SEnvironmentMgr.h

//
// Created by ounols on 19. 5. 4.
//
#pragma once
 
#include "STexture.h"
 
namespace CSE {
 
    class GLProgramHandle;
 
    class SEnvironmentMgr {
    public:
        SEnvironmentMgr();
 
        ~SEnvironmentMgr();
 
        void RenderPBREnvironment();
 
        void RenderBRDFLUT();
 
        void ReleaseRenderingResources();
 
        int BindPBREnvironmentMap(const GLProgramHandle* handle, int textureLayout) const;
        int BindBRDFLUT(const GLProgramHandle* handle, int textureLayout) const;
 
        static unsigned int GetWidth();
        static unsigned int* GetPointerWidth();
 
        static void SetWidth(unsigned int width);
 
        static unsigned int GetHeight();
        static unsigned int* GetPointerHeight();
 
        static void SetHeight(unsigned int height);
 
        static void RenderPlaneVAO();
        static void RenderCubeVAO();
 
        static void ReleaseVAO();
        
    private:
        void LoadCubeVAO();
 
        void LoadPlaneVAO();
 
 
 
    private:
        static unsigned int m_width;
        static unsigned int m_height;
 
        GLProgramHandle* m_equirectangularToCubemapShader;
        GLProgramHandle* m_irradianceShader;
        GLProgramHandle* m_prefilterShader;
        GLProgramHandle* m_brdfShader;
 
        STexture* m_hdrTexture;
        STexture* m_envCubemap;
        STexture* m_irradianceMap;
        STexture* m_prefilterMap;
        STexture* m_brdfMap;
 
        unsigned int m_cubeVBO;
        static unsigned int m_cubeVAO;
        unsigned int m_planeVBO;
        static unsigned int m_planeVAO;
 
        unsigned int m_captureFBO = 0;
        unsigned int m_captureRBO = 0;
    };
}