MeshDescriptionToDynamicMesh.h

Go to the documentation of this file.

// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Containers/Array.h"
#include "CoreMinimal.h"
#include "DynamicMesh/DynamicMesh3.h"
#include "GeometryBase.h"
#include "MeshDescription.h"
#include "MeshTypes.h"
 
// predeclare tangents template
PREDECLARE_GEOMETRY(template<typename RealType> class TMeshTangents);
namespace UE { namespace Geometry { class FDynamicMesh3; } }
struct FMeshDescription;
 
using UE::Geometry::FDynamicMesh3;
 
class FMeshDescriptionToDynamicMesh
{
public:
    bool bPrintDebugMessages = false;
 
    bool bEnableOutputGroups = true;
 
    bool bCalculateMaps = true;
 
    bool bDisableAttributes = false;
 
    bool bTransformVertexColorsLinearToSRGB = true;
 
    bool bUseCompactedPolygonGroupIDValues = false;
 
    void SetPolygonGroupToMaterialIndexMap(const TArray<int32>& PolygonGroupToMaterialIndexMapIn)
    {
        PolygonGroupToMaterialIndexMap = PolygonGroupToMaterialIndexMapIn;
    }
 
    TArray<FTriangleID> TriIDMap;
 
    TArray<FVertexID> VertIDMap;
 
 
    bool bVIDsFromNonManifoldMeshDescriptionAttr = false;
 
 
    enum class EPrimaryGroupMode
    {
        SetToZero,
        SetToPolygonID,
        SetToPolygonGroupID,
        SetToPolyGroup
    };
    EPrimaryGroupMode GroupMode = EPrimaryGroupMode::SetToPolyGroup;
 
 
    MESHCONVERSION_API void Convert(const FMeshDescription* MeshIn, FDynamicMesh3& MeshOut, bool bCopyTangents = false);
 
    MESHCONVERSION_API void CopyTangents(const FMeshDescription* SourceMesh, const FDynamicMesh3* TargetMesh, UE::Geometry::TMeshTangents<float>* TangentsOut);
 
    MESHCONVERSION_API void CopyTangents(const FMeshDescription* SourceMesh, const FDynamicMesh3* TargetMesh, UE::Geometry::TMeshTangents<double>* TangentsOut);
 
protected:
    MESHCONVERSION_API void ApplyVertexColorTransform(FVector4f& Color) const;
 
private:
 
    TArray<int32> PolygonGroupToMaterialIndexMap;
};