vs_2_0
dcl_position	v0
dcl_normal		v1
dcl_texcoord0	v3
dcl_tangent	v7
dcl_binormal	v8
dcl_texcoord4	v9
#include "..\..\VertexShader.h"

;------------------------------------------------------------------------------
; Geometry transform
;------------------------------------------------------------------------------

; Copy model-space geometry to pipeline registers
mov		pPos, vPos
mov		pNormal, vNormal

; Copy model-space basis vectors to pipeline registers
mov		pBasisU, vBasisU
mov		pBasisV, vBasisV

; Transform position to projection space
m4x4	OPOS, vPos, C_PROJECTION_MATRIX
FIXUP_OPOS
#include "..\..\VertexShader.h"

;------------------------------------------------------------------------------
; Diffuse color
;------------------------------------------------------------------------------

; Initialize diffuse color
mov		oD0, C_MATERIAL_COLOR
#include "..\..\VertexShader.h"

;------------------------------------------------------------------------------
; Fog calculation
;------------------------------------------------------------------------------
#include "..\..\VertexShader.h"

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

#define C_LIGHT_POSITION		c10
#define C_LIGHT_ATTEN			c11
#define C_LIGHT_DIRECTION		c12
#define C_LIGHT_CONE			c13


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

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

; Transform L vector into texture space and store as a texture stage
add		rVertexToLight, C_LIGHT_POSITION, -pPos
dp3		oT1.x, rVertexToLight, pBasisU
dp3		oT1.y, rVertexToLight, pBasisV
dp3		oT1.z, rVertexToLight, pNormal

; Store per-vertex light attenuation in diffuse alpha
dp3		rTemp.w, rVertexToLight, rVertexToLight					/* Calc light vector */
rsq		rVertexToLight.w, rTemp.w
dst		rTemp, rTemp.wwww, rVertexToLight.wwww					/* Calc attenuation */
dp3		rTemp.w, rTemp, C_LIGHT_ATTEN
rcp		rLightCoeff.x, rTemp.w
mul		rVertexToLight.xyz, rVertexToLight, rVertexToLight.w	/* Normalize light vector */
dp3		rTemp.w, rVertexToLight, -C_LIGHT_DIRECTION				/* Scale by spotlight cone */
mad		rTemp.w, rTemp.w, C_LIGHT_CONE.x, C_LIGHT_CONE.y
mul		oD0.a, rLightCoeff.x, rTemp.w