lif-enable

model is a machine with shell 、parts 。。。。,and user need click some inner face to set params 。

I use material opacity + border help user find face

NV T600 Laptop

> Make sure your program is running on the external graphics card. yes,i disabled inter graphics card

> Also if you set draw mode to separate, it's gonna be much slower. if I create some groupnode , how to display groupnode border?