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>
36 lines
1.4 KiB
C++
36 lines
1.4 KiB
C++
// Copyright IHY.
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#pragma once
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#include "CoreMinimal.h"
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#include "OptimizerTypes.h"
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#include "OptimizerGeometry.h"
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/**
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* Recovered rigid (optionally mirrored/scaled) delta that maps CANONICAL-local geometry onto
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* MEMBER(sibling)-local geometry. Stored as a UE row-vector matrix: v_member = v_canon * CanonToMember.
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* This is exactly the D in the corrective formula W' = D * W.
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*/
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struct FOptDelta
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{
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bool bValid = false;
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bool bIdentity = false; // delta is (within tolerance) identity -> swap mesh, keep transform
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bool bMirrored = false; // recovered rotation is improper (det < 0) -> negative-scale instance
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bool bScaled = false; // uniform scale != 1 folded in
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double Scale = 1.0;
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double MaxDev = 0.0; // worst per-vertex deviation under the delta, cm
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double Rms = 0.0;
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FMatrix CanonToMember = FMatrix::Identity;
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};
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namespace OptimizerMatcher
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{
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/** Cheap bucket test: are these two fingerprints compatible enough to attempt recovery? */
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bool FingerprintCompatible(const FOptMeshGeom& A, const FOptMeshGeom& B, const FOptimizerScanSettings& Settings);
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/**
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* Recover the delta mapping canonical-local (A) onto member-local (B). Both A.Positions and
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* B.Positions must be populated. Returns false if no candidate passes verification.
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*/
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bool RecoverDelta(const FOptMeshGeom& A, const FOptMeshGeom& B, const FOptimizerScanSettings& Settings, FOptDelta& Out);
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}
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