20 lines
459 B
Plaintext
20 lines
459 B
Plaintext
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xps.1.1
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; Inputs:
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; t0 = surface normal (renormalize and dot with eye)
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; t1 = eye direction
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; c0 = base blob color
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; c1 = ambient color
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; c2 = alpha_scale
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tex t0
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tex t1 ; is probably normalized anyway, the eye position hardly changes wrt the small bloblets
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dp3 r0, t0_bx2, t1_bx2
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mov r1, r0_sat
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mul r0, 1-r1, 1-r1
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mul r0.rgba, 1-r0, c0.rgba
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add r0.rgb, r0.rgb, c1.rgb
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mul r0.a, r0.a, c2.a
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