000000..aebba69bbeb4a4707790569dd01c95c9172a4289
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_41.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:295b6e6a27788b22fc47d94f777ab31a09ccd0c31e8afe24ec3be6fc6a875345
+size 2465168
diff --git a/ai_002_003/background_mesh/roughness_42.png b/ai_002_003/background_mesh/roughness_42.png
new file mode 100644
index 0000000000000000000000000000000000000000..aebba69bbeb4a4707790569dd01c95c9172a4289
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_42.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:295b6e6a27788b22fc47d94f777ab31a09ccd0c31e8afe24ec3be6fc6a875345
+size 2465168
diff --git a/ai_002_003/background_mesh/roughness_5.png b/ai_002_003/background_mesh/roughness_5.png
new file mode 100644
index 0000000000000000000000000000000000000000..c6173ca2f8ea210841faddab34d0e2a89f85ce48
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_5.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:612abff953b9eb8d1791f064a73d942070d2a5ff57af39ea868a77f3ae309741
+size 848744
diff --git a/ai_002_003/background_mesh/roughness_6.png b/ai_002_003/background_mesh/roughness_6.png
new file mode 100644
index 0000000000000000000000000000000000000000..a20af2351ddf2b205f0ab8c86513333c3e8a9ebc
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_6.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:525ba4d32ab7eb251adebdd1d0c00e8212296991a9c015a3cf1b24bf2f3b7a56
+size 1542019
diff --git a/ai_002_003/background_mesh/roughness_7.png b/ai_002_003/background_mesh/roughness_7.png
new file mode 100644
index 0000000000000000000000000000000000000000..aebba69bbeb4a4707790569dd01c95c9172a4289
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_7.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:295b6e6a27788b22fc47d94f777ab31a09ccd0c31e8afe24ec3be6fc6a875345
+size 2465168
diff --git a/ai_002_003/background_mesh/roughness_8.png b/ai_002_003/background_mesh/roughness_8.png
new file mode 100644
index 0000000000000000000000000000000000000000..ca54ef3cd124bbb98161e81dad2d47f4ffb59c26
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_8.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:53fa3f0c89bf9fe3b61ca73b7fe985db866fbf94161c9a2612bff6f7e693775f
+size 1352612
diff --git a/ai_002_003/background_mesh/roughness_9.png b/ai_002_003/background_mesh/roughness_9.png
new file mode 100644
index 0000000000000000000000000000000000000000..8b4f3192699d46a900e72ea8ae5d47bd503975b0
--- /dev/null
+++ b/ai_002_003/background_mesh/roughness_9.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cbfc8dfe1158855ad70d681bc9a6402f9ec951184070457d2845fe4272fb6ba4
+size 1518635