CutawaySurface.h

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#pragma once

#include "ZBufferShader.h"
#include "Quad.h"
#include "QuadShader.h"
#include <memory>

class CutawaySurface {
public: 
    CutawaySurface();
    ~CutawaySurface();

    void init(int w, int h, float z_near, float z_far, float angle, float cut);

    void update(int w, int h, float z_near, float z_far, float angle, float c);

    void prepareZBufferPass();
    void endZBufferPass();
    void quadPass(int step, glm::mat4& vp);
    void prepareRenderPass(int unit);
    
    glm::vec2 getDimension();
    
    GLuint getTextureHandle(int tex);

    GLuint getFBOHandle(int fbo);

    void clearBuffers();
    
    ZBufferShader* z_buffer_shader;
    Quad* quad;
    QuadShader* quad_shader;
    float cut;
private:
    GLuint tex1, tex2, look_up_tex, target_tex, fbo1, fbo2, target_fbo;
    int width, height, last_target;
};