research(standalone): shape world -- 64 m full detail in 0.96 s, whole view in 2.27 s, cold; look not there

Owner's rooms, tunnels, passages, landings and strate shells compiled as shapes, solved along
lattice lines with packed signs; rock detail only in a band sized by its supremum; far levels from
the same shapes; multithreaded meshing. 8 workers, BelowNormal, affinity 0xFF00, zero cache hits:
  full detail (960 tiles): 669 ms shapes + 290 ms mesh = 0.959 s   (was 20.3 s)
  full clipmap (6,498 tiles): 870 ms + 1.398 s = 2.268 s           (was 170.6 s)
Checks: 5,642 passage centreline samples open; smoothed and per-voxel-noise variants both fail the
detail audit; same hash across runs and 1 vs 6 workers. V toggles owner field / shape world.
Look: 6-12% of lattice signs changed; captures show flat planes without detail (passage floor, a
wall band), telescoping tunnel segments, blocky stair patches. Not accepted as the owner's world yet.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MmSoF64BbRFmk9C3p1VsBJ

Standalone/Source/VoxelForge/Private/VoxelGenerator.cpp

@@ -6,6 +6,7 @@
 
 #include "VoxelGenerator.h"
 #include "StandaloneResearchTunnels.h"
+#include "StandaloneShapeWorld.h"
 #include "VoxelSettings.h"
 #include "VoxelStrateManager.h"
 #include "VoxelStrateDefinition.h"
@@ -2849,6 +2850,12 @@ bool UVoxelGenerator::EvaluateDensityChunk(
 float UVoxelGenerator::GetDensityAt(float WorldX, float WorldY, float WorldZ,
                                     float* OutPreEditDensity) const
 {
+    if (const FStandaloneShapeWorld* ShapeWorld=FStandaloneShapeWorldAccess::GetActive())
+    {
+        const float ShapeDensity=ShapeWorld->DensityAt(WorldX,WorldY,WorldZ);
+        if (OutPreEditDensity) *OutPreEditDensity=ShapeDensity;
+        return ShapeDensity;
+    }
 #if WITH_EDITOR
     // Step 2e and step 2d are separate editor-only, default-off side paths. The owner field stays
     // authoritative unless a research commandlet or automation test explicitly selects one.
@@ -6469,6 +6476,19 @@ EVoxelTileClass UVoxelGenerator::ClassifyTile(const FIntVector& OriginVoxels, in
     VoxelDensityProfile::AddCounter(
         VoxelDensityProfile::ECounter::TileClassifyCalls);
 
+    if (const FStandaloneShapeWorld* ShapeWorld=FStandaloneShapeWorldAccess::GetActive())
+    {
+        const EVoxelTileClass ShapeVerdict=ShapeWorld->ClassifyBox(
+            OriginVoxels,NormalizedStep,NormalizedCellsPerAxis);
+        if (ShapeVerdict==EVoxelTileClass::AllSolid)
+            VoxelDensityProfile::AddCounter(VoxelDensityProfile::ECounter::TileClassifyAllSolid);
+        else if (ShapeVerdict==EVoxelTileClass::AllAir)
+            VoxelDensityProfile::AddCounter(VoxelDensityProfile::ECounter::TileClassifyAllAir);
+        else
+            VoxelDensityProfile::AddCounter(VoxelDensityProfile::ECounter::TileClassifyMixed);
+        return ShapeVerdict;
+    }
+
 #if WITH_EDITOR
     // The ordinary tile classifier proves the live field's interval bounds. While the separate
     // research field is selected, decline those proofs until its own complete final-field interval