SkyboxMaterial.h

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// Copyright © 2008-2021 Pioneer Developers. See AUTHORS.txt for details
// Licensed under the terms of the GPL v3. See licenses/GPL-3.txt
 
#ifndef _OGL_SKYBOX_MATERIAL_H_
#define _OGL_SKYBOX_MATERIAL_H_
 
/*
 * Renders a cube map as a skybox.
 */
#include "OpenGLLibs.h"
#include "Program.h"
 
namespace Graphics {
    namespace OGL {
        class SkyboxMaterial : public Material {
        private:
        public:
            SkyboxMaterial()
            {
                texture0 = nullptr;
                fSkyboxFactor = 0.8f;
            }
 
            virtual Program *CreateProgram(const MaterialDescriptor &) override
            {
                return new Program("skybox", "");
            }
 
            virtual void Apply() override
            {
                m_program->Use();
                if (texture0) {
                    m_program->texture0.Set(texture0, 0);
                }
                const float em = (float(emissive.r) * 0.003921568627451f);
                m_program->shininess.Set(fSkyboxFactor * em);
            }
 
            // Skybox multiplier
            float fSkyboxFactor;
        };
    } // namespace OGL
} // namespace Graphics
 
#endif