112 lines
3.3 KiB
C++
112 lines
3.3 KiB
C++
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// This code is in the public domain -- castano@gmail.com
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#pragma once
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#ifndef NV_MESH_ATLASBUILDER_H
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#define NV_MESH_ATLASBUILDER_H
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#include "Atlas.h"
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#include "nvmath/Vector.h"
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#include "nvmath/Random.h"
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#include "nvmesh/nvmesh.h"
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#include "nvcore/Array.h"
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#include "nvcore/BitArray.h"
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namespace nv
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{
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namespace HalfEdge { class Mesh; }
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struct ChartBuildData;
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struct AtlasBuilder
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{
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AtlasBuilder(const HalfEdge::Mesh * m);
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~AtlasBuilder();
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void markUnchartedFaces(const Array<uint> & unchartedFaces);
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void computeShortestPaths();
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void placeSeeds(float threshold, uint maxSeedCount);
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void createRandomChart(float threshold);
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void addFaceToChart(ChartBuildData * chart, uint f, bool recomputeProxy=false);
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bool growCharts(float threshold, uint faceCount);
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bool growChart(ChartBuildData * chart, float threshold, uint faceCount);
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void resetCharts();
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void updateCandidates(ChartBuildData * chart, uint face);
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void updateProxies();
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void updateProxy(ChartBuildData * chart);
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bool relocateSeeds();
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bool relocateSeed(ChartBuildData * chart);
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void updatePriorities(ChartBuildData * chart);
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float evaluatePriority(ChartBuildData * chart, uint face);
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float evaluateProxyFitMetric(ChartBuildData * chart, uint face);
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float evaluateDistanceToBoundary(ChartBuildData * chart, uint face);
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float evaluateDistanceToSeed(ChartBuildData * chart, uint face);
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float evaluateRoundnessMetric(ChartBuildData * chart, uint face, float newBoundaryLength, float newChartArea);
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float evaluateStraightnessMetric(ChartBuildData * chart, uint face);
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float evaluateNormalSeamMetric(ChartBuildData * chart, uint f);
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float evaluateTextureSeamMetric(ChartBuildData * chart, uint f);
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float evaluateSeamMetric(ChartBuildData * chart, uint f);
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float evaluateChartArea(ChartBuildData * chart, uint f);
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float evaluateBoundaryLength(ChartBuildData * chart, uint f);
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Vector3 evaluateChartNormalSum(ChartBuildData * chart, uint f);
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Vector3 evaluateChartCentroidSum(ChartBuildData * chart, uint f);
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Vector3 computeChartCentroid(const ChartBuildData * chart);
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void fillHoles(float threshold);
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void mergeCharts();
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// @@ Cleanup.
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struct Candidate {
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uint face;
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ChartBuildData * chart;
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float metric;
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};
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const Candidate & getBestCandidate() const;
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void removeCandidate(uint f);
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void updateCandidate(ChartBuildData * chart, uint f, float metric);
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void mergeChart(ChartBuildData * owner, ChartBuildData * chart, float sharedBoundaryLength);
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uint chartCount() const { return chartArray.count(); }
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const Array<uint> & chartFaces(uint i) const;
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const HalfEdge::Mesh * mesh;
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uint facesLeft;
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Array<int> faceChartArray;
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Array<ChartBuildData *> chartArray;
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Array<float> shortestPaths;
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Array<float> edgeLengths;
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Array<float> faceAreas;
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Array<Candidate> candidateArray; //
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Array<uint> faceCandidateArray; // Map face index to candidate index.
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MTRand rand;
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SegmentationSettings settings;
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};
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} // nv namespace
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#endif // NV_MESH_ATLASBUILDER_H
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