offscreen.h

/********************************************************************
 * Copyright (C) 2015 Liangliang Nan <liangliang.nan@gmail.com>
 * https://3d.bk.tudelft.nl/liangliang/
 *
 * This file is part of Easy3D. If it is useful in your research/work,
 * I would be grateful if you show your appreciation by citing it:
 * ------------------------------------------------------------------
 *      Liangliang Nan.
 *      Easy3D: a lightweight, easy-to-use, and efficient C++ library
 *      for processing and rendering 3D data.
 *      Journal of Open Source Software, 6(64), 3255, 2021.
 * ------------------------------------------------------------------
 *
 * Easy3D is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License Version 3
 * as published by the Free Software Foundation.
 *
 * Easy3D is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 ********************************************************************/
 
#ifndef EASY3D_VIEWER_OFFSCREEN_H
#define EASY3D_VIEWER_OFFSCREEN_H
 
#include <memory>
#include <easy3d/viewer/viewer.h>
 
 
namespace easy3d {

    class OffScreen : protected Viewer
    {
    public:
        explicit OffScreen(int width = 800, int height = 600);



        Camera* camera();
        const Camera* camera() const;

        bool render(const std::string& file_name, float scaling = 1.0f, int samples = 4, int back_ground = 1, bool expand = true) const;
 



        void resize(int w, int h);

        int width() const;
        int height() const;

        void set_background_color(const easy3d::vec4& color);

        const easy3d::vec4& background_color() const;



        virtual Model* add_model(const std::string& file_name, bool create_default_drawables = true);

        Model* add_model(std::shared_ptr<Model> model, bool create_default_drawables = true);

        bool delete_model(Model* model);

        const std::vector< std::shared_ptr<Model> >& models() const;

        Model* current_model() const;



        Drawable* add_drawable(std::shared_ptr<Drawable> drawable);

        bool delete_drawable(Drawable* drawable);

        const std::vector<std::shared_ptr<Drawable> >& drawables() const;

        void clear_scene();
    };
 
}
 
 
#endif  // EASY3D_VIEWER_OFFSCREEN_H