MRMesh/MRMeshLoadObj.h

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#pragma once
 
#include "MRMesh.h"
#include "MRMeshTexture.h"
#include "MRProgressCallback.h"
#include "MRExpected.h"
#include "MRMeshLoadSettings.h"
#include "MRAffineXf3.h"
#include "MRLoadedObjects.h"
#include <filesystem>
#include <istream>
#include <string>
 
namespace MR
{
 
namespace MeshLoad
{
 
 
struct ObjLoadSettings
{
    bool customXf = false;
 
    bool countSkippedFaces = false;
 
    ProgressCallback callback;
};
 
struct NamedMesh
{
    std::string name;
    Mesh mesh;
    VertUVCoords uvCoords;
    VertColors colors;
    Vector<std::filesystem::path, TextureId> textureFiles;
    Vector<TextureId, FaceId> texturePerFace;
    std::optional<Color> diffuseColor;
 
    AffineXf3f xf;
 
    int skippedFaceCount = 0;
 
    int duplicatedVertexCount = 0;
};
 
MRMESH_API Expected<std::vector<NamedMesh>> fromSceneObjFile( const std::filesystem::path& file, bool combineAllObjects,
                                                                           const ObjLoadSettings& settings = {} );
 
MRMESH_API Expected<std::vector<NamedMesh>> fromSceneObjFile( std::istream& in, bool combineAllObjects, const std::filesystem::path& dir,
                                                                           const ObjLoadSettings& settings = {} );
 
MRMESH_API Expected<std::vector<NamedMesh>> fromSceneObjFile( const char* data, size_t size, bool combineAllObjects, const std::filesystem::path& dir,
                                                                           const ObjLoadSettings& settings = {} );
 
MRMESH_API Expected<LoadedObjects> loadObjectFromObj( const std::filesystem::path& file, const ProgressCallback& cb = {} );
 
} // namespace MeshLoad
 
} // namespace MR