diff --git a/ai_001_010/background_mesh/1.obj b/ai_001_010/background_mesh/1.obj
new file mode 100644
index 0000000000000000000000000000000000000000..6cdbcb326956545c78ed7fbf17369b17bf8c1d47
--- /dev/null
+++ b/ai_001_010/background_mesh/1.obj
@@ -0,0 +1,162 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
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diff --git a/ai_001_010/background_mesh/10.obj b/ai_001_010/background_mesh/10.obj
new file mode 100644
index 0000000000000000000000000000000000000000..9079abc3ce195c7646d90b8c1ab1d54456bd074b
--- /dev/null
+++ b/ai_001_010/background_mesh/10.obj
@@ -0,0 +1,25 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 0.14976127 -2.31087804 -1.57471800
+v 0.14942046 -2.19594526 -1.57474089
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+f 1/1 3/3 2/2
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+f 3/3 8/8 6/6
+
diff --git a/ai_001_010/background_mesh/11.obj b/ai_001_010/background_mesh/11.obj
new file mode 100644
index 0000000000000000000000000000000000000000..5a4be4a8158c365e52992728cef042702635ca8c
--- /dev/null
+++ b/ai_001_010/background_mesh/11.obj
@@ -0,0 +1,76 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
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diff --git a/ai_001_010/background_mesh/12.obj b/ai_001_010/background_mesh/12.obj
new file mode 100644
index 0000000000000000000000000000000000000000..55398eb4d2562dc48cae255c2fad890c8bd7ba1d
--- /dev/null
+++ b/ai_001_010/background_mesh/12.obj
@@ -0,0 +1,129 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
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diff --git a/ai_001_010/background_mesh/13.obj b/ai_001_010/background_mesh/13.obj
new file mode 100644
index 0000000000000000000000000000000000000000..fca5f4f772bd07b8311a7706203534dd9e7d628f
--- /dev/null
+++ b/ai_001_010/background_mesh/13.obj
@@ -0,0 +1,107 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
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+vt 0.42944145 0.00585911
+vt 0.43637839 0.00005097
+vt 0.48881933 0.00005730
+vt 0.50148094 0.00584249
+vt 0.50164843 0.04210207
+vt 0.49285051 0.04832352
+vt 0.43637642 0.04831711
+vt 0.42944473 0.04210333
+vt 0.42024097 0.04831528
+vt 0.26695418 0.04829788
+vt 0.25939241 0.04210353
+vt 0.25081876 0.04829603
+f 4/4 2/2 3/3
+f 2/2 4/4 1/1
+f 5/5 6/6 7/7
+f 10/10 8/8 9/9
+f 8/8 10/10 5/5
+f 8/8 5/5 7/7
+f 11/11 12/12 13/13
+f 19/19 14/14 15/15
+f 18/18 16/16 17/17
+f 15/15 18/18 19/19
+f 14/14 11/11 13/13
+f 16/16 18/18 15/15
+f 11/11 14/14 19/19
+f 20/20 37/37 36/36
+f 25/25 35/35 34/34
+f 33/33 32/32 31/31
+f 28/28 30/30 29/29
+f 26/26 28/28 27/27
+f 23/23 21/21 24/24
+f 21/21 23/23 22/22
+f 24/24 21/21 20/20
+f 25/25 34/34 33/33
+f 30/30 33/33 31/31
+f 33/33 28/28 26/26
+f 36/36 24/24 20/20
+f 24/24 36/36 25/25
+f 30/30 28/28 33/33
+f 35/35 25/25 36/36
+f 25/25 33/33 26/26
+
diff --git a/ai_001_010/background_mesh/14.obj b/ai_001_010/background_mesh/14.obj
new file mode 100644
index 0000000000000000000000000000000000000000..5ab7ecb9b8c375a02ff8d850ad9892da4789f869
--- /dev/null
+++ b/ai_001_010/background_mesh/14.obj
@@ -0,0 +1,77 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 2.71666694 2.70414495 0.00055560
+v 2.68501353 2.70414424 -0.04054166
+v 2.68926382 2.70413947 -1.11719179
+v 2.71666861 2.70413971 -1.15281105
+v 2.68954349 2.70413923 -1.18802392
+v 2.69384980 2.70413446 -2.27884078
+v 2.71666622 2.70413446 -2.31367064
+v 2.69412947 2.70413399 -2.34967208
+v 2.71666622 2.70413399 -2.47376132
+v 2.69547153 2.70413256 -2.68966699
+v 2.71666622 2.70413256 -2.72335005
+v 0.99950814 2.70408797 -2.73208308
+v 1.00250041 2.70410037 0.00013498
+v -0.24416694 2.70405555 -2.72335792
+v 0.13548569 2.70406580 -2.73208308
+v 0.40279979 2.70407248 -2.70374870
+v 0.40750030 2.70408487 -0.00001102
+v -3.00666642 2.70399618 -0.00084877
+v -2.99992657 2.70398426 -2.73212671
+v -1.59924948 2.70402312 -2.17958260
+v -1.59924269 2.70402169 -2.49125004
+v -0.60028148 2.70404768 -2.49124980
+v -0.60027450 2.70405364 -1.17374992
+v -0.62666905 2.70405293 -1.15315819
+v -1.59927166 2.70402765 -1.17374980
+vt 0.00000000 0.99999964
+vt 0.01503917 0.99446911
+vt 0.40902942 0.99521172
+vt 0.42206395 1.00000000
+vt 0.43494979 0.99526060
+vt 0.83412427 0.99601299
+vt 0.84686983 0.99999952
+vt 0.86004430 0.99606186
+vt 0.90545362 0.99999952
+vt 0.98446232 0.99629635
+vt 0.99678826 0.99999952
+vt 0.99998415 0.69997203
+vt 0.00015395 0.70049483
+vt 0.99679124 0.48267299
+vt 0.99998415 0.54900718
+vt 0.98961532 0.59571320
+vt 0.00020734 0.59653443
+vt 0.00051393 0.00000000
+vt 1.00000000 0.00117761
+vt 0.79780155 0.24590850
+vt 0.91185337 0.24590972
+vt 0.91185337 0.42045152
+vt 0.42972636 0.42045271
+vt 0.42219099 0.41584095
+vt 0.42972630 0.24590462
+f 3/3 4/4 5/5
+f 6/6 7/7 8/8
+f 8/8 9/9 10/10
+f 10/10 11/11 12/12
+f 13/13 1/1 2/2
+f 13/13 3/3 5/5
+f 12/12 8/8 10/10
+f 5/5 12/12 13/13
+f 3/3 13/13 2/2
+f 8/8 12/12 6/6
+f 6/6 12/12 5/5
+f 17/17 25/25 18/18
+f 19/19 20/20 21/21
+f 25/25 17/17 24/24
+f 23/23 16/16 15/15
+f 19/19 18/18 25/25
+f 23/23 24/24 17/17
+f 22/22 15/15 14/14
+f 20/20 19/19 25/25
+f 16/16 23/23 17/17
+f 14/14 19/19 21/21
+f 23/23 15/15 22/22
+f 14/14 21/21 22/22
+
diff --git a/ai_001_010/background_mesh/15.obj b/ai_001_010/background_mesh/15.obj
new file mode 100644
index 0000000000000000000000000000000000000000..29450e956ad80f1713c6ead6d1311ac7ae268192
--- /dev/null
+++ b/ai_001_010/background_mesh/15.obj
@@ -0,0 +1,20 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -1.59930837 3.00002837 -1.28695428
+v -1.59928477 3.01782632 -2.47377253
+v -1.59924269 2.70402169 -2.49217463
+v -1.59926987 2.68780589 -1.15333295
+v -1.59930801 2.97475743 -1.15202832
+v -1.59931087 3.00003386 -1.17217219
+vt 0.10068002 0.94607019
+vt 0.98626858 1.00000000
+vt 1.00000000 0.04913575
+vt 0.00097350 0.00000000
+vt 0.00000000 0.86949629
+vt 0.01503109 0.94608676
+f 1/1 2/2 3/3
+f 1/1 4/4 5/5
+f 5/5 6/6 1/1
+f 4/4 1/1 3/3
+
diff --git a/ai_001_010/background_mesh/16.obj b/ai_001_010/background_mesh/16.obj
new file mode 100644
index 0000000000000000000000000000000000000000..0daacc0a315255918ece5c399b23564e4367bff2
--- /dev/null
+++ b/ai_001_010/background_mesh/16.obj
@@ -0,0 +1,17 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 1.90996885 -2.19672632 -2.48222494
+v 1.90991974 -2.19603872 -1.15333259
+v 1.90988088 -2.42878437 -1.17623186
+v 1.90987456 -2.45997572 -1.15333116
+v 1.90992141 -2.47222114 -2.47376657
+vt 0.00000000 0.99751043
+vt 0.99999893 1.00000000
+vt 0.98276711 0.15727565
+vt 1.00000000 0.04433815
+vt 0.00636498 0.00000000
+f 1/1 2/2 3/3
+f 3/3 4/4 5/5
+f 5/5 1/1 3/3
+
diff --git a/ai_001_010/background_mesh/17.obj b/ai_001_010/background_mesh/17.obj
new file mode 100644
index 0000000000000000000000000000000000000000..7a536e143a4e2c3ef3b3be0efcde7ce7ebf24c4e
--- /dev/null
+++ b/ai_001_010/background_mesh/17.obj
@@ -0,0 +1,95 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 2.69560409 2.69456863 -2.72334981
+v 2.68485069 2.69456911 0.00054640
+v 2.68476462 1.06540644 0.00031011
+v 2.68732905 1.05124569 -0.64963347
+v 2.68805695 1.06541228 -0.83379757
+v 2.68805933 1.10791206 -0.83379757
+v 2.68822789 1.12207866 -0.87629700
+v 2.68845081 1.10791206 -0.93296289
+v 2.68817043 1.09374547 -0.86213046
+v 2.68799949 1.03707922 -0.81963110
+v 2.68476319 1.03707945 0.00030600
+v 2.68459320 -2.17873383 -0.00016042
+v 2.68956137 -2.18919826 -1.25874412
+v 2.68903327 -1.59790444 -1.11712754
+v 2.68925238 -1.58355153 -1.17230809
+v 2.68987298 -1.58373761 -1.32962453
+v 2.69076252 -1.68290377 -1.55628800
+v 2.69534373 -2.17873383 -2.72335291
+v 2.68695045 -0.80457592 -0.57880151
+v 2.68650079 -0.84707570 -0.46546984
+v 2.68694830 -0.84707570 -0.57880151
+v 2.68672299 -0.87540901 -0.52213573
+v 2.68672132 -0.90374219 -0.52213573
+v 2.68649769 -0.90374207 -0.46546978
+v 2.68683314 -0.90374207 -0.55046862
+v 2.68694520 -0.90374207 -0.57880151
+v 2.68677592 -0.93207526 -0.53630221
+v 2.68683028 -0.96040845 -0.55046862
+v 2.68655157 -0.94624162 -0.47963628
+vt 0.00000074 0.99999988
+vt 1.00000000 1.00000000
+vt 0.99991333 0.66651505
+vt 0.76130551 0.66361642
+vt 0.69369501 0.66651624
+vt 0.69369501 0.67521584
+vt 0.67809254 0.67811573
+vt 0.65728933 0.67521584
+vt 0.68329340 0.67231601
+vt 0.69889581 0.66071659
+vt 0.99991184 0.66071659
+vt 0.99974084 0.00244887
+vt 0.53768849 0.00030683
+vt 0.58967882 0.12134297
+vt 0.56942093 0.12428097
+vt 0.51166677 0.12424289
+vt 0.42845389 0.10394385
+vt 0.00000000 0.00244887
+vt 0.78730959 0.28373504
+vt 0.82891595 0.27503547
+vt 0.78730959 0.27503547
+vt 0.80811274 0.26923573
+vt 0.80811274 0.26343599
+vt 0.82891595 0.26343602
+vt 0.79771107 0.26343602
+vt 0.78730959 0.26343602
+vt 0.80291194 0.25763631
+vt 0.79771107 0.25183657
+vt 0.82371515 0.25473648
+f 4/4 2/2 3/3
+f 6/6 4/4 5/5
+f 8/8 9/9 10/10
+f 26/26 27/27 28/28
+f 29/29 25/25 23/23
+f 22/22 23/23 25/25
+f 25/25 26/26 21/21
+f 15/15 26/26 14/14
+f 20/20 11/11 12/12
+f 2/2 4/4 6/6
+f 19/19 8/8 10/10
+f 29/29 23/23 24/24
+f 22/22 25/25 21/21
+f 16/16 26/26 15/15
+f 13/13 14/14 12/12
+f 8/8 18/18 1/1
+f 7/7 2/2 6/6
+f 20/20 22/22 21/21
+f 11/11 19/19 10/10
+f 18/18 8/8 17/17
+f 8/8 2/2 7/7
+f 22/22 20/20 24/24
+f 19/19 11/11 20/20
+f 2/2 8/8 1/1
+f 24/24 20/20 12/12
+f 17/17 8/8 16/16
+f 26/26 16/16 21/21
+f 29/29 24/24 12/12
+f 19/19 16/16 8/8
+f 14/14 28/28 12/12
+f 28/28 29/29 12/12
+f 21/21 16/16 19/19
+f 28/28 14/14 26/26
+
diff --git a/ai_001_010/background_mesh/18.obj b/ai_001_010/background_mesh/18.obj
new file mode 100644
index 0000000000000000000000000000000000000000..f0672bf9fe774099d42639192704277ad2c8b5e9
--- /dev/null
+++ b/ai_001_010/background_mesh/18.obj
@@ -0,0 +1,41 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 0.99949151 2.99990654 -2.20291615
+v 0.99946284 3.00791574 0.00017830
+v 0.99947274 2.70410037 0.00708389
+v 0.99947357 2.68208027 0.00013104
+v 0.99947333 2.70410013 -0.03541625
+v 0.99948722 2.70409536 -1.11208332
+v 0.99948889 2.66778159 -1.15315461
+v 0.99948829 2.70409489 -1.19708335
+v 0.99950260 2.70408988 -2.30208373
+v 0.99950343 2.68208337 -2.31367540
+v 0.99950296 2.70408988 -2.33041716
+v 0.99950790 2.70408821 -2.71291709
+v 0.99949813 2.99988222 -2.71291733
+vt 0.18750036 0.97645283
+vt 0.99746120 1.00000000
+vt 1.00000000 0.10677781
+vt 0.99744385 0.04203835
+vt 0.98437500 0.10677711
+vt 0.58854163 0.10676309
+vt 0.57344192 0.00000000
+vt 0.55729163 0.10676169
+vt 0.15104170 0.10674697
+vt 0.14678006 0.04204746
+vt 0.14062500 0.10674697
+vt 0.00000009 0.10674206
+vt 0.00000000 0.97638136
+f 5/5 2/2 3/3
+f 3/3 4/4 5/5
+f 6/6 7/7 8/8
+f 9/9 10/10 11/11
+f 11/11 12/12 13/13
+f 6/6 2/2 5/5
+f 2/2 6/6 1/1
+f 11/11 1/1 9/9
+f 1/1 11/11 13/13
+f 8/8 1/1 6/6
+f 9/9 1/1 8/8
+
diff --git a/ai_001_010/background_mesh/19.obj b/ai_001_010/background_mesh/19.obj
new file mode 100644
index 0000000000000000000000000000000000000000..8ace6d53a4318853c303917dfe9a9696f800c445
--- /dev/null
+++ b/ai_001_010/background_mesh/19.obj
@@ -0,0 +1,44 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 2.99000001 2.99982166 -2.72334886
+v 2.99000072 2.99995160 0.00066557
+v 0.99250054 3.00001168 0.00017544
+v 0.99250001 2.99988174 -2.72335434
+v -2.84666681 3.00012755 -0.00076657
+v 0.39750049 3.00002980 0.00002945
+v 0.40278444 2.99989986 -2.71791577
+v -3.31416726 3.00001168 -2.72336578
+v -3.31417751 3.00014162 -0.00088128
+v -1.43000031 2.99996686 -2.47377205
+v -0.60027647 2.99994230 -2.46291637
+v -0.60833436 3.00000501 -1.15181077
+v -1.61416781 3.00003529 -1.15191483
+v -1.61416698 2.99997234 -2.47377253
+vt 0.00000621 0.99999982
+vt 1.00000000 1.00000000
+vt 0.99982005 0.68314660
+vt 0.00000420 0.68314654
+vt 0.99947423 0.07415886
+vt 0.99976647 0.58876479
+vt 0.00200071 0.58960289
+vt 0.00000000 0.00000159
+vt 0.99943215 0.00000000
+vt 0.09162660 0.29887751
+vt 0.09561175 0.43049243
+vt 0.57692248 0.42921424
+vt 0.57688427 0.26966396
+vt 0.09162642 0.26966408
+f 1/1 2/2 3/3
+f 3/3 4/4 1/1
+f 5/5 9/9 8/8
+f 10/10 8/8 7/7
+f 8/8 10/10 14/14
+f 13/13 8/8 14/14
+f 11/11 10/10 7/7
+f 8/8 13/13 5/5
+f 12/12 11/11 7/7
+f 6/6 5/5 13/13
+f 12/12 7/7 6/6
+f 6/6 13/13 12/12
+
diff --git a/ai_001_010/background_mesh/2.obj b/ai_001_010/background_mesh/2.obj
new file mode 100644
index 0000000000000000000000000000000000000000..88cb491424b511eef96ebd4100177f2921571248
--- /dev/null
+++ b/ai_001_010/background_mesh/2.obj
@@ -0,0 +1,64 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -2.99798727 2.71791744 -0.00084463
+v -2.99873161 2.70398402 -2.73208427
+v -2.99786019 -2.19598722 -2.73208594
+v -2.99755812 -2.19541550 -1.62708521
+v -2.99767017 -1.58875060 -1.64125049
+v -2.99765968 -1.60291719 -1.61291707
+v -2.99761677 -1.80125034 -1.58458364
+v -2.99759674 -1.91458356 -1.58458364
+v -2.99760938 -1.88625038 -1.61291707
+v -2.99754643 -2.19539356 -1.58458519
+v -2.99711275 -2.19457269 0.00208151
+v -2.99801254 0.05458294 -1.82541692
+v -2.99797773 0.05458295 -1.69791687
+v -2.99781656 -0.85208368 -1.69791698
+v -2.99782419 -0.85208368 -1.72625029
+v -2.99797916 0.04041630 -1.71208358
+v -2.99805045 -0.48375046 -2.31368804
+v -2.99792314 -0.46958378 -1.83958364
+v -2.99792075 -0.44125035 -1.81125021
+v -2.99805784 -0.44125047 -2.31368804
+vt 0.00107029 1.00000000
+vt 0.99999946 0.99716455
+vt 1.00000000 0.00000000
+vt 0.59585476 0.00011635
+vt 0.60103565 0.12357517
+vt 0.59067297 0.12069222
+vt 0.58031023 0.08033062
+vt 0.58031017 0.05726684
+vt 0.59067291 0.06303276
+vt 0.58031076 0.00012081
+vt 0.00000000 0.00028786
+vt 0.66839308 0.45800039
+vt 0.62176096 0.45800039
+vt 0.62176096 0.27348995
+vt 0.63212365 0.27348995
+vt 0.62694234 0.45511740
+vt 0.84697437 0.34844732
+vt 0.67357445 0.35133028
+vt 0.66321170 0.35709625
+vt 0.84697437 0.35709623
+f 3/3 4/4 5/5
+f 6/6 14/14 5/5
+f 16/16 19/19 15/15
+f 11/11 14/14 6/6
+f 8/8 9/9 10/10
+f 13/13 11/11 1/1
+f 15/15 5/5 14/14
+f 19/19 18/18 15/15
+f 11/11 6/6 7/7
+f 11/11 8/8 10/10
+f 17/17 5/5 15/15
+f 15/15 18/18 17/17
+f 11/11 7/7 8/8
+f 5/5 17/17 3/3
+f 11/11 13/13 14/14
+f 20/20 3/3 17/17
+f 2/2 13/13 1/1
+f 3/3 20/20 2/2
+f 13/13 2/2 12/12
+f 2/2 20/20 12/12
+
diff --git a/ai_001_010/background_mesh/20.obj b/ai_001_010/background_mesh/20.obj
new file mode 100644
index 0000000000000000000000000000000000000000..307849574b041aea522dd7a93b611233fd853a9f
--- /dev/null
+++ b/ai_001_010/background_mesh/20.obj
@@ -0,0 +1,20 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -0.60027331 2.99997091 -1.86285651
+v -0.60026962 3.00000429 -1.16285670
+v -0.60027397 2.72638392 -1.15305400
+v -0.60027444 2.70405364 -1.16285658
+v -0.60028148 2.69785714 -2.47377014
+v -0.60027659 2.99994159 -2.47714329
+vt 0.46393153 0.99988955
+vt 0.99259663 1.00000000
+vt 1.00000000 0.09441354
+vt 0.99259675 0.02050821
+vt 0.00254752 0.00000000
+vt 0.00000000 0.99979246
+f 4/4 2/2 3/3
+f 1/1 4/4 5/5
+f 5/5 6/6 1/1
+f 2/2 4/4 1/1
+
diff --git a/ai_001_010/background_mesh/21.obj b/ai_001_010/background_mesh/21.obj
new file mode 100644
index 0000000000000000000000000000000000000000..b774214028d3a78ed70f819c03f9d0e3083debf0
--- /dev/null
+++ b/ai_001_010/background_mesh/21.obj
@@ -0,0 +1,50 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 0.40246141 3.00002599 -0.06874776
+v 0.40278405 3.01791692 -2.72335577
+v 0.40280324 2.70407224 -2.73208380
+v 0.40280366 2.67791677 -2.72335601
+v 0.40279979 2.70407248 -2.70375061
+v 0.40277559 2.70407319 -2.50541687
+v 0.40277326 2.67791677 -2.47376728
+v 0.40275657 2.70407391 -2.34958363
+v 0.40275374 2.67791677 -2.31367683
+v 0.40274796 2.70407438 -2.27875042
+v 0.40261495 2.70407915 -1.18791664
+v 0.40261224 2.67782307 -1.15317070
+v 0.40260631 2.70407963 -1.11708319
+v 0.40247330 2.70408463 -0.02624941
+v 0.40247163 2.67791510 -0.00001605
+v 0.40245444 2.97541523 0.00002709
+vt 0.02517278 0.94739413
+vt 0.99680537 1.00000000
+vt 1.00000000 0.07718214
+vt 0.99680537 0.00027551
+vt 0.98962957 0.07718284
+vt 0.91703600 0.07718494
+vt 0.90545166 0.00027551
+vt 0.85999829 0.07718705
+vt 0.84685582 0.00027551
+vt 0.83407211 0.07718845
+vt 0.43480799 0.07720247
+vt 0.42209038 0.00000000
+vt 0.40888172 0.07720387
+vt 0.00961764 0.07721859
+vt 0.00001580 0.00027060
+vt 0.00000000 0.87502950
+f 5/5 2/2 3/3
+f 3/3 4/4 5/5
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+f 6/6 2/2 5/5
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diff --git a/ai_001_010/background_mesh/22.obj b/ai_001_010/background_mesh/22.obj
new file mode 100644
index 0000000000000000000000000000000000000000..1b195d065aff20f85d4b437c0e980ad2ba98b17f
--- /dev/null
+++ b/ai_001_010/background_mesh/22.obj
@@ -0,0 +1,14 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -0.30269352 -1.91250002 -1.54500008
+v -0.30269387 -1.91250002 -1.57499993
+v -0.30269292 -1.94249988 -1.57499993
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+vt 0.00000000 0.00000000
+f 1/1 2/2 3/3
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+
diff --git a/ai_001_010/background_mesh/3.obj b/ai_001_010/background_mesh/3.obj
new file mode 100644
index 0000000000000000000000000000000000000000..f9b82a658ca716bb87cddedb8d4e064939e905d0
--- /dev/null
+++ b/ai_001_010/background_mesh/3.obj
@@ -0,0 +1,14 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v -2.58138132 1.98376751 -2.31368494
+v -2.58137965 1.98376751 -2.72336459
+v -2.58071733 -1.08792305 -2.72336650
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+
diff --git a/ai_001_010/background_mesh/4.obj b/ai_001_010/background_mesh/4.obj
new file mode 100644
index 0000000000000000000000000000000000000000..fc39a15582d0dac4082963d3f6fa267859cffff0
--- /dev/null
+++ b/ai_001_010/background_mesh/4.obj
@@ -0,0 +1,58 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
+v 2.33207512 -2.19632268 -1.55787134
+v 2.33207512 -2.19602251 -0.97776496
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diff --git a/ai_001_010/background_mesh/5.obj b/ai_001_010/background_mesh/5.obj
new file mode 100644
index 0000000000000000000000000000000000000000..46777157c66824e4ce0d527df511c09233134474
--- /dev/null
+++ b/ai_001_010/background_mesh/5.obj
@@ -0,0 +1,294 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
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diff --git a/ai_001_010/background_mesh/6.obj b/ai_001_010/background_mesh/6.obj
new file mode 100644
index 0000000000000000000000000000000000000000..206b18eeb808eea4d502678d34abeb3aa12696f3
--- /dev/null
+++ b/ai_001_010/background_mesh/6.obj
@@ -0,0 +1,414 @@
+# https://github.com/mikedh/trimesh
+mtllib material.mtl
+usemtl material_0
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new file mode 100644
index 0000000000000000000000000000000000000000..a204ef0bb9ead3655febfca8a0edcc3818ad5b16
--- /dev/null
+++ b/ai_001_010/background_mesh/7.obj
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+# https://github.com/mikedh/trimesh
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diff --git a/ai_001_010/background_mesh/8.obj b/ai_001_010/background_mesh/8.obj
new file mode 100644
index 0000000000000000000000000000000000000000..38979b5fb15de2897244e2244dc40c5e77838527
--- /dev/null
+++ b/ai_001_010/background_mesh/8.obj
@@ -0,0 +1,14 @@
+# https://github.com/mikedh/trimesh
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diff --git a/ai_001_010/background_mesh/9.obj b/ai_001_010/background_mesh/9.obj
new file mode 100644
index 0000000000000000000000000000000000000000..89cf5ffd6485c3e11b8b480a148833ac5c53c78a
--- /dev/null
+++ b/ai_001_010/background_mesh/9.obj
@@ -0,0 +1,47 @@
+# https://github.com/mikedh/trimesh
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