俯首贴耳: take it lying down; take orders [hear and obey] submissively; be all obedience; be docile and obedient; be extremely obedient; be servile; obey docilely [submissively; meekly; servilely];
After you have insert raytrace in the reflection map you will see that the material editor is showing new settings （在你将光线追踪指定到反射贴图通道以后，你将看到材质编辑器显示出新的属性。
2.
Automatic / map channel - allows to apply anisotropy to a specific map channel or use it in automatic mode which will use the object coordinates to align the anisotropy effect 自动贴图通道自动或者通过贴图通道里面的贴图来干预最终结果。自动时候将与物体的坐标系相符。
