visibilitypass.h

#ifndef VISIBILITYPASS_H
#define VISIBILITYPASS_H

#include "renderpass.h"
#include "camera.h"

class VisibilityPass: public RenderPass {
public:
    VisibilityPass();
    ~VisibilityPass();
    void render() override;
    void cleanup() override;

    void addObjectInput(VaoChannel &vaoChannel);

    void removeObjectInput(VaoChannel &vaoChannel);

    void clearObjectInput();
    TextureChannel &getDepthMapOutput();

    bool depthMapToScreen();
    void removeInput();
    void updateResolution() override;

    static void linkVpMat(QMatrix4x4 &vp);

    static void linkVMat(QMatrix4x4 &v);

    static void linkPointSizeCoeff(float &coeff);

    void linkSplatScale(float &scale);
private:
    std::list<VaoChannel*> objectIn;
    TextureChannel *depthMapOut;
    GLuint fbo;
    static GLuint vertexShader, fragmentShader, shaderProgram, loc_mvp, loc_pointSizeCoeff,
        loc_mv, loc_viewportScale, loc_npdata, loc_depthFactor, loc_splatScale, loc_modelScale;
    static QMatrix4x4 *vpMat;
    static QMatrix4x4 *vMat;
    static float *pointSizeCoeff;
    static unsigned char instanceCounter;
    float *splatScale;
    bool initialized;

    bool generateFBO();
    void removeFBO();
    bool init();
    static bool initShaders();
    static void cleanupShaders();
};

#endif // VISIBILITYPASS_H