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47 lines
1.2 KiB
47 lines
1.2 KiB
ps.1.1 |
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;------------------------------------------------------------------------------ |
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; Computes the diffuse component of lighting using lightmap + bumpmap |
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; t0 - decal texture |
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; t1 - Lightmap1 |
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; t2 - Lightmap2 |
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; t3 - Lightmap3 |
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; |
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; The texture coordinates need to be defined as follows: |
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; tc0 - Normalmap and lightmap texture coordinates |
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; c0, c1, c2 - ( ( N dot basis[0] )^2 ), ( ( N dot basis[1] )^2 ), ( ( N dot basis[2] )^2 ) |
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;------------------------------------------------------------------------------ |
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; Get the decal color |
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tex t0 |
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; Sample the lightmaps |
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tex t1 |
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tex t2 |
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tex t3 |
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; output = lightmapColor[0] * ( ( N dot basis[0] )^2 ) + |
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; lightmapColor[1] * ( ( N dot basis[1] )^2 ) + |
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; lightmapColor[2] * ( ( N dot basis[2] )^2 ) + |
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; r0 = lightmapColor[0] * ( ( N dot basis[0] )^2 ) |
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mul r0, t1, c0 |
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; r0 = lightmapColor[0] * ( ( N dot basis[0] )^2 ) + lightmapColor[1] * ( ( N dot basis[1] )^2 ) |
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mad r0, t2, c1, r0 |
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; r0 = lightmapColor[0] * ( ( N dot basis[0] )^2 ) + |
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; lightmapColor[1] * ( ( N dot basis[1] )^2 ) + |
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; lightmapColor[2] * ( ( N dot basis[2] )^2 ) |
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mad r0, t3, c2, r0 |
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; Modulate by decal texture |
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mul r0.rgb, r0, t0 |
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+ mov r0.a, t0.a |
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; Modulate by constant color |
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mul r0, r0, c3 |
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; Modulate by per-vertex factor |
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mul r0, r0, v0 |
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