bool ParticleEmitterPressure::stepEmissionSite( SiteData& siteData, ParticleData& spawnData, PxU32& spawnNum, const PxU32 spawnMax, const PxVec3 &sitePos, const PxVec3 &siteVel, const PxReal dt) { PxReal maxDistanceMoved = 5.0f * mSpacingZ; // don't generate long particle beams /** * Find displacement vector of the particle's motion this frame * this is not necessarily v*stepSize because a collision might have occured */ PxVec3 displacement = siteData.position - sitePos; PxVec3 normal = displacement; PxReal distanceMoved = normal.normalize(); if (distanceMoved > maxDistanceMoved) distanceMoved = maxDistanceMoved; /** * Place particles along line between emission point and new position * starting backwards from the new position * spacing between the particles is the rest spacing of the fluid */ PxReal lastPlaced = 0.0f; while((lastPlaced + mSpacingZ) <= distanceMoved) { PxVec3 pos = sitePos + normal * (distanceMoved - (lastPlaced + mSpacingZ)); PxVec3 posNoise; posNoise.x = randInRange(-mRandomPos.x, mRandomPos.x); posNoise.y = randInRange(-mRandomPos.y, mRandomPos.y); pos += mAxisX*posNoise.x + mAxisY*posNoise.y; bool isSpawned = spawnParticle(spawnData, spawnNum, spawnMax, pos, siteVel); if(isSpawned) { updatePredecessor(siteData, pos, siteVel); lastPlaced += mSpacingZ; } else { return false; } } return true; }
LaneSettings::LaneSettings(ProjectSettings *projectSettings, SettingsElement *parentSettingsElement, Lane *lane) : SettingsElement(projectSettings, parentSettingsElement, lane) , ui(new Ui::LaneSettings) , lane_(lane) , init_(false) , roadSystemItemPolyGraph_(NULL) , insertWidthSectionHandle_(NULL) , lswItem_(NULL) { ui->setupUi(this); activateWidthGroupBox(false); activateInsertGroupBox(false); connect(ui->insertPushButton, SIGNAL(clicked(bool)), this, SLOT(activateInsertGroupBox(bool))); connect(ui->editPushButton, SIGNAL(clicked(bool)), this, SLOT(activateWidthGroupBox(bool))); // List // // QStringList typeNames; typeNames << Lane::parseLaneTypeBack(Lane::LT_NONE) << Lane::parseLaneTypeBack(Lane::LT_DRIVING) << Lane::parseLaneTypeBack(Lane::LT_STOP) << Lane::parseLaneTypeBack(Lane::LT_SHOULDER) << Lane::parseLaneTypeBack(Lane::LT_BIKING) << Lane::parseLaneTypeBack(Lane::LT_SIDEWALK) << Lane::parseLaneTypeBack(Lane::LT_BORDER) << Lane::parseLaneTypeBack(Lane::LT_RESTRICTED) << Lane::parseLaneTypeBack(Lane::LT_PARKING) << Lane::parseLaneTypeBack(Lane::LT_MWYENTRY) << Lane::parseLaneTypeBack(Lane::LT_MWYEXIT) << Lane::parseLaneTypeBack(Lane::LT_SPECIAL1) << Lane::parseLaneTypeBack(Lane::LT_SPECIAL2) << Lane::parseLaneTypeBack(Lane::LT_SPECIAL3); ui->typeBox->addItems(typeNames); /*heightGraph_ = new ProfileGraph(projectSettings->getProjectWidget(), projectSettings->getProjectData()); heightGraph_->setParent(ui->widthGroup); ui->horizontalLayout_3->insertWidget(0,heightGraph_); //heightGraph_->getView()->setDragMode(QGraphicsView::ScrollHandDrag); //QGraphicsScene* pScene = new NoDeselectScene(this); //heightGraph_->getView()->setScene(pScene); heightGraph_->getScene()->doDeselect(false);// we don't want to deselect ourselves if we click on the background, otherwise we delete ourselves--> chrash and it would not be practical anyway */ heightGraph_ = projectSettings->getProjectWidget()->getHeightGraph(); laneEditor_ = dynamic_cast<LaneEditor *>(projectSettings->getProjectWidget()->getProjectEditor()); if (!laneEditor_) { return; // another editor is active } roadSystemItemPolyGraph_ = new LaneWidthRoadSystemItem(heightGraph_, projectSettings->getProjectData()->getRoadSystem()); heightGraph_->getScene()->addItem(roadSystemItemPolyGraph_); // Section Handle // // //insertWidthSectionHandle_ = new SectionHandle(roadSystemItemPolyGraph_); //insertWidthSectionHandle_->hide(); roadSystemItemPolyGraph_->setSettings(this); roadSystemItemPolyGraph_->setAcceptHoverEvents(true); // Activate Road in ProfileGraph // // lswItem_ = new LaneSectionWidthItem(roadSystemItemPolyGraph_, lane_); //selectedElevationRoadItems_.insert(road, roadItem); // Fit View // // QRectF boundingBox = lswItem_->boundingRect(); if (boundingBox.width() < 15.0) { boundingBox.setWidth(15.0); } if (boundingBox.height() < 10.0) { boundingBox.setHeight(10.0); } heightGraph_->getView()->fitInView(boundingBox); heightGraph_->getView()->zoomOut(Qt::Horizontal | Qt::Vertical); //ui->horizontalLayout_3->insertWidget(0,heightGraph_); //heightGraph_->show(); // Initial Values // // updateId(); updateType(); updateLevel(); updatePredecessor(); updateSuccessor(); updateWidth(); // Done // // init_ = true; }
void ParticleEmitterPressure::stepInternal(ParticleData& particles, PxReal dt, const PxVec3& externalAcceleration, PxReal maxParticleVelocity) { PX_ASSERT(mNumX > 0 && mNumY > 0); mSimulationAcceleration = externalAcceleration; mSimulationMaxVelocity = maxParticleVelocity; PxU32 numEmittedParticles = 0; PxU32 maxParticlesPerStep = (PxU32)physx::shdfnd::floor(mMaxRate*dt); PxU32 maxParticles = PxMin(particles.maxParticles - particles.numParticles, maxParticlesPerStep); PxU32 siteNr = 0; for(PxU32 y = 0; y != mNumY; y++) { PxReal offset = 0.0f; if (y%2) offset = mSpacingX * 0.5f; for(PxU32 x = 0; x != mNumX; x++) { if (isOutsideShape(x,y,offset)) continue; SiteData& siteData = mSites[siteNr]; //position noise PxVec3 posNoise; posNoise.x = randInRange(-mRandomPos.x, mRandomPos.x); posNoise.y = randInRange(-mRandomPos.y, mRandomPos.y); //special code for Z noise if (!siteData.predecessor) siteData.noiseZ = randInRange(-mRandomPos.z, mRandomPos.z); else { PxReal noiseZOffset = PxMin(mMaxZNoiseOffset, mRandomPos.z); siteData.noiseZ += randInRange(-noiseZOffset, noiseZOffset); siteData.noiseZ = PxClamp(siteData.noiseZ, mRandomPos.z, -mRandomPos.z); } posNoise.z = siteData.noiseZ; //set position PxVec3 sitePos = mBasePos + mAxisX*(offset+mSpacingX*x) + mAxisY*(mSpacingY*y) + mAxisZ*siteData.noiseZ; PxVec3 particlePos = sitePos + mAxisX*posNoise.x + mAxisY*posNoise.y; PxVec3 siteVel; computeSiteVelocity(siteVel, particlePos); if (siteData.predecessor) { predictPredecessorPos(siteData, dt); } else { bool isSpawned = spawnParticle(particles, numEmittedParticles, maxParticles, particlePos, siteVel); if(isSpawned) { updatePredecessor(siteData, particlePos, siteVel); } else { siteData.predecessor = false; return; } } bool allSpawned = stepEmissionSite(siteData, particles, numEmittedParticles, maxParticles, sitePos, siteVel, dt); if(!allSpawned) return; siteNr++; } } }