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

;------------------------------------------------------------------------------
; Texture coordinates
;------------------------------------------------------------------------------

; Base texture is the normal map
mul		oT0.xy, vTexCoords, C_TEXCOORD_DECOMPRESS

; Transform light direction into texture space and store as a texture stage
mov		rTemp, vLightDir
dp3		oT1.x, rTemp, vBasisU
dp3		oT1.y, rTemp, vBasisV
dp3		oT1.z, rTemp, vNormal

; Copy light map coords from UV set 1
mul		oT2.xy, vTexCoords1, C_TEXCOORD_DECOMPRESS