blinn_reflect.nvp

游戏编程精华02－含有几十个游戏编程例子

; Pixel shader - Bumped surface reflections.
; Transforms the bumpmap into the local coordinate system
; by the basis vectors supplied from the vertex shader.
; Then uses the normal and eye vector to generate a 
; reflection vector which looks into a cubemap.

#include "PixelConstants.h"


 
; Declare pixel shader version 1.0
ps.1.0

; Define t0 as a standard 3-vector from bumpmap
tex t0			

; Perform matrix multiply to get a local normal bump.  Then
; reflect the eye vector through the normal and sample from 
; a cubic environment map.
texm3x3pad t1, t0
texm3x3pad t2, t0		
texm3x3vspec t3, t0

; result goes in output color
mov r0, t3