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OpenGL2: Fix hack for tcMod transform on merged lightmaps

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When using merged lightmaps, only change tcMod transform for tcGen
lightmap.
This commit is contained in:
Zack Middleton 2024-02-10 14:50:35 -06:00
parent e3abcffeb0
commit 5d60f6035a
1 changed files with 7 additions and 5 deletions
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2
code/renderergl2/tr_shader.c
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@ -2946,6 +2946,7 @@ static void FixFatLightmapTexCoords(void)
if ( pStage->bundle[0].isLightmap ) { if ( pStage->bundle[0].isLightmap ) {
// fix tcMod transform for internal lightmaps, it may be used by q3map2 lightstyles // fix tcMod transform for internal lightmaps, it may be used by q3map2 lightstyles
if ( pStage->bundle[0].tcGen == TCGEN_LIGHTMAP ) {
for ( i = 0; i < pStage->bundle[0].numTexMods; i++ ) { for ( i = 0; i < pStage->bundle[0].numTexMods; i++ ) {
tmi = &pStage->bundle[0].texMods[i]; tmi = &pStage->bundle[0].texMods[i];
@ -2954,6 +2955,7 @@ static void FixFatLightmapTexCoords(void)
tmi->translate[1] /= (float)tr.fatLightmapRows; tmi->translate[1] /= (float)tr.fatLightmapRows;
} }
} }
}
// fix tcGen environment for internal lightmaps to be limited to the sub-image of the atlas // fix tcGen environment for internal lightmaps to be limited to the sub-image of the atlas
// this is done last so other tcMods are applied first in the 0.0 to 1.0 space // this is done last so other tcMods are applied first in the 0.0 to 1.0 space