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https://github.com/nillerusr/source-engine.git
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24 lines
694 B
Plaintext
24 lines
694 B
Plaintext
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ps.1.1
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;------------------------------------------------------------------------------
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; Draw a texture . . woo hoo!
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; t0 - texture
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;
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; The texture coordinates need to be defined as follows:
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; tc0 - texcoords
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;------------------------------------------------------------------------------
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tex t0
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tex t1
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tex t2
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mul r0.rgb, t0, v0 + ; base times vertex color (no alpha)
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mov r0.a, v0.a ; Grab alpha from vertex color
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mul r0.rgb, t1, r0 ; fold in lighting (color only)
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mul_x2 r1.rgb, r0, t2 ; detail texture
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lrp r0.rgb, c2, r1, r0
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mul_x2 r0.rgb, c0, r0 ; * 2 * (overbrightFactor/2)
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mul r1, c1, t0 ; Self illum * tint
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lrp r0.rgb, t0.a, r1, r0 ; Blend between self-illum + base * lightmap
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