etqw-sdk/base/renderprogs/interaction/foliage_fragment_fallback.inc

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2008-05-29 00:00:00 +00:00
OPTION ARB_precision_hint_fastest;
TEMP light, color, R1, R2, localNormal, specular;
# modulate by the light projection
TXP light, fragment.texcoord[3], $lightProjectionMap, 2D;
$ifdef enable_instdither
MUL R1.xy, fragment.position, 0.0625;
TEX R1, R1, $noiseMap, 2D;
SLT R1.w, fragment.texcoord[6].w, R1.w;
KIL -R1.w;
$endif
# modulate by the light falloff
TEX R1, fragment.texcoord[2], $lightFalloffMap, 2D;
MUL light, light, R1;
# modulate by the diffuse map and constant diffuse factor
TEX R1, fragment.texcoord[4], $diffuseMap, 2D;
MUL R1.rgb, R1, fragment.color;
MUL color, R1, $diffuseColor;
$ifdef alphatest_kill
TEMP _AR0;
SUB _AR0.a, R1.a, $alphaThresh;
KIL _AR0.a;
$endif
$ifdef alphatocoverage
TEMP _AR0;
SUB _AR0.a, R1.a, $alphaThresh;
KIL _AR0.a;
$endif
MUL color, light, color;
$ifdef ambient
MAD color, R1, $ambientAvgColor, color;
$endif
# modify by the vertex color
$if ( r_megaDrawMethod != 0 )
$ifdef amblit
LRP result.color.rgb, fragment.color.secondary.x, $fogColor, color;
$else
SUB R1.x, 1, fragment.color.secondary.x;
MUL result.color.rgb, color, R1.x;
$endif
$else
MOV result.color.rgb, color;
$endif
$ifdef alphatocoverage
MUL result.color.a, color.a, 1.5;
$else
MOV result.color.a, 1;
$endif