pbr.h

#ifndef OE_RENDER_PBR
#define OE_RENDER_PBR
 
#include <memory>
#include "texture.h"
#include "cubemap.h"
 
namespace oe::render
{
    class Pbr
    {
        public:
            std::shared_ptr<Texture> getBRDFLut() const;

            std::pair<std::shared_ptr<Texture>, std::shared_ptr<Texture>> getLTCTextures() const;

            std::shared_ptr<Cubemap> generateIrradianceCubemap(Cubemap* source);

            std::shared_ptr<Cubemap> generateSpecularCubemap(Cubemap* source, const uint32_t size = 256);
 
        private:
            mutable std::pair<std::shared_ptr<Texture>, std::shared_ptr<Texture>> _ltc_textures;
            mutable std::shared_ptr<Texture> _brdf_texture;
    };
}
#endif