Pols to edges mk2 Fix for empty lists (#3797)

d6969756 · Victor Doval · GitHub · 63887c80 · d6969756
--- a/utils/sv_mesh_utils.py
+++ b/utils/sv_mesh_utils.py
@@ -83,6 +83,9 @@ def polygons_to_edges_np(obj, unique_edges=False, output_numpy=False):
    result = []

    for pols in obj:
+        if len(pols) == 0:
+            result.append([])
+            continue
        regular_mesh = True
        try:
            np_pols = array(pols, dtype=int32)