tag subshader shaderlab

unity的黑科技

https://docs.unity3d.com/Manual/SL-SubShaderTags.html

这里

      reflectCamera.RenderWithShader(replacementShader, "Reflection");

 SubShader {
Tags { "RenderType"="Opaque" "Reflection" = "RenderReflectionOpaque"}
LOD 300