Initial snapshot: hand motion pipeline (Dyn-HaMR + dex-retargeting + SPIDER)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

third_party/hamer/third-party/ViTPose/tests/utils/mesh_utils.py

@@ -0,0 +1,35 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os
+import pickle
+
+import numpy as np
+from scipy.sparse import csc_matrix
+
+
+def generate_smpl_weight_file(output_dir):
+    """Generate a SMPL model weight file to initialize SMPL model, and generate
+    a 3D joints regressor file."""
+
+    if not os.path.exists(output_dir):
+        os.makedirs(output_dir)
+
+    joint_regressor_file = os.path.join(output_dir, 'test_joint_regressor.npy')
+    np.save(joint_regressor_file, np.zeros([24, 6890]))
+
+    test_data = {}
+    test_data['f'] = np.zeros([1, 3], dtype=np.int32)
+    test_data['J_regressor'] = csc_matrix(np.zeros([24, 6890]))
+    test_data['kintree_table'] = np.zeros([2, 24], dtype=np.uint32)
+    test_data['J'] = np.zeros([24, 3])
+    test_data['weights'] = np.zeros([6890, 24])
+    test_data['posedirs'] = np.zeros([6890, 3, 207])
+    test_data['v_template'] = np.zeros([6890, 3])
+    test_data['shapedirs'] = np.zeros([6890, 3, 10])
+
+    with open(os.path.join(output_dir, 'SMPL_NEUTRAL.pkl'), 'wb') as out_file:
+        pickle.dump(test_data, out_file)
+    with open(os.path.join(output_dir, 'SMPL_MALE.pkl'), 'wb') as out_file:
+        pickle.dump(test_data, out_file)
+    with open(os.path.join(output_dir, 'SMPL_FEMALE.pkl'), 'wb') as out_file:
+        pickle.dump(test_data, out_file)
+    return