Justin Marshall
72 lines
2.2 KiB
Plaintext
72 lines
2.2 KiB
Plaintext
{
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parms {
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stageSort sortCoverage
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newDiffuseScale exposure.x * newDiffuseScale
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}
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state {
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}
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hlsl_vp {
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#include "skinning_normals.inc"
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result.position.x = dot( position, $mvpMatrixX );
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result.position.y = dot( position, $mvpMatrixY );
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result.position.z = dot( position, $mvpMatrixZ );
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result.position.w = dot( position, $mvpMatrixW );
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// texture projection into the preview texture
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float4 v;
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v.x = dot( position, $modelMatrixX );
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v.y = dot( position, $modelMatrixY );
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v.z = dot( position, $modelMatrixZ );
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v.w = dot( position, $modelMatrixW );
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result.texcoord1.x = dot( v, $radiosityPreviewX );
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result.texcoord1.y = dot( v, $radiosityPreviewY );
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result.texcoord1.z = dot( v, $radiosityPreviewZ );
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result.texcoord1.w = dot( v, $radiosityPreviewW );
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// fog factor in texture 0
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result.texcoord0.xy = _float2( 0.0 );
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result.texcoord0.z = -( clamp( result.position.w - $fogStart.x, 0.0, $fogEnd.x ) * $fogScale.x );
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result.texcoord0.w = 0.0;
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}
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hlsl_fp {
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float2 tc;
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tc.x = fragment.texcoord1.x / fragment.texcoord1.w;
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tc.y = fragment.texcoord1.y / fragment.texcoord1.w;
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tc = ( tc + 1.0 ) * 0.5;
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float4 color = tex2D( $radiosityPreviewMap, tc );
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// color.xyz *= $newDiffuseScale.xyz;
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//---------------------------------------------------------------
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// read the dimshadow factor, apply before fog
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//---------------------------------------------------------------
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// this is normalized window space, not strict openGL window space
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// that uses integer viewport values.
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float4 window;
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window.xy = screenPosToTexcoord( fragment.position.xy, $renderPositionToViewTexture );
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window.z = 0.0;
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window.w = 0.0; // blur factor
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float shadow = tex2Dlod( $viewColorMap, window ).w; // from alpha channel
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// only use half the dimshadow value, since we can't separate the
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// contribution along the shadow from the remainder
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shadow = saturate( shadow + 0.5 );
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// color = tex2D( $radiosityPreviewMap, (float2)window );
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// color.xyz *= $newDiffuseScale.xyz;
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color.xyz *= shadow;
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// --------- calculate fog
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half fog = saturate( exp2( fragment.texcoord0.z ) );
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// lerp towards the fog color by the fog factor
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result.color = lerp( $fogColor, color, fog );
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result.color1 = _float4( 0.0 );
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}
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} |