119 lines
3.4 KiB
C++
119 lines
3.4 KiB
C++
/**
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* @file llatmosphere.h
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* @brief LLAtmosphere class for integration with libatmosphere
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*
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* $LicenseInfo:firstyear=2018&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2018, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#ifndef LL_ATMOSPHERE_H
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#define LL_ATMOSPHERE_H
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#include "llglheaders.h"
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#include "llgltexture.h"
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#include "libatmosphere/model.h"
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typedef std::vector<atmosphere::DensityProfileLayer> DensityProfile;
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class AtmosphericModelSettings
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{
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public:
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AtmosphericModelSettings();
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AtmosphericModelSettings(
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DensityProfile& rayleighProfile,
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DensityProfile& mieProfile,
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DensityProfile& absorptionProfile);
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AtmosphericModelSettings(
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F32 skyBottomRadius,
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F32 skyTopRadius,
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DensityProfile& rayleighProfile,
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DensityProfile& mieProfile,
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DensityProfile& absorptionProfile,
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F32 sunArcRadians,
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F32 mieAniso);
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bool operator==(const AtmosphericModelSettings& rhs) const;
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F32 m_skyBottomRadius;
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F32 m_skyTopRadius;
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DensityProfile m_rayleighProfile;
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DensityProfile m_mieProfile;
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DensityProfile m_absorptionProfile;
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F32 m_sunArcRadians;
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F32 m_mieAnisotropy;
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};
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class LLAtmosphere
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{
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public:
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LLAtmosphere();
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~LLAtmosphere();
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static void initClass();
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static void cleanupClass();
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const LLAtmosphere& operator=(const LLAtmosphere& rhs)
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{
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LL_ERRS() << "Illegal operation!" << LL_ENDL;
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return *this;
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}
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LLGLTexture* getTransmittance();
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LLGLTexture* getScattering();
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LLGLTexture* getMieScattering();
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LLGLTexture* getIlluminance();
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GLhandleARB getAtmosphericShaderForLink() const;
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bool configureAtmosphericModel(AtmosphericModelSettings& settings);
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protected:
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LLAtmosphere(const LLAtmosphere& rhs)
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{
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*this = rhs;
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}
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atmosphere::ModelConfig m_config;
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atmosphere::PrecomputedTextures m_textures;
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atmosphere::Model* m_model = nullptr;
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LLPointer<LLGLTexture> m_transmittance;
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LLPointer<LLGLTexture> m_scattering;
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LLPointer<LLGLTexture> m_mie_scatter_texture;
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LLPointer<LLGLTexture> m_illuminance;
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std::vector<double> m_wavelengths;
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std::vector<double> m_solar_irradiance;
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std::vector<double> m_rayleigh_scattering;
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std::vector<double> m_mie_scattering;
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std::vector<double> m_mie_extinction;
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std::vector<double> m_absorption_extinction;
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std::vector<double> m_ground_albedo;
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AtmosphericModelSettings m_settings;
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};
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extern LLAtmosphere* gAtmosphere;
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#endif // LL_ATMOSPHERE_H
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