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57 lines
1.6 KiB
57 lines
1.6 KiB
vs.1.1 |
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# DYNAMIC: "DOWATERFOG" "0..1" |
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#include "macros.vsh" |
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;------------------------------------------------------------------------------ |
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; Vertex blending |
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;------------------------------------------------------------------------------ |
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alloc $projPos |
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; Transform position from object to projection space |
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; put in r1 now since we need it for fog. |
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dp4 $projPos.x, $vPos, $cModelViewProj0 |
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dp4 $projPos.y, $vPos, $cModelViewProj1 |
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dp4 $projPos.z, $vPos, $cModelViewProj2 |
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dp4 $projPos.w, $vPos, $cModelViewProj3 |
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mov oPos, $projPos |
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alloc $worldPos |
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if( $DOWATERFOG == 1 ) |
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{ |
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; Get the worldpos z component only since that's all we need for height fog |
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dp4 $worldPos.z, $vPos, $cModel2 |
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} |
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&CalcFog( $worldPos, $projPos ); |
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free $worldPos |
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;------------------------------------------------------------------------------ |
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; Texture coordinates |
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;------------------------------------------------------------------------------ |
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; Compute the texture coordinates given the offset between |
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; each bumped lightmap |
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&AllocateRegister( \$bumpOffset ); |
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mov $bumpOffset.xy, $vTexCoord2 |
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mov oT0, $vTexCoord0 ; bumpmap texcoords |
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add oT1.xy, $bumpOffset, $vTexCoord1 ; first lightmap texcoord |
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mad oT2.xy, $bumpOffset, $cTwo, $vTexCoord1 ; second lightmap texcoord |
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; make a 3 |
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alloc $three |
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add $three, $cOne, $cTwo |
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mad oT3.xy, $bumpOffset, $three, $vTexCoord1 ; third lightmap texcoord |
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free $three |
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&FreeRegister( \$bumpOffset ); |
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;------------------------------------------------------------------------------ |
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; Fog |
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;------------------------------------------------------------------------------ |
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free $projPos
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