C3DSScene.h

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/* +---------------------------------------------------------------------------+
   |                     Mobile Robot Programming Toolkit (MRPT)               |
   |                          http://www.mrpt.org/                             |
   |                                                                           |
   | Copyright (c) 2005-2017, Individual contributors, see AUTHORS file        |
   | See: http://www.mrpt.org/Authors - All rights reserved.                   |
   | Released under BSD License. See details in http://www.mrpt.org/License    |
   +---------------------------------------------------------------------------+ */
#ifndef opengl_C3DSScene_H
#define opengl_C3DSScene_H

#include <mrpt/opengl/CRenderizableDisplayList.h>
#include <mrpt/opengl/COpenGLScene.h>
#include <mrpt/utils/CMemoryChunk.h>
#include <memory>

namespace mrpt
{
        namespace opengl
        {
                // This must be added to any CSerializable derived class:
                DEFINE_SERIALIZABLE_PRE_CUSTOM_BASE_LINKAGE( C3DSScene, CRenderizableDisplayList, OPENGL_IMPEXP )

                /** This element keeps a set of objects imported from a 3DStudio file (.3ds).
                  *  This class uses the opensource library <a href="http://lib3ds.sourceforge.net/" >lib3ds</a> internally.
                  *  \sa opengl::COpenGLScene
                  * \ingroup mrpt_opengl_grp
                  */
                class OPENGL_IMPEXP C3DSScene : public CRenderizableDisplayList
                {
                        DEFINE_SERIALIZABLE( C3DSScene )


                public:

                        /** Render child objects.
                          */
                        void  render_dl() const MRPT_OVERRIDE;

                        /** Evaluates the bounding box of this object (including possible children) in the coordinate frame of the object parent. */
                        void getBoundingBox(mrpt::math::TPoint3D &bb_min, mrpt::math::TPoint3D &bb_max) const MRPT_OVERRIDE;

                        /**  Loads a scene from a 3DS file (3D Studio format) into this object, from either plain .3ds format, or in gzip compressed .3ds.gz format.
                          *    Previous contents are lost.
                          *    If the file ends in ".gz", it'll be automatically decompressed using gzip (see mrpt::compress::zip).
                          */
                        void loadFrom3DSFile( const std::string &file_name );

                        /** Initializes all textures in the scene (See opengl::CTexturedPlane::loadTextureInOpenGL)
                          */
                        void  initializeAllTextures();

                        /** Empty the object */
                        void   clear();

                        /** Evaluates the scene at a given animation time
                          */
                        void evaluateAnimation( double time_anim );

                        /** Enables an extra ambient light */
                        void enableExtraAmbientLight(bool enable=true) { m_enable_extra_lighting=enable; CRenderizableDisplayList::notifyChange(); }

                        /* Simulation of ray-trace. */
                        bool traceRay(const mrpt::poses::CPose3D &o,double &dist) const MRPT_OVERRIDE;

                private:
                        /** Default constructor
                          */
                        C3DSScene( );

                        /** Private, virtual destructor: only can be deleted from smart pointers */
                        virtual ~C3DSScene();

                        /** A container for automatic deletion of lib3ds's scene when the last reference of the smart_ptr's is destroyed.
                          */
                        struct TImpl3DS
                        {
                                TImpl3DS();
                                ~TImpl3DS();
                                void    *file;  //!< Lib3dsFile*
                        };

                        /** An internal pointer to the lib3ds library's object of type "Lib3dsFile"
                          */
                        std::shared_ptr<TImpl3DS>       m_3dsfile;

                        /** Scale of the object */
                        //double        m_scale_x,m_scale_y,m_scale_z;
                        mrpt::math::TPoint3D   m_bbox_min, m_bbox_max; //!< Bounding box

                        bool    m_enable_extra_lighting;

                        //float m_light_cons_attenuation;               //!< OpenGL Light attenuation factor (default=1.0)
                        //float m_light_lin_attenuation;                //!< OpenGL Light attenuation factor (default=0.0)
                        //float m_light_quad_attenuation;               //!< OpenGL Light attenuation factor (default=0.0)
                };
                DEFINE_SERIALIZABLE_POST_CUSTOM_BASE_LINKAGE( C3DSScene, CRenderizableDisplayList, OPENGL_IMPEXP )


        } // end namespace

} // End of namespace


#endif