some tips in Maya

1.关闭mainWindow

global string $gMainWindow;
window  -e -vis 0 $gMainWindow;

2.Render设置 窗口出错

重新生成UI

 deleteUI unifiedRenderGlobalsWindow; 
 buildNewSceneUI;

3.材质球不刷新

renderThumbnailUpdate 0;  

4.强制标脏

dgdirty

5.后台拍屏

setAttr("hardwareRenderingGlobals.floatingPointRTEnable" , False)