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OpenSpace/modules/atmosphere/rendering/renderableatmosphere.cpp
Emil Axelsson 904811f60d Small cleanup
2019-08-13 11:28:33 +02:00

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/*****************************************************************************************
* *
* OpenSpace *
* *
* Copyright (c) 2014-2019 *
* *
* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
* software and associated documentation files (the "Software"), to deal in the Software *
* without restriction, including without limitation the rights to use, copy, modify, *
* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
* permit persons to whom the Software is furnished to do so, subject to the following *
* conditions: *
* *
* The above copyright notice and this permission notice shall be included in all copies *
* or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
****************************************************************************************/
#include <modules/atmosphere/rendering/renderableatmosphere.h>
#include <modules/atmosphere/rendering/atmospheredeferredcaster.h>
#include <modules/space/rendering/planetgeometry.h>
#include <openspace/documentation/documentation.h>
#include <openspace/documentation/verifier.h>
#include <openspace/engine/globals.h>
#include <openspace/rendering/deferredcastermanager.h>
#include <openspace/rendering/renderengine.h>
#include <openspace/rendering/renderer.h>
#include <openspace/scene/scenegraphnode.h>
#include <openspace/util/time.h>
#include <openspace/util/spicemanager.h>
#include <ghoul/filesystem/filesystem.h>
#include <ghoul/io/texture/texturereader.h>
#include <ghoul/logging/logmanager.h>
#include <ghoul/misc/assert.h>
#include <ghoul/misc/invariants.h>
#include <ghoul/opengl/programobject.h>
#include <ghoul/opengl/texture.h>
#include <ghoul/opengl/textureunit.h>
#include <glm/gtx/string_cast.hpp>
#include <fstream>
#include <memory>
#ifdef WIN32
#define _USE_MATH_DEFINES
#endif // WIN32
#include <math.h>
namespace {
static const char* _loggerCat = "RenderableAtmosphere";
const char* KeyShadowGroup = "ShadowGroup";
const char* KeyShadowSource = "Source";
const char* KeyShadowCaster = "Caster";
const char* keyAtmosphere = "Atmosphere";
const char* keyAtmosphereRadius = "AtmosphereRadius";
const char* keyPlanetRadius = "PlanetRadius";
const char* keyAverageGroundReflectance = "PlanetAverageGroundReflectance";
const char* keyRayleigh = "Rayleigh";
const char* keyRayleighHeightScale = "H_R";
const char* keyOzone = "Ozone";
const char* keyOzoneHeightScale = "H_O";
const char* keyMie = "Mie";
const char* keyMieHeightScale = "H_M";
const char* keyMiePhaseConstant = "G";
const char* keyImage = "Image";
const char* keyToneMappingOp = "ToneMapping";
const char* keyATMDebug = "Debug";
const char* keyTextureScale = "PreCalculatedTextureScale";
const char* keySaveTextures = "SaveCalculatedTextures";
constexpr openspace::properties::Property::PropertyInfo AtmosphereHeightInfo = {
"atmmosphereHeight",
"Atmosphere Height (KM)",
"The thickness of the atmosphere in Km"
};
constexpr openspace::properties::Property::PropertyInfo AverageGroundReflectanceInfo =
{
"AverageGroundReflectance",
"Average Ground Reflectance (%)",
"Average percentage of light reflected by the ground during the pre-calculation "
"phase"
};
constexpr openspace::properties::Property::PropertyInfo GroundRadianceEmittioninfo = {
"GroundRadianceEmittion",
"Percentage of initial radiance emitted from ground",
"Multiplier of the ground radiance color during the rendering phase"
};
constexpr openspace::properties::Property::PropertyInfo RayleighHeightScaleInfo = {
"RayleighHeightScale",
"Rayleigh Scale Height (KM)",
"It is the vertical distance over which the density and pressure fall by a "
"constant factor"
};
constexpr openspace::properties::Property::PropertyInfo RayleighScatteringCoeffXInfo =
{
"RayleighScatteringCoeffX",
"Rayleigh Scattering Coeff X (x10e-3)",
"Rayleigh sea-level scattering coefficients in meters"
};
constexpr openspace::properties::Property::PropertyInfo RayleighScatteringCoeffYInfo =
{
"RayleighScatteringCoeffY",
"Rayleigh Scattering Coeff Y (x10e-3)",
"Rayleigh sea-level scattering coefficients in meters"
};
constexpr openspace::properties::Property::PropertyInfo RayleighScatteringCoeffZInfo =
{
"RayleighScatteringCoeffZ",
"Rayleigh Scattering Coeff Z (x10e-3)",
"Rayleigh sea-level scattering coefficients in meters"
};
constexpr openspace::properties::Property::PropertyInfo OzoneLayerInfo = {
"Ozone",
"Ozone Layer Enabled",
"Enables/Disable Ozone Layer during pre-calculation phase"
};
constexpr openspace::properties::Property::PropertyInfo OzoneHeightScaleInfo = {
"OzoneLayerHeightScale",
"Ozone Scale Height (KM)",
"It is the vertical distance over which the density and pressure fall by a "
"constant factor"
};
constexpr openspace::properties::Property::PropertyInfo OzoneLayerCoeffXInfo = {
"OzoneLayerCoeffX",
"Ozone Layer Extinction Coeff X (x10e-5)",
"Ozone scattering coefficients in meters"
};
constexpr openspace::properties::Property::PropertyInfo OzoneLayerCoeffYInfo = {
"OzoneLayerCoeffY",
"Ozone Layer Extinction Coeff Y (x10e-5)",
"Ozone scattering coefficients in meters"
};
constexpr openspace::properties::Property::PropertyInfo OzoneLayerCoeffZInfo = {
"OzoneLayerCoeffZ",
"Ozone Layer Extinction Coeff Z (x10e-5)",
"Ozone scattering coefficients in meters"
};
constexpr openspace::properties::Property::PropertyInfo MieHeightScaleInfo = {
"MieHeightScale",
"Mie Scale Height (KM)",
"It is the vertical distance over which the density and pressure fall by a "
"constant factor"
};
constexpr openspace::properties::Property::PropertyInfo MieScatteringCoeffXInfo = {
"MieScatteringCoeffX",
"Mie Scattering Coeff X (x10e-3)",
"Mie sea-level scattering coefficients in meters"
};
constexpr openspace::properties::Property::PropertyInfo MieScatteringCoeffYInfo = {
"MieScatteringCoeffY",
"Mie Scattering Coeff Y (x10e-3)",
"Mie sea-level scattering coefficients in meters"
};
constexpr openspace::properties::Property::PropertyInfo MieScatteringCoeffZInfo = {
"MieScatteringCoeffZ",
"Mie Scattering Coeff Z (x10e-3)",
"Mie sea-level scattering coefficients in meters"
};
constexpr openspace::properties::Property::PropertyInfo
MieScatteringExtinctionPropCoeffInfo =
{
"MieScatteringExtinctionPropCoefficient",
"Mie Scattering/Extinction Proportion Coefficient (%)",
"Mie Scattering/Extinction Proportion Coefficient (%)"
};
constexpr openspace::properties::Property::PropertyInfo MieAsymmetricFactorGInfo = {
"MieAsymmetricFactorG",
"Mie Asymmetric Factor G",
"Averaging of the scattering angle over a high number of scattering events"
};
constexpr openspace::properties::Property::PropertyInfo SunIntensityInfo = {
"SunIntensity",
"Sun Intensity",
"Unitless for now"
};
constexpr openspace::properties::Property::PropertyInfo
EnableSunOnCameraPositionInfo =
{
"SunFollowingCamera",
"Enable Sun On Camera Position",
"When selected the Sun is artificially positioned behind the observer all times"
};
constexpr openspace::properties::Property::PropertyInfo EclipseHardShadowsInfo = {
"EclipseHardShadowsInfo",
"Enable Hard Shadows for Eclipses",
"Enable/Disables hard shadows through the atmosphere"
};
} // namespace
namespace openspace {
documentation::Documentation RenderableAtmosphere::Documentation() {
using namespace documentation;
return {
"RenderableAtmosphere",
"atmosphere_renderable_atmosphere",
{}
};
}
RenderableAtmosphere::RenderableAtmosphere(const ghoul::Dictionary& dictionary)
: Renderable(dictionary)
, _atmosphereHeightP(AtmosphereHeightInfo, 60.0f, 0.1f, 99.0f)
, _groundAverageReflectanceP(AverageGroundReflectanceInfo, 0.1f, 0.0f, 1.0f)
, _groundRadianceEmittionP(GroundRadianceEmittioninfo, 0.3f, 0.0f, 1.0f)
, _rayleighHeightScaleP(RayleighHeightScaleInfo, 8.0f, 0.1f, 20.0f)
, _rayleighScatteringCoeffXP(RayleighScatteringCoeffXInfo, 1.0f, 0.01f, 100.0f)
, _rayleighScatteringCoeffYP(RayleighScatteringCoeffYInfo, 1.0f, 0.01f, 100.0f)
, _rayleighScatteringCoeffZP(RayleighScatteringCoeffZInfo, 1.0f, 0.01f, 100.0f)
, _ozoneEnabledP(OzoneLayerInfo, true)
, _ozoneHeightScaleP(OzoneHeightScaleInfo, 8.0f, 0.1f, 20.0f)
, _ozoneCoeffXP(OzoneLayerCoeffXInfo, 3.426f, 0.01f, 100.0f)
, _ozoneCoeffYP(OzoneLayerCoeffYInfo, 8.298f, 0.01f, 100.0f)
, _ozoneCoeffZP(OzoneLayerCoeffZInfo, 0.356f, 0.01f, 100.0f)
, _mieHeightScaleP(MieHeightScaleInfo, 1.2f, 0.1f, 20.0f)
, _mieScatteringCoeffXP(MieScatteringCoeffXInfo, 4.0f, 0.01f, 1000.0f)
, _mieScatteringCoeffYP(MieScatteringCoeffYInfo, 4.0f, 0.01f, 1000.0f)
, _mieScatteringCoeffZP(MieScatteringCoeffZInfo, 4.0f, 0.01f, 1000.0f)
, _mieScatteringExtinctionPropCoefficientP(
MieScatteringExtinctionPropCoeffInfo,
0.9f,
0.01f,
1.0f
)
, _mieAsymmetricFactorGP(MieAsymmetricFactorGInfo, 0.85f, -1.0f, 1.0f)
, _sunIntensityP(SunIntensityInfo, 50.0f, 0.1f, 1000.0f)
, _sunFollowingCameraEnabledP(EnableSunOnCameraPositionInfo, false)
, _hardShadowsEnabledP(EclipseHardShadowsInfo, false)
, _atmosphereEnabled(false)
, _ozoneLayerEnabled(false)
, _sunFollowingCameraEnabled(false)
, _atmosphereRadius(0.f)
, _atmospherePlanetRadius(0.f)
, _planetAverageGroundReflectance(0.f)
, _planetGroundRadianceEmittion(0.f)
, _rayleighHeightScale(0.f)
, _ozoneHeightScale(0.f)
, _mieHeightScale(0.f)
, _miePhaseConstant(0.f)
, _sunRadianceIntensity(5.f)
, _mieScattExtPropCoefProp(1.f)
, _mieExtinctionCoeff(glm::vec3(0.f))
, _rayleighScatteringCoeff(glm::vec3(0.f))
, _ozoneExtinctionCoeff(glm::vec3(0.f))
, _mieScatteringCoeff(glm::vec3(0.f))
, _saveCalculationsToTexture(false)
, _preCalculatedTexturesScale(1.0)
, _shadowEnabled(false)
, _hardShadows(false)
{
ghoul_precondition(
dictionary.hasKeyAndValue<std::string>(SceneGraphNode::KeyIdentifier),
"RenderableAtmosphere needs the identifier to be specified"
);
documentation::testSpecificationAndThrow(
Documentation(),
dictionary,
"RenderableAtmosphere"
);
const std::string identifier = dictionary.value<std::string>(
SceneGraphNode::KeyIdentifier
);
//================================================================
//======== Reads Shadow (Eclipses) Entries in mod file ===========
//================================================================
ghoul::Dictionary shadowDictionary;
bool success = dictionary.getValue(KeyShadowGroup, shadowDictionary);
bool disableShadows = false;
if (success) {
std::vector<std::pair<std::string, double>> sourceArray;
unsigned int sourceCounter = 1;
while (success) {
std::string sourceName;
success = shadowDictionary.getValue(KeyShadowSource +
std::to_string(sourceCounter) + ".Name", sourceName);
if (success) {
double sourceRadius;
success = shadowDictionary.getValue(KeyShadowSource +
std::to_string(sourceCounter) + ".Radius", sourceRadius);
if (success) {
sourceArray.emplace_back(sourceName, sourceRadius);
}
else {
LWARNING(fmt::format(
"No Radius value expecified for Shadow Source Name '{}' from "
"'{}' planet. Disabling shadows for this planet.",
sourceName,
identifier
));
disableShadows = true;
break;
}
}
sourceCounter++;
}
if (!disableShadows && !sourceArray.empty()) {
success = true;
std::vector<std::pair<std::string, double>> casterArray;
unsigned int casterCounter = 1;
while (success) {
std::string casterName;
success = shadowDictionary.getValue(KeyShadowCaster +
std::to_string(casterCounter) + ".Name", casterName);
if (success) {
double casterRadius;
success = shadowDictionary.getValue(KeyShadowCaster +
std::to_string(casterCounter) + ".Radius", casterRadius);
if (success) {
casterArray.emplace_back(casterName, casterRadius);
}
else {
LWARNING(fmt::format(
"No Radius value expecified for Shadow Caster Name '{}' from "
"'{}' planet. Disabling shadows for this planet.",
casterName,
identifier
));
disableShadows = true;
break;
}
}
casterCounter++;
}
if (!disableShadows && (!sourceArray.empty() && !casterArray.empty())) {
for (const auto & source : sourceArray) {
for (const auto & caster : casterArray) {
ShadowConfiguration sc;
sc.source = source;
sc.caster = caster;
_shadowConfArray.push_back(sc);
}
}
_shadowEnabled = true;
}
}
}
//================================================================
//========== Reads Atmosphere Entries from mod file ==============
//================================================================
bool errorReadingAtmosphereData = false;
ghoul::Dictionary atmosphereDictionary;
success = dictionary.getValue(keyAtmosphere, atmosphereDictionary);
if (success) {
if (!atmosphereDictionary.getValue(keyAtmosphereRadius, _atmosphereRadius)) {
errorReadingAtmosphereData = true;
LWARNINGC(
identifier,
"No Atmosphere Radius value specified for Atmosphere Effects. "
"Disabling atmosphere effects for this planet."
);
}
if (!atmosphereDictionary.getValue(keyPlanetRadius, _atmospherePlanetRadius)) {
errorReadingAtmosphereData = true;
LWARNINGC(
identifier,
"No Planet Radius value expecified for Atmosphere Effects. "
"Disabling atmosphere effects for this planet."
);
}
if (!atmosphereDictionary.getValue(
keyAverageGroundReflectance,
_planetAverageGroundReflectance))
{
errorReadingAtmosphereData = true;
LWARNINGC(
identifier,
"No Average Atmosphere Ground Reflectance value specified for "
"Atmosphere Effects. Disabling atmosphere effects for this planet."
);
}
if (atmosphereDictionary.hasKey(SunIntensityInfo.identifier)) {
_sunRadianceIntensity =
atmosphereDictionary.value<float>(SunIntensityInfo.identifier);
}
if (atmosphereDictionary.hasKey(MieScatteringExtinctionPropCoeffInfo.identifier)) {
_mieScattExtPropCoefProp = atmosphereDictionary.value<float>(
MieScatteringExtinctionPropCoeffInfo.identifier
);
}
if (!atmosphereDictionary.getValue(
GroundRadianceEmittioninfo.identifier,
_planetGroundRadianceEmittion))
{
errorReadingAtmosphereData = true;
LWARNINGC(
identifier,
"No Ground Radiance Emitted percentage value specified for Atmosphere "
"Effects. Disabling atmosphere effects for this planet."
);
}
ghoul::Dictionary rayleighDictionary;
success = atmosphereDictionary.getValue(keyRayleigh, rayleighDictionary);
if (success) {
// Not using right now.
glm::vec3 rayleighWavelengths;
rayleighDictionary.getValue(
"Coefficients.Wavelengths",
rayleighWavelengths
);
if (!rayleighDictionary.getValue(
"Coefficients.Scattering",
_rayleighScatteringCoeff))
{
errorReadingAtmosphereData = true;
LWARNINGC(
identifier,
"No Rayleigh Scattering parameters specified for Atmosphere Effects. "
"Disabling atmosphere effects for this planet."
);
}
if (!rayleighDictionary.getValue(
keyRayleighHeightScale,
_rayleighHeightScale))
{
errorReadingAtmosphereData = true;
LWARNINGC(
identifier,
"No Rayleigh Height Scale value specified for Atmosphere Effects. "
"Disabling atmosphere effects for this planet."
);
}
}
else {
errorReadingAtmosphereData = true;
LWARNINGC(
identifier,
"No Rayleigh parameters specified for Atmosphere Effects. "
"Disabling atmosphere effects for this planet."
);
}
ghoul::Dictionary ozoneDictionary;
success = atmosphereDictionary.getValue(keyOzone, ozoneDictionary);
if (success) {
_ozoneLayerEnabled = true;
if (!ozoneDictionary.getValue(keyOzoneHeightScale, _ozoneHeightScale)) {
_ozoneLayerEnabled = false;
}
if (!ozoneDictionary.getValue(
"Coefficients.Extinction",
_ozoneExtinctionCoeff))
{
_ozoneLayerEnabled = false;
}
}
else {
_ozoneLayerEnabled = false;
}
ghoul::Dictionary mieDictionary;
success = atmosphereDictionary.getValue(keyMie, mieDictionary);
if (success) {
if (!mieDictionary.getValue(keyMieHeightScale, _mieHeightScale)) {
errorReadingAtmosphereData = true;
LWARNINGC(
identifier,
"No Mie Height Scale value specified for Atmosphere Effects. "
"Disabling atmosphere effects for this planet."
);
}
if (!mieDictionary.getValue("Coefficients.Scattering", _mieScatteringCoeff)) {
errorReadingAtmosphereData = true;
LWARNINGC(
identifier,
"No Mie Scattering parameters specified for Atmosphere Effects. "
"Disabling atmosphere effects for this planet."
);
}
if (!mieDictionary.getValue("Coefficients.Extinction", _mieExtinctionCoeff)) {
errorReadingAtmosphereData = true;
LWARNINGC(
identifier,
"No Mie Extinction parameters specified for Atmosphere Effects. "
"Disabling atmosphere effects for this planet."
);
}
if (!mieDictionary.getValue(keyMiePhaseConstant, _miePhaseConstant)) {
errorReadingAtmosphereData = true;
LWARNINGC(
identifier,
"No Mie Phase Constant value specified for Atmosphere Effects. "
"Disabling atmosphere effects for this planet."
);
}
}
else {
errorReadingAtmosphereData = true;
LWARNINGC(
identifier,
"No Mie parameters specified for Atmosphere Effects. "
"Disabling atmosphere effects for this planet."
);
}
ghoul::Dictionary ImageDictionary;
success = atmosphereDictionary.getValue(keyImage, ImageDictionary);
if (success) {
if (ImageDictionary.getValue(keyToneMappingOp, _preCalculatedTexturesScale)) {
LDEBUG(fmt::format(
"Atmosphere Texture Scaled to {}",
_preCalculatedTexturesScale
));
}
}
ghoul::Dictionary debugDictionary;
success = atmosphereDictionary.getValue(keyATMDebug, debugDictionary);
if (success) {
if (debugDictionary.getValue(keyTextureScale, _preCalculatedTexturesScale)) {
LDEBUG(fmt::format(
"Atmosphere Texture Scaled to {}",
_preCalculatedTexturesScale
));
}
if (debugDictionary.getValue(keySaveTextures, _saveCalculationsToTexture)) {
LDEBUG("Saving Precalculated Atmosphere Textures.");
}
}
if (!errorReadingAtmosphereData) {
_atmosphereEnabled = true;
//========================================================
//============== Atmosphere Properties ===================
//========================================================
auto updateAtmosphere = [this]() { updateAtmosphereParameters(); };
_atmosphereHeightP =_atmosphereRadius - _atmospherePlanetRadius;
_atmosphereHeightP.onChange(updateAtmosphere);
addProperty(_atmosphereHeightP);
_groundAverageReflectanceP = _planetAverageGroundReflectance;
_groundAverageReflectanceP.onChange(updateAtmosphere);
addProperty(_groundAverageReflectanceP);
_groundRadianceEmittionP = _planetGroundRadianceEmittion;
_groundRadianceEmittionP.onChange(updateAtmosphere);
addProperty(_groundRadianceEmittionP);
_rayleighHeightScaleP = _rayleighHeightScale;
_rayleighHeightScaleP.onChange(updateAtmosphere);
addProperty(_rayleighHeightScaleP);
_rayleighScatteringCoeffXP = _rayleighScatteringCoeff.x * 1000.0f;
_rayleighScatteringCoeffXP.onChange(updateAtmosphere);
addProperty(_rayleighScatteringCoeffXP);
_rayleighScatteringCoeffYP = _rayleighScatteringCoeff.y * 1000.0f;
_rayleighScatteringCoeffYP.onChange(updateAtmosphere);
addProperty(_rayleighScatteringCoeffYP);
_rayleighScatteringCoeffZP = _rayleighScatteringCoeff.z * 1000.0f;
_rayleighScatteringCoeffZP.onChange(updateAtmosphere);
addProperty(_rayleighScatteringCoeffZP);
_ozoneEnabledP = _ozoneLayerEnabled;
_ozoneEnabledP.onChange(updateAtmosphere);
addProperty(_ozoneEnabledP);
_ozoneHeightScaleP = _ozoneHeightScale;
_ozoneHeightScaleP.onChange(updateAtmosphere);
addProperty(_ozoneHeightScaleP);
_ozoneCoeffXP = _ozoneExtinctionCoeff.x * 100000.0f;
_ozoneCoeffXP.onChange(updateAtmosphere);
addProperty(_ozoneCoeffXP);
_ozoneCoeffYP = _ozoneExtinctionCoeff.y * 100000.0f;
_ozoneCoeffYP.onChange(updateAtmosphere);
addProperty(_ozoneCoeffYP);
_ozoneCoeffZP = _ozoneExtinctionCoeff.z * 100000.0f;
_ozoneCoeffZP.onChange(updateAtmosphere);
addProperty(_ozoneCoeffZP);
_mieHeightScaleP = _mieHeightScale;
_mieHeightScaleP.onChange(updateAtmosphere);
addProperty(_mieHeightScaleP);
_mieScatteringCoeffXP = _mieScatteringCoeff.x * 1000.0f;
_mieScatteringCoeffXP.onChange(updateAtmosphere);
addProperty(_mieScatteringCoeffXP);
_mieScatteringCoeffYP = _mieScatteringCoeff.y * 1000.0f;
_mieScatteringCoeffYP.onChange(updateAtmosphere);
addProperty(_mieScatteringCoeffYP);
_mieScatteringCoeffZP = _mieScatteringCoeff.z * 1000.0f;
_mieScatteringCoeffZP.onChange(updateAtmosphere);
addProperty(_mieScatteringCoeffZP);
_mieScatteringExtinctionPropCoefficientP =
_mieScattExtPropCoefProp != 1.f ? _mieScattExtPropCoefProp :
_mieScatteringCoeff.x / _mieExtinctionCoeff.x;
_mieScatteringExtinctionPropCoefficientP.onChange(updateAtmosphere);
addProperty(_mieScatteringExtinctionPropCoefficientP);
_mieAsymmetricFactorGP = _miePhaseConstant;
_mieAsymmetricFactorGP.onChange(updateAtmosphere);
addProperty(_mieAsymmetricFactorGP);
_sunIntensityP = _sunRadianceIntensity;
_sunIntensityP.onChange(updateAtmosphere);
addProperty(_sunIntensityP);
_sunFollowingCameraEnabledP = _sunFollowingCameraEnabled;
_sunFollowingCameraEnabledP.onChange(updateAtmosphere);
addProperty(_sunFollowingCameraEnabledP);
_hardShadowsEnabledP = _hardShadows;
_hardShadowsEnabledP.onChange(updateAtmosphere);
if (_shadowEnabled) {
addProperty(_hardShadowsEnabledP);
}
}
}
}
void RenderableAtmosphere::deinitializeGL() {
if (_deferredcaster) {
global::deferredcasterManager.detachDeferredcaster(*_deferredcaster);
_deferredcaster = nullptr;
}
}
void RenderableAtmosphere::initializeGL() {
if (_atmosphereEnabled) {
_deferredcaster = std::make_unique<AtmosphereDeferredcaster>();
if (_deferredcaster) {
_deferredcaster->setAtmosphereRadius(_atmosphereRadius);
_deferredcaster->setPlanetRadius(_atmospherePlanetRadius);
_deferredcaster->setPlanetAverageGroundReflectance(
_planetAverageGroundReflectance
);
_deferredcaster->setPlanetGroundRadianceEmittion(
_planetGroundRadianceEmittion
);
_deferredcaster->setRayleighHeightScale(_rayleighHeightScale);
_deferredcaster->enableOzone(_ozoneLayerEnabled);
_deferredcaster->setOzoneHeightScale(_ozoneHeightScale);
_deferredcaster->setMieHeightScale(_mieHeightScale);
_deferredcaster->setMiePhaseConstant(_miePhaseConstant);
_deferredcaster->setSunRadianceIntensity(_sunRadianceIntensity);
_deferredcaster->setRayleighScatteringCoefficients(_rayleighScatteringCoeff);
_deferredcaster->setOzoneExtinctionCoefficients(_ozoneExtinctionCoeff);
_deferredcaster->setMieScatteringCoefficients(_mieScatteringCoeff);
_deferredcaster->setMieExtinctionCoefficients(_mieExtinctionCoeff);
// TODO: Fix the ellipsoid nature of the renderable globe (JCC)
//_deferredcaster->setEllipsoidRadii(_ellipsoid.radii());
_deferredcaster->enableSunFollowing(_sunFollowingCameraEnabled);
_deferredcaster->setPrecalculationTextureScale(_preCalculatedTexturesScale);
if (_saveCalculationsToTexture)
_deferredcaster->enablePrecalculationTexturesSaving();
if (_shadowEnabled) {
_deferredcaster->setShadowConfigArray(_shadowConfArray);
_deferredcaster->setHardShadows(_hardShadows);
}
_deferredcaster->initialize();
}
global::deferredcasterManager.attachDeferredcaster(*_deferredcaster);
}
return;
}
bool RenderableAtmosphere::isReady() const {
bool ready = true;
ready &= (_deferredcaster != nullptr);
return ready;
}
glm::dmat4 RenderableAtmosphere::computeModelTransformMatrix(
const openspace::TransformData& transformData)
{
// scale the planet to appropriate size since the planet is a unit sphere
return glm::translate(glm::dmat4(1.0), transformData.translation) * // Translation
glm::dmat4(transformData.rotation) * // Spice rotation
glm::dmat4(glm::scale(glm::dmat4(1.0), glm::dvec3(transformData.scale)));
}
void RenderableAtmosphere::render(const RenderData& data, RendererTasks& renderTask) {
if (_atmosphereEnabled) {
DeferredcasterTask task{ _deferredcaster.get(), data };
renderTask.deferredcasterTasks.push_back(task);
}
}
void RenderableAtmosphere::update(const UpdateData& data) {
_stateMatrix = data.modelTransform.rotation;
if (_deferredcaster) {
_deferredcaster->setTime(data.time.j2000Seconds());
glm::dmat4 modelTransform = computeModelTransformMatrix(data.modelTransform);
_deferredcaster->setModelTransform(modelTransform);
_deferredcaster->update(data);
}
}
void RenderableAtmosphere::updateAtmosphereParameters() {
bool executeComputation = true;
if (_sunRadianceIntensity != _sunIntensityP ||
_planetGroundRadianceEmittion != _groundRadianceEmittionP ||
_sunFollowingCameraEnabled != _sunFollowingCameraEnabledP ||
_hardShadows != _hardShadowsEnabledP) {
executeComputation = false;
}
_atmosphereRadius = _atmospherePlanetRadius + _atmosphereHeightP;
_planetAverageGroundReflectance = _groundAverageReflectanceP;
_planetGroundRadianceEmittion = _groundRadianceEmittionP;
_rayleighHeightScale = _rayleighHeightScaleP;
_rayleighScatteringCoeff = glm::vec3(
_rayleighScatteringCoeffXP * 0.001f,
_rayleighScatteringCoeffYP * 0.001f,
_rayleighScatteringCoeffZP * 0.001f
);
_ozoneLayerEnabled = _ozoneEnabledP;
_ozoneHeightScale = _ozoneHeightScaleP;
_ozoneExtinctionCoeff = glm::vec3(_ozoneCoeffXP.value() * 0.00001f,
_ozoneCoeffYP.value() * 0.00001f,
_ozoneCoeffZP.value() * 0.00001f);
_mieHeightScale = _mieHeightScaleP;
_mieScatteringCoeff = glm::vec3(
_mieScatteringCoeffXP * 0.001f,
_mieScatteringCoeffYP * 0.001f,
_mieScatteringCoeffZP * 0.001f
);
_mieExtinctionCoeff = _mieScatteringCoeff * (1.0f /
static_cast<float>(_mieScatteringExtinctionPropCoefficientP));
_miePhaseConstant = _mieAsymmetricFactorGP;
_sunRadianceIntensity = _sunIntensityP;
_sunFollowingCameraEnabled = _sunFollowingCameraEnabledP;
_hardShadows = _hardShadowsEnabledP;
if (_deferredcaster) {
_deferredcaster->setAtmosphereRadius(_atmosphereRadius);
_deferredcaster->setPlanetRadius(_atmospherePlanetRadius);
_deferredcaster->setPlanetAverageGroundReflectance(
_planetAverageGroundReflectance
);
_deferredcaster->setPlanetGroundRadianceEmittion(_planetGroundRadianceEmittion);
_deferredcaster->setRayleighHeightScale(_rayleighHeightScale);
_deferredcaster->enableOzone(_ozoneLayerEnabled);
_deferredcaster->setOzoneHeightScale(_ozoneHeightScale);
_deferredcaster->setMieHeightScale(_mieHeightScale);
_deferredcaster->setMiePhaseConstant(_miePhaseConstant);
_deferredcaster->setSunRadianceIntensity(_sunRadianceIntensity);
_deferredcaster->setRayleighScatteringCoefficients(_rayleighScatteringCoeff);
_deferredcaster->setOzoneExtinctionCoefficients(_ozoneExtinctionCoeff);
_deferredcaster->setMieScatteringCoefficients(_mieScatteringCoeff);
_deferredcaster->setMieExtinctionCoefficients(_mieExtinctionCoeff);
_deferredcaster->enableSunFollowing(_sunFollowingCameraEnabled);
//_deferredcaster->setEllipsoidRadii(_ellipsoid.radii());
if (_shadowEnabled) {
_deferredcaster->setHardShadows(_hardShadows);
}
if (executeComputation) {
_deferredcaster->preCalculateAtmosphereParam();
}
}
}
} // namespace openspace
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