attributepass.h

#ifndef ATTRIBUTEPASS_H
#define ATTRIBUTEPASS_H

#include "renderpass.h"

#define SO_COLOR 0
#define SO_NORMAL 1

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

    void addObjectInput(VaoChannel &vaoChannel);

    void removeObjectInput(VaoChannel &vaoChannel);

    void clearObjectInput();

    void setDepthMapInput(TextureChannel &textureChannel);

    TextureChannel &getNormalMapOutput();

    bool normalMapToScreen();

    TextureChannel &getColorMapOutput();

    bool colorMapToScreen();
    void removeInput() override;
    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 *depthMapIn, *normalMapOut, *colorMapOut;
    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;
    unsigned char drawMode; //draw mode can be: 0 - no screen output, 1 - draw color, 2 - draw normals

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

#endif // ATTRIBUTEPASS_H