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Update app.py

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1
  """
2
- RigNet Gradio Demo
3
- Automatic rigging for 3D character models
4
- Based on: https://github.com/zhan-xu/RigNet
5
  """
6
 
7
- import os
8
- import sys
9
  import gradio as gr
10
- import torch
11
- import numpy as np
12
- import open3d as o3d
13
- import trimesh
14
- from pathlib import Path
15
- import tempfile
16
- import shutil
17
- from torch_geometric.data import Data
18
- from torch_geometric.utils import add_self_loops
19
 
20
- # Import RigNet modules (assuming they're in the same directory structure)
21
- from utils import binvox_rw
22
- from utils.rig_parser import Info
23
- from utils.io_utils import assemble_skel_skin
24
- from utils.cluster_utils import meanshift_cluster, nms_meanshift
25
- from utils.mst_utils import inside_check, flip, increase_cost_for_outside_bone, primMST_symmetry, loadSkel_recur
26
- from geometric_proc.common_ops import get_bones, calc_surface_geodesic
27
- from gen_dataset import get_tpl_edges, get_geo_edges
28
- from mst_generate import sample_on_bone, getInitId
29
- from run_skinning import post_filter
30
- from models.GCN import JOINTNET_MASKNET_MEANSHIFT as JOINTNET
31
- from models.ROOT_GCN import ROOTNET
32
- from models.PairCls_GCN import PairCls as BONENET
33
- from models.SKINNING import SKINNET
34
- import itertools as it
35
- from geometric_proc.compute_volumetric_geodesic import pts2line, calc_pts2bone_visible_mat
36
-
37
- # Global variables
38
- device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu")
39
- models_loaded = False
40
- jointNet, rootNet, boneNet, skinNet = None, None, None, None
41
-
42
- def load_models():
43
- """Load all pre-trained RigNet models"""
44
- global jointNet, rootNet, boneNet, skinNet, models_loaded
45
-
46
- if models_loaded:
47
- return
48
-
49
- print("Loading RigNet models...")
50
-
51
- # Joint prediction network
52
- jointNet = JOINTNET()
53
- jointNet.to(device)
54
- jointNet.eval()
55
- jointNet_checkpoint = torch.load('checkpoints/gcn_meanshift/model_best.pth.tar',
56
- map_location=device)
57
- jointNet.load_state_dict(jointNet_checkpoint['state_dict'])
58
- print("✓ Joint prediction network loaded")
59
-
60
- # Root prediction network
61
- rootNet = ROOTNET()
62
- rootNet.to(device)
63
- rootNet.eval()
64
- rootNet_checkpoint = torch.load('checkpoints/rootnet/model_best.pth.tar',
65
- map_location=device)
66
- rootNet.load_state_dict(rootNet_checkpoint['state_dict'])
67
- print("✓ Root prediction network loaded")
68
-
69
- # Bone connection network
70
- boneNet = BONENET()
71
- boneNet.to(device)
72
- boneNet.eval()
73
- boneNet_checkpoint = torch.load('checkpoints/bonenet/model_best.pth.tar',
74
- map_location=device)
75
- boneNet.load_state_dict(boneNet_checkpoint['state_dict'])
76
- print("✓ Connection prediction network loaded")
77
-
78
- # Skinning prediction network
79
- skinNet = SKINNET(nearest_bone=5, use_Dg=True, use_Lf=True)
80
- skinNet_checkpoint = torch.load('checkpoints/skinnet/model_best.pth.tar',
81
- map_location=device)
82
- skinNet.load_state_dict(skinNet_checkpoint['state_dict'])
83
- skinNet.to(device)
84
- skinNet.eval()
85
- print("✓ Skinning prediction network loaded")
86
-
87
- models_loaded = True
88
- print("All models loaded successfully!")
89
-
90
- def normalize_obj(mesh_v):
91
- """Normalize mesh vertices to unit scale"""
92
- dims = [max(mesh_v[:, 0]) - min(mesh_v[:, 0]),
93
- max(mesh_v[:, 1]) - min(mesh_v[:, 1]),
94
- max(mesh_v[:, 2]) - min(mesh_v[:, 2])]
95
- scale = 1.0 / max(dims)
96
- pivot = np.array([(min(mesh_v[:, 0]) + max(mesh_v[:, 0])) / 2,
97
- min(mesh_v[:, 1]),
98
- (min(mesh_v[:, 2]) + max(mesh_v[:, 2])) / 2])
99
- mesh_v[:, 0] -= pivot[0]
100
- mesh_v[:, 1] -= pivot[1]
101
- mesh_v[:, 2] -= pivot[2]
102
- mesh_v *= scale
103
- return mesh_v, pivot, scale
104
-
105
- def create_single_data(mesh_filename):
106
- """Create input data for the network"""
107
- mesh = o3d.io.read_triangle_mesh(mesh_filename)
108
- mesh.compute_vertex_normals()
109
- mesh_v = np.asarray(mesh.vertices)
110
- mesh_vn = np.asarray(mesh.vertex_normals)
111
- mesh_f = np.asarray(mesh.triangles)
112
-
113
- mesh_v, translation_normalize, scale_normalize = normalize_obj(mesh_v)
114
-
115
- # Save normalized mesh
116
- mesh_normalized = o3d.geometry.TriangleMesh(
117
- vertices=o3d.utility.Vector3dVector(mesh_v),
118
- triangles=o3d.utility.Vector3iVector(mesh_f))
119
- normalized_path = mesh_filename.replace("_remesh.obj", "_normalized.obj")
120
- o3d.io.write_triangle_mesh(normalized_path, mesh_normalized)
121
-
122
- # Vertices
123
- v = np.concatenate((mesh_v, mesh_vn), axis=1)
124
- v = torch.from_numpy(v).float()
125
-
126
- # Topology edges
127
- print(" Gathering topological edges...")
128
- tpl_e = get_tpl_edges(mesh_v, mesh_f).T
129
- tpl_e = torch.from_numpy(tpl_e).long()
130
- tpl_e, _ = add_self_loops(tpl_e, num_nodes=v.size(0))
131
-
132
- # Surface geodesic distance matrix
133
- print(" Calculating surface geodesic matrix...")
134
- surface_geodesic = calc_surface_geodesic(mesh)
135
-
136
- # Geodesic edges
137
- print(" Gathering geodesic edges...")
138
- geo_e = get_geo_edges(surface_geodesic, mesh_v).T
139
- geo_e = torch.from_numpy(geo_e).long()
140
- geo_e, _ = add_self_loops(geo_e, num_nodes=v.size(0))
141
-
142
- # Batch
143
- batch = torch.zeros(len(v), dtype=torch.long)
144
-
145
- # Voxelization
146
- vox_path = mesh_filename.replace('_remesh.obj', '_normalized.binvox')
147
- if not os.path.exists(vox_path):
148
- # Use binvox command
149
- if sys.platform == "linux" or sys.platform == "linux2":
150
- os.system(f"./binvox -d 88 -pb {normalized_path}")
151
- elif sys.platform == "win32":
152
- os.system(f"binvox.exe -d 88 {normalized_path}")
153
-
154
- with open(vox_path, 'rb') as fvox:
155
- vox = binvox_rw.read_as_3d_array(fvox)
156
-
157
- data = Data(x=v[:, 3:6], pos=v[:, 0:3], tpl_edge_index=tpl_e,
158
- geo_edge_index=geo_e, batch=batch)
159
 
160
- return data, vox, surface_geodesic, translation_normalize, scale_normalize
161
-
162
- def predict_joints(input_data, vox, threshold=1e-5, bandwidth=None):
163
- """Predict skeleton joints"""
164
- data_displacement, _, attn_pred, bandwidth_pred = jointNet(input_data)
165
- y_pred = data_displacement + input_data.pos
166
- y_pred_np = y_pred.data.cpu().numpy()
167
- attn_pred_np = attn_pred.data.cpu().numpy()
168
-
169
- y_pred_np, index_inside = inside_check(y_pred_np, vox)
170
- attn_pred_np = attn_pred_np[index_inside, :]
171
- y_pred_np = y_pred_np[attn_pred_np.squeeze() > 1e-3]
172
- attn_pred_np = attn_pred_np[attn_pred_np.squeeze() > 1e-3]
173
-
174
- # Symmetrize points by reflecting
175
- y_pred_np_reflect = y_pred_np * np.array([[-1, 1, 1]])
176
- y_pred_np = np.concatenate((y_pred_np, y_pred_np_reflect), axis=0)
177
- attn_pred_np = np.tile(attn_pred_np, (2, 1))
178
-
179
- if bandwidth is None:
180
- bandwidth = bandwidth_pred.item()
181
-
182
- y_pred_np = meanshift_cluster(y_pred_np, bandwidth, attn_pred_np, max_iter=40)
183
-
184
- Y_dist = np.sum(((y_pred_np[np.newaxis, ...] - y_pred_np[:, np.newaxis, :]) ** 2), axis=2)
185
- density = np.maximum(bandwidth ** 2 - Y_dist, np.zeros(Y_dist.shape))
186
- density = np.sum(density, axis=0)
187
- density_sum = np.sum(density)
188
-
189
- y_pred_np = y_pred_np[density / density_sum > threshold]
190
- attn_pred_np = attn_pred_np[density / density_sum > threshold][:, 0]
191
- density = density[density / density_sum > threshold]
192
-
193
- pred_joints = nms_meanshift(y_pred_np, density, bandwidth)
194
- pred_joints, _ = flip(pred_joints)
195
-
196
- # Prepare pair-wise bone data
197
- pairs = list(it.combinations(range(pred_joints.shape[0]), 2))
198
- pair_attr = []
199
- for pr in pairs:
200
- dist = np.linalg.norm(pred_joints[pr[0]] - pred_joints[pr[1]])
201
- bone_samples = sample_on_bone(pred_joints[pr[0]], pred_joints[pr[1]])
202
- bone_samples_inside, _ = inside_check(bone_samples, vox)
203
- outside_proportion = len(bone_samples_inside) / (len(bone_samples) + 1e-10)
204
- attr = np.array([dist, outside_proportion, 1])
205
- pair_attr.append(attr)
206
-
207
- pairs = np.array(pairs)
208
- pair_attr = np.array(pair_attr)
209
- pairs = torch.from_numpy(pairs).float()
210
- pair_attr = torch.from_numpy(pair_attr).float()
211
- pred_joints = torch.from_numpy(pred_joints).float()
212
-
213
- joints_batch = torch.zeros(len(pred_joints), dtype=torch.long)
214
- pairs_batch = torch.zeros(len(pairs), dtype=torch.long)
215
 
216
- input_data.joints = pred_joints
217
- input_data.pairs = pairs
218
- input_data.pair_attr = pair_attr
219
- input_data.joints_batch = joints_batch
220
- input_data.pairs_batch = pairs_batch
221
-
222
- return input_data
223
-
224
- def predict_skeleton(input_data, vox):
225
- """Predict skeleton structure"""
226
- root_id = getInitId(input_data, rootNet)
227
- pred_joints = input_data.joints.data.cpu().numpy()
228
-
229
- with torch.no_grad():
230
- connect_prob, _ = boneNet(input_data, permute_joints=False)
231
- connect_prob = torch.sigmoid(connect_prob)
232
-
233
- pair_idx = input_data.pairs.long().data.cpu().numpy()
234
- prob_matrix = np.zeros((len(input_data.joints), len(input_data.joints)))
235
- prob_matrix[pair_idx[:, 0], pair_idx[:, 1]] = connect_prob.data.cpu().numpy().squeeze()
236
- prob_matrix = prob_matrix + prob_matrix.transpose()
237
-
238
- cost_matrix = -np.log(prob_matrix + 1e-10)
239
- cost_matrix = increase_cost_for_outside_bone(cost_matrix, pred_joints, vox)
240
-
241
- pred_skel = Info()
242
- parent, key, root_id = primMST_symmetry(cost_matrix, root_id, pred_joints)
243
-
244
- for i in range(len(parent)):
245
- if parent[i] == -1:
246
- from utils.tree_utils import TreeNode
247
- pred_skel.root = TreeNode('root', tuple(pred_joints[i]))
248
- break
249
-
250
- loadSkel_recur(pred_skel.root, i, None, pred_joints, parent)
251
- pred_skel.joint_pos = pred_skel.get_joint_dict()
252
-
253
- return pred_skel
254
-
255
- def calc_geodesic_matrix(bones, mesh_v, surface_geodesic, mesh_filename, subsampling=True):
256
- """Calculate volumetric geodesic distance from vertices to bones"""
257
- if subsampling:
258
- mesh0 = o3d.io.read_triangle_mesh(mesh_filename)
259
- mesh0 = mesh0.simplify_quadric_decimation(3000)
260
- simplified_path = mesh_filename.replace(".obj", "_simplified.obj")
261
- o3d.io.write_triangle_mesh(simplified_path, mesh0)
262
- mesh_trimesh = trimesh.load(simplified_path)
263
-
264
- subsamples_ids = np.random.choice(len(mesh_v), np.min((len(mesh_v), 1500)), replace=False)
265
- subsamples = mesh_v[subsamples_ids, :]
266
- surface_geodesic = surface_geodesic[subsamples_ids, :][:, subsamples_ids]
267
- else:
268
- mesh_trimesh = trimesh.load(mesh_filename)
269
- subsamples = mesh_v
270
-
271
- origins, ends, pts_bone_dist = pts2line(subsamples, bones)
272
- pts_bone_visibility = calc_pts2bone_visible_mat(mesh_trimesh, origins, ends)
273
- pts_bone_visibility = pts_bone_visibility.reshape(len(bones), len(subsamples)).transpose()
274
- pts_bone_dist = pts_bone_dist.reshape(len(bones), len(subsamples)).transpose()
275
-
276
- # Remove visible points which are too far
277
- for b in range(pts_bone_visibility.shape[1]):
278
- visible_pts = np.argwhere(pts_bone_visibility[:, b] == 1).squeeze(1)
279
- if len(visible_pts) == 0:
280
- continue
281
- threshold_b = np.percentile(pts_bone_dist[visible_pts, b], 15)
282
- pts_bone_visibility[pts_bone_dist[:, b] > 1.3 * threshold_b, b] = False
283
-
284
- visible_matrix = np.zeros(pts_bone_visibility.shape)
285
- visible_matrix[np.where(pts_bone_visibility == 1)] = pts_bone_dist[np.where(pts_bone_visibility == 1)]
286
-
287
- for c in range(visible_matrix.shape[1]):
288
- unvisible_pts = np.argwhere(pts_bone_visibility[:, c] == 0).squeeze(1)
289
- visible_pts = np.argwhere(pts_bone_visibility[:, c] == 1).squeeze(1)
290
-
291
- if len(visible_pts) == 0:
292
- visible_matrix[:, c] = pts_bone_dist[:, c]
293
- continue
294
-
295
- for r in unvisible_pts:
296
- dist1 = np.min(surface_geodesic[r, visible_pts])
297
- nn_visible = visible_pts[np.argmin(surface_geodesic[r, visible_pts])]
298
- if np.isinf(dist1):
299
- visible_matrix[r, c] = 8.0 + pts_bone_dist[r, c]
300
- else:
301
- visible_matrix[r, c] = dist1 + visible_matrix[nn_visible, c]
302
-
303
- if subsampling:
304
- nn_dist = np.sum((mesh_v[:, np.newaxis, :] - subsamples[np.newaxis, ...]) ** 2, axis=2)
305
- nn_ind = np.argmin(nn_dist, axis=1)
306
- visible_matrix = visible_matrix[nn_ind, :]
307
- os.remove(simplified_path)
308
-
309
- return visible_matrix
310
-
311
- def predict_skinning(input_data, pred_skel, surface_geodesic, mesh_filename, subsampling=True):
312
- """Predict skinning weights"""
313
- num_nearest_bone = 5
314
- bones, bone_names, bone_isleaf = get_bones(pred_skel)
315
- mesh_v = input_data.pos.data.cpu().numpy()
316
-
317
- print(" Calculating volumetric geodesic distance...")
318
- geo_dist = calc_geodesic_matrix(bones, mesh_v, surface_geodesic, mesh_filename, subsampling=subsampling)
319
-
320
- input_samples = []
321
- loss_mask = []
322
- skin_nn = []
323
-
324
- for v_id in range(len(mesh_v)):
325
- geo_dist_v = geo_dist[v_id]
326
- bone_id_near_to_far = np.argsort(geo_dist_v)
327
- this_sample = []
328
- this_nn = []
329
- this_mask = []
330
-
331
- for i in range(num_nearest_bone):
332
- if i >= len(bones):
333
- this_sample += bones[bone_id_near_to_far[0]].tolist()
334
- this_sample.append(1.0 / (geo_dist_v[bone_id_near_to_far[0]] + 1e-10))
335
- this_sample.append(bone_isleaf[bone_id_near_to_far[0]])
336
- this_nn.append(0)
337
- this_mask.append(0)
338
- else:
339
- skel_bone_id = bone_id_near_to_far[i]
340
- this_sample += bones[skel_bone_id].tolist()
341
- this_sample.append(1.0 / (geo_dist_v[skel_bone_id] + 1e-10))
342
- this_sample.append(bone_isleaf[skel_bone_id])
343
- this_nn.append(skel_bone_id)
344
- this_mask.append(1)
345
-
346
- input_samples.append(np.array(this_sample)[np.newaxis, :])
347
- skin_nn.append(np.array(this_nn)[np.newaxis, :])
348
- loss_mask.append(np.array(this_mask)[np.newaxis, :])
349
-
350
- skin_input = np.concatenate(input_samples, axis=0)
351
- loss_mask = np.concatenate(loss_mask, axis=0)
352
- skin_nn = np.concatenate(skin_nn, axis=0)
353
-
354
- skin_input = torch.from_numpy(skin_input).float()
355
- input_data.skin_input = skin_input
356
- input_data.to(device)
357
-
358
- skin_pred = skinNet(input_data)
359
- skin_pred = torch.softmax(skin_pred, dim=1)
360
- skin_pred = skin_pred.data.cpu().numpy()
361
- skin_pred = skin_pred * loss_mask
362
-
363
- skin_nn = skin_nn[:, 0:num_nearest_bone]
364
- skin_pred_full = np.zeros((len(skin_pred), len(bone_names)))
365
-
366
- for v in range(len(skin_pred)):
367
- for nn_id in range(len(skin_nn[v, :])):
368
- skin_pred_full[v, skin_nn[v, nn_id]] = skin_pred[v, nn_id]
369
-
370
- print(" Filtering skinning prediction...")
371
- tpl_e = input_data.tpl_edge_index.data.cpu().numpy()
372
- skin_pred_full = post_filter(skin_pred_full, tpl_e, num_ring=1)
373
- skin_pred_full[skin_pred_full < np.max(skin_pred_full, axis=1, keepdims=True) * 0.35] = 0.0
374
- skin_pred_full = skin_pred_full / (skin_pred_full.sum(axis=1, keepdims=True) + 1e-10)
375
-
376
- skel_res = assemble_skel_skin(pred_skel, skin_pred_full)
377
- return skel_res
378
-
379
- def process_model(input_file, bandwidth_val, threshold_val):
380
- """Main processing function for Gradio interface"""
381
  try:
382
- # Load models if not already loaded
383
- load_models()
384
-
385
- # Create temporary directory for processing
386
- temp_dir = tempfile.mkdtemp()
387
-
388
- # Copy input file
389
- input_path = Path(input_file.name)
390
- temp_input = os.path.join(temp_dir, "input_ori.obj")
391
- shutil.copy(input_path, temp_input)
392
-
393
- # Remesh the input
394
- print("Preprocessing: Remeshing input...")
395
- mesh_ori = o3d.io.read_triangle_mesh(temp_input)
396
- mesh_remesh = mesh_ori.simplify_quadric_decimation(4000)
397
- temp_remesh = os.path.join(temp_dir, "input_remesh.obj")
398
- o3d.io.write_triangle_mesh(temp_remesh, mesh_remesh)
399
 
400
- # Create data
401
- print("Creating data...")
402
- data, vox, surface_geodesic, translation, scale = create_single_data(temp_remesh)
403
- data.to(device)
 
 
404
 
405
- # Predict joints
406
- print("Predicting joints...")
407
- data = predict_joints(data, vox, threshold=threshold_val, bandwidth=bandwidth_val)
408
- data.to(device)
409
 
410
- # Predict skeleton
411
- print("Predicting skeleton connectivity...")
412
- pred_skeleton = predict_skeleton(data, vox)
413
 
414
- # Predict skinning
415
- print("Predicting skinning weights...")
416
- normalized_mesh = temp_remesh.replace("_remesh.obj", "_normalized.obj")
417
- pred_rig = predict_skinning(data, pred_skeleton, surface_geodesic,
418
- normalized_mesh, subsampling=True)
419
 
420
- # Denormalize
421
- pred_rig.normalize(scale, -translation)
 
 
 
 
422
 
423
- # Save result
424
- output_file = os.path.join(temp_dir, "output_rig.txt")
425
- pred_rig.save(output_file)
426
-
427
- print("✓ Processing complete!")
428
-
429
- # Create info message
430
- num_joints = len(pred_rig.joint_pos)
431
- info_msg = f"Successfully generated rig with {num_joints} joints!"
432
-
433
- return output_file, info_msg
434
 
435
  except Exception as e:
436
- import traceback
437
- error_msg = f"Error: {str(e)}\n{traceback.format_exc()}"
438
  print(error_msg)
439
- return None, error_msg
440
 
441
- # Gradio Interface
442
- def create_demo():
443
- """Create Gradio interface"""
444
-
445
- with gr.Blocks(title="RigNet: Automatic 3D Character Rigging") as demo:
446
- gr.Markdown("""
447
- # 🎮 RigNet: Automatic Character Rigging
448
-
449
- Upload a 3D character model (OBJ format) and automatically generate a skeletal rig with skinning weights.
450
-
451
- **Based on:** [RigNet: Neural Rigging for Articulated Characters (SIGGRAPH 2020)](https://github.com/zhan-xu/RigNet)
452
-
453
- ### Instructions:
454
- 1. Upload your 3D character mesh in OBJ format
455
- 2. Adjust parameters if needed (default values work for most cases)
456
- 3. Click "Generate Rig" and wait for processing
457
- 4. Download the generated rig file
458
-
459
- **Note:** For best results, simplify your mesh to 1K-5K vertices before uploading.
460
- """)
461
-
462
- with gr.Row():
463
- with gr.Column():
464
- input_mesh = gr.File(label="Upload 3D Model (.obj)", file_types=[".obj"])
465
-
466
- with gr.Accordion("Advanced Parameters", open=False):
467
- bandwidth = gr.Slider(
468
- minimum=0.02, maximum=0.08, value=0.0429, step=0.001,
469
- label="Bandwidth (for joint clustering)",
470
- info="Default: 0.0429. Adjust if joint prediction is too dense/sparse"
471
- )
472
- threshold = gr.Slider(
473
- minimum=0.1e-5, maximum=5e-5, value=1e-5, step=0.1e-5,
474
- label="Density Threshold",
475
- info="Default: 1e-5. Higher values = fewer joints"
476
- )
477
-
478
- process_btn = gr.Button("🚀 Generate Rig", variant="primary", size="lg")
479
-
480
- with gr.Column():
481
- output_file = gr.File(label="Download Rig Output (.txt)")
482
- status_msg = gr.Textbox(label="Status", lines=3)
483
-
484
- gr.Markdown("""
485
- ### Output Format:
486
- The generated `.txt` file contains:
487
- - **Joint definitions:** Position of each joint in 3D space
488
- - **Hierarchy:** Parent-child relationships between joints
489
- - **Skinning weights:** How each vertex is influenced by nearby joints
490
-
491
- ### Next Steps:
492
- - Import the mesh and rig file into animation software (Maya, Blender, etc.)
493
- - Use provided scripts (e.g., `maya_save_fbx.py`) to convert to FBX format
494
- - Start animating your character!
495
-
496
- ---
497
- **References:**
498
- - [RigNet Paper](https://arxiv.org/abs/2005.00559)
499
- - [GitHub Repository](https://github.com/zhan-xu/RigNet)
500
- - [Project Page](https://zhan-xu.github.io/rig-net/)
501
- """)
502
-
503
- # Event handler
504
- process_btn.click(
505
- fn=process_model,
506
- inputs=[input_mesh, bandwidth, threshold],
507
- outputs=[output_file, status_msg]
508
- )
509
-
510
- return demo
511
 
512
  if __name__ == "__main__":
513
- demo = create_demo()
514
- demo.launch(share=False)
 
 
 
 
 
 
 
 
 
1
+ #!/usr/bin/env python3
2
  """
3
+ Minimal Gradio Test - Just read and display OBJ file
 
 
4
  """
5
 
 
 
6
  import gradio as gr
 
 
 
 
 
 
 
 
 
7
 
8
+ def test_file_upload(input_file):
9
+ """Simple function to test if file upload works"""
10
+ print("\n" + "="*60)
11
+ print("🔍 TEST FUNCTION CALLED!")
12
+ print(f"Type: {type(input_file)}")
13
+ print(f"Value: {input_file}")
14
+ print("="*60 + "\n")
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
15
 
16
+ if input_file is None:
17
+ return "❌ No file uploaded"
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
18
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
19
  try:
20
+ # Try to get file path
21
+ file_path = None
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
22
 
23
+ if hasattr(input_file, 'name'):
24
+ file_path = input_file.name
25
+ elif isinstance(input_file, str):
26
+ file_path = input_file
27
+ elif isinstance(input_file, dict) and 'name' in input_file:
28
+ file_path = input_file['name']
29
 
30
+ print(f"File path: {file_path}")
 
 
 
31
 
32
+ if not file_path:
33
+ return f" Could not get file path. Type was: {type(input_file)}"
 
34
 
35
+ # Read first 10 lines
36
+ with open(file_path, 'r') as f:
37
+ lines = [f.readline() for _ in range(10)]
 
 
38
 
39
+ result = "✅ File uploaded successfully!\n\n"
40
+ result += f"File path: {file_path}\n\n"
41
+ result += "First 10 lines:\n"
42
+ result += "="*50 + "\n"
43
+ result += "".join(lines)
44
+ result += "="*50
45
 
46
+ print("SUCCESS! Returning result")
47
+ return result
 
 
 
 
 
 
 
 
 
48
 
49
  except Exception as e:
50
+ error_msg = f"❌ Error: {str(e)}"
 
51
  print(error_msg)
52
+ return error_msg
53
 
54
+
55
+ # Create simple interface
56
+ demo = gr.Interface(
57
+ fn=test_file_upload,
58
+ inputs=gr.File(label="Upload OBJ File", file_types=[".obj"], type="file"),
59
+ outputs=gr.Textbox(label="Result", lines=15),
60
+ title="🧪 File Upload Test",
61
+ description="Upload an OBJ file to test if Gradio file upload is working."
62
+ )
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
63
 
64
  if __name__ == "__main__":
65
+ print("="*60)
66
+ print("Starting minimal Gradio test...")
67
+ print("="*60)
68
+
69
+ demo.launch(
70
+ server_name="0.0.0.0",
71
+ server_port=7860,
72
+ share=False,
73
+ show_error=True
74
+ )