创建文本文档，复制以下代码保存为ViewportAutoSnap.ms

------自动切换2.5D和3D捕捉 复制文件至------安装路径C:\Program Files\Autodesk\3ds Max Design 2012\Scripts\Startup (  callbacks.removeScripts id:#wtVPTSnap   global ViewportAutoSnap   fn ViewportAutoSnap =  (  vpt = viewport.getType()   if vpt == #view_persp_user or vpt == #​view_iso_user or vpt == #view_camera or vpt == #​view_spot then  snapMode.type = #3D  else   snapMode.type = #2_5D  )   callbacks.addScript #viewportChange "ViewportAutoSnap()" id:#wtVPTSnap  )