67 lines
1.5 KiB
PHP
67 lines
1.5 KiB
PHP
OPTION ARB_precision_hint_fastest;
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TEMP R8;
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$include "megatexture/mt_common_fragment.inc"
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TEMP SUNDP;
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# Sample ambient cube map using texcoord unpacked from color register
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DP3_SAT SUNDP, fragment.texcoord[5], $sunDirectionWorld;
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TEX R7, R7, $ambientCubeMap, CUBE;
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MUL R7, R7, $ambientBrightness;
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$if r_skipDiffuse
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MOV combined.rgb, 1;
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$endif
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$ifndef premult
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$if !r_skipBump
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SUB SUNDP, combined.a, SUNDP;
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ADD SUNDP, SUNDP, 1;
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MAX SUNDP, SUNDP, 0;
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MUL combined, combined, SUNDP;
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$endif
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$endif
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$ifdef bakedamb
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TEMP LIGHTINFO;
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MUL LIGHTINFO, SUNDP, combined;
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MUL LIGHTINFO, LIGHTINFO, $parameters.z; #0.75;
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SUB_SAT combined, combined, LIGHTINFO;
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$else
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MUL combined, combined, R7;
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$endif
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#final stuffs
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$ifdef brightness
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MUL combined.xyz, combined, $parameters.x;
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$endif
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$ifdef megatexSpecular
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MOV R2.xyz, $sunDirection;
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DP3 R1.w, fragment.texcoord[4], fragment.texcoord[4];
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RSQ R1.w, R1.w;
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MUL R3.xyz, fragment.texcoord[4], R1.w;
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ADD R1, R2, R3;
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DP3 R1.w, R1, R1;
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RSQ R1.w, R1.w;
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MUL R1.xyz, R1, R1.w;
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DP3 R1.w, R1, fragment.texcoord[5];
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MUL R1.w, R1.w, R1.w;
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MUL R1.w, R1.w, R1.w;
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TEMP SPECMASK;
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TEX SPECMASK, fragment.texcoord[7], $mask, 2D;
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MUL R1.w, R1.w, SPECMASK.x;
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ADD R1.w, 1, R1.wwww;
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MUL combined, combined, $ambientScale.x;
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MUL result.color.xyz, combined, R1.w;
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$else
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MUL result.color.xyz, combined, $ambientScale.x;
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$endif
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MOV result.color.a, $ambientScale.z;
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