Writing Surface Shaders in Unity3D: BRDF Fake HD

BRDF shading can be very useful for certain situations in real time shading. It describes a more advanced way for the surface of your model to react with the light. This techniques was used in Team Fortress 2 and in Shadowgun. This technique is sometimes referred to as a Diffuse wrap, but I like the BRDF Fake title better. ;-) This tutorial will walk you through the steps of writting the shader and creating the BRDF texture.