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llsettingssky.cpp
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llsettingssky.cpp
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/**
* @file llsettingssky.cpp
* @author optional
* @brief A base class for asset based settings groups.
*
* $LicenseInfo:2011&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2017, 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 "llsettingssky.h"
#include "indra_constants.h"
#include <algorithm>
#include "lltrace.h"
#include "llfasttimer.h"
#include "v3colorutil.h"
#include <boost/bind.hpp>
//=========================================================================
namespace
{
const LLUUID IMG_BLOOM1("3c59f7fe-9dc8-47f9-8aaf-a9dd1fbc3bef");
const LLUUID IMG_RAINBOW("11b4c57c-56b3-04ed-1f82-2004363882e4");
const LLUUID IMG_HALO("12149143-f599-91a7-77ac-b52a3c0f59cd");
}
namespace {
LLQuaternion convert_azimuth_and_altitude_to_quat(F32 azimuth, F32 altitude)
{
F32 sinTheta = sin(azimuth);
F32 cosTheta = cos(azimuth);
F32 sinPhi = sin(altitude);
F32 cosPhi = cos(altitude);
LLVector3 dir;
// +x right, +z up, +y at...
dir.mV[0] = cosTheta * cosPhi;
dir.mV[1] = sinTheta * cosPhi;
dir.mV[2] = sinPhi;
LLVector3 axis = LLVector3::x_axis % dir;
axis.normalize();
F32 angle = acos(LLVector3::x_axis * dir);
LLQuaternion quat;
quat.setAngleAxis(angle, axis);
return quat;
}
}
//=========================================================================
const std::string LLSettingsSky::SETTING_AMBIENT("ambient");
const std::string LLSettingsSky::SETTING_BLUE_DENSITY("blue_density");
const std::string LLSettingsSky::SETTING_BLUE_HORIZON("blue_horizon");
const std::string LLSettingsSky::SETTING_DENSITY_MULTIPLIER("density_multiplier");
const std::string LLSettingsSky::SETTING_DISTANCE_MULTIPLIER("distance_multiplier");
const std::string LLSettingsSky::SETTING_HAZE_DENSITY("haze_density");
const std::string LLSettingsSky::SETTING_HAZE_HORIZON("haze_horizon");
const std::string LLSettingsSky::SETTING_BLOOM_TEXTUREID("bloom_id");
const std::string LLSettingsSky::SETTING_RAINBOW_TEXTUREID("rainbow_id");
const std::string LLSettingsSky::SETTING_HALO_TEXTUREID("halo_id");
const std::string LLSettingsSky::SETTING_CLOUD_COLOR("cloud_color");
const std::string LLSettingsSky::SETTING_CLOUD_POS_DENSITY1("cloud_pos_density1");
const std::string LLSettingsSky::SETTING_CLOUD_POS_DENSITY2("cloud_pos_density2");
const std::string LLSettingsSky::SETTING_CLOUD_SCALE("cloud_scale");
const std::string LLSettingsSky::SETTING_CLOUD_SCROLL_RATE("cloud_scroll_rate");
const std::string LLSettingsSky::SETTING_CLOUD_SHADOW("cloud_shadow");
const std::string LLSettingsSky::SETTING_CLOUD_TEXTUREID("cloud_id");
const std::string LLSettingsSky::SETTING_CLOUD_VARIANCE("cloud_variance");
const std::string LLSettingsSky::SETTING_DOME_OFFSET("dome_offset");
const std::string LLSettingsSky::SETTING_DOME_RADIUS("dome_radius");
const std::string LLSettingsSky::SETTING_GAMMA("gamma");
const std::string LLSettingsSky::SETTING_GLOW("glow");
const std::string LLSettingsSky::SETTING_LIGHT_NORMAL("lightnorm");
const std::string LLSettingsSky::SETTING_MAX_Y("max_y");
const std::string LLSettingsSky::SETTING_MOON_ROTATION("moon_rotation");
const std::string LLSettingsSky::SETTING_MOON_SCALE("moon_scale");
const std::string LLSettingsSky::SETTING_MOON_TEXTUREID("moon_id");
const std::string LLSettingsSky::SETTING_MOON_BRIGHTNESS("moon_brightness");
const std::string LLSettingsSky::SETTING_STAR_BRIGHTNESS("star_brightness");
const std::string LLSettingsSky::SETTING_SUNLIGHT_COLOR("sunlight_color");
const std::string LLSettingsSky::SETTING_SUN_ROTATION("sun_rotation");
const std::string LLSettingsSky::SETTING_SUN_SCALE("sun_scale");
const std::string LLSettingsSky::SETTING_SUN_TEXTUREID("sun_id");
const std::string LLSettingsSky::SETTING_LEGACY_EAST_ANGLE("east_angle");
const std::string LLSettingsSky::SETTING_LEGACY_ENABLE_CLOUD_SCROLL("enable_cloud_scroll");
const std::string LLSettingsSky::SETTING_LEGACY_SUN_ANGLE("sun_angle");
// these are new settings for the advanced atmospherics model
const std::string LLSettingsSky::SETTING_PLANET_RADIUS("planet_radius");
const std::string LLSettingsSky::SETTING_SKY_BOTTOM_RADIUS("sky_bottom_radius");
const std::string LLSettingsSky::SETTING_SKY_TOP_RADIUS("sky_top_radius");
const std::string LLSettingsSky::SETTING_SUN_ARC_RADIANS("sun_arc_radians");
const std::string LLSettingsSky::SETTING_RAYLEIGH_CONFIG("rayleigh_config");
const std::string LLSettingsSky::SETTING_MIE_CONFIG("mie_config");
const std::string LLSettingsSky::SETTING_MIE_ANISOTROPY_FACTOR("anisotropy");
const std::string LLSettingsSky::SETTING_ABSORPTION_CONFIG("absorption_config");
const std::string LLSettingsSky::KEY_DENSITY_PROFILE("density");
const std::string LLSettingsSky::SETTING_DENSITY_PROFILE_WIDTH("width");
const std::string LLSettingsSky::SETTING_DENSITY_PROFILE_EXP_TERM("exp_term");
const std::string LLSettingsSky::SETTING_DENSITY_PROFILE_EXP_SCALE_FACTOR("exp_scale");
const std::string LLSettingsSky::SETTING_DENSITY_PROFILE_LINEAR_TERM("linear_term");
const std::string LLSettingsSky::SETTING_DENSITY_PROFILE_CONSTANT_TERM("constant_term");
const std::string LLSettingsSky::SETTING_SKY_MOISTURE_LEVEL("moisture_level");
const std::string LLSettingsSky::SETTING_SKY_DROPLET_RADIUS("droplet_radius");
const std::string LLSettingsSky::SETTING_SKY_ICE_LEVEL("ice_level");
const std::string LLSettingsSky::SETTING_REFLECTION_PROBE_AMBIANCE("reflection_probe_ambiance");
const LLUUID LLSettingsSky::DEFAULT_ASSET_ID("651510b8-5f4d-8991-1592-e7eeab2a5a06");
F32 LLSettingsSky::sAutoAdjustProbeAmbiance = 1.f;
static const LLUUID DEFAULT_SUN_ID("32bfbcea-24b1-fb9d-1ef9-48a28a63730f"); // dataserver
static const LLUUID DEFAULT_MOON_ID("d07f6eed-b96a-47cd-b51d-400ad4a1c428"); // dataserver
static const LLUUID DEFAULT_CLOUD_ID("1dc1368f-e8fe-f02d-a08d-9d9f11c1af6b");
const std::string LLSettingsSky::SETTING_LEGACY_HAZE("legacy_haze");
const F32 LLSettingsSky::DOME_OFFSET(0.96f);
const F32 LLSettingsSky::DOME_RADIUS(15000.f);
namespace
{
LLSettingsSky::validation_list_t legacyHazeValidationList()
{
static LLSettingsBase::validation_list_t legacyHazeValidation;
if (legacyHazeValidation.empty())
{
legacyHazeValidation.push_back(LLSettingsBase::Validator(LLSettingsSky::SETTING_AMBIENT, false, LLSD::TypeArray,
boost::bind(&LLSettingsBase::Validator::verifyVectorMinMax, _1, _2,
llsd::array(0.0f, 0.0f, 0.0f, "*"),
llsd::array(3.0f, 3.0f, 3.0f, "*"))));
legacyHazeValidation.push_back(LLSettingsBase::Validator(LLSettingsSky::SETTING_BLUE_DENSITY, false, LLSD::TypeArray,
boost::bind(&LLSettingsBase::Validator::verifyVectorMinMax, _1, _2,
llsd::array(0.0f, 0.0f, 0.0f, "*"),
llsd::array(3.0f, 3.0f, 3.0f, "*"))));
legacyHazeValidation.push_back(LLSettingsBase::Validator(LLSettingsSky::SETTING_BLUE_HORIZON, false, LLSD::TypeArray,
boost::bind(&LLSettingsBase::Validator::verifyVectorMinMax, _1, _2,
llsd::array(0.0f, 0.0f, 0.0f, "*"),
llsd::array(3.0f, 3.0f, 3.0f, "*"))));
legacyHazeValidation.push_back(LLSettingsBase::Validator(LLSettingsSky::SETTING_HAZE_DENSITY, false, LLSD::TypeReal,
boost::bind(&LLSettingsBase::Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 5.0f))));
legacyHazeValidation.push_back(LLSettingsBase::Validator(LLSettingsSky::SETTING_HAZE_HORIZON, false, LLSD::TypeReal,
boost::bind(&LLSettingsBase::Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 5.0f))));
legacyHazeValidation.push_back(LLSettingsBase::Validator(LLSettingsSky::SETTING_DENSITY_MULTIPLIER, false, LLSD::TypeReal,
boost::bind(&LLSettingsBase::Validator::verifyFloatRange, _1, _2, llsd::array(0.0001f, 2.0f))));
legacyHazeValidation.push_back(LLSettingsBase::Validator(LLSettingsSky::SETTING_DISTANCE_MULTIPLIER, false, LLSD::TypeReal,
boost::bind(&LLSettingsBase::Validator::verifyFloatRange, _1, _2, llsd::array(0.0001f, 1000.0f))));
}
return legacyHazeValidation;
}
LLSettingsSky::validation_list_t rayleighValidationList()
{
static LLSettingsBase::validation_list_t rayleighValidation;
if (rayleighValidation.empty())
{
rayleighValidation.push_back(LLSettingsBase::Validator(LLSettingsSky::SETTING_DENSITY_PROFILE_WIDTH, false, LLSD::TypeReal,
boost::bind(&LLSettingsBase::Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 32768.0f))));
rayleighValidation.push_back(LLSettingsBase::Validator(LLSettingsSky::SETTING_DENSITY_PROFILE_EXP_TERM, false, LLSD::TypeReal,
boost::bind(&LLSettingsBase::Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 2.0f))));
rayleighValidation.push_back(LLSettingsBase::Validator(LLSettingsSky::SETTING_DENSITY_PROFILE_EXP_SCALE_FACTOR, false, LLSD::TypeReal,
boost::bind(&LLSettingsBase::Validator::verifyFloatRange, _1, _2, llsd::array(-1.0f, 1.0f))));
rayleighValidation.push_back(LLSettingsBase::Validator(LLSettingsSky::SETTING_DENSITY_PROFILE_LINEAR_TERM, false, LLSD::TypeReal,
boost::bind(&LLSettingsBase::Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 2.0f))));
rayleighValidation.push_back(LLSettingsBase::Validator(LLSettingsSky::SETTING_DENSITY_PROFILE_CONSTANT_TERM, false, LLSD::TypeReal,
boost::bind(&LLSettingsBase::Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 1.0f))));
}
return rayleighValidation;
}
LLSettingsSky::validation_list_t absorptionValidationList()
{
static LLSettingsBase::validation_list_t absorptionValidation;
if (absorptionValidation.empty())
{
absorptionValidation.push_back(LLSettingsBase::Validator(LLSettingsSky::SETTING_DENSITY_PROFILE_WIDTH, false, LLSD::TypeReal,
boost::bind(&LLSettingsBase::Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 32768.0f))));
absorptionValidation.push_back(LLSettingsBase::Validator(LLSettingsSky::SETTING_DENSITY_PROFILE_EXP_TERM, false, LLSD::TypeReal,
boost::bind(&LLSettingsBase::Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 2.0f))));
absorptionValidation.push_back(LLSettingsBase::Validator(LLSettingsSky::SETTING_DENSITY_PROFILE_EXP_SCALE_FACTOR, false, LLSD::TypeReal,
boost::bind(&LLSettingsBase::Validator::verifyFloatRange, _1, _2, llsd::array(-1.0f, 1.0f))));
absorptionValidation.push_back(LLSettingsBase::Validator(LLSettingsSky::SETTING_DENSITY_PROFILE_LINEAR_TERM, false, LLSD::TypeReal,
boost::bind(&LLSettingsBase::Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 2.0f))));
absorptionValidation.push_back(LLSettingsBase::Validator(LLSettingsSky::SETTING_DENSITY_PROFILE_CONSTANT_TERM, false, LLSD::TypeReal,
boost::bind(&LLSettingsBase::Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 1.0f))));
}
return absorptionValidation;
}
LLSettingsSky::validation_list_t mieValidationList()
{
static LLSettingsBase::validation_list_t mieValidation;
if (mieValidation.empty())
{
mieValidation.push_back(LLSettingsBase::Validator(LLSettingsSky::SETTING_DENSITY_PROFILE_WIDTH, false, LLSD::TypeReal,
boost::bind(&LLSettingsBase::Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 32768.0f))));
mieValidation.push_back(LLSettingsBase::Validator(LLSettingsSky::SETTING_DENSITY_PROFILE_EXP_TERM, false, LLSD::TypeReal,
boost::bind(&LLSettingsBase::Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 2.0f))));
mieValidation.push_back(LLSettingsBase::Validator(LLSettingsSky::SETTING_DENSITY_PROFILE_EXP_SCALE_FACTOR, false, LLSD::TypeReal,
boost::bind(&LLSettingsBase::Validator::verifyFloatRange, _1, _2, llsd::array(-1.0f, 1.0f))));
mieValidation.push_back(LLSettingsBase::Validator(LLSettingsSky::SETTING_DENSITY_PROFILE_LINEAR_TERM, false, LLSD::TypeReal,
boost::bind(&LLSettingsBase::Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 2.0f))));
mieValidation.push_back(LLSettingsBase::Validator(LLSettingsSky::SETTING_DENSITY_PROFILE_CONSTANT_TERM, false, LLSD::TypeReal,
boost::bind(&LLSettingsBase::Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 1.0f))));
mieValidation.push_back(LLSettingsBase::Validator(LLSettingsSky::SETTING_MIE_ANISOTROPY_FACTOR, false, LLSD::TypeReal,
boost::bind(&LLSettingsBase::Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 1.0f))));
}
return mieValidation;
}
bool validateLegacyHaze(LLSD &value, U32 flags)
{
LLSettingsSky::validation_list_t legacyHazeValidations = legacyHazeValidationList();
llassert(value.type() == LLSD::TypeMap);
LLSD result = LLSettingsBase::settingValidation(value, legacyHazeValidations, flags);
if (result["errors"].size() > 0)
{
LL_WARNS("SETTINGS") << "Legacy Haze Config Validation errors: " << result["errors"] << LL_ENDL;
return false;
}
if (result["warnings"].size() > 0)
{
LL_WARNS("SETTINGS") << "Legacy Haze Config Validation warnings: " << result["warnings"] << LL_ENDL;
return false;
}
return true;
}
bool validateRayleighLayers(LLSD &value, U32 flags)
{
LLSettingsSky::validation_list_t rayleighValidations = rayleighValidationList();
if (value.isArray())
{
bool allGood = true;
for (LLSD::array_iterator itf = value.beginArray(); itf != value.endArray(); ++itf)
{
LLSD& layerConfig = (*itf);
if (layerConfig.type() == LLSD::TypeMap)
{
if (!validateRayleighLayers(layerConfig, flags))
{
allGood = false;
}
}
else if (layerConfig.type() == LLSD::TypeArray)
{
return validateRayleighLayers(layerConfig, flags);
}
else
{
return LLSettingsBase::settingValidation(value, rayleighValidations, flags);
}
}
return allGood;
}
llassert(value.type() == LLSD::TypeMap);
LLSD result = LLSettingsBase::settingValidation(value, rayleighValidations, flags);
if (result["errors"].size() > 0)
{
LL_WARNS("SETTINGS") << "Rayleigh Config Validation errors: " << result["errors"] << LL_ENDL;
return false;
}
if (result["warnings"].size() > 0)
{
LL_WARNS("SETTINGS") << "Rayleigh Config Validation warnings: " << result["errors"] << LL_ENDL;
return false;
}
return true;
}
bool validateAbsorptionLayers(LLSD &value, U32 flags)
{
LLSettingsBase::validation_list_t absorptionValidations = absorptionValidationList();
if (value.isArray())
{
bool allGood = true;
for (LLSD::array_iterator itf = value.beginArray(); itf != value.endArray(); ++itf)
{
LLSD& layerConfig = (*itf);
if (layerConfig.type() == LLSD::TypeMap)
{
if (!validateAbsorptionLayers(layerConfig, flags))
{
allGood = false;
}
}
else if (layerConfig.type() == LLSD::TypeArray)
{
return validateAbsorptionLayers(layerConfig, flags);
}
else
{
return LLSettingsBase::settingValidation(value, absorptionValidations, flags);
}
}
return allGood;
}
llassert(value.type() == LLSD::TypeMap);
LLSD result = LLSettingsBase::settingValidation(value, absorptionValidations, flags);
if (result["errors"].size() > 0)
{
LL_WARNS("SETTINGS") << "Absorption Config Validation errors: " << result["errors"] << LL_ENDL;
return false;
}
if (result["warnings"].size() > 0)
{
LL_WARNS("SETTINGS") << "Absorption Config Validation warnings: " << result["errors"] << LL_ENDL;
return false;
}
return true;
}
bool validateMieLayers(LLSD &value, U32 flags)
{
LLSettingsBase::validation_list_t mieValidations = mieValidationList();
if (value.isArray())
{
bool allGood = true;
for (LLSD::array_iterator itf = value.beginArray(); itf != value.endArray(); ++itf)
{
LLSD& layerConfig = (*itf);
if (layerConfig.type() == LLSD::TypeMap)
{
if (!validateMieLayers(layerConfig, flags))
{
allGood = false;
}
}
else if (layerConfig.type() == LLSD::TypeArray)
{
return validateMieLayers(layerConfig, flags);
}
else
{
return LLSettingsBase::settingValidation(value, mieValidations, flags);
}
}
return allGood;
}
LLSD result = LLSettingsBase::settingValidation(value, mieValidations, flags);
if (result["errors"].size() > 0)
{
LL_WARNS("SETTINGS") << "Mie Config Validation errors: " << result["errors"] << LL_ENDL;
return false;
}
if (result["warnings"].size() > 0)
{
LL_WARNS("SETTINGS") << "Mie Config Validation warnings: " << result["warnings"] << LL_ENDL;
return false;
}
return true;
}
}
//=========================================================================
LLSettingsSky::LLSettingsSky(const LLSD &data) :
LLSettingsBase(data),
mNextSunTextureId(),
mNextMoonTextureId(),
mNextCloudTextureId(),
mNextBloomTextureId(),
mNextRainbowTextureId(),
mNextHaloTextureId()
{
mCanAutoAdjust = !data.has(SETTING_REFLECTION_PROBE_AMBIANCE);
}
LLSettingsSky::LLSettingsSky():
LLSettingsBase(),
mNextSunTextureId(),
mNextMoonTextureId(),
mNextCloudTextureId(),
mNextBloomTextureId(),
mNextRainbowTextureId(),
mNextHaloTextureId()
{
}
void LLSettingsSky::replaceSettings(LLSD settings)
{
LLSettingsBase::replaceSettings(settings);
mNextSunTextureId.setNull();
mNextMoonTextureId.setNull();
mNextCloudTextureId.setNull();
mNextBloomTextureId.setNull();
mNextRainbowTextureId.setNull();
mNextHaloTextureId.setNull();
mCanAutoAdjust = !settings.has(SETTING_REFLECTION_PROBE_AMBIANCE);
}
void LLSettingsSky::replaceWithSky(LLSettingsSky::ptr_t pother)
{
replaceWith(pother);
mNextSunTextureId = pother->mNextSunTextureId;
mNextMoonTextureId = pother->mNextMoonTextureId;
mNextCloudTextureId = pother->mNextCloudTextureId;
mNextBloomTextureId = pother->mNextBloomTextureId;
mNextRainbowTextureId = pother->mNextRainbowTextureId;
mNextHaloTextureId = pother->mNextHaloTextureId;
mCanAutoAdjust = pother->mCanAutoAdjust;
}
void LLSettingsSky::blend(const LLSettingsBase::ptr_t &end, F64 blendf)
{
LL_PROFILE_ZONE_SCOPED_CATEGORY_ENVIRONMENT;
llassert(getSettingsType() == end->getSettingsType());
LLSettingsSky::ptr_t other = PTR_NAMESPACE::dynamic_pointer_cast<LLSettingsSky>(end);
if (other)
{
if (other->mSettings.has(SETTING_LEGACY_HAZE))
{
if (!mSettings.has(SETTING_LEGACY_HAZE) || !mSettings[SETTING_LEGACY_HAZE].has(SETTING_AMBIENT))
{
// Special case since SETTING_AMBIENT is both in outer and legacy maps, we prioritize legacy one
// see getAmbientColor(), we are about to replaceSettings(), so we are free to set it
setAmbientColor(getAmbientColor());
}
}
else
{
if (mSettings.has(SETTING_LEGACY_HAZE) && mSettings[SETTING_LEGACY_HAZE].has(SETTING_AMBIENT))
{
// Special case due to ambient's duality
// We need to match 'other's' structure for interpolation.
// We are free to change mSettings, since we are about to reset it
mSettings[SETTING_AMBIENT] = getAmbientColor().getValue();
mSettings[SETTING_LEGACY_HAZE].erase(SETTING_AMBIENT);
}
}
LLUUID cloud_noise_id = getCloudNoiseTextureId();
LLUUID cloud_noise_id_next = other->getCloudNoiseTextureId();
F64 cloud_shadow = 0;
if (!cloud_noise_id.isNull() && cloud_noise_id_next.isNull())
{
// If there is no cloud texture in destination, reduce coverage to imitate disappearance
// See LLDrawPoolWLSky::renderSkyClouds... we don't blend present texture with null
// Note: Probably can be done by shader
cloud_shadow = lerp(mSettings[SETTING_CLOUD_SHADOW].asReal(), (F64)0.f, blendf);
cloud_noise_id_next = cloud_noise_id;
}
else if (cloud_noise_id.isNull() && !cloud_noise_id_next.isNull())
{
// Source has no cloud texture, reduce initial coverage to imitate appearance
// use same texture as destination
cloud_shadow = lerp((F64)0.f, other->mSettings[SETTING_CLOUD_SHADOW].asReal(), blendf);
setCloudNoiseTextureId(cloud_noise_id_next);
}
else
{
cloud_shadow = lerp(mSettings[SETTING_CLOUD_SHADOW].asReal(), other->mSettings[SETTING_CLOUD_SHADOW].asReal(), blendf);
}
LLSD blenddata = interpolateSDMap(mSettings, other->mSettings, other->getParameterMap(), blendf);
blenddata[SETTING_CLOUD_SHADOW] = LLSD::Real(cloud_shadow);
replaceSettings(blenddata);
mNextSunTextureId = other->getSunTextureId();
mNextMoonTextureId = other->getMoonTextureId();
mNextCloudTextureId = cloud_noise_id_next;
mNextBloomTextureId = other->getBloomTextureId();
mNextRainbowTextureId = other->getRainbowTextureId();
mNextHaloTextureId = other->getHaloTextureId();
}
else
{
LL_WARNS("SETTINGS") << "Could not cast end settings to sky. No blend performed." << LL_ENDL;
}
setBlendFactor(blendf);
}
LLSettingsSky::stringset_t LLSettingsSky::getSkipInterpolateKeys() const
{
static stringset_t skipSet;
if (skipSet.empty())
{
skipSet = LLSettingsBase::getSkipInterpolateKeys();
skipSet.insert(SETTING_RAYLEIGH_CONFIG);
skipSet.insert(SETTING_MIE_CONFIG);
skipSet.insert(SETTING_ABSORPTION_CONFIG);
skipSet.insert(SETTING_CLOUD_SHADOW);
}
return skipSet;
}
LLSettingsSky::stringset_t LLSettingsSky::getSlerpKeys() const
{
static stringset_t slepSet;
if (slepSet.empty())
{
slepSet.insert(SETTING_SUN_ROTATION);
slepSet.insert(SETTING_MOON_ROTATION);
}
return slepSet;
}
LLSettingsSky::validation_list_t LLSettingsSky::getValidationList() const
{
return LLSettingsSky::validationList();
}
LLSettingsSky::validation_list_t LLSettingsSky::validationList()
{
static validation_list_t validation;
if (validation.empty())
{
validation.push_back(Validator(SETTING_BLOOM_TEXTUREID, true, LLSD::TypeUUID));
validation.push_back(Validator(SETTING_RAINBOW_TEXTUREID, false, LLSD::TypeUUID));
validation.push_back(Validator(SETTING_HALO_TEXTUREID, false, LLSD::TypeUUID));
validation.push_back(Validator(SETTING_CLOUD_COLOR, true, LLSD::TypeArray,
boost::bind(&Validator::verifyVectorMinMax, _1, _2,
llsd::array(0.0f, 0.0f, 0.0f, "*"),
llsd::array(1.0f, 1.0f, 1.0f, "*"))));
validation.push_back(Validator(SETTING_CLOUD_POS_DENSITY1, true, LLSD::TypeArray,
boost::bind(&Validator::verifyVectorMinMax, _1, _2,
llsd::array(0.0f, 0.0f, 0.0f, "*"),
llsd::array(1.0f, 1.0f, 3.0f, "*"))));
validation.push_back(Validator(SETTING_CLOUD_POS_DENSITY2, true, LLSD::TypeArray,
boost::bind(&Validator::verifyVectorMinMax, _1, _2,
llsd::array(0.0f, 0.0f, 0.0f, "*"),
llsd::array(1.0f, 1.0f, 1.0f, "*"))));
validation.push_back(Validator(SETTING_CLOUD_SCALE, true, LLSD::TypeReal,
boost::bind(&Validator::verifyFloatRange, _1, _2, llsd::array(0.001f, 3.0f))));
validation.push_back(Validator(SETTING_CLOUD_SCROLL_RATE, true, LLSD::TypeArray,
boost::bind(&Validator::verifyVectorMinMax, _1, _2,
llsd::array(-50.0f, -50.0f),
llsd::array(50.0f, 50.0f))));
validation.push_back(Validator(SETTING_CLOUD_SHADOW, true, LLSD::TypeReal,
boost::bind(&Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 1.0f))));
validation.push_back(Validator(SETTING_CLOUD_TEXTUREID, false, LLSD::TypeUUID));
validation.push_back(Validator(SETTING_CLOUD_VARIANCE, false, LLSD::TypeReal,
boost::bind(&Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 1.0f))));
validation.push_back(Validator(SETTING_DOME_OFFSET, false, LLSD::TypeReal,
boost::bind(&Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 1.0f))));
validation.push_back(Validator(SETTING_DOME_RADIUS, false, LLSD::TypeReal,
boost::bind(&Validator::verifyFloatRange, _1, _2, llsd::array(1000.0f, 2000.0f))));
validation.push_back(Validator(SETTING_GAMMA, true, LLSD::TypeReal,
boost::bind(&Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 20.0f))));
validation.push_back(Validator(SETTING_GLOW, true, LLSD::TypeArray,
boost::bind(&Validator::verifyVectorMinMax, _1, _2,
llsd::array(0.2f, "*", -10.0f, "*"),
llsd::array(40.0f, "*", 10.0f, "*"))));
validation.push_back(Validator(SETTING_MAX_Y, true, LLSD::TypeReal,
boost::bind(&Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 10000.0f))));
validation.push_back(Validator(SETTING_MOON_ROTATION, true, LLSD::TypeArray, &Validator::verifyQuaternionNormal));
validation.push_back(Validator(SETTING_MOON_SCALE, false, LLSD::TypeReal,
boost::bind(&Validator::verifyFloatRange, _1, _2, llsd::array(0.25f, 20.0f)), LLSD::Real(1.0)));
validation.push_back(Validator(SETTING_MOON_TEXTUREID, false, LLSD::TypeUUID));
validation.push_back(Validator(SETTING_MOON_BRIGHTNESS, false, LLSD::TypeReal,
boost::bind(&Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 1.0f))));
validation.push_back(Validator(SETTING_STAR_BRIGHTNESS, true, LLSD::TypeReal,
boost::bind(&Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 500.0f))));
validation.push_back(Validator(SETTING_SUNLIGHT_COLOR, true, LLSD::TypeArray,
boost::bind(&Validator::verifyVectorMinMax, _1, _2,
llsd::array(0.0f, 0.0f, 0.0f, "*"),
llsd::array(3.0f, 3.0f, 3.0f, "*"))));
validation.push_back(Validator(SETTING_SUN_ROTATION, true, LLSD::TypeArray, &Validator::verifyQuaternionNormal));
validation.push_back(Validator(SETTING_SUN_SCALE, false, LLSD::TypeReal,
boost::bind(&Validator::verifyFloatRange, _1, _2, llsd::array(0.25f, 20.0f)), LLSD::Real(1.0)));
validation.push_back(Validator(SETTING_SUN_TEXTUREID, false, LLSD::TypeUUID));
validation.push_back(Validator(SETTING_PLANET_RADIUS, true, LLSD::TypeReal,
boost::bind(&Validator::verifyFloatRange, _1, _2, llsd::array(1000.0f, 32768.0f))));
validation.push_back(Validator(SETTING_SKY_BOTTOM_RADIUS, true, LLSD::TypeReal,
boost::bind(&Validator::verifyFloatRange, _1, _2, llsd::array(1000.0f, 32768.0f))));
validation.push_back(Validator(SETTING_SKY_TOP_RADIUS, true, LLSD::TypeReal,
boost::bind(&Validator::verifyFloatRange, _1, _2, llsd::array(1000.0f, 32768.0f))));
validation.push_back(Validator(SETTING_SUN_ARC_RADIANS, true, LLSD::TypeReal,
boost::bind(&Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 0.1f))));
validation.push_back(Validator(SETTING_SKY_MOISTURE_LEVEL, false, LLSD::TypeReal,
boost::bind(&Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 1.0f))));
validation.push_back(Validator(SETTING_SKY_DROPLET_RADIUS, false, LLSD::TypeReal,
boost::bind(&Validator::verifyFloatRange, _1, _2, llsd::array(5.0f, 1000.0f))));
validation.push_back(Validator(SETTING_SKY_ICE_LEVEL, false, LLSD::TypeReal,
boost::bind(&Validator::verifyFloatRange, _1, _2, llsd::array(0.0f, 1.0f))));
validation.push_back(Validator(SETTING_REFLECTION_PROBE_AMBIANCE, false, LLSD::TypeReal,
boost::bind(&Validator::verifyFloatRange, _1, _2, LLSD(llsd::array(0.0f, 10.0f)))));
validation.push_back(Validator(SETTING_RAYLEIGH_CONFIG, true, LLSD::TypeArray, &validateRayleighLayers));
validation.push_back(Validator(SETTING_ABSORPTION_CONFIG, true, LLSD::TypeArray, &validateAbsorptionLayers));
validation.push_back(Validator(SETTING_MIE_CONFIG, true, LLSD::TypeArray, &validateMieLayers));
validation.push_back(Validator(SETTING_LEGACY_HAZE, false, LLSD::TypeMap, &validateLegacyHaze));
}
return validation;
}
LLSD LLSettingsSky::createDensityProfileLayer(
F32 width,
F32 exponential_term,
F32 exponential_scale_factor,
F32 linear_term,
F32 constant_term,
F32 aniso_factor)
{
LLSD dflt_layer;
dflt_layer[SETTING_DENSITY_PROFILE_WIDTH] = width; // 0 -> the entire atmosphere
dflt_layer[SETTING_DENSITY_PROFILE_EXP_TERM] = exponential_term;
dflt_layer[SETTING_DENSITY_PROFILE_EXP_SCALE_FACTOR] = exponential_scale_factor;
dflt_layer[SETTING_DENSITY_PROFILE_LINEAR_TERM] = linear_term;
dflt_layer[SETTING_DENSITY_PROFILE_CONSTANT_TERM] = constant_term;
if (aniso_factor != 0.0f)
{
dflt_layer[SETTING_MIE_ANISOTROPY_FACTOR] = aniso_factor;
}
return dflt_layer;
}
LLSD LLSettingsSky::createSingleLayerDensityProfile(
F32 width,
F32 exponential_term,
F32 exponential_scale_factor,
F32 linear_term,
F32 constant_term,
F32 aniso_factor)
{
LLSD dflt;
LLSD dflt_layer = createDensityProfileLayer(width, exponential_term, exponential_scale_factor, linear_term, constant_term, aniso_factor);
dflt.append(dflt_layer);
return dflt;
}
LLSD LLSettingsSky::rayleighConfigDefault()
{
return createSingleLayerDensityProfile(0.0f, 1.0f, -1.0f / 8000.0f, 0.0f, 0.0f);
}
LLSD LLSettingsSky::absorptionConfigDefault()
{
// absorption (ozone) has two linear ramping zones
LLSD dflt_absorption_layer_a = createDensityProfileLayer(25000.0f, 0.0f, 0.0f, -1.0f / 25000.0f, -2.0f / 3.0f);
LLSD dflt_absorption_layer_b = createDensityProfileLayer(0.0f, 0.0f, 0.0f, -1.0f / 15000.0f, 8.0f / 3.0f);
LLSD dflt_absorption;
dflt_absorption.append(dflt_absorption_layer_a);
dflt_absorption.append(dflt_absorption_layer_b);
return dflt_absorption;
}
LLSD LLSettingsSky::mieConfigDefault()
{
LLSD dflt_mie = createSingleLayerDensityProfile(0.0f, 1.0f, -1.0f / 1200.0f, 0.0f, 0.0f, 0.8f);
return dflt_mie;
}
LLSD LLSettingsSky::defaults(const LLSettingsBase::TrackPosition& position)
{
static LLSD dfltsetting;
if (dfltsetting.size() == 0)
{
LLQuaternion sunquat;
LLQuaternion moonquat;
F32 azimuth = (F_PI * position) + (80.0f * DEG_TO_RAD);
F32 altitude = (F_PI * position);
// give the sun and moon slightly different tracks through the sky
// instead of positioning them at opposite poles from each other...
sunquat = convert_azimuth_and_altitude_to_quat(altitude, azimuth);
moonquat = convert_azimuth_and_altitude_to_quat(altitude + (F_PI * 0.125f), azimuth + (F_PI * 0.125f));
// Magic constants copied form dfltsetting.xml
dfltsetting[SETTING_CLOUD_COLOR] = LLColor4(0.4099, 0.4099, 0.4099, 0.0).getValue();
dfltsetting[SETTING_CLOUD_POS_DENSITY1] = LLColor4(1.0000, 0.5260, 1.0000, 0.0).getValue();
dfltsetting[SETTING_CLOUD_POS_DENSITY2] = LLColor4(1.0000, 0.5260, 1.0000, 0.0).getValue();
dfltsetting[SETTING_CLOUD_SCALE] = LLSD::Real(0.4199);
dfltsetting[SETTING_CLOUD_SCROLL_RATE] = llsd::array(0.2, 0.01);
dfltsetting[SETTING_CLOUD_SHADOW] = LLSD::Real(0.2699);
dfltsetting[SETTING_CLOUD_VARIANCE] = LLSD::Real(0.0);
dfltsetting[SETTING_DOME_OFFSET] = LLSD::Real(0.96f);
dfltsetting[SETTING_DOME_RADIUS] = LLSD::Real(15000.f);
dfltsetting[SETTING_GAMMA] = LLSD::Real(1.0);
dfltsetting[SETTING_GLOW] = LLColor4(5.000, 0.0010, -0.4799, 1.0).getValue();
dfltsetting[SETTING_MAX_Y] = LLSD::Real(1605);
dfltsetting[SETTING_MOON_ROTATION] = moonquat.getValue();
dfltsetting[SETTING_MOON_BRIGHTNESS] = LLSD::Real(0.5f);
dfltsetting[SETTING_STAR_BRIGHTNESS] = LLSD::Real(250.0000);
dfltsetting[SETTING_SUNLIGHT_COLOR] = LLColor4(0.7342, 0.7815, 0.8999, 0.0).getValue();
dfltsetting[SETTING_SUN_ROTATION] = sunquat.getValue();
dfltsetting[SETTING_BLOOM_TEXTUREID] = GetDefaultBloomTextureId();
dfltsetting[SETTING_CLOUD_TEXTUREID] = GetDefaultCloudNoiseTextureId();
dfltsetting[SETTING_MOON_TEXTUREID] = GetDefaultMoonTextureId();
dfltsetting[SETTING_SUN_TEXTUREID] = GetDefaultSunTextureId();
dfltsetting[SETTING_RAINBOW_TEXTUREID] = GetDefaultRainbowTextureId();
dfltsetting[SETTING_HALO_TEXTUREID] = GetDefaultHaloTextureId();
dfltsetting[SETTING_TYPE] = "sky";
// defaults are for earth...
dfltsetting[SETTING_PLANET_RADIUS] = 6360.0f;
dfltsetting[SETTING_SKY_BOTTOM_RADIUS] = 6360.0f;
dfltsetting[SETTING_SKY_TOP_RADIUS] = 6420.0f;
dfltsetting[SETTING_SUN_ARC_RADIANS] = 0.00045f;
dfltsetting[SETTING_SKY_MOISTURE_LEVEL] = 0.0f;
dfltsetting[SETTING_SKY_DROPLET_RADIUS] = 800.0f;
dfltsetting[SETTING_SKY_ICE_LEVEL] = 0.0f;
dfltsetting[SETTING_REFLECTION_PROBE_AMBIANCE] = 0.0f;
dfltsetting[SETTING_RAYLEIGH_CONFIG] = rayleighConfigDefault();
dfltsetting[SETTING_MIE_CONFIG] = mieConfigDefault();
dfltsetting[SETTING_ABSORPTION_CONFIG] = absorptionConfigDefault();
}
return dfltsetting;
}
LLSD LLSettingsSky::translateLegacyHazeSettings(const LLSD& legacy)
{
LLSD legacyhazesettings;
// AdvancedAtmospherics TODO
// These need to be translated into density profile info in the new settings format...
// LEGACY_ATMOSPHERICS
if (legacy.has(SETTING_AMBIENT))
{
legacyhazesettings[SETTING_AMBIENT] = LLColor3(legacy[SETTING_AMBIENT]).getValue();
}
if (legacy.has(SETTING_BLUE_DENSITY))
{
legacyhazesettings[SETTING_BLUE_DENSITY] = LLColor3(legacy[SETTING_BLUE_DENSITY]).getValue();
}
if (legacy.has(SETTING_BLUE_HORIZON))
{
legacyhazesettings[SETTING_BLUE_HORIZON] = LLColor3(legacy[SETTING_BLUE_HORIZON]).getValue();
}
if (legacy.has(SETTING_DENSITY_MULTIPLIER))
{
legacyhazesettings[SETTING_DENSITY_MULTIPLIER] = LLSD::Real(legacy[SETTING_DENSITY_MULTIPLIER][0].asReal());
}
if (legacy.has(SETTING_DISTANCE_MULTIPLIER))
{
legacyhazesettings[SETTING_DISTANCE_MULTIPLIER] = LLSD::Real(legacy[SETTING_DISTANCE_MULTIPLIER][0].asReal());
}
if (legacy.has(SETTING_HAZE_DENSITY))
{
legacyhazesettings[SETTING_HAZE_DENSITY] = LLSD::Real(legacy[SETTING_HAZE_DENSITY][0].asReal());
}
if (legacy.has(SETTING_HAZE_HORIZON))
{
legacyhazesettings[SETTING_HAZE_HORIZON] = LLSD::Real(legacy[SETTING_HAZE_HORIZON][0].asReal());
}
return legacyhazesettings;
}
LLSD LLSettingsSky::translateLegacySettings(const LLSD& legacy)
{
bool converted_something(false);
LLSD newsettings(defaults());
// Move legacy haze parameters to an inner map
// allowing backward compat and simple conversion to legacy format
LLSD legacyhazesettings;
legacyhazesettings = translateLegacyHazeSettings(legacy);
if (legacyhazesettings.size() > 0)
{
newsettings[SETTING_LEGACY_HAZE] = legacyhazesettings;
converted_something |= true;
}
if (legacy.has(SETTING_CLOUD_COLOR))
{
newsettings[SETTING_CLOUD_COLOR] = LLColor3(legacy[SETTING_CLOUD_COLOR]).getValue();
converted_something |= true;
}
if (legacy.has(SETTING_CLOUD_POS_DENSITY1))
{
newsettings[SETTING_CLOUD_POS_DENSITY1] = LLColor3(legacy[SETTING_CLOUD_POS_DENSITY1]).getValue();
converted_something |= true;
}
if (legacy.has(SETTING_CLOUD_POS_DENSITY2))
{
newsettings[SETTING_CLOUD_POS_DENSITY2] = LLColor3(legacy[SETTING_CLOUD_POS_DENSITY2]).getValue();
converted_something |= true;
}
if (legacy.has(SETTING_CLOUD_SCALE))
{
newsettings[SETTING_CLOUD_SCALE] = LLSD::Real(legacy[SETTING_CLOUD_SCALE][0].asReal());
converted_something |= true;
}
if (legacy.has(SETTING_CLOUD_SCROLL_RATE))
{
LLVector2 cloud_scroll(legacy[SETTING_CLOUD_SCROLL_RATE]);
cloud_scroll -= LLVector2(10, 10);
if (legacy.has(SETTING_LEGACY_ENABLE_CLOUD_SCROLL))
{
LLSD enabled = legacy[SETTING_LEGACY_ENABLE_CLOUD_SCROLL];
if (!enabled[0].asBoolean())
cloud_scroll.mV[0] = 0.0f;
if (!enabled[1].asBoolean())
cloud_scroll.mV[1] = 0.0f;
}
newsettings[SETTING_CLOUD_SCROLL_RATE] = cloud_scroll.getValue();
converted_something |= true;
}
if (legacy.has(SETTING_CLOUD_SHADOW))
{
newsettings[SETTING_CLOUD_SHADOW] = LLSD::Real(legacy[SETTING_CLOUD_SHADOW][0].asReal());
converted_something |= true;
}
if (legacy.has(SETTING_GAMMA))
{
newsettings[SETTING_GAMMA] = legacy[SETTING_GAMMA][0].asReal();
converted_something |= true;
}
if (legacy.has(SETTING_GLOW))
{
newsettings[SETTING_GLOW] = LLColor3(legacy[SETTING_GLOW]).getValue();
converted_something |= true;
}
if (legacy.has(SETTING_MAX_Y))
{
newsettings[SETTING_MAX_Y] = LLSD::Real(legacy[SETTING_MAX_Y][0].asReal());
converted_something |= true;
}
if (legacy.has(SETTING_STAR_BRIGHTNESS))
{
newsettings[SETTING_STAR_BRIGHTNESS] = LLSD::Real(legacy[SETTING_STAR_BRIGHTNESS].asReal() * 250.0f);
converted_something |= true;
}
if (legacy.has(SETTING_SUNLIGHT_COLOR))
{
newsettings[SETTING_SUNLIGHT_COLOR] = LLColor4(legacy[SETTING_SUNLIGHT_COLOR]).getValue();
converted_something |= true;
}
if (legacy.has(SETTING_PLANET_RADIUS))
{
newsettings[SETTING_PLANET_RADIUS] = LLSD::Real(legacy[SETTING_PLANET_RADIUS].asReal());
converted_something |= true;
}
if (legacy.has(SETTING_SKY_BOTTOM_RADIUS))
{
newsettings[SETTING_SKY_BOTTOM_RADIUS] = LLSD::Real(legacy[SETTING_SKY_BOTTOM_RADIUS].asReal());
converted_something |= true;
}
if (legacy.has(SETTING_SKY_TOP_RADIUS))
{
newsettings[SETTING_SKY_TOP_RADIUS] = LLSD::Real(legacy[SETTING_SKY_TOP_RADIUS].asReal());
converted_something |= true;
}
if (legacy.has(SETTING_SUN_ARC_RADIANS))
{
newsettings[SETTING_SUN_ARC_RADIANS] = LLSD::Real(legacy[SETTING_SUN_ARC_RADIANS].asReal());
converted_something |= true;
}
if (legacy.has(SETTING_LEGACY_EAST_ANGLE) && legacy.has(SETTING_LEGACY_SUN_ANGLE))
{
// get counter-clockwise radian angle from clockwise legacy WL east angle...
F32 azimuth = -legacy[SETTING_LEGACY_EAST_ANGLE].asReal();
F32 altitude = legacy[SETTING_LEGACY_SUN_ANGLE].asReal();
LLQuaternion sunquat = convert_azimuth_and_altitude_to_quat(azimuth, altitude);
// original WL moon dir was diametrically opposed to the sun dir
LLQuaternion moonquat = convert_azimuth_and_altitude_to_quat(azimuth + F_PI, -altitude);
newsettings[SETTING_SUN_ROTATION] = sunquat.getValue();
newsettings[SETTING_MOON_ROTATION] = moonquat.getValue();
converted_something |= true;
}
if (!converted_something)
return LLSD();
return newsettings;
}
void LLSettingsSky::updateSettings()
{
LL_PROFILE_ZONE_SCOPED_CATEGORY_ENVIRONMENT;
// base class clears dirty flag so as to not trigger recursive update
LLSettingsBase::updateSettings();
// NOTE: these functions are designed to do nothing unless a dirty bit has been set
// so if you add new settings that are referenced by these update functions,
// you'll need to insure that your setter updates the dirty bits as well
calculateHeavenlyBodyPositions();
calculateLightSettings();
}
F32 LLSettingsSky::getSunMoonGlowFactor() const
{
return getIsSunUp() ? 1.0f :
getIsMoonUp() ? getMoonBrightness() * 0.25 : 0.0f;
}
bool LLSettingsSky::getIsSunUp() const
{
LLVector3 sunDir = getSunDirection();
return sunDir.mV[2] >= 0.0f;
}
bool LLSettingsSky::getIsMoonUp() const
{
LLVector3 moonDir = getMoonDirection();
return moonDir.mV[2] >= 0.0f;
}
void LLSettingsSky::calculateHeavenlyBodyPositions() const
{
LLQuaternion sunq = getSunRotation();
LLQuaternion moonq = getMoonRotation();
mSunDirection = LLVector3::x_axis * sunq;
mMoonDirection = LLVector3::x_axis * moonq;
mSunDirection.normalize();
mMoonDirection.normalize();
if (mSunDirection.lengthSquared() < 0.01f)
LL_WARNS("SETTINGS") << "Zero length sun direction. Wailing and gnashing of teeth may follow... or not." << LL_ENDL;
if (mMoonDirection.lengthSquared() < 0.01f)
LL_WARNS("SETTINGS") << "Zero length moon direction. Wailing and gnashing of teeth may follow... or not." << LL_ENDL;
}
LLVector3 LLSettingsSky::getLightDirection() const
{
update();