43 lines
1.1 KiB
V Shell
43 lines
1.1 KiB
V Shell
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vs.1.1
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# DYNAMIC: "DOWATERFOG" "0..1"
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#include "macros.vsh"
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&AllocateRegister( \$projPos );
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dp4 $projPos.x, $vPos, $cViewProj0
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dp4 $projPos.y, $vPos, $cViewProj1
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dp4 $projPos.z, $vPos, $cViewProj2
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dp4 $projPos.w, $vPos, $cViewProj3
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mov oPos, $projPos
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;------------------------------------------------------------------------------
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; Fog
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;------------------------------------------------------------------------------
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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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&FreeRegister( \$projPos );
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; Shadow color
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mov oD0, $vColor
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;------------------------------------------------------------------------------
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; Texture coordinates
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;------------------------------------------------------------------------------
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dp4 r0.x, $vTexCoord0, $SHADER_SPECIFIC_CONST_0
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dp4 r0.y, $vTexCoord0, $SHADER_SPECIFIC_CONST_1
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; Jittered versions
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mov oT0, r0
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add oT1, r0, $SHADER_SPECIFIC_CONST_2
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sub oT2, r0, $SHADER_SPECIFIC_CONST_2
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add oT3, r0, $SHADER_SPECIFIC_CONST_3
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sub oT4, r0, $SHADER_SPECIFIC_CONST_3
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