ModelTranslator: model_decimate 渲染 UV 观察图 PNG 并清理 sidecar

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Tools/ModelTranslator/model_decimate.py

@@ -33,6 +33,17 @@ def main():
     overlap = "%.1f%%" % (u["overlap"] * 100) if u["overlap"] is not None else "n/a"
     print("  UV: 模式=%s 岛数=%d 利用率=%.1f%% 翻转=%.1f%% 重叠=%s" %
           (u["mode"], u["islands"], u["fill"] * 100, u["flipped"] * 100, overlap))
+    if s.get("uv_polys"):
+        try:
+            import json as _json
+            from uv_preview import render_uv_png
+            with open(s["uv_polys"], encoding="utf-8") as fp:
+                polys = _json.load(fp)
+            render_uv_png(polys, s["uv_preview"])
+            os.remove(s["uv_polys"])
+            print("  UV 观察图: %s" % s["uv_preview"])
+        except Exception as e:
+            print("  [警告] UV 观察图渲染失败：%s" % e)
     for w in s["warnings"]:
         print("  [警告] %s" % w)