58 lines
1.6 KiB
C++
58 lines
1.6 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "MeshDetails.h"
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#include "GraphicsDefs.h"
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#define UE_API TEXTUREGRAPHENGINE_API
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class MeshDetails_Tri : public MeshDetails
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{
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public:
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struct Triangle
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{
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FBox bounds;
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FBox uvBounds;
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Vector3 normal;
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Vector3 tangent;
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Vector3 biTangent;
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float distance;
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Vector3 centre;
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int32 indices[3];
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Triangle(int32 i0, int32 i1, int32 i2);
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bool HasIndex(int32 i);
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std::array<int32, 2> GetOtherVertices(int32 vi) const;
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};
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protected:
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static UE_API const size_t s_maxBatch;
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Triangle* _triangles = nullptr; /// The triangles that we have
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size_t _numTriangles = 0; /// How many triangles do we have
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RawBufferPtr _raw; /// The triangle buffer is indexed into this RawBuffer
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UE_API virtual void CalculateTri(size_t ti) override;
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public:
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UE_API MeshDetails_Tri(MeshInfo* mesh);
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UE_API virtual ~MeshDetails_Tri();
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UE_API virtual MeshDetailsPAsync Calculate() override;
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UE_API int32* GetIndices(size_t ti) const;
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UE_API std::array<Vector3, 3> GetVertices(size_t ti) const;
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UE_API std::array<Vector2, 3> GetUVs(size_t ti) const;
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UE_API std::array<Vector3, 3> GetNormals(size_t ti) const;
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UE_API std::array<Tangent, 3> GetTangents(size_t ti) const;
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//////////////////////////////////////////////////////////////////////////
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/// Inline functions
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//////////////////////////////////////////////////////////////////////////
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FORCEINLINE Triangle* Triangles() const { return _triangles; }
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FORCEINLINE size_t NumTriangles() const { return _numTriangles; }
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};
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#undef UE_API
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