UVBarycentricMapping.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "dnacalib/types/Aliases.h"
#include "dnacalib/types/Triangle.h"
#include "dnacalib/types/BoundingBox.h"
 
namespace dnac {
 
 
class UVBarycentricMapping {
    public:
        using TrianglePositionIndicesPair = std::pair<Triangle, std::array<std::uint32_t, 3u> >;
        using BarycentricPositionIndicesPair = std::pair<fvec3, ConstArrayView<std::uint32_t> >;
 
    public:
        UVBarycentricMapping(const std::function<ConstArrayView<std::uint32_t>(std::uint32_t)>& faceGetter,
                             ConstArrayView<std::uint32_t> vertexPositionIndices,
                             ConstArrayView<std::uint32_t> textureCoordinateUVIndices,
                             ConstArrayView<float> Us,
                             ConstArrayView<float> Vs,
                             std::uint32_t faceCount,
                             MemoryResource* memRes);
 
        explicit UVBarycentricMapping(const dna::Reader* reader, std::uint16_t meshIndex, MemoryResource* memRes);
 
        ConstArrayView<TrianglePositionIndicesPair> getTriangles() const;
        ConstArrayView<BoundingBox> getBoundingBoxes() const;
 
        BarycentricPositionIndicesPair getBarycentric(const fvec2& uv) const;
 
    private:
        Vector<TrianglePositionIndicesPair> triangles;
        Vector<BoundingBox> bBoxes;
};
 
}  // namespace dnac