#include "..\..\VertexShader.h"

;------------------------------------------------------------------------------
; Defines
;------------------------------------------------------------------------------

#define C_EYE_POSITION			c16


;------------------------------------------------------------------------------
; Lighting calculation
;------------------------------------------------------------------------------

; Initialize diffuse color
mov		oD0.xyz, C_MATERIAL_COLOR

; Compute the normalized vertex to eye vector
add		rVertexToEye, C_EYE_POSITION, -pPos
NormalizeVector(rVertexToEye)

; Store 1 - E-dot-N in diffuse alpha
dp3		rTemp.x, pNormal, rVertexToEye
add		oD0.w, C_ONE.x, -rTemp.x