今天尝试写一个multi pass shader,但其中有一个Pass是surface pass,总是莫名奇妙地报错.后来看到下面帖子: http://forum.unity3d.com/threads/achieving-a-multi-pass-effect-with-a-surface-shader.96393/ 此帖3楼中写道:“ You can add arbitrary passes while using a surface shader. You just stick every