Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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ps.1.1 |
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; t0: |
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; texture: dudv map |
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; texcoords: dudvmap texcoords |
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; t1: |
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; texture: refraction render target |
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; texcoords: |
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tex t0 ; refraction |
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tex t1 ; sample alpha channel |
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mul r0.rgb, t1, t0 + |
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mov r0.a, t1.a |
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mul r0, r0, c0
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