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Port BuildSmoothingGroups from ZDray

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RaveYard 2023-09-02 16:49:37 +02:00 committed by Christoph Oelckers
parent 3c0b8ccc14
commit 3b0f19a57f
2 changed files with 48 additions and 11 deletions
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47
src/common/rendering/hwrenderer/data/hw_levelmesh.h
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@ -56,6 +56,8 @@ struct LevelMeshSurface
// Required for internal lightmapper:
//
int sectorGroup = 0;
BBox bounds;
int sampleDimension = 0;
@ -183,4 +185,49 @@ public:
FVector3 end = start + direction * std::max(maxDist - 10.0f, 0.0f);
return !TriangleMeshShape::find_any_hit(Collision.get(), start, end);
}
void BuildSmoothingGroups()
{
for (size_t i = 0, count = GetSurfaceCount(); i < count; i++)
{
auto surface = GetSurface(i);
// Is this surface in the same plane as an existing smoothing group?
int smoothingGroupIndex = -1;
for (size_t j = 0; j < SmoothingGroups.Size(); j++)
{
if (surface->sectorGroup == SmoothingGroups[j].sectorGroup)
{
float direction = std::abs((SmoothingGroups[j].plane.XYZ() | surface->plane.XYZ()));
if (direction >= 0.9999f && direction <= 1.001f)
{
auto point = (surface->plane.XYZ() * surface->plane.W);
auto planeDistance = (SmoothingGroups[j].plane.XYZ() | point) - SmoothingGroups[j].plane.W;
float dist = std::abs(planeDistance);
if (dist <= 0.01f)
{
smoothingGroupIndex = (int)j;
break;
}
}
}
}
// Surface is in a new plane. Create a smoothing group for it
if (smoothingGroupIndex == -1)
{
smoothingGroupIndex = SmoothingGroups.Size();
LevelMeshSmoothingGroup group;
group.plane = surface->plane;
group.sectorGroup = surface->sectorGroup;
SmoothingGroups.Push(group);
}
SmoothingGroups[smoothingGroupIndex].surfaces.push_back(surface);
surface->smoothingGroupIndex = smoothingGroupIndex;
}
}
};

12
src/rendering/hwrenderer/doom_levelmesh.cpp
View file

@ -627,17 +627,7 @@ void DoomLevelMesh::SetupLightmapUvs()
surface.texPixels.resize(surface.texWidth * surface.texHeight);
}
{
LevelMeshSmoothingGroup smoothing;
for (auto& surface : Surfaces)
{
surface.smoothingGroupIndex = 0;
smoothing.surfaces.push_back(&surface);
}
SmoothingGroups.Push(std::move(smoothing));
}
BuildSmoothingGroups();
std::sort(sortedSurfaces.begin(), sortedSurfaces.end(), [](LevelMeshSurface* a, LevelMeshSurface* b) { return a->texHeight != b->texHeight ? a->texHeight > b->texHeight : a->texWidth > b->texWidth; });