private void LoadFile(string fileName)
        {
            var objPath             = Path.GetFullPath(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "..\\..\\..\\", "examples", $"{fileName}.{FileExtensions.Object}"));
            var normalsPath         = Path.GetFullPath(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "..\\..\\..\\", "examples", $"{fileName}_{FileExtensions.Normal}.{FileExtensions.ImgType}"));
            var diffuseTexturePath  = Path.GetFullPath(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "..\\..\\..\\", "examples", $"{fileName}_{FileExtensions.Diffuse}.{FileExtensions.ImgType}"));
            var specularTexturePath = Path.GetFullPath(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "..\\..\\..\\", "examples", $"{fileName}_{FileExtensions.Specular}.{FileExtensions.ImgType}"));

            var parser = new ObjParser();

            parser.LoadObj(objPath);

            camera.Position = new Vector3(vm.XCameraPos, vm.YCameraPos, vm.ZCameraPos);
            camera.Target   = Vector3.Zero;

            mesh = new RenderObj(parser.VertexList.Count, parser.FaceList.Count, parser.NormalList.Count, parser.TextureList.Count);
            mesh.NormalTexture   = parser.LoadTexture(normalsPath);
            mesh.DiffuseTexture  = parser.LoadTexture(diffuseTexturePath);
            mesh.SpecularTexture = parser.LoadTexture(specularTexturePath);
            mesh.Position        = new Vector3(vm.XObjectPos, vm.YObjectPos, vm.ZObjectPos);

            for (var i = 0; i < parser.VertexList.Count; i++)
            {
                mesh.Vertices[i] = parser.VertexList[i].ToVector4();
            }

            mesh.Faces = parser.FaceList.ToArray();

            for (var i = 0; i < parser.NormalList.Count; i++)
            {
                mesh.Normals[i] = parser.NormalList[i].ToVector();
            }

            for (var i = 0; i < parser.TextureList.Count; i++)
            {
                mesh.TextureCoordinates[i] = parser.TextureList[i].ToVector();
            }

            UpdateAnimation();
        }