VRS - The Virtual Rendering System

version 3.3

greenspacepainter.h

Go to the documentation of this file.

#ifndef GREENSPACEPAINTER_H
#define GREENSPACEPAINTER_H

#include <vrs/environment/config.h>
#include <vrs/shapepainter.h>
#include <vrs/container/dictionary.h>

namespace VRS {
    class Engine;
    class Shape;
    class Engine;
    class Image;
    class MonoAttribute;
    class Facet;
    class PolygonSet;
    class ImageTexture2DGL;
    template<typename T> class Array;
}

namespace EnvironmentRenderer {

    class GreenSpace;

    class VRS_ENV_API GreenSpacePainter : public VRS::ShapePainter {
    public:

        virtual VRS::ID target() const;

        virtual bool render(VRS::Engine*, const VRS::Shape*);

        static VRS::SO<VRS::ImageTexture2DGL> createTextureAtlas(VRS::SO<VRS::Iterator<VRS::SO<VRS::PolygonSet> > > tussocks, VRS::SO<VRS::Iterator<VRS::SO<VRS::Image> > > tussockTextures);
        static VRS::SO<VRS::PolygonSet> createTussock(const VRS::Vector& position, const VRS::Vector& normal, unsigned int fans, double length, double angle, unsigned int lamellas, double aspectRatio, double topPadding);

        VRS_TYPEINFO(GreenSpacePainter, VRS::ShapePainter);

    protected:
        static VRS::SO<VRS::PolygonSet> createFan(double length, double angle, unsigned int lamellas, double aspectRatio, double topPadding);

        struct GreenSpaceData
        {
            VRS::SO<VRS::MonoAttribute> atlasTexture;
            VRS::SO<VRS::MonoAttribute> tussockGeometry;
        };

        void setSurface(GreenSpaceData &data, VRS::SO<GreenSpace> gs);

        void createGrass(GreenSpaceData &data,
                         VRS::SO<GreenSpace> gs,
                         VRS::SO<VRS::Iterator<VRS::SO<VRS::Facet> > > triangles);


        VRS::SO<VRS::NonPersistentDictionary<GreenSpace*, GreenSpaceData> > m_data;

        // to avoid memory-leaks, a GreenSpace's geometry is removed from the painter, if the
        // GreenSpace is destroyed
        VRS::SO<VRS::Callback1<VRS::SharedObj*> > m_destructionCallback;
        void removeFromPainter(VRS::SharedObj* s);

    };

} // namepsace EnvironmentRenderer

#endif // GREENSPACEPAINTER_H

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