diff options
Diffstat (limited to 'indra/llrender')
| -rw-r--r-- | indra/llrender/llatmosphere.cpp | 505 | ||||
| -rw-r--r-- | indra/llrender/llatmosphere.h | 48 |
2 files changed, 332 insertions, 221 deletions
diff --git a/indra/llrender/llatmosphere.cpp b/indra/llrender/llatmosphere.cpp index 6ce5292839..6a4745eb95 100644 --- a/indra/llrender/llatmosphere.cpp +++ b/indra/llrender/llatmosphere.cpp @@ -1,221 +1,292 @@ -/** - * @file llatmosphere.cpp - * @brief LLAtmosphere integration impl - * - * $LicenseInfo:firstyear=2018&license=viewerlgpl$ - * Second Life Viewer Source Code - * Copyright (C) 2018, Linden Research, Inc. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; - * version 2.1 of the License only. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * - * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA - * $/LicenseInfo$ - */ - -#include "linden_common.h" - -#include "llatmosphere.h" -#include "llfasttimer.h" -#include "llsys.h" -#include "llglheaders.h" -#include "llrender.h" -#include "llshadermgr.h" -#include "llglslshader.h" - -LLAtmosphere* gAtmosphere = nullptr; - -void LLAtmosphere::initClass() -{ - if (!gAtmosphere) - { - gAtmosphere = new LLAtmosphere; - } -} - -void LLAtmosphere::cleanupClass() +/**
+ * @file llatmosphere.cpp
+ * @brief LLAtmosphere integration impl
+ *
+ * $LicenseInfo:firstyear=2018&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2018, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
+ * $/LicenseInfo$
+ */
+
+#include "linden_common.h"
+
+#include "llatmosphere.h"
+#include "llfasttimer.h"
+#include "llsys.h"
+#include "llglheaders.h"
+#include "llrender.h"
+#include "llshadermgr.h"
+#include "llglslshader.h"
+
+LLAtmosphere* gAtmosphere = nullptr;
+
+// Values from "Reference Solar Spectral Irradiance: ASTM G-173", ETR column
+// (see http://rredc.nrel.gov/solar/spectra/am1.5/ASTMG173/ASTMG173.html),
+// summed and averaged in each bin (e.g. the value for 360nm is the average
+// of the ASTM G-173 values for all wavelengths between 360 and 370nm).
+// Values in W.m^-2.
+const int kLambdaMin = 360;
+const int kLambdaMax = 830;
+const double kSolarIrradiance[48] = {
+ 1.11776, 1.14259, 1.01249, 1.14716, 1.72765, 1.73054, 1.6887, 1.61253,
+ 1.91198, 2.03474, 2.02042, 2.02212, 1.93377, 1.95809, 1.91686, 1.8298,
+ 1.8685, 1.8931, 1.85149, 1.8504, 1.8341, 1.8345, 1.8147, 1.78158, 1.7533,
+ 1.6965, 1.68194, 1.64654, 1.6048, 1.52143, 1.55622, 1.5113, 1.474, 1.4482,
+ 1.41018, 1.36775, 1.34188, 1.31429, 1.28303, 1.26758, 1.2367, 1.2082,
+ 1.18737, 1.14683, 1.12362, 1.1058, 1.07124, 1.04992
+};
+
+// Values from http://www.iup.uni-bremen.de/gruppen/molspec/databases/
+// referencespectra/o3spectra2011/index.html for 233K, summed and averaged in
+// each bin (e.g. the value for 360nm is the average of the original values
+// for all wavelengths between 360 and 370nm). Values in m^2.
+const double kOzoneCrossSection[48] = {
+ 1.18e-27, 2.182e-28, 2.818e-28, 6.636e-28, 1.527e-27, 2.763e-27, 5.52e-27,
+ 8.451e-27, 1.582e-26, 2.316e-26, 3.669e-26, 4.924e-26, 7.752e-26, 9.016e-26,
+ 1.48e-25, 1.602e-25, 2.139e-25, 2.755e-25, 3.091e-25, 3.5e-25, 4.266e-25,
+ 4.672e-25, 4.398e-25, 4.701e-25, 5.019e-25, 4.305e-25, 3.74e-25, 3.215e-25,
+ 2.662e-25, 2.238e-25, 1.852e-25, 1.473e-25, 1.209e-25, 9.423e-26, 7.455e-26,
+ 6.566e-26, 5.105e-26, 4.15e-26, 4.228e-26, 3.237e-26, 2.451e-26, 2.801e-26,
+ 2.534e-26, 1.624e-26, 1.465e-26, 2.078e-26, 1.383e-26, 7.105e-27
+};
+
+// From https://en.wikipedia.org/wiki/Dobson_unit, in molecules.m^-2.
+const double kDobsonUnit = 2.687e20;
+// Maximum number density of ozone molecules, in m^-3 (computed so at to get
+// 300 Dobson units of ozone - for this we divide 300 DU by the integral of
+// the ozone density profile defined below, which is equal to 15km).
+const double kMaxOzoneNumberDensity = 300.0 * kDobsonUnit / 15000.0;
+const double kSunAngularRadius = 0.00935 / 2.0;
+const double kBottomRadius = 6360000.0;
+const double kTopRadius = 6420000.0;
+const double kRayleigh = 1.24062e-6;
+const double kRayleighScaleHeight = 8000.0;
+const double kMieScaleHeight = 1200.0;
+const double kMieAngstromAlpha = 0.0;
+const double kMieAngstromBeta = 5.328e-3;
+const double kMieSingleScatteringAlbedo = 0.9;
+const double kMiePhaseFunctionG = 0.8;
+const double max_sun_zenith_angle = F_PI * 2.0 / 3.0;
+
+AtmosphericModelSettings::AtmosphericModelSettings()
+ : m_skyBottomRadius(6360.0f)
+ , m_skyTopRadius(6420.0f)
+ , m_sunArcRadians(0.00045f)
+ , m_mieAnisotropy(0.8f)
+{
+ atmosphere::DensityProfileLayer rayleigh_density(0.0, 1.0, -1.0 / kRayleighScaleHeight, 0.0, 0.0);
+ atmosphere::DensityProfileLayer mie_density(0.0, 1.0, -1.0 / kMieScaleHeight, 0.0, 0.0);
+
+ m_rayleighProfile.push_back(rayleigh_density);
+ m_mieProfile.push_back(mie_density);
+
+ // Density profile increasing linearly from 0 to 1 between 10 and 25km, and
+ // decreasing linearly from 1 to 0 between 25 and 40km. This is an approximate
+ // profile from http://www.kln.ac.lk/science/Chemistry/Teaching_Resources/
+ // Documents/Introduction%20to%20atmospheric%20chemistry.pdf (page 10).
+ m_absorptionProfile.push_back(atmosphere::DensityProfileLayer(25000.0, 0.0, 0.0, 1.0 / 15000.0, -2.0 / 3.0));
+ m_absorptionProfile.push_back(atmosphere::DensityProfileLayer(0.0, 0.0, 0.0, -1.0 / 15000.0, 8.0 / 3.0));
+}
+
+AtmosphericModelSettings::AtmosphericModelSettings( + DensityProfile& rayleighProfile, + DensityProfile& mieProfile, + DensityProfile& absorptionProfile) +: m_skyBottomRadius(6360.0f) +, m_skyTopRadius(6420.0f) +, m_rayleighProfile(rayleighProfile) +, m_mieProfile(mieProfile) +, m_absorptionProfile(absorptionProfile) +, m_sunArcRadians(0.00045f) +, m_mieAnisotropy(0.8f) { - if(gAtmosphere) - { - delete gAtmosphere; - } - gAtmosphere = NULL; } -LLAtmosphere::LLAtmosphere() +AtmosphericModelSettings::AtmosphericModelSettings( + F32 skyBottomRadius, + F32 skyTopRadius, + DensityProfile& rayleighProfile, + DensityProfile& mieProfile, + DensityProfile& absorptionProfile, + F32 sunArcRadians, + F32 mieAniso) +: m_skyBottomRadius(skyBottomRadius) +, m_skyTopRadius(skyTopRadius) +, m_rayleighProfile(rayleighProfile) +, m_mieProfile(mieProfile) +, m_absorptionProfile(absorptionProfile) +, m_sunArcRadians(sunArcRadians) +, m_mieAnisotropy(mieAniso) { - // Init libatmosphere model - m_config.num_scattering_orders = 4; - - // Values from "Reference Solar Spectral Irradiance: ASTM G-173", ETR column - // (see http://rredc.nrel.gov/solar/spectra/am1.5/ASTMG173/ASTMG173.html), - // summed and averaged in each bin (e.g. the value for 360nm is the average - // of the ASTM G-173 values for all wavelengths between 360 and 370nm). - // Values in W.m^-2. - const int kLambdaMin = 360; - const int kLambdaMax = 830; - const double kSolarIrradiance[48] = { - 1.11776, 1.14259, 1.01249, 1.14716, 1.72765, 1.73054, 1.6887, 1.61253, - 1.91198, 2.03474, 2.02042, 2.02212, 1.93377, 1.95809, 1.91686, 1.8298, - 1.8685, 1.8931, 1.85149, 1.8504, 1.8341, 1.8345, 1.8147, 1.78158, 1.7533, - 1.6965, 1.68194, 1.64654, 1.6048, 1.52143, 1.55622, 1.5113, 1.474, 1.4482, - 1.41018, 1.36775, 1.34188, 1.31429, 1.28303, 1.26758, 1.2367, 1.2082, - 1.18737, 1.14683, 1.12362, 1.1058, 1.07124, 1.04992 - }; - - // Values from http://www.iup.uni-bremen.de/gruppen/molspec/databases/ - // referencespectra/o3spectra2011/index.html for 233K, summed and averaged in - // each bin (e.g. the value for 360nm is the average of the original values - // for all wavelengths between 360 and 370nm). Values in m^2. - const double kOzoneCrossSection[48] = { - 1.18e-27, 2.182e-28, 2.818e-28, 6.636e-28, 1.527e-27, 2.763e-27, 5.52e-27, - 8.451e-27, 1.582e-26, 2.316e-26, 3.669e-26, 4.924e-26, 7.752e-26, 9.016e-26, - 1.48e-25, 1.602e-25, 2.139e-25, 2.755e-25, 3.091e-25, 3.5e-25, 4.266e-25, - 4.672e-25, 4.398e-25, 4.701e-25, 5.019e-25, 4.305e-25, 3.74e-25, 3.215e-25, - 2.662e-25, 2.238e-25, 1.852e-25, 1.473e-25, 1.209e-25, 9.423e-26, 7.455e-26, - 6.566e-26, 5.105e-26, 4.15e-26, 4.228e-26, 3.237e-26, 2.451e-26, 2.801e-26, - 2.534e-26, 1.624e-26, 1.465e-26, 2.078e-26, 1.383e-26, 7.105e-27 - }; - - // From https://en.wikipedia.org/wiki/Dobson_unit, in molecules.m^-2. - const double kDobsonUnit = 2.687e20; - - // Maximum number density of ozone molecules, in m^-3 (computed so at to get - // 300 Dobson units of ozone - for this we divide 300 DU by the integral of - // the ozone density profile defined below, which is equal to 15km). - const double kMaxOzoneNumberDensity = 300.0 * kDobsonUnit / 15000.0; - - const double kSunAngularRadius = 0.00935 / 2.0; - const double kBottomRadius = 6360000.0; - const double kTopRadius = 6420000.0; - const double kRayleigh = 1.24062e-6; - const double kRayleighScaleHeight = 8000.0; - const double kMieScaleHeight = 1200.0; - const double kMieAngstromAlpha = 0.0; - const double kMieAngstromBeta = 5.328e-3; - const double kMieSingleScatteringAlbedo = 0.9; - const double kMiePhaseFunctionG = 0.8; - const double max_sun_zenith_angle = F_PI * 2.0 / 3.0; - - atmosphere::DensityProfileLayer rayleigh_density(0.0, 1.0, -1.0 / kRayleighScaleHeight, 0.0, 0.0); - atmosphere::DensityProfileLayer mie_density(0.0, 1.0, -1.0 / kMieScaleHeight, 0.0, 0.0); - - // Density profile increasing linearly from 0 to 1 between 10 and 25km, and - // decreasing linearly from 1 to 0 between 25 and 40km. This is an approximate - // profile from http://www.kln.ac.lk/science/Chemistry/Teaching_Resources/ - // Documents/Introduction%20to%20atmospheric%20chemistry.pdf (page 10). - std::vector<atmosphere::DensityProfileLayer> ozone_density; - ozone_density.push_back(atmosphere::DensityProfileLayer(25000.0, 0.0, 0.0, 1.0 / 15000.0, -2.0 / 3.0)); - ozone_density.push_back(atmosphere::DensityProfileLayer(0.0, 0.0, 0.0, -1.0 / 15000.0, 8.0 / 3.0)); - - std::vector<double> wavelengths; - std::vector<double> solar_irradiance; - std::vector<double> rayleigh_scattering; - std::vector<double> mie_scattering; - std::vector<double> mie_extinction; - std::vector<double> absorption_extinction; - std::vector<double> ground_albedo; - - for (int l = kLambdaMin; l <= kLambdaMax; l += 10) - { - double lambda = static_cast<double>(l) * 1e-3; // micro-meters - double mie = kMieAngstromBeta / kMieScaleHeight * pow(lambda, -kMieAngstromAlpha); - wavelengths.push_back(l); - solar_irradiance.push_back(kSolarIrradiance[(l - kLambdaMin) / 10]); - rayleigh_scattering.push_back(kRayleigh * pow(lambda, -4)); - mie_scattering.push_back(mie * kMieSingleScatteringAlbedo); - mie_extinction.push_back(mie); - absorption_extinction.push_back(kMaxOzoneNumberDensity * kOzoneCrossSection[(l - kLambdaMin) / 10]); - ground_albedo.push_back(0.1f); - } - - m_model = new atmosphere::Model( - wavelengths, - solar_irradiance, - kSunAngularRadius, - kBottomRadius, - kTopRadius, - {rayleigh_density}, - rayleigh_scattering, - {mie_density}, - mie_scattering, - mie_extinction, - kMiePhaseFunctionG, - ozone_density, - absorption_extinction, - ground_albedo, - max_sun_zenith_angle, - 1000.0, - 15, - false, - true); - - m_model->Init(m_config, m_textures); - - m_transmittance = new LLGLTexture; - m_scattering = new LLGLTexture; - m_mie_scattering = new LLGLTexture; - - m_transmittance->generateGLTexture(); - m_transmittance->setAddressMode(LLTexUnit::eTextureAddressMode::TAM_CLAMP); - m_transmittance->setFilteringOption(LLTexUnit::eTextureFilterOptions::TFO_BILINEAR); - m_transmittance->setExplicitFormat(GL_RGB16F_ARB, GL_RGB, GL_FLOAT); - m_transmittance->setTexName(m_textures.transmittance_texture); - m_transmittance->setTarget(GL_TEXTURE_2D, LLTexUnit::TT_TEXTURE); - - m_scattering->generateGLTexture(); - m_scattering->setAddressMode(LLTexUnit::eTextureAddressMode::TAM_CLAMP); - m_scattering->setFilteringOption(LLTexUnit::eTextureFilterOptions::TFO_BILINEAR); - m_scattering->setExplicitFormat(GL_RGB16F_ARB, GL_RGB, GL_FLOAT); - m_scattering->setTexName(m_textures.transmittance_texture); - m_scattering->setTarget(GL_TEXTURE_3D, LLTexUnit::TT_TEXTURE_3D); - - m_mie_scattering->generateGLTexture(); - m_mie_scattering->setAddressMode(LLTexUnit::eTextureAddressMode::TAM_CLAMP); - m_mie_scattering->setFilteringOption(LLTexUnit::eTextureFilterOptions::TFO_BILINEAR); - m_mie_scattering->setExplicitFormat(GL_RGB16F_ARB, GL_RGB, GL_FLOAT); - m_mie_scattering->setTexName(m_textures.transmittance_texture); - m_mie_scattering->setTarget(GL_TEXTURE_3D, LLTexUnit::TT_TEXTURE_3D); -}; - -LLAtmosphere::~LLAtmosphere() -{ - // Cease referencing textures from atmosphere::model from our LLGLTextures wrappers for same. - m_transmittance->setTexName(0); - m_scattering->setTexName(0); - m_mie_scattering->setTexName(0); - - delete m_model; - m_model = nullptr; -} - -LLGLTexture* LLAtmosphere::getTransmittance() const -{ - return m_transmittance; -} - -LLGLTexture* LLAtmosphere::getScattering() const -{ - return m_scattering; -} - -LLGLTexture* LLAtmosphere::getMieScattering() const -{ - return m_mie_scattering; -} - -GLhandleARB LLAtmosphere::getAtmosphericShaderForLink() const -{ - return m_model ? m_model->GetShader() : 0; -} +}
+
+void LLAtmosphere::initClass()
+{
+ if (!gAtmosphere)
+ {
+ gAtmosphere = new LLAtmosphere;
+ }
+}
+
+void LLAtmosphere::cleanupClass()
+{
+ if(gAtmosphere)
+ {
+ delete gAtmosphere;
+ }
+ gAtmosphere = NULL;
+}
+
+LLAtmosphere::LLAtmosphere()
+{
+ for (int l = kLambdaMin; l <= kLambdaMax; l += 10)
+ {
+ double lambda = static_cast<double>(l) * 1e-3; // micro-meters
+ double mie = kMieAngstromBeta / kMieScaleHeight * pow(lambda, -kMieAngstromAlpha);
+ m_wavelengths.push_back(l);
+ m_solar_irradiance.push_back(kSolarIrradiance[(l - kLambdaMin) / 10]);
+ m_rayleigh_scattering.push_back(kRayleigh * pow(lambda, -4));
+ m_mie_scattering.push_back(mie * kMieSingleScatteringAlbedo);
+ m_mie_extinction.push_back(mie);
+ m_absorption_extinction.push_back(kMaxOzoneNumberDensity * kOzoneCrossSection[(l - kLambdaMin) / 10]);
+ m_ground_albedo.push_back(0.6f);
+ }
+
+ AtmosphericModelSettings defaults;
+ configureAtmosphericModel(defaults);
+}
+
+LLAtmosphere::~LLAtmosphere()
+{
+ // Cease referencing textures from atmosphere::model from our LLGLTextures wrappers for same.
+ if (m_transmittance)
+ {
+ m_transmittance->setTexName(0);
+ }
+
+ if (m_scattering)
+ {
+ m_scattering->setTexName(0);
+ }
+
+ if (m_mie_scatter_texture)
+ {
+ m_mie_scatter_texture->setTexName(0);
+ }
+
+ delete m_model;
+ m_model = nullptr;
+}
+
+bool LLAtmosphere::configureAtmosphericModel(AtmosphericModelSettings& settings)
+{
+// Advanced Atmospherics TODO
+// Make this store a hash of the precomputed data
+// and avoid redundant calcs for identical settings
+
+ if (m_model)
+ {
+ delete m_model;
+ }
+ m_model = nullptr;
+ getTransmittance()->setTexName(0);
+ getScattering()->setTexName(0);
+ getMieScattering()->setTexName(0);
+
+ // Init libatmosphere model
+ m_config.num_scattering_orders = 4;
+
+ m_model = new atmosphere::Model(
+ m_wavelengths,
+ m_solar_irradiance,
+ settings.m_sunArcRadians,
+ settings.m_skyBottomRadius * 1000.0f,
+ settings.m_skyTopRadius * 1000.0f,
+ settings.m_rayleighProfile,
+ m_rayleigh_scattering,
+ settings.m_mieProfile,
+ m_mie_scattering,
+ m_mie_extinction,
+ settings.m_mieAnisotropy,
+ settings.m_absorptionProfile,
+ m_absorption_extinction,
+ m_ground_albedo,
+ max_sun_zenith_angle,
+ 1000.0,
+ 15,
+ false,
+ true);
+
+ if (m_model)
+ {
+ m_model->Init(m_config, m_textures);
+ getTransmittance()->setTexName(m_textures.transmittance_texture);
+ getScattering()->setTexName(m_textures.transmittance_texture);
+ getMieScattering()->setTexName(m_textures.transmittance_texture);
+ }
+
+ return m_model != nullptr;
+}
+
+LLGLTexture* LLAtmosphere::getTransmittance()
+{
+ if (!m_transmittance)
+ {
+ m_transmittance = new LLGLTexture;
+ m_transmittance->generateGLTexture();
+ m_transmittance->setAddressMode(LLTexUnit::eTextureAddressMode::TAM_CLAMP);
+ m_transmittance->setFilteringOption(LLTexUnit::eTextureFilterOptions::TFO_BILINEAR);
+ m_transmittance->setExplicitFormat(GL_RGB16F_ARB, GL_RGB, GL_FLOAT);
+ m_transmittance->setTarget(GL_TEXTURE_2D, LLTexUnit::TT_TEXTURE);
+ }
+ return m_transmittance;
+}
+
+LLGLTexture* LLAtmosphere::getScattering()
+{
+ if (!m_scattering)
+ {
+ m_scattering = new LLGLTexture;
+ m_scattering->generateGLTexture();
+ m_scattering->setAddressMode(LLTexUnit::eTextureAddressMode::TAM_CLAMP);
+ m_scattering->setFilteringOption(LLTexUnit::eTextureFilterOptions::TFO_BILINEAR);
+ m_scattering->setExplicitFormat(GL_RGB16F_ARB, GL_RGB, GL_FLOAT);
+ m_scattering->setTarget(GL_TEXTURE_3D, LLTexUnit::TT_TEXTURE_3D);
+ }
+ return m_scattering;
+}
+
+LLGLTexture* LLAtmosphere::getMieScattering()
+{
+ if (!m_mie_scatter_texture)
+ {
+ m_mie_scatter_texture = new LLGLTexture;
+ m_mie_scatter_texture->generateGLTexture();
+ m_mie_scatter_texture->setAddressMode(LLTexUnit::eTextureAddressMode::TAM_CLAMP);
+ m_mie_scatter_texture->setFilteringOption(LLTexUnit::eTextureFilterOptions::TFO_BILINEAR);
+ m_mie_scatter_texture->setExplicitFormat(GL_RGB16F_ARB, GL_RGB, GL_FLOAT);
+ m_mie_scatter_texture->setTarget(GL_TEXTURE_3D, LLTexUnit::TT_TEXTURE_3D);
+ }
+ return m_mie_scatter_texture;
+}
+
+GLhandleARB LLAtmosphere::getAtmosphericShaderForLink() const
+{
+ return m_model ? m_model->GetShader() : 0;
+}
diff --git a/indra/llrender/llatmosphere.h b/indra/llrender/llatmosphere.h index 6a9d1a4438..53dc1dd354 100644 --- a/indra/llrender/llatmosphere.h +++ b/indra/llrender/llatmosphere.h @@ -31,6 +31,36 @@ #include "llgltexture.h" #include "libatmosphere/model.h" +typedef std::vector<atmosphere::DensityProfileLayer> DensityProfile; + +class AtmosphericModelSettings +{ +public: + AtmosphericModelSettings(); + + AtmosphericModelSettings( + DensityProfile& rayleighProfile, + DensityProfile& mieProfile, + DensityProfile& absorptionProfile); + + AtmosphericModelSettings( + F32 skyBottomRadius, + F32 skyTopRadius, + DensityProfile& rayleighProfile, + DensityProfile& mieProfile, + DensityProfile& absorptionProfile, + F32 sunArcRadians, + F32 mieAniso); + + F32 m_skyBottomRadius; + F32 m_skyTopRadius; + DensityProfile m_rayleighProfile; + DensityProfile m_mieProfile; + DensityProfile m_absorptionProfile; + F32 m_sunArcRadians; + F32 m_mieAnisotropy; +}; + class LLAtmosphere { public: @@ -46,12 +76,14 @@ public: return *this; } - LLGLTexture* getTransmittance() const; - LLGLTexture* getScattering() const; - LLGLTexture* getMieScattering() const; + LLGLTexture* getTransmittance(); + LLGLTexture* getScattering(); + LLGLTexture* getMieScattering(); GLhandleARB getAtmosphericShaderForLink() const; + bool configureAtmosphericModel(AtmosphericModelSettings& settings); + protected: LLAtmosphere(const LLAtmosphere& rhs) { @@ -64,7 +96,15 @@ protected: LLPointer<LLGLTexture> m_transmittance; LLPointer<LLGLTexture> m_scattering; - LLPointer<LLGLTexture> m_mie_scattering; + LLPointer<LLGLTexture> m_mie_scatter_texture; + + std::vector<double> m_wavelengths; + std::vector<double> m_solar_irradiance; + std::vector<double> m_rayleigh_scattering; + std::vector<double> m_mie_scattering; + std::vector<double> m_mie_extinction; + std::vector<double> m_absorption_extinction; + std::vector<double> m_ground_albedo; }; extern LLAtmosphere* gAtmosphere; |