diff --git a/Tools/ModelTranslator/bl_decimate.py b/Tools/ModelTranslator/bl_decimate.py
index 58274f89..2838df92 100644
--- a/Tools/ModelTranslator/bl_decimate.py
+++ b/Tools/ModelTranslator/bl_decimate.py
@@ -1,5 +1,5 @@
 """Blender 内运行：FBX 减面到指定三角面数 + UV 重展（锐边 seam 或 Smart UV Project）。
-调用：blender -b --factory-startup --python bl_decimate.py -- <src.fbx> <out.fbx> <target_tris> [seam|smart|none]
+调用：blender -b --factory-startup --python bl_decimate.py -- <src.fbx> <out.fbx> <target_tris> [seam|smart]
 """
 import os
 import sys
@@ -322,13 +322,7 @@ def main():
         if not within_tolerance(target, cur) and cur > target:
             warnings.append("修正 %d 轮后仍超差：%d 面（目标 %d ±3%%）" % (MAX_RETRY, cur, target))
 
-    if unwrap_mode == "none":
-        # rizom 管线：跳过展开，UV 由后续 RizomUV 步骤生成
-        _clear_uv_layers(obj.data)
-        uv_info = {"mode": "none", "islands": 0, "fill": 0.0,
-                   "flipped": 0.0, "overlap": None}
-    else:
-        uv_info = _do_unwrap(obj, unwrap_mode, warnings)
+    uv_info = _do_unwrap(obj, unwrap_mode, warnings)
     out_dir = os.path.dirname(os.path.abspath(out_fbx))
     os.makedirs(out_dir, exist_ok=True)
     # 仅导出合并后的对象；整场景导出会把 armature/empty 等非 mesh 带进 _low.fbx