Per_Pixel_Lighting Per-pixel lighting is commonly used with other computer graphics techniques to help improve render quality, including bump mapping, specularity, phong shading, and shadow volumes.

D3D模型光照的信息 想学习HLSL的同学 可以下载-HDR lighting information there are some basic code for beginners with

DirectX9+HLSL Half Lambert and Blinn Phong Shader