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Fix missing lightmap on decals

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Magnus Norddahl 2024-01-17 20:24:24 +01:00
commit 4341f1da27
1 changed files with 22 additions and 0 deletions
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22
src/rendering/hwrenderer/scene/hw_decal.cpp
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@ -349,6 +349,28 @@ void HWWall::ProcessDecal(HWDrawInfo *di, FRenderState& state, DBaseDecal *decal
float tlolft = ztop[0] != zbottom[0] ? (dv[LL].z - zbottom[0]) / (ztop[0] - zbottom[0]) : 0.0f;
float tlorgt = ztop[1] != zbottom[1] ? (dv[LR].z - zbottom[1]) / (ztop[1] - zbottom[1]) : 0.0f;
if (surface && surface->LightmapTileIndex >= 0)
{
LightmapTile* tile = &surface->Submesh->LightmapTiles[surface->LightmapTileIndex];
FVector2 lolft = tile->ToUV(FVector3(glseg.x1, glseg.y1, zbottom[0]), surface->Submesh->LMTextureSize);
FVector2 uplft = tile->ToUV(FVector3(glseg.x1, glseg.y1, ztop[0]), surface->Submesh->LMTextureSize);
FVector2 uprgt = tile->ToUV(FVector3(glseg.x2, glseg.y2, ztop[1]), surface->Submesh->LMTextureSize);
FVector2 lorgt = tile->ToUV(FVector3(glseg.x2, glseg.y2, zbottom[1]), surface->Submesh->LMTextureSize);
lightuv[LOLFT] = { lolft.X, lolft.Y };
lightuv[UPLFT] = { uplft.X, uplft.Y };
lightuv[UPRGT] = { uprgt.X, uprgt.Y };
lightuv[LORGT] = { lorgt.X, lorgt.Y };
lindex = (float)tile->AtlasLocation.ArrayIndex;
}
else
{
lightuv[LOLFT] = { 0.0f, 0.0f };
lightuv[UPLFT] = { 0.0f, 0.0f };
lightuv[UPRGT] = { 0.0f, 0.0f };
lightuv[LORGT] = { 0.0f, 0.0f };
lindex = -1.0f;
}
dv[LL].lu = mix(lightuv[LOLFT].u, lightuv[LORGT].u, tleft);
dv[LR].lu = mix(lightuv[LOLFT].u, lightuv[LORGT].u, tright);
dv[UL].lu = mix(lightuv[UPLFT].u, lightuv[UPRGT].u, tleft);