Hartmut
934728da77
OCC's RWGltf_CafWriter appends _AF0/_AF1 assembly-instance suffixes to mesh object names when a part appears multiple times in an assembly. The material matching in export_gltf.py only stripped Blender's .001 suffix, leaving 24/175 GLB objects without materials. Fix: strip _AFN suffixes via while loop (handles nested _AF0_AF1), add prefix fallback (longest key wins) as last resort before no-match. Also improve build_materials_from_excel Jaccard matching: - Strip _AFN and numeric hash suffixes (-21227) before tokenizing - Add prefix-based fallback (step 3) before position fallback (step 4) - Raise threshold 0.3 → 0.35 for better precision - Guard prefix matches to len >= 5 to prevent trivial false positives Result: Material substitution: 175/175 mesh objects assigned (was 151/175) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>