/* -------------------------------------------------------------------------------- This source file is part of SkyX. Visit http://www.paradise-studios.net/products/skyx/ Copyright (C) 2009-2011 Xavier Verguín González This program 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; either version 2 of the License, or (at your option) any later version. This program 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 program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA, or go to http://www.gnu.org/copyleft/lesser.txt. -------------------------------------------------------------------------------- */ #include "CloudsManager.h" #include "SkyX.h" namespace SkyX { /// -------------- CloudLayer ----------------- CloudLayer::CloudLayer(SkyX *s) : mSkyX(s) , mOptions(Options()) , mCloudLayerPass(0) { mAmbientGradient = ColorGradient(); mAmbientGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(1,1,1)*0.95f, 1.0f)); mAmbientGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.7,0.7,0.65), 0.625f)); mAmbientGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.6,0.55,0.4), 0.5625f)); mAmbientGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.6,0.45,0.3)*0.4, 0.5f)); mAmbientGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.5,0.25,0.25)*0.1, 0.45f)); mAmbientGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.2,0.2,0.3)*0.1, 0.35f)); mAmbientGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.2,0.2,0.5)*0.15, 0)); mSunGradient = ColorGradient(); mSunGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(1,1,1)*0.95f, 1.0f)); mSunGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(1,1,1)*0.8, 0.75f)); mSunGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.8,0.75,0.55)*1.3, 0.5625f)); mSunGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.6,0.5,0.2)*0.75, 0.5f)); mSunGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.6,0.5,0.2)*0.35, 0.4725f)); mSunGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.5,0.5,0.5)*0.15, 0.45f)); mSunGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.2,0.2,0.25)*0.5, 0.3f)); mSunGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.5,0.5,0.5)*0.35, 0.0f)); } CloudLayer::CloudLayer(SkyX *s, const Options& o) : mSkyX(s) , mOptions(o) , mCloudLayerPass(0) { mAmbientGradient = ColorGradient(); mAmbientGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(1,1,1)*0.95f, 1.0f)); mAmbientGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.7,0.7,0.65), 0.625f)); mAmbientGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.6,0.55,0.4), 0.5625f)); mAmbientGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.6,0.45,0.3)*0.4, 0.5f)); mAmbientGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.5,0.25,0.25)*0.1, 0.45f)); mAmbientGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.2,0.2,0.3)*0.1, 0.35f)); mAmbientGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.2,0.2,0.5)*0.15, 0)); mSunGradient = ColorGradient(); mSunGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(1,1,1)*0.95f, 1.0f)); mSunGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(1,1,1)*0.8, 0.75f)); mSunGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.8,0.75,0.55)*1.3, 0.5625f)); mSunGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.6,0.5,0.2)*0.75, 0.5f)); mSunGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.6,0.5,0.2)*0.35, 0.4725f)); mSunGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.5,0.5,0.5)*0.15, 0.45f)); mSunGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.2,0.2,0.25)*0.5, 0.3f)); mSunGradient.addCFrame(ColorGradient::ColorFrame(Ogre::Vector3(0.5,0.5,0.5)*0.35, 0.0f)); } CloudLayer::~CloudLayer() { _unregister(); } void CloudLayer::_registerCloudLayer(Ogre::Pass* CloudLayerPass) { _unregister(); CloudLayerPass->setSceneBlending(Ogre::SBT_TRANSPARENT_ALPHA); CloudLayerPass->setCullingMode(Ogre::CULL_NONE); CloudLayerPass->setLightingEnabled(false); CloudLayerPass->setDepthWriteEnabled(false); CloudLayerPass->setVertexProgram("SkyX_Clouds_VP"); if (mSkyX->getLightingMode() == SkyX::LM_LDR) { CloudLayerPass->setFragmentProgram("SkyX_Clouds_LDR_FP"); } else { CloudLayerPass->setFragmentProgram("SkyX_Clouds_HDR_FP"); } // TODO CloudLayerPass->createTextureUnitState("Clouds.png")->setTextureAddressingMode(Ogre::TextureUnitState::TAM_WRAP); CloudLayerPass->createTextureUnitState("CloudsNormal.png")->setTextureAddressingMode(Ogre::TextureUnitState::TAM_WRAP); CloudLayerPass->createTextureUnitState("CloudsTile.png")->setTextureAddressingMode(Ogre::TextureUnitState::TAM_WRAP); mCloudLayerPass = CloudLayerPass; _updatePassParameters(); _updateInternalPassParameters(); } void CloudLayer::_unregister() { if (mCloudLayerPass) { mCloudLayerPass->getParent()->removePass(mCloudLayerPass->getIndex()); mCloudLayerPass = static_cast(NULL); } } void CloudLayer::_updatePassParameters() { if (!mCloudLayerPass) { return; } mCloudLayerPass->getFragmentProgramParameters() ->setNamedConstant("uScale", mOptions.Scale); mCloudLayerPass->getFragmentProgramParameters() ->setNamedConstant("uHeight", mOptions.Height); float WindDirection_[2] = {mOptions.WindDirection.x, mOptions.WindDirection.y}; mCloudLayerPass->getFragmentProgramParameters() ->setNamedConstant("uWindDirection", WindDirection_, 1, 2); mCloudLayerPass->getFragmentProgramParameters() ->setNamedConstant("uCloudLayerHeightVolume", mOptions.HeightVolume); mCloudLayerPass->getFragmentProgramParameters() ->setNamedConstant("uCloudLayerVolumetricDisplacement", mOptions.VolumetricDisplacement); mCloudLayerPass->getFragmentProgramParameters() ->setNamedConstant("uDetailAttenuation", mOptions.DetailAttenuation); mCloudLayerPass->getFragmentProgramParameters() ->setNamedConstant("uDistanceAttenuation", mOptions.DistanceAttenuation); } void CloudLayer::_updateInternalPassParameters() { if (!mCloudLayerPass) { return; } if (mSkyX->getLightingMode() == SkyX::LM_LDR) { mCloudLayerPass->getFragmentProgramParameters() ->setNamedConstant("uExposure", mSkyX->getAtmosphereManager()->getOptions().Exposure); } mCloudLayerPass->getFragmentProgramParameters() ->setNamedConstant("uTime", mSkyX->_getTimeOffset()*mOptions.TimeMultiplier); /* mCloudLayerPass->getFragmentProgramParameters() ->setNamedConstant("uSunPosition", -mSkyX->getAtmosphereManager()->getSunDirection()*mSkyX->getMeshManager()->getSkydomeRadius()); Ogre::Vector3 AmbientColor = Ogre::Vector3::ZERO; Ogre::Vector3 SunDir = -mSkyX->getAtmosphereManager()->getSunDirection(); Ogre::Real Ang = 0; for (int k = 0; k < 3; k++) { Ogre::Vector2 Coords = Ogre::Vector2(Ogre::Math::Cos(Ang), Ogre::Math::Sin(Ang)); Ang += 2*Ogre::Math::PI/3; AmbientColor += mSkyX->getAtmosphereManager()->getColorAt(Ogre::Vector3(Coords.x, mOptions.Height/mSkyX->getMeshManager()->getSkydomeRadius(), Coords.y).normalisedCopy()); } AmbientColor /= 3; mCloudLayerPass->getFragmentProgramParameters() ->setNamedConstant("uAmbientLuminosity", AmbientColor*0.75f); float Mult = 1.5f; mCloudLayerPass->getFragmentProgramParameters() ->setNamedConstant("uSunColor", Ogre::Vector3( Ogre::Math::Clamp(AmbientColor.x*Mult, 0, 1), Ogre::Math::Clamp(AmbientColor.y*Mult, 0, 1), Ogre::Math::Clamp(AmbientColor.z*Mult, 0, 1))); */ //Ogre::Vector3 SunDir = mSkyX->getAtmosphereManager()->getSunDirection(); //if (SunDir.y > 0.15f) //{ // SunDir = -SunDir; //} // mCloudLayerPass->getFragmentProgramParameters() // ->setNamedConstant("uSunPosition", -SunDir*mSkyX->getMeshManager()->getSkydomeRadius()); float point = (mSkyX->getController()->getSunDirection().y + 1.0f) / 2.0f; mCloudLayerPass->getFragmentProgramParameters() ->setNamedConstant("uSunColor", mSunGradient.getColor(point)); mCloudLayerPass->getFragmentProgramParameters() ->setNamedConstant("uAmbientLuminosity", mAmbientGradient.getColor(point)); } /// ------------- CloudsManager --------------- CloudsManager::CloudsManager(SkyX *s) : mSkyX(s) { } CloudsManager::~CloudsManager() { removeAll(); } CloudLayer* CloudsManager::add(const CloudLayer::Options& o) { CloudLayer *NewCloudLayer = new CloudLayer(mSkyX, o); // TODO NewCloudLayer->_registerCloudLayer(static_cast( Ogre::MaterialManager::getSingleton().getByName(mSkyX->getGPUManager()->getSkydomeMaterialName())) ->getTechnique(0)->createPass()); mCloudLayers.push_back(NewCloudLayer); bool changeOrder = false; // Short layers by height for (unsigned int k = 0; k < mCloudLayers.size(); k++) { if (k+1 < mCloudLayers.size()) { if (mCloudLayers.at(k)->getOptions().Height < mCloudLayers.at(k+1)->getOptions().Height) { // Swap CloudLayer* cl = mCloudLayers.at(k); mCloudLayers.at(k) = mCloudLayers.at(k+1); mCloudLayers.at(k+1) = cl; changeOrder = true; k = 0; } } } if (changeOrder) { unregisterAll(); registerAll(); } return NewCloudLayer; } void CloudsManager::remove(CloudLayer* cl) { unsigned int currentIndex = 0; unsigned int indexToErase = 0; for(CloudLayersIt = mCloudLayers.begin(); CloudLayersIt != mCloudLayers.end(); CloudLayersIt++) { currentIndex++; if((*CloudLayersIt) == cl) { indexToErase = currentIndex; delete (*CloudLayersIt); } } if(indexToErase > 0) mCloudLayers.erase(mCloudLayers.begin() + (indexToErase - 1)); } void CloudsManager::removeAll() { for(CloudLayersIt = mCloudLayers.begin(); CloudLayersIt != mCloudLayers.end(); CloudLayersIt++) { delete (*CloudLayersIt); } mCloudLayers.clear(); } void CloudsManager::registerAll() { for(unsigned int k = 0; k < mCloudLayers.size(); k++) { mCloudLayers.at(k)->_registerCloudLayer(static_cast( Ogre::MaterialManager::getSingleton().getByName(mSkyX->getGPUManager()->getSkydomeMaterialName())) ->getTechnique(0)->createPass()); } } void CloudsManager::unregister(CloudLayer* cl) { for(CloudLayersIt = mCloudLayers.begin(); CloudLayersIt != mCloudLayers.end(); CloudLayersIt++) { if((*CloudLayersIt) == cl) { (*CloudLayersIt)->_unregister(); } } } void CloudsManager::unregisterAll() { for(CloudLayersIt = mCloudLayers.begin(); CloudLayersIt != mCloudLayers.end(); CloudLayersIt++) { (*CloudLayersIt)->_unregister(); } } void CloudsManager::update() { for(CloudLayersIt = mCloudLayers.begin(); CloudLayersIt != mCloudLayers.end(); CloudLayersIt++) { (*CloudLayersIt)->_updateInternalPassParameters(); } } }