41 lines
851 B
Plaintext
41 lines
851 B
Plaintext
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xps.1.1
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#define AMBIENT c0
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#define DIFFUSE c1
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#define SPECULAR c2
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#define NORMAL_MAP t0
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#define LIGHT_DIR t1
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#define HALF_DIR t2
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#define SHADOW_MAP t3
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#define FALLOFF v0
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def c4, 0.25f,0.25f,0.25f,1.f
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tex t0 ; normal map
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tex t1 ; light dir cubemap
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tex t2 ; half dir cubemap
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tex t3 ; shadow depth map
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; Compute N dot L and N dot H
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xdd r0,r1,t0_bx2,t1_bx2,t0_bx2,t2_bx2
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; Raise N dot H to 16th power
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mul r1.rgb,r1_sat.rgb,r1_sat.rgb
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mul r1.rgb,r1.rgb,r1.rgb
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mul r1.rgb,r1.rgb,r1.rgb
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mul r1.rgb,r1.rgb,r1.rgb
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; Scale diffuse and specular terms by coefficients, and sum the resulting terms.
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xmma r0.rgb,r1.rgb,v1.rgb,DIFFUSE.rgb,r0_sat.rgb,SPECULAR.rgb,r1_sat.rgb
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; Scale by falloff, and add in ambient term
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mad r0.rgb,v0.rgb,v1_sat.rgb,AMBIENT.rgb
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xfc r0,t3,zero,prod,r0,c4,c4.a
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