GeometryCollectionEngineUtility.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
 
class FGeometryCollection;
class UGeometryCollectionCache;
class USkeletalMesh;
 
namespace GeometryCollectionEngineUtility
{
    void GEOMETRYCOLLECTIONENGINE_API PrintDetailedStatistics(const FGeometryCollection* GeometryCollection, const UGeometryCollectionCache* InCache);
 
    void GEOMETRYCOLLECTIONENGINE_API PrintDetailedStatisticsSummary(const TArray<const FGeometryCollection*> GeometryCollectionArray);
 
    void GEOMETRYCOLLECTIONENGINE_API ComputeNormals(FGeometryCollection* GeometryCollection);
 
    void GEOMETRYCOLLECTIONENGINE_API ComputeTangents(FGeometryCollection* GeometryCollection);
 
    /***
    * Generate a vertex to component map that defines the disjoint geometries.
    * @param IndexBuffer            Input flat index of triangles
    * @param ComponentIndices       Output list of triangle indices by component
    * @param TriangleComponentMap   Output Component remapping for triangles
    * @param VertexComponentMap     Output Component remapping for vertices
    * @param TriangleCount          Output Sum of the triangles in the Components
    * @param VertexCount            Output Num of vertices in the Components
    * @return If the remapping was valid.
    */
    void
    GEOMETRYCOLLECTIONENGINE_API
    GenerateConnectedComponents(const USkeletalMesh* InSkeletalMesh, 
        TArray<TArray<FIntVector>>& ComponentIndices,
        TArray<TArray<FIntVector2>>& TrangleComponentMap, 
        TArray<int32>& VertexComponentMap, 
        int32& TriangleCount, int32& VertexCount);
}