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		std::vector<int> tex_idx;
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		std::vector<int> tex_idx;
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		/// Vector of materials
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		/// Vector of materials
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		std::vector<Material> materials;
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		std::vector<Material> materials;
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    /// Vector of triangle face areas
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    std::vector<float> face_areas;
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    /// Tabulated cumulative distribution function for sampling triangles according to area
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    std::vector<float> face_area_cdf;
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    /// Total surface area of the triangle mesh
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    float surface_area;
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		// -------- FUNCTIONS -----------
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		// -------- FUNCTIONS -----------
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		/// Get an axis aligned bounding box for the model.
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		/// Get an axis aligned bounding box for the model.
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		bool get_bbox(CGLA::Vec3f& p0, CGLA::Vec3f& p7) const;
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		bool get_bbox(CGLA::Vec3f& p0, CGLA::Vec3f& p7) const;
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		int find_material(const std::string&) const;
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		int find_material(const std::string&) const;
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		/// Compute normals for the mesh. Does not check if there are normals.
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		/// Compute normals for the mesh. Does not check if there are normals.
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		void compute_normals();
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		void compute_normals();
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    /// Compute areas for all faces and total surface area.
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    void compute_areas();
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    /// Apply a transformation matrix to the mesh
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    /// Apply a transformation matrix to the mesh
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    void transform(CGLA::Mat4x4f m);
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    void transform(CGLA::Mat4x4f m);
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	};
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	};
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