Justin Marshall
39 lines
1.3 KiB
Plaintext
39 lines
1.3 KiB
Plaintext
{
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parms {
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stageSort sortCoverage
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}
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state {
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depthfunc GL_LEQUAL
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colorMask
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}
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hlsl_vp {
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// Convert back from 16 bit vertex elements.
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float4 position = vertex.position * $vertexXYZScale + $vertexXYZBias;
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// Transform vertex
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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 0 takes the base coordinates modified by stScaleBias for 16 bit vertex elements
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// Also store the distance from the camera in [0,1] range clamping at 1500 units.
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result.texcoord0.xy = ( vertex.texcoord1.xy * $vertexStScaleBias.xy + $vertexStScaleBias.zw ).xy;
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result.texcoord0.z = 0.0;
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result.texcoord0.w = saturate( result.position.w * 0.000667 );
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}
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hlsl_fp {
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// Calculate clip alpha threshold (higher threshold the closer to the texture that we are)
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// This isn't correct in any way, but it does make the texture 'pop' more in the distance but still
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// look sharp and crisp when looking at it close-up.
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half threshold = -0.3 * fragment.texcoord0.w + 0.5;
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// Clip pixels using physical none virtualized texture
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half4 texel = tex2D( $textureMap, fragment.texcoord0.xy );
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clip( texel.a - threshold );
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// Clear output
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result.color0 = _half4( 0.0 );
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result.color1 = _half4( 0.0 );
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}
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} |