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diff --git a/libs/assimp/code/AssetLib/Obj/ObjFileParser.h b/libs/assimp/code/AssetLib/Obj/ObjFileParser.h
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+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2020, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+#ifndef OBJ_FILEPARSER_H_INC
+#define OBJ_FILEPARSER_H_INC
+
+#include <assimp/IOStreamBuffer.h>
+#include <assimp/material.h>
+#include <assimp/mesh.h>
+#include <assimp/vector2.h>
+#include <assimp/vector3.h>
+#include <map>
+#include <memory>
+#include <string>
+#include <vector>
+
+namespace Assimp {
+
+namespace ObjFile {
+struct Model;
+struct Object;
+struct Material;
+struct Point3;
+struct Point2;
+} // namespace ObjFile
+
+class ObjFileImporter;
+class IOSystem;
+class ProgressHandler;
+
+/// \class  ObjFileParser
+/// \brief  Parser for a obj waveform file
+class ASSIMP_API ObjFileParser {
+public:
+    static const size_t Buffersize = 4096;
+    typedef std::vector<char> DataArray;
+    typedef std::vector<char>::iterator DataArrayIt;
+    typedef std::vector<char>::const_iterator ConstDataArrayIt;
+
+    /// @brief  The default constructor.
+    ObjFileParser();
+    /// @brief  Constructor with data array.
+    ObjFileParser(IOStreamBuffer<char> &streamBuffer, const std::string &modelName, IOSystem *io, ProgressHandler *progress, const std::string &originalObjFileName);
+    /// @brief  Destructor
+    ~ObjFileParser();
+    /// @brief  If you want to load in-core data.
+    void setBuffer(std::vector<char> &buffer);
+    /// @brief  Model getter.
+    ObjFile::Model *GetModel() const;
+
+    ObjFileParser(const ObjFileParser&) = delete;
+    ObjFileParser &operator=(const ObjFileParser& ) = delete;
+
+protected:
+    /// Parse the loaded file
+    void parseFile(IOStreamBuffer<char> &streamBuffer);
+    /// Method to copy the new delimited word in the current line.
+    void copyNextWord(char *pBuffer, size_t length);
+    /// Method to copy the new line.
+    //    void copyNextLine(char *pBuffer, size_t length);
+    /// Get the number of components in a line.
+    size_t getNumComponentsInDataDefinition();
+    /// Stores the vector
+    size_t getTexCoordVector(std::vector<aiVector3D> &point3d_array);
+    /// Stores the following 3d vector.
+    void getVector3(std::vector<aiVector3D> &point3d_array);
+    /// Stores the following homogeneous vector as a 3D vector
+    void getHomogeneousVector3(std::vector<aiVector3D> &point3d_array);
+    /// Stores the following two 3d vectors on the line.
+    void getTwoVectors3(std::vector<aiVector3D> &point3d_array_a, std::vector<aiVector3D> &point3d_array_b);
+    /// Stores the following 3d vector.
+    void getVector2(std::vector<aiVector2D> &point2d_array);
+    /// Stores the following face.
+    void getFace(aiPrimitiveType type);
+    /// Reads the material description.
+    void getMaterialDesc();
+    /// Gets a comment.
+    void getComment();
+    /// Gets a a material library.
+    void getMaterialLib();
+    /// Creates a new material.
+    void getNewMaterial();
+    /// Gets the group name from file.
+    void getGroupName();
+    /// Gets the group number from file.
+    void getGroupNumber();
+    /// Gets the group number and resolution from file.
+    void getGroupNumberAndResolution();
+    /// Returns the index of the material. Is -1 if not material was found.
+    int getMaterialIndex(const std::string &strMaterialName);
+    /// Parse object name
+    void getObjectName();
+    /// Creates a new object.
+    void createObject(const std::string &strObjectName);
+    /// Creates a new mesh.
+    void createMesh(const std::string &meshName);
+    /// Returns true, if a new mesh instance must be created.
+    bool needsNewMesh(const std::string &rMaterialName);
+    /// Error report in token
+    void reportErrorTokenInFace();
+
+private:
+    // Copy and assignment constructor should be private
+    // because the class contains pointer to allocated memory
+
+    /// Default material name
+    static constexpr char DEFAULT_MATERIAL[] = AI_DEFAULT_MATERIAL_NAME;
+    //! Iterator to current position in buffer
+    DataArrayIt m_DataIt;
+    //! Iterator to end position of buffer
+    DataArrayIt m_DataItEnd;
+    //! Pointer to model instance
+    std::unique_ptr<ObjFile::Model> m_pModel;
+    //! Current line (for debugging)
+    unsigned int m_uiLine;
+    //! Helper buffer
+    char m_buffer[Buffersize];
+    /// Pointer to IO system instance.
+    IOSystem *m_pIO;
+    //! Pointer to progress handler
+    ProgressHandler *m_progress;
+    /// Path to the current model, name of the obj file where the buffer comes from
+    const std::string m_originalObjFileName;
+};
+
+} // Namespace Assimp
+
+#endif