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24 lines
356 B
Plaintext
24 lines
356 B
Plaintext
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ps.1.1
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def c0, 0.00f, 0.00f, 0.00f, 0.25f
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def c1, 0.30f, 0.59f, 0.11f, 0.00f
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tex t0
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tex t1
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tex t2
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tex t3
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// r1 = average = ( t0 + t1 + t2 + t3 ) * 0.25
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mul r1.rgb, t0, c0.a
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mad r1.rgb, t1, c0.a, r1
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mad r1.rgb, t2, c0.a, r1
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mad r1.rgb, t3, c0.a, r1
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// r0.a = avg luminance
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dp3 r0, r1, c1
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// r0.rgb = color = average*(luminance)
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mul r0.rgb, r1, r0.a
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