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Small fix for 422f772c4

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Andrej730
2023-08-23 12:30:13 +05:00
parent a3fd169bb6
commit 6f9da163fb
1 changed files with 2 additions and 0 deletions
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src/blenderbim/blenderbim/tool/geometry.py
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@@ -402,6 +402,8 @@ class Geometry(blenderbim.core.tool.Geometry):
return styles return styles
usage_count = [0] * len(obj.material_slots) usage_count = [0] * len(obj.material_slots)
if not usage_count: # if there are no materials, polygons will still use index 0
return []
for poly in obj.data.polygons: for poly in obj.data.polygons:
usage_count[poly.material_index] += 1 usage_count[poly.material_index] += 1
styles = [style for style, usage in zip(styles, usage_count, strict=True) if usage > 0] styles = [style for style, usage in zip(styles, usage_count, strict=True) if usage > 0]