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Enhance dumplevelmesh

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RaveYard 2023-09-04 01:09:09 +02:00 committed by Christoph Oelckers
parent 8515661b1a
commit 3bbfb673cb
2 changed files with 83 additions and 7 deletions
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88
src/rendering/hwrenderer/doom_levelmesh.cpp
View file

@ -14,7 +14,7 @@ CCMD(dumplevelmesh)
{
if (level.levelMesh)
{
level.levelMesh->DumpMesh(FString("levelmesh.obj"));
level.levelMesh->DumpMesh(FString("levelmesh.obj"), FString("levelmesh.mtl"));
Printf("Level mesh exported.");
}
else
@ -624,12 +624,13 @@ bool DoomLevelMesh::IsDegenerate(const FVector3 &v0, const FVector3 &v1, const F
return crosslengthsqr <= 1.e-6f;
}
void DoomLevelMesh::DumpMesh(const FString& filename) const
void DoomLevelMesh::DumpMesh(const FString& objFilename, const FString& mtlFilename) const
{
auto f = fopen(filename.GetChars(), "w");
auto f = fopen(objFilename.GetChars(), "w");
fprintf(f, "# DoomLevelMesh debug export\n");
fprintf(f, "# MeshVertices: %d, MeshElements: %d\n", MeshVertices.Size(), MeshElements.Size());
fprintf(f, "# MeshVertices: %u, MeshElements: %u, Surfaces: %u\n", MeshVertices.Size(), MeshElements.Size(), Surfaces.Size());
fprintf(f, "mtllib %s\n", mtlFilename.GetChars());
double scale = 1 / 10.0;
@ -645,9 +646,62 @@ void DoomLevelMesh::DumpMesh(const FString& filename) const
}
}
const auto s = MeshElements.Size();
for (unsigned i = 0; i + 2 < s; i += 3)
auto name = [](LevelMeshSurfaceType type) -> const char* {
switch (type)
{
case ST_CEILING:
return "ceiling";
case ST_FLOOR:
return "floor";
case ST_LOWERSIDE:
return "lowerside";
case ST_UPPERSIDE:
return "upperside";
case ST_MIDDLESIDE:
return "middleside";
case ST_UNKNOWN:
return "unknown";
default:
break;
}
return "error";
};
uint32_t lastSurfaceIndex = -1;
bool useErrorMaterial = false;
int highestUsedAtlasPage = -1;
for (unsigned i = 0, count = MeshElements.Size(); i + 2 < count; i += 3)
{
auto index = MeshSurfaceIndexes[i / 3];
if(index != lastSurfaceIndex)
{
lastSurfaceIndex = index;
if (unsigned(index) >= Surfaces.Size())
{
fprintf(f, "o Surface[%d] (bad index)\n", index);
fprintf(f, "usemtl error\n");
useErrorMaterial = true;
}
else
{
const auto& surface = Surfaces[index];
fprintf(f, "o Surface[%d] %s %d%s\n", index, name(surface.Type), surface.typeIndex, surface.bSky ? " sky" : "");
fprintf(f, "usemtl lightmap%d\n", surface.atlasPageIndex);
if (surface.atlasPageIndex > highestUsedAtlasPage)
{
highestUsedAtlasPage = surface.atlasPageIndex;
}
}
}
// fprintf(f, "f %d %d %d\n", MeshElements[i] + 1, MeshElements[i + 1] + 1, MeshElements[i + 2] + 1);
fprintf(f, "f %d/%d %d/%d %d/%d\n",
MeshElements[i + 0] + 1, MeshElements[i + 0] + 1,
@ -657,6 +711,28 @@ void DoomLevelMesh::DumpMesh(const FString& filename) const
}
fclose(f);
// material
f = fopen(mtlFilename.GetChars(), "w");
fprintf(f, "# DoomLevelMesh debug export\n");
if (useErrorMaterial)
{
fprintf(f, "# Surface indices that are referenced, but do not exists in the 'Surface' array\n");
fprintf(f, "newmtl error\nKa 1 0 0\nKd 1 0 0\nKs 1 0 0\n");
}
for (int page = 0; page <= highestUsedAtlasPage; ++page)
{
fprintf(f, "newmtl lightmap%d\n", page);
fprintf(f, "Ka 1 1 1\nKd 1 1 1\nKs 0 0 0\n");
fprintf(f, "map_Ka lightmap%d.png\n", page);
fprintf(f, "map_Kd lightmap%d.png\n", page);
}
fclose(f);
}
void DoomLevelMesh::SetupLightmapUvs()

2
src/rendering/hwrenderer/doom_levelmesh.h
View file

@ -48,7 +48,7 @@ public:
static_assert(alignof(FVector2) == alignof(float[2]) && sizeof(FVector2) == sizeof(float) * 2);
void DumpMesh(const FString& filename) const;
void DumpMesh(const FString& objFilename, const FString& mtlFilename) const;
void SetupLightmapUvs();