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29 lines
957 B
29 lines
957 B
ps.1.1 |
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;------------------------------------------------------------------------------ |
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; Draw a texture . . woo hoo! |
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; t0 - texture |
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; |
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; The texture coordinates need to be defined as follows: |
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; tc0 - texcoords |
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; c2 - envmaptint |
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;------------------------------------------------------------------------------ |
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tex t0 ; base color |
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tex t1 ; cube map |
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tex t2 ; envmap mask |
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tex t3 ; detail texture |
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; version 1: applies the mod2x *after* environment map |
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;mul r0.rgb, t1, 1-t2.a ; can't use mad cause can't use 3 texture registers |
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;mul r0.rgb, c2, r0 ; apply the envmaptint |
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;mad r0.rgb, t0, v0, r0 |
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;+ mul r0.a, t0, v0 |
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;mul_x2 r0.rgb, r0, t3 ; mod2x detail texture |
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; version 2: applies the mod2x *before* environment map |
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mul r0, t0, v0 ; Base times modulation color |
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mul_x2 r0.rgb, r0, t3 ; mod2x detail texture |
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mul r1, t1, 1-t2.a ; Have to invert the alpha for basealpha (feh!) |
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mul r1, c2, r1 ; apply the envmaptint |
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add r0.rgb, r0, r1 ; add in the envmap
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