又系学习笔记 这个是针对给自己看的,所以可能很多地方不会说得太明白.创建rendertargetpd3dDevice->CreateTexture( ShadowMap_SIZE, ShadowMap_SIZE,                                         1, D3DUSAGE_RENDERTARGET,                      

放在blog上看起来方便,这个是MSDN上的，DirectX Documentation里也有Intrinsic Functions (DirectX HLSL)The following table lists the intrinsic functions available in HLSL. Each function has a brief description, and a