ModelTranslator: RizomUV 间歇 IPC 失败换新实例重试一次（实测 Cut 偶发 2000ms not responding）

Tools/ModelTranslator/rizom_unwrap.py

@@ -91,16 +91,32 @@ def _call(label, fn, params, timeout=TIMEOUT_S):
     return res
 
 
+RETRY = 1   # 实例级重试次数：RizomUV IPC 有 2000ms 内部响应窗，偶发 not responding
+
+
 def rizom_unwrap(fbx_path, exe, map_res=MAP_RES, padding_px=PADDING_PX):
-    """AutoSeam 全自动切缝 -> Unfold -> Pack -> 覆盖保存 fbx_path。失败抛 RizomError。"""
+    """AutoSeam 全自动切缝 -> Unfold -> Pack -> 覆盖保存 fbx_path。失败抛 RizomError。
+    间歇性 IPC 失败自动换新实例重试一次。"""
     mod = _import_link(exe)
+    fbx_abs = os.path.abspath(fbx_path)
+    pad_uv = float(padding_px) / map_res
+    last = None
+    for attempt in range(1 + RETRY):
+        if attempt:
+            print("[警告] RizomUV 第 %d 次失败（%s），换新实例重试" % (attempt, last))
+        try:
+            return _unwrap_once(mod, exe, fbx_abs, map_res, pad_uv)
+        except RizomError as e:
+            last = e
+    raise RizomError("重试后仍失败：%s" % last)
+
+
+def _unwrap_once(mod, exe, fbx_abs, map_res, pad_uv):
     link = mod.CRizomUVLink()
     try:
         _call("RunRizomUV", lambda _p: link.RunRizomUV(exePath=exe), None, timeout=60)
     except RizomError as e:
         raise RizomError("RizomUV 启动失败（license/环境）：%s" % e)
-    fbx_abs = os.path.abspath(fbx_path)
-    pad_uv = float(padding_px) / map_res
     try:
         _call("Load", link.Load, {"File.Path": fbx_abs, "File.XYZ": True})
         # AutoSeam：MOSAIC(QuasiDevelopable) + 切柄/连洞 + 防重叠后处理