try registration

data/cloth3d_io.py

@@ -369,6 +369,17 @@ def plot_3d(mesh, faces):
     return fig
 
 
+def quads2tris(F):
+    out = []
+    for f in F:
+        if len(f) == 3: out += [f]
+        elif len(f) == 4: out += [[f[0],f[1],f[2]],
+                                [f[0],f[2],f[3]]]
+        else: print("This should not happen...")
+    return np.array(out, np.int32)
+
+
+
 if __name__ == '__main__':
     from custom_utils.custom_utils import _maskFaces