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vs.1.1
# DYNAMIC: "DOWATERFOG" "0..1"
#include "macros.vsh"
;------------------------------------------------------------------------------
; Vertex blending
;------------------------------------------------------------------------------
&AllocateRegister( \$projPos );
; Transform position from object to projection space
dp4 $projPos.x, $vPos, $cModelViewProj0
dp4 $projPos.y, $vPos, $cModelViewProj1
dp4 $projPos.z, $vPos, $cModelViewProj2
dp4 $projPos.w, $vPos, $cModelViewProj3
mov oPos, $projPos
;------------------------------------------------------------------------------
; Fog
;------------------------------------------------------------------------------
alloc $worldPos
if( $DOWATERFOG == 1 )
{
; Get the worldpos z component only since that's all we need for height fog
dp4 $worldPos.z, $vPos, $cModel2
}
&CalcFog( $worldPos, $projPos );
free $worldPos
&FreeRegister( \$projPos );
;------------------------------------------------------------------------------
; Texture coordinates
;------------------------------------------------------------------------------
; Compute the texture coordinates given the offset between
; each bumped lightmap
&AllocateRegister( \$offset );
mov $offset.x, $vTexCoord2.x
mov $offset.y, $cZero
dp4 oT0.x, $vTexCoord0, $SHADER_SPECIFIC_CONST_0
dp4 oT0.y, $vTexCoord0, $SHADER_SPECIFIC_CONST_1
add oT1.xy, $offset, $vTexCoord1
mad oT2.xy, $offset, $cTwo, $vTexCoord1
; make a 3
alloc $three
add $three, $cOne, $cTwo
mad oT3.xy, $offset, $three, $vTexCoord1
free $three
mov oD0, $vColor
&FreeRegister( \$offset );
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