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15 lines
197 B
C++
15 lines
197 B
C++
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ps.1.1
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// Alpha blend color, output sum of alphas
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// Color is t0 * (1 - t1.a) + t1 * t1.a
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// Alpha is t0.a + t1.a
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tex t0
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tex t1
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lrp r0.rgb, t1.a, t1, t0
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add r0.a, t0, t1;
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mul r0, r0, v0;
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