equirectangular.h

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/*****************************************************************************************
 * SGCT                                                                                  *
 * Simple Graphics Cluster Toolkit                                                       *
 *                                                                                       *
 * Copyright (c) 2012-2026                                                               *
 * For conditions of distribution and use, see copyright notice in LICENSE.md            *
 ****************************************************************************************/
 
#ifndef __SGCT__EQUIRECTANGULAR__H__
#define __SGCT__EQUIRECTANGULAR__H__
 
#include <sgct/sgctexports.h>
#include <sgct/projection/nonlinearprojection.h>
 
#include <sgct/math.h>
#include <sgct/shaderprogram.h>
 
namespace sgct {
 
namespace config { struct EquirectangularProjection; }
class BaseViewport;
class User;
class Window;
 
class SGCT_EXPORT EquirectangularProjection final : public NonLinearProjection {
public:
    EquirectangularProjection(const config::EquirectangularProjection& config,
        const Window& parent, User& user);
    ~EquirectangularProjection() final;
 
    void render(const BaseViewport& viewport, FrustumMode mode) const override;
 
    void renderCubemap(FrustumMode frustumMode) const override;
 
    void update(const vec2& size) const override;
 
private:
    void initVBO() override;
    void initViewports() override;
    void initShaders() override;
 
    unsigned int _vao = 0;
    unsigned int _vbo = 0;
    ShaderProgram _shader;
};
 
} // namespace sgct
 
#endif // __SGCT__EQUIRECTANGULAR__H__