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fix vertex lights being broken on lightmapped surfaces for styled lights

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Explanation:
Comes from that whole duality of lightmap coordinates for bsp and internal use. Internal always uses index (lightmapnum) 0 for the raw lightmap. The concrete final lightmap coordinates are only calculated and stored when saving the bsp and kept separate. For internal use, all other indices are never inited. Vertex light code tried to use the uninited raw lightmap coordinates with lightmapNum > 0, so just got either zeros or garbage for them for anything except the base lightmap/style 0.
This commit is contained in:
Tom
2025-07-14 19:32:19 +02:00
parent acec987852
commit a86bce515b
1 changed files with 2 additions and 2 deletions
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tools/quake3/q3map2/light_ydnar.cpp
+2 -2
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@@ -3230,8 +3230,8 @@ void IlluminateVertexes( int num ){
}
/* get luxel coords */
x = std::clamp( int( verts[ i ].lightmap[ lightmapNum ][ 0 ] ), 0, lm->sw - 1 );
y = std::clamp( int( verts[ i ].lightmap[ lightmapNum ][ 1 ] ), 0, lm->sh - 1 );
x = std::clamp( int( verts[ i ].lightmap[ 0 ][ 0 ] ), 0, lm->sw - 1 );
y = std::clamp( int( verts[ i ].lightmap[ 0 ][ 1 ] ), 0, lm->sh - 1 );
/* get vertex luxels */
Vector3& vertLuxel = getVertexLuxel( lightmapNum, ds->firstVert + i );