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

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

#define C_LIGHT_POSITION		c10
#define C_LIGHT_DIR				c11
#define C_SHADING_TYPE			c12

#define C_TEXGEN_MATRIX_1		c13
#define C_TEXGEN_MATRIX_2		c14
#define C_TEXGEN_MATRIX_3		c15

#define C_ATTENUATION_RANGE		c16
#define C_INTERPOLATION_RANGE	c17


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

; Apply texture matrix to position to generate texture coordinates
#ifdef _XBOX
dp4		oT0.x, pPos, C_TEXGEN_MATRIX_1
#else
dp4		oT0, pPos, C_TEXGEN_MATRIX_1
#endif
dp4		oT0.y, pPos, C_TEXGEN_MATRIX_2

; Third texture coordinate needed for perspective divide
dp4		oT0.w, pPos, C_TEXGEN_MATRIX_3

; Copy texcoords for base texture
mul		oT1.xy, vTexCoords, C_TEXCOORD_DECOMPRESS