VisVolRenderer.hpp

#pragma once

#include "Vis.hpp"
#include "VisTexture1D.hpp"
#include "VisTexture2D.hpp"
#include "VisTexture3D.hpp"
#include "VisMesh.hpp"
#include "VisShader.hpp"
#include "VisFBO.hpp"

class VolRenderer
{

    Texture3D* volume;

    M44f texture_matrix;

    vector<Plane3f> planes;

    vector<visPolygon> plane_polygons;

    Shader pass1;

    Shader* pass2;

        Shader lightS;

    Shader nonLightS;

        Shader npr;

        Shader nprPost;

        Color4f upperLight;

    Color4f lowerLight;

    V3f lightNormal;

        bool lightOn;

        bool nprOn;


    Texture2D* offscreen_buffer;

    FBO* fbo;

        public:

        Texture1D* transferFunction;

    bool texInit;

    VolRenderer(Texture3D &volume);

    virtual ~VolRenderer();

    void draw();

    void add_plane(Plane3f plane);

    void delete_plane(int i);

    void set_plane(int i, Plane3f plane);

    int get_plane_count()
    {
        return planes.size();
    }

    Plane3f get_plane(int i)
    {
        return planes[i];
    }

        void setTransferFunc(Texture1D* tData);

    void triggerLight(bool on);

    void triggerNPR(bool on);

        void setUpperLight (Color4f color) { upperLight = color; }

        void setLowerLight (Color4f color) { lowerLight = color; }

        void setLightDirection (V3f dir) { lightNormal = dir; }

    void resizeBackBuffer(V2i new_size);
};

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