DatasmithMesh.h

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// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
 
#include "Math/Box.h"
#include "Math/Color.h"
#include "Math/Vector2D.h"
 
#include "Misc/SecureHash.h"
 
#define UE_API DATASMITHCORE_API
 
 
class FDatasmithMesh
{
public:
    UE_API FDatasmithMesh();
    UE_API ~FDatasmithMesh();
 
    UE_API FDatasmithMesh( const FDatasmithMesh& Other );
    UE_API FDatasmithMesh( FDatasmithMesh&& Other );
 
    UE_API FDatasmithMesh& operator=( const FDatasmithMesh& Other );
    UE_API FDatasmithMesh& operator=( FDatasmithMesh&& Other );
 
    // Calculate mesh data hash(doesn't include name)
    UE_API FMD5Hash CalculateHash() const;
 
    UE_API void SetName(const TCHAR* InName);
    UE_API const TCHAR* GetName() const;
 
    //--------------------------
    // Faces
    //--------------------------
    UE_API void SetFacesCount(int32 NumFaces);
 
    UE_API int32 GetFacesCount() const;
 
    UE_API void SetFace(int32 Index, int32 Vertex1, int32 Vertex2, int32 Vertex3, int32 MaterialId = 0);
    UE_API void GetFace(int32 Index, int32& Vertex1, int32& Vertex2, int32& Vertex3, int32& MaterialId) const;
 
    UE_API void SetFaceSmoothingMask(int32 Index, uint32 SmoothingMask);
 
    UE_API uint32 GetFaceSmoothingMask(int32 Index) const;
 
    UE_API int32 GetMaterialsCount() const;
    UE_API bool IsMaterialIdUsed(int32 MaterialId) const;
 
    //--------------------------
    // Vertices
    //--------------------------
    UE_API void SetVerticesCount(int32 NumVerts);
 
    UE_API int32 GetVerticesCount() const;
 
    UE_API void SetVertex(int32 Index, float X, float Y, float Z);
    UE_API FVector3f GetVertex(int32 Index) const;
 
    //--------------------------
    // Normals
    //--------------------------
    UE_API void SetNormal(int32 Index, float X, float Y, float Z);
    UE_API FVector3f GetNormal(int32 Index) const;
 
    //--------------------------
    // UVs
    //--------------------------
    UE_API void SetUVChannelsCount(int32 ChannelCount);
 
    UE_API void AddUVChannel();
 
    UE_API void RemoveUVChannel();
 
    UE_API int32 GetUVChannelsCount() const;
 
    UE_API void SetUVCount(int32 Channel, int32 NumVerts);
 
    UE_API int32 GetUVCount(int32 Channel) const;
 
    UE_API void SetUV(int32 Channel, int32 Index, double U, double V);
 
    UE_API uint32 GetHashForUVChannel(int32 Channel) const;
 
    UE_API FVector2D GetUV(int32 Channel, int32 Index) const;
 
    UE_API void SetFaceUV(int32 Index, int32 Channel, int32 Vertex1, int32 Vertex2, int32 Vertex3);
 
    UE_API void GetFaceUV(int32 Index, int32 Channel, int32& Vertex1, int32& Vertex2, int32& Vertex3) const;
 
    UE_API int32 GetVertexColorCount() const;
 
    UE_API void SetVertexColor(int32 Index, const FColor& Color);
 
    UE_API FColor GetVertexColor(int32 Index) const;
 
    UE_API void SetLightmapSourceUVChannel(int32 Channel);
 
    UE_API int32 GetLightmapSourceUVChannel() const;
 
    //--------------------------
    // LODs
    //--------------------------
 
    UE_API void AddLOD( const FDatasmithMesh& InLODMesh );
    UE_API void AddLOD( FDatasmithMesh&& InLODMesh );
    UE_API int32 GetLODsCount() const;
 
    UE_API FDatasmithMesh* GetLOD( int32 Index );
    UE_API const FDatasmithMesh* GetLOD( int32 Index ) const;
 
    //--------------------------
    // Misc
    //--------------------------
    UE_API float ComputeArea() const;
 
    UE_API FBox3f GetExtents() const;
 
private:
    class FDatasmithMeshImpl;
 
    FDatasmithMeshImpl* Impl;
};
 
#undef UE_API