Bonchellon
a95b299680
Editor plugin that detects geometrically-identical sibling StaticMeshes across a level, rebases each placement onto one canonical mesh with a corrected transform (W' = D * W, verified by exact vertex matching), and can collapse groups into HISM. Native Slate tool panel + BlueprintCallable UOptimizerSubsystem. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
41 lines
1.3 KiB
C++
41 lines
1.3 KiB
C++
// Copyright IHY.
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#include "OptimizerReconciler.h"
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namespace OptimizerReconciler
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{
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bool ComputeCorrectedWorld(
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const FMatrix& CanonToMember,
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const FTransform& W,
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const FBox& CanonLocalBounds,
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double ShearTol,
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FTransform& OutWprime,
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double& OutMaxCornerDev)
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{
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// Exact corrected world matrix: apply D first (canon-local -> sibling-local), then W.
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const FMatrix Exact = CanonToMember * W.ToMatrixWithScale();
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OutWprime.SetFromMatrix(Exact);
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// Compare the FTransform reconstruction against the exact matrix at the canonical bbox corners.
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// Any gap means the exact matrix had shear that FTransform discarded -> not representable.
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const FVector Mn = CanonLocalBounds.Min;
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const FVector Mx = CanonLocalBounds.Max;
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const FVector Corners[8] =
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{
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FVector(Mn.X, Mn.Y, Mn.Z), FVector(Mx.X, Mn.Y, Mn.Z),
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FVector(Mn.X, Mx.Y, Mn.Z), FVector(Mx.X, Mx.Y, Mn.Z),
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FVector(Mn.X, Mn.Y, Mx.Z), FVector(Mx.X, Mn.Y, Mx.Z),
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FVector(Mn.X, Mx.Y, Mx.Z), FVector(Mx.X, Mx.Y, Mx.Z)
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};
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double MaxDev = 0.0;
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for (const FVector& C : Corners)
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{
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const FVector ExactPt = Exact.TransformPosition(C);
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const FVector ViaTransform = OutWprime.TransformPosition(C);
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MaxDev = FMath::Max(MaxDev, FVector::Dist(ExactPt, ViaTransform));
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}
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OutMaxCornerDev = MaxDev;
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return MaxDev <= ShearTol;
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}
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}
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