Create is_watertight.py

hy3dshape/tools/evaluation/is_watertight.py

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+import igl # pip install libigl
+import numpy as np
+import trimesh
+
+mesh_file = 'your_mesh.glb'
+mesh = trimesh.load(mesh_file, force='mesh', process=False)
+F = np.asarray(mesh.faces)
+bnd_loops = igl.boundary_loop(F)
+
+if len(bnd_loops) == 0 and igl.is_edge_manifold(F) and igl.is_vertex_manifold(F).all():
+    print("判断网格是水密的封闭流形")
+else:
+    print("非水密网格")