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83 lines
2.2 KiB
83 lines
2.2 KiB
5 years ago
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vs.1.1
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# DYNAMIC: "DOWATERFOG" "0..1"
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# DYNAMIC: "SKINNING" "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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$cView0 = $SHADER_SPECIFIC_CONST_0;
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$cView1 = $SHADER_SPECIFIC_CONST_1;
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$cView2 = $SHADER_SPECIFIC_CONST_2;
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&AllocateRegister( \$worldPos );
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&AllocateRegister( \$worldNormal );
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&SkinPositionAndNormal( $worldPos, $worldNormal );
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;------------------------------------------------------------------------------
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; Transform the position from world to view space
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;------------------------------------------------------------------------------
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&AllocateRegister( \$projPos );
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dp4 $projPos.x, $worldPos, $cViewProj0
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dp4 $projPos.y, $worldPos, $cViewProj1
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dp4 $projPos.z, $worldPos, $cViewProj2
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dp4 $projPos.w, $worldPos, $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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&CalcFog( $worldPos, $projPos );
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&FreeRegister( \$projPos );
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&AllocateRegister( \$viewNormal );
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; Transform the normal from object to view space
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dp3 $viewNormal.x, $worldNormal, $cView0
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dp3 $viewNormal.y, $worldNormal, $cView1
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dp3 $viewNormal.z, $worldNormal, $cView2
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&FreeRegister( \$worldNormal );
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; normalize normal (do we need to do this?)
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&Normalize( $viewNormal );
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&AllocateRegister( \$viewPos );
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; Transform position from object to view space
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dp4 $viewPos.x, $worldPos, $cView0
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dp4 $viewPos.y, $worldPos, $cView1
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dp4 $viewPos.z, $worldPos, $cView2
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&FreeRegister( \$worldPos );
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&AllocateRegister( \$vertToEye );
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; vector from point to eye in view space
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mov $vertToEye.xyz, -$viewPos
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&FreeRegister( \$viewPos );
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; normalize
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&Normalize( $vertToEye );
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dp3 $viewNormal.x, $vertToEye, $viewNormal
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add $viewNormal.x, $viewNormal.x, $SHADER_SPECIFIC_CONST_5 ; FIXME
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&FreeRegister( \$vertToEye );
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;------------------------------------------------------------------------------
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; Texture coordinates
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;------------------------------------------------------------------------------
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mov oT0, $viewNormal
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mov oT1, $vTexCoord0
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&FreeRegister( \$viewNormal );
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