Unity Shader杂项
法线强度
float3 normalMap = UnpackNormal(tex2D(_NormalTex, IN.uv_MainTex));
NormalMap = float3(normalMap.x * _NormalIntensity, NormalMap.y * _NormalIntensity, normalMap.z )

法线强度
float3 normalMap = UnpackNormal(tex2D(_NormalTex, IN.uv_MainTex));
NormalMap = float3(normalMap.x * _NormalIntensity, NormalMap.y * _NormalIntensity, normalMap.z )
