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standalone: VoxelForgeCore library -- the fast generator behind a clean C++20 API, output unchanged

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- Standalone/Core: public header VoxelForgeCore.h (no Unreal types), static library target,
  ResolvedWorldSnapshot (from the schema-v1 JSON), World (compile, generateTile, density/sign,
  point/segment solid, classifyBox), host-supplied JobScheduler (the core starts no threads),
  sequenced, idempotent EditTransaction returning affected tiles per LOD.
- The viewer, benchmarks, edits and audits run on Core; StreamingWorld stays host code.
- Same as round 11: 11 hash rows at W1 and W8, routes 5642/5642, look/passage/far audits pass,
  bad-shell control fails, six fixed captures byte-identical; cold W8 1.025 s vs 1.041 s reference.
- SHARED_CPP_LIBRARY_PLAN.md rewritten for a UBT module compiling the same sources via shims.
Open issue before Unreal: Core's implementation still compiles the Compat stand-ins named like
Unreal types (TArray, FVector...); inside a UE binary that is an ODR clash. Must be namespaced.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MmSoF64BbRFmk9C3p1VsBJ
This commit is contained in:
Fr0zkaandClaude Opus 5.5 committed 2026-10-05 11:39:02 +02:00
1 parent 631dd57eb4
commit 557f6aac30
22 files changed
+6185 -5063
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Standalone/Source/VoxelForge/Private/VoxelMarchingCubesMesher.cpp
+28 -13
View File
@@ -563,9 +563,19 @@ FVoxelMeshData UVoxelMarchingCubesMesher::GenerateMesh(FIntVector OriginVoxels,
{
VoxelDensityProfile::RecordClassifierCall(bSampleClassifier);
}
const EVoxelTileClass Verdict = Generator->ClassifyTile(
BlockOrigin, Step, BlockCells,
bSampleClassifier ? &ClassifierStats : nullptr);
EVoxelTileClass Verdict;
if(ShapeWorldContext)
{
const auto ShapeVerdict=ShapeWorldContext->ClassifyBox(
BlockOrigin,Step,BlockCells);
Verdict=ShapeVerdict==EVoxelTileClass::AllSolid
?EVoxelTileClass::AllSolid
:ShapeVerdict==EVoxelTileClass::AllAir
?EVoxelTileClass::AllAir:EVoxelTileClass::Mixed;
}
else
Verdict=Generator->ClassifyTile(BlockOrigin,Step,BlockCells,
bSampleClassifier ? &ClassifierStats : nullptr);
if (bSampleClassifier)
{
VoxelDensityProfile::AddSampledMeasurement(
@@ -700,10 +710,13 @@ FVoxelMeshData UVoxelMarchingCubesMesher::GenerateMesh(FIntVector OriginVoxels,
{
for (int32 X = 0; X <= BlockCells; ++X)
{
const float Density = Generator->GetDensityAt(
BlockOrigin.X + X * Step,
BlockOrigin.Y + Y * Step,
BlockOrigin.Z + Z * Step);
const float Density = ShapeWorldContext
?ShapeWorldContext->DensityAt(
static_cast<float>(BlockOrigin.X+X*Step),
static_cast<float>(BlockOrigin.Y+Y*Step),
static_cast<float>(BlockOrigin.Z+Z*Step))
:Generator->GetDensityAt(BlockOrigin.X+X*Step,
BlockOrigin.Y+Y*Step,BlockOrigin.Z+Z*Step);
if (!VoxelMath::IsFinite(Density) || Density == 0.0f)
{
bAllSolid = false;
@@ -1003,11 +1016,13 @@ FVoxelMeshData UVoxelMarchingCubesMesher::GenerateMesh(FIntVector OriginVoxels,
((ReachBlockZ * ReachBlocksPerAxis) + ReachBlockY)
* ReachBlocksPerAxis + ReachBlockX;
float PreEditDensity = 0.0f;
DensityGrid[LocalIndex] = Generator->GetDensityAtLattice(
OriginVoxels.X + gx * Step,
OriginVoxels.Y + gy * Step,
OriginVoxels.Z + gz * Step,
bCapturePreEditGrid ? &PreEditDensity : nullptr);
const int32 SampleX=OriginVoxels.X+gx*Step;
const int32 SampleY=OriginVoxels.Y+gy*Step;
const int32 SampleZ=OriginVoxels.Z+gz*Step;
DensityGrid[LocalIndex] = ShapeWorldContext
?ShapeWorldContext->DensityAtLattice(SampleX,SampleY,SampleZ)
:Generator->GetDensityAtLattice(SampleX,SampleY,SampleZ,
bCapturePreEditGrid ? &PreEditDensity : nullptr);
if (bCapturePreEditGrid)
{
OutPreEditDensityGrid->Samples[LocalIndex] = PreEditDensity;
@@ -1024,7 +1039,7 @@ FVoxelMeshData UVoxelMarchingCubesMesher::GenerateMesh(FIntVector OriginVoxels,
// lower overhead when a tile spans only one room-graph region.
const int64 TileExtentVoxels = static_cast<int64>(Step) * CellsPerAxis;
const bool bUseVerticalCacheTraversal = TileExtentVoxels > CHUNK_SIZE * 16;
const FStandaloneShapeWorld* ActiveShapeWorld=FStandaloneShapeWorldAccess::GetActive();
const FStandaloneShapeWorld* ActiveShapeWorld=ShapeWorldContext;
const bool bUseShapeWorldXBatch=ActiveShapeWorld!=nullptr
&&!bUseSharedDensityGrid&&!bCapturePreEditGrid;
if (bUseVerticalCacheTraversal)