diff --git a/examples/particles.js b/examples/particles.js index deb6228fff..fc1a936a72 100644 --- a/examples/particles.js +++ b/examples/particles.js @@ -39,10 +39,11 @@ this.entity = Entities.addEntity({ type: "ParticleEffect", animationSettings: animationSettings, position: spawnPoint, - textures: "http://www.hyperlogic.org/images/particle.png", - emitRate: emitRate, - emitStrength: emitStrength, - emitDirection: emitDirection, + dimensions: {x: 2, y: 2, z: 2}, + emitVelocity: {x: 0, y: 5, z: 0}, + velocitySpread: {x: 2, y: 0, z: 2}, + emitAcceleration: {x: 0, y: -9.8, z: 0}, + textures: "https://raw.githubusercontent.com/ericrius1/SantasLair/santa/assets/smokeparticle.png", color: color, lifespan: 1.0, visible: true, diff --git a/libraries/entities-renderer/src/RenderableParticleEffectEntityItem.cpp b/libraries/entities-renderer/src/RenderableParticleEffectEntityItem.cpp index d9d4ec4a5b..f683083ed1 100644 --- a/libraries/entities-renderer/src/RenderableParticleEffectEntityItem.cpp +++ b/libraries/entities-renderer/src/RenderableParticleEffectEntityItem.cpp @@ -247,7 +247,6 @@ void RenderableParticleEffectEntityItem::updateRenderItem() { glm::vec3 pos = _transform.getTranslation(); Transform t; t.setRotation(rot); - t.setTranslation(pos); payload.setModelTransform(t); // transform _particleMinBound and _particleMaxBound corners into world coords @@ -285,7 +284,7 @@ void RenderableParticleEffectEntityItem::updateRenderItem() { payload.setPipeline(_untexturedPipeline); } }); - + _scene->enqueuePendingChanges(pendingChanges); } @@ -295,7 +294,7 @@ void RenderableParticleEffectEntityItem::createPipelines() { state->setCullMode(gpu::State::CULL_BACK); state->setDepthTest(true, true, gpu::LESS_EQUAL); state->setBlendFunction(true, gpu::State::SRC_ALPHA, gpu::State::BLEND_OP_ADD, - gpu::State::INV_SRC_ALPHA, gpu::State::FACTOR_ALPHA, + gpu::State::ONE, gpu::State::FACTOR_ALPHA, gpu::State::BLEND_OP_ADD, gpu::State::ONE); auto vertShader = gpu::ShaderPointer(gpu::Shader::createVertex(std::string(untextured_particle_vert))); auto fragShader = gpu::ShaderPointer(gpu::Shader::createPixel(std::string(untextured_particle_frag))); diff --git a/libraries/entities/src/EntityItem.cpp b/libraries/entities/src/EntityItem.cpp index 0ffcc00ead..9fa6ccac65 100644 --- a/libraries/entities/src/EntityItem.cpp +++ b/libraries/entities/src/EntityItem.cpp @@ -610,6 +610,7 @@ int EntityItem::readEntityDataFromBuffer(const unsigned char* data, int bytesLef auto nodeList = DependencyManager::get(); const QUuid& myNodeID = nodeList->getSessionUUID(); bool weOwnSimulation = _simulationOwner.matchesValidID(myNodeID); + if (args.bitstreamVersion >= VERSION_ENTITIES_HAVE_SIMULATION_OWNER_AND_ACTIONS_OVER_WIRE) { // pack SimulationOwner and terse update properties near each other diff --git a/libraries/entities/src/EntityItemProperties.cpp b/libraries/entities/src/EntityItemProperties.cpp index d8b555cb59..c6c02f248c 100644 --- a/libraries/entities/src/EntityItemProperties.cpp +++ b/libraries/entities/src/EntityItemProperties.cpp @@ -84,9 +84,10 @@ CONSTRUCT_PROPERTY(shapeType, SHAPE_TYPE_NONE), CONSTRUCT_PROPERTY(maxParticles, ParticleEffectEntityItem::DEFAULT_MAX_PARTICLES), CONSTRUCT_PROPERTY(lifespan, ParticleEffectEntityItem::DEFAULT_LIFESPAN), CONSTRUCT_PROPERTY(emitRate, ParticleEffectEntityItem::DEFAULT_EMIT_RATE), -CONSTRUCT_PROPERTY(emitDirection, ParticleEffectEntityItem::DEFAULT_EMIT_DIRECTION), -CONSTRUCT_PROPERTY(emitStrength, ParticleEffectEntityItem::DEFAULT_EMIT_STRENGTH), -CONSTRUCT_PROPERTY(localGravity, ParticleEffectEntityItem::DEFAULT_LOCAL_GRAVITY), +CONSTRUCT_PROPERTY(emitVelocity, ParticleEffectEntityItem::DEFAULT_EMIT_VELOCITY), +CONSTRUCT_PROPERTY(velocitySpread, ParticleEffectEntityItem::DEFAULT_VELOCITY_SPREAD), +CONSTRUCT_PROPERTY(emitAcceleration, ParticleEffectEntityItem::DEFAULT_EMIT_ACCELERATION), +CONSTRUCT_PROPERTY(accelerationSpread, ParticleEffectEntityItem::DEFAULT_ACCELERATION_SPREAD), CONSTRUCT_PROPERTY(particleRadius, ParticleEffectEntityItem::DEFAULT_PARTICLE_RADIUS), CONSTRUCT_PROPERTY(marketplaceID, ENTITY_ITEM_DEFAULT_MARKETPLACE_ID), CONSTRUCT_PROPERTY(keyLightColor, ZoneEntityItem::DEFAULT_KEYLIGHT_COLOR), @@ -349,9 +350,10 @@ EntityPropertyFlags EntityItemProperties::getChangedProperties() const { CHECK_PROPERTY_CHANGE(PROP_MAX_PARTICLES, maxParticles); CHECK_PROPERTY_CHANGE(PROP_LIFESPAN, lifespan); CHECK_PROPERTY_CHANGE(PROP_EMIT_RATE, emitRate); - CHECK_PROPERTY_CHANGE(PROP_EMIT_DIRECTION, emitDirection); - CHECK_PROPERTY_CHANGE(PROP_EMIT_STRENGTH, emitStrength); - CHECK_PROPERTY_CHANGE(PROP_LOCAL_GRAVITY, localGravity); + CHECK_PROPERTY_CHANGE(PROP_EMIT_VELOCITY, emitVelocity); + CHECK_PROPERTY_CHANGE(PROP_VELOCITY_SPREAD, velocitySpread); + CHECK_PROPERTY_CHANGE(PROP_EMIT_ACCELERATION, emitAcceleration); + CHECK_PROPERTY_CHANGE(PROP_ACCELERATION_SPREAD, accelerationSpread); CHECK_PROPERTY_CHANGE(PROP_PARTICLE_RADIUS, particleRadius); CHECK_PROPERTY_CHANGE(PROP_MARKETPLACE_ID, marketplaceID); CHECK_PROPERTY_CHANGE(PROP_NAME, name); @@ -451,9 +453,10 @@ QScriptValue EntityItemProperties::copyToScriptValue(QScriptEngine* engine, bool COPY_PROPERTY_TO_QSCRIPTVALUE(maxParticles); COPY_PROPERTY_TO_QSCRIPTVALUE(lifespan); COPY_PROPERTY_TO_QSCRIPTVALUE(emitRate); - COPY_PROPERTY_TO_QSCRIPTVALUE(emitDirection); - COPY_PROPERTY_TO_QSCRIPTVALUE(emitStrength); - COPY_PROPERTY_TO_QSCRIPTVALUE(localGravity); + COPY_PROPERTY_TO_QSCRIPTVALUE(emitVelocity); + COPY_PROPERTY_TO_QSCRIPTVALUE(velocitySpread); + COPY_PROPERTY_TO_QSCRIPTVALUE(emitAcceleration); + COPY_PROPERTY_TO_QSCRIPTVALUE(accelerationSpread); COPY_PROPERTY_TO_QSCRIPTVALUE(particleRadius); COPY_PROPERTY_TO_QSCRIPTVALUE(marketplaceID); COPY_PROPERTY_TO_QSCRIPTVALUE(name); @@ -571,9 +574,10 @@ void EntityItemProperties::copyFromScriptValue(const QScriptValue& object, bool COPY_PROPERTY_FROM_QSCRIPTVALUE(maxParticles, float, setMaxParticles); COPY_PROPERTY_FROM_QSCRIPTVALUE(lifespan, float, setLifespan); COPY_PROPERTY_FROM_QSCRIPTVALUE(emitRate, float, setEmitRate); - COPY_PROPERTY_FROM_QSCRIPTVALUE(emitDirection, glmVec3, setEmitDirection); - COPY_PROPERTY_FROM_QSCRIPTVALUE(emitStrength, float, setEmitStrength); - COPY_PROPERTY_FROM_QSCRIPTVALUE(localGravity, float, setLocalGravity); + COPY_PROPERTY_FROM_QSCRIPTVALUE(emitVelocity, glmVec3, setEmitVelocity); + COPY_PROPERTY_FROM_QSCRIPTVALUE(velocitySpread, glmVec3, setVelocitySpread); + COPY_PROPERTY_FROM_QSCRIPTVALUE(emitAcceleration, glmVec3, setEmitAcceleration); + COPY_PROPERTY_FROM_QSCRIPTVALUE(accelerationSpread, glmVec3, setAccelerationSpread); COPY_PROPERTY_FROM_QSCRIPTVALUE(particleRadius, float, setParticleRadius); COPY_PROPERTY_FROM_QSCRIPTVALUE(marketplaceID, QString, setMarketplaceID); COPY_PROPERTY_FROM_QSCRIPTVALUE(name, QString, setName); @@ -812,10 +816,12 @@ bool EntityItemProperties::encodeEntityEditPacket(PacketType::Value command, Ent APPEND_ENTITY_PROPERTY(PROP_MAX_PARTICLES, properties.getMaxParticles()); APPEND_ENTITY_PROPERTY(PROP_LIFESPAN, properties.getLifespan()); APPEND_ENTITY_PROPERTY(PROP_EMIT_RATE, properties.getEmitRate()); - APPEND_ENTITY_PROPERTY(PROP_EMIT_DIRECTION, properties.getEmitDirection()); - APPEND_ENTITY_PROPERTY(PROP_EMIT_STRENGTH, properties.getEmitStrength()); - APPEND_ENTITY_PROPERTY(PROP_LOCAL_GRAVITY, properties.getLocalGravity()); + APPEND_ENTITY_PROPERTY(PROP_EMIT_VELOCITY, properties.getEmitVelocity()); + APPEND_ENTITY_PROPERTY(PROP_VELOCITY_SPREAD, properties.getVelocitySpread()); + APPEND_ENTITY_PROPERTY(PROP_EMIT_ACCELERATION, properties.getEmitAcceleration()); + APPEND_ENTITY_PROPERTY(PROP_ACCELERATION_SPREAD, properties.getAccelerationSpread()); APPEND_ENTITY_PROPERTY(PROP_PARTICLE_RADIUS, properties.getParticleRadius()); + } if (properties.getType() == EntityTypes::Zone) { @@ -1080,9 +1086,10 @@ bool EntityItemProperties::decodeEntityEditPacket(const unsigned char* data, int READ_ENTITY_PROPERTY_TO_PROPERTIES(PROP_MAX_PARTICLES, float, setMaxParticles); READ_ENTITY_PROPERTY_TO_PROPERTIES(PROP_LIFESPAN, float, setLifespan); READ_ENTITY_PROPERTY_TO_PROPERTIES(PROP_EMIT_RATE, float, setEmitRate); - READ_ENTITY_PROPERTY_TO_PROPERTIES(PROP_EMIT_DIRECTION, glm::vec3, setEmitDirection); - READ_ENTITY_PROPERTY_TO_PROPERTIES(PROP_EMIT_STRENGTH, float, setEmitStrength); - READ_ENTITY_PROPERTY_TO_PROPERTIES(PROP_LOCAL_GRAVITY, float, setLocalGravity); + READ_ENTITY_PROPERTY_TO_PROPERTIES(PROP_EMIT_VELOCITY, glm::vec3, setEmitVelocity); + READ_ENTITY_PROPERTY_TO_PROPERTIES(PROP_VELOCITY_SPREAD, glm::vec3, setVelocitySpread); + READ_ENTITY_PROPERTY_TO_PROPERTIES(PROP_EMIT_ACCELERATION, glm::vec3, setEmitAcceleration); + READ_ENTITY_PROPERTY_TO_PROPERTIES(PROP_ACCELERATION_SPREAD, glm::vec3, setAccelerationSpread); READ_ENTITY_PROPERTY_TO_PROPERTIES(PROP_PARTICLE_RADIUS, float, setParticleRadius); } @@ -1211,9 +1218,10 @@ void EntityItemProperties::markAllChanged() { _maxParticlesChanged = true; _lifespanChanged = true; _emitRateChanged = true; - _emitDirectionChanged = true; - _emitStrengthChanged = true; - _localGravityChanged = true; + _emitVelocityChanged = true; + _velocitySpreadChanged = true; + _emitAccelerationChanged = true; + _accelerationSpreadChanged = true; _particleRadiusChanged = true; _marketplaceIDChanged = true; diff --git a/libraries/entities/src/EntityItemProperties.h b/libraries/entities/src/EntityItemProperties.h index 31c2ffad1e..6d95faa9b1 100644 --- a/libraries/entities/src/EntityItemProperties.h +++ b/libraries/entities/src/EntityItemProperties.h @@ -131,9 +131,10 @@ public: DEFINE_PROPERTY(PROP_MAX_PARTICLES, MaxParticles, maxParticles, quint32); DEFINE_PROPERTY(PROP_LIFESPAN, Lifespan, lifespan, float); DEFINE_PROPERTY(PROP_EMIT_RATE, EmitRate, emitRate, float); - DEFINE_PROPERTY_REF(PROP_EMIT_DIRECTION, EmitDirection, emitDirection, glm::vec3); - DEFINE_PROPERTY(PROP_EMIT_STRENGTH, EmitStrength, emitStrength, float); - DEFINE_PROPERTY(PROP_LOCAL_GRAVITY, LocalGravity, localGravity, float); + DEFINE_PROPERTY_REF(PROP_EMIT_VELOCITY, EmitVelocity, emitVelocity, glm::vec3); + DEFINE_PROPERTY_REF(PROP_VELOCITY_SPREAD, VelocitySpread, velocitySpread, glm::vec3); + DEFINE_PROPERTY(PROP_EMIT_ACCELERATION, EmitAcceleration, emitAcceleration, glm::vec3); + DEFINE_PROPERTY(PROP_ACCELERATION_SPREAD, AccelerationSpread, accelerationSpread, glm::vec3); DEFINE_PROPERTY(PROP_PARTICLE_RADIUS, ParticleRadius, particleRadius, float); DEFINE_PROPERTY_REF(PROP_MARKETPLACE_ID, MarketplaceID, marketplaceID, QString); DEFINE_PROPERTY_REF(PROP_KEYLIGHT_COLOR, KeyLightColor, keyLightColor, xColor); @@ -311,9 +312,9 @@ inline QDebug operator<<(QDebug debug, const EntityItemProperties& properties) { DEBUG_PROPERTY_IF_CHANGED(debug, properties, MaxParticles, maxParticles, ""); DEBUG_PROPERTY_IF_CHANGED(debug, properties, Lifespan, lifespan, ""); DEBUG_PROPERTY_IF_CHANGED(debug, properties, EmitRate, emitRate, ""); - DEBUG_PROPERTY_IF_CHANGED(debug, properties, EmitDirection, emitDirection, ""); - DEBUG_PROPERTY_IF_CHANGED(debug, properties, EmitStrength, emitStrength, ""); - DEBUG_PROPERTY_IF_CHANGED(debug, properties, LocalGravity, localGravity, ""); + DEBUG_PROPERTY_IF_CHANGED(debug, properties, EmitVelocity, emitVelocity, ""); + DEBUG_PROPERTY_IF_CHANGED(debug, properties, EmitAcceleration, emitAcceleration, ""); + DEBUG_PROPERTY_IF_CHANGED(debug, properties, AccelerationSpread, accelerationSpread, ""); DEBUG_PROPERTY_IF_CHANGED(debug, properties, ParticleRadius, particleRadius, ""); DEBUG_PROPERTY_IF_CHANGED(debug, properties, MarketplaceID, marketplaceID, ""); DEBUG_PROPERTY_IF_CHANGED(debug, properties, BackgroundMode, backgroundMode, ""); diff --git a/libraries/entities/src/EntityPropertyFlags.h b/libraries/entities/src/EntityPropertyFlags.h index e439710695..abb8241d8f 100644 --- a/libraries/entities/src/EntityPropertyFlags.h +++ b/libraries/entities/src/EntityPropertyFlags.h @@ -96,9 +96,9 @@ enum EntityPropertyList { PROP_MAX_PARTICLES, PROP_LIFESPAN, PROP_EMIT_RATE, - PROP_EMIT_DIRECTION, + PROP_EMIT_VELOCITY, PROP_EMIT_STRENGTH, - PROP_LOCAL_GRAVITY, + PROP_EMIT_ACCELERATION, PROP_PARTICLE_RADIUS, PROP_COMPOUND_SHAPE_URL, // used by Model + zones entities @@ -134,7 +134,10 @@ enum EntityPropertyList { // Used by PolyLine entity PROP_NORMALS, PROP_STROKE_WIDTHS, - + + // used by particles + PROP_VELOCITY_SPREAD, + PROP_ACCELERATION_SPREAD, //////////////////////////////////////////////////////////////////////////////////////////////////// // ATTENTION: add new properties to end of list just ABOVE this line @@ -168,9 +171,9 @@ enum EntityPropertyList { PROP_ATMOSPHERE_CENTER = PROP_MAX_PARTICLES, PROP_ATMOSPHERE_INNER_RADIUS = PROP_LIFESPAN, PROP_ATMOSPHERE_OUTER_RADIUS = PROP_EMIT_RATE, - PROP_ATMOSPHERE_MIE_SCATTERING = PROP_EMIT_DIRECTION, + PROP_ATMOSPHERE_MIE_SCATTERING = PROP_EMIT_VELOCITY, PROP_ATMOSPHERE_RAYLEIGH_SCATTERING = PROP_EMIT_STRENGTH, - PROP_ATMOSPHERE_SCATTERING_WAVELENGTHS = PROP_LOCAL_GRAVITY, + PROP_ATMOSPHERE_SCATTERING_WAVELENGTHS = PROP_EMIT_ACCELERATION, PROP_ATMOSPHERE_HAS_STARS = PROP_PARTICLE_RADIUS, PROP_BACKGROUND_MODE = PROP_MODEL_URL, PROP_SKYBOX_COLOR = PROP_ANIMATION_URL, diff --git a/libraries/entities/src/ParticleEffectEntityItem.cpp b/libraries/entities/src/ParticleEffectEntityItem.cpp index 349e0c4d46..9e45efe88d 100644 --- a/libraries/entities/src/ParticleEffectEntityItem.cpp +++ b/libraries/entities/src/ParticleEffectEntityItem.cpp @@ -16,7 +16,6 @@ // - Just to get this out the door, I just did forward Euler integration. There are better ways. // - Gravity always points along the Y axis. Support an actual gravity vector. // - Add the ability to add arbitrary forces to the simulation. -// - Add controls for spread (which is currently hard-coded) and varying emission strength (not currently implemented). // - Add drag. // - Add some kind of support for collisions. // - There's no synchronization of the simulation across clients at all. In fact, it's using rand() under the hood, so @@ -50,9 +49,10 @@ const float ParticleEffectEntityItem::DEFAULT_ANIMATION_FPS = 30.0f; const quint32 ParticleEffectEntityItem::DEFAULT_MAX_PARTICLES = 1000; const float ParticleEffectEntityItem::DEFAULT_LIFESPAN = 3.0f; const float ParticleEffectEntityItem::DEFAULT_EMIT_RATE = 15.0f; -const glm::vec3 ParticleEffectEntityItem::DEFAULT_EMIT_DIRECTION(0.0f, 1.0f, 0.0f); -const float ParticleEffectEntityItem::DEFAULT_EMIT_STRENGTH = 25.0f; -const float ParticleEffectEntityItem::DEFAULT_LOCAL_GRAVITY = -9.8f; +const glm::vec3 ParticleEffectEntityItem::DEFAULT_EMIT_VELOCITY(0.0f, 5.0f, 0.0f); +const glm::vec3 ParticleEffectEntityItem::DEFAULT_VELOCITY_SPREAD(3.0f, 0.0f, 3.0f); +const glm::vec3 ParticleEffectEntityItem::DEFAULT_EMIT_ACCELERATION(0.0f, -9.8f, 0.0f); +const glm::vec3 ParticleEffectEntityItem::DEFAULT_ACCELERATION_SPREAD(0.0f, 0.0f, 0.0f); const float ParticleEffectEntityItem::DEFAULT_PARTICLE_RADIUS = 0.025f; const QString ParticleEffectEntityItem::DEFAULT_TEXTURES = ""; @@ -67,9 +67,10 @@ ParticleEffectEntityItem::ParticleEffectEntityItem(const EntityItemID& entityIte _maxParticles(DEFAULT_MAX_PARTICLES), _lifespan(DEFAULT_LIFESPAN), _emitRate(DEFAULT_EMIT_RATE), - _emitDirection(DEFAULT_EMIT_DIRECTION), - _emitStrength(DEFAULT_EMIT_STRENGTH), - _localGravity(DEFAULT_LOCAL_GRAVITY), + _emitVelocity(DEFAULT_EMIT_VELOCITY), + _velocitySpread(DEFAULT_VELOCITY_SPREAD), + _emitAcceleration(DEFAULT_EMIT_ACCELERATION), + _accelerationSpread(DEFAULT_ACCELERATION_SPREAD), _particleRadius(DEFAULT_PARTICLE_RADIUS), _lastAnimated(usecTimestampNow()), _animationLoop(), @@ -80,6 +81,7 @@ ParticleEffectEntityItem::ParticleEffectEntityItem(const EntityItemID& entityIte _particleLifetimes(DEFAULT_MAX_PARTICLES, 0.0f), _particlePositions(DEFAULT_MAX_PARTICLES, glm::vec3(0.0f, 0.0f, 0.0f)), _particleVelocities(DEFAULT_MAX_PARTICLES, glm::vec3(0.0f, 0.0f, 0.0f)), + _particleAccelerations(DEFAULT_MAX_PARTICLES, glm::vec3(0.0f, 0.0f, 0.0f)), _timeUntilNextEmit(0.0f), _particleHeadIndex(0), _particleTailIndex(0), @@ -94,75 +96,59 @@ ParticleEffectEntityItem::ParticleEffectEntityItem(const EntityItemID& entityIte ParticleEffectEntityItem::~ParticleEffectEntityItem() { } -void ParticleEffectEntityItem::setDimensions(const glm::vec3& value) { - computeAndUpdateDimensions(); -} void ParticleEffectEntityItem::setLifespan(float lifespan) { _lifespan = lifespan; +} + +void ParticleEffectEntityItem::setEmitVelocity(const glm::vec3& emitVelocity) { + _emitVelocity = emitVelocity; computeAndUpdateDimensions(); } -void ParticleEffectEntityItem::setEmitDirection(glm::vec3 emitDirection) { - _emitDirection = glm::normalize(emitDirection); +void ParticleEffectEntityItem::setVelocitySpread(const glm::vec3& velocitySpread) { + _velocitySpread = velocitySpread; computeAndUpdateDimensions(); } -void ParticleEffectEntityItem::setEmitStrength(float emitStrength) { - _emitStrength = emitStrength; + +void ParticleEffectEntityItem::setEmitAcceleration(const glm::vec3& emitAcceleration) { + _emitAcceleration = emitAcceleration; computeAndUpdateDimensions(); } -void ParticleEffectEntityItem::setLocalGravity(float localGravity) { - _localGravity = localGravity; +void ParticleEffectEntityItem::setAccelerationSpread(const glm::vec3& accelerationSpread){ + _accelerationSpread = accelerationSpread; computeAndUpdateDimensions(); } void ParticleEffectEntityItem::setParticleRadius(float particleRadius) { _particleRadius = particleRadius; - computeAndUpdateDimensions(); } void ParticleEffectEntityItem::computeAndUpdateDimensions() { - - const float t = _lifespan * 1.1f; // add 10% extra time, to account for incremental timer accumulation error. - const float MAX_RANDOM_FACTOR = (0.5f * 0.25f); - const float maxOffset = (MAX_RANDOM_FACTOR * _emitStrength) + _particleRadius; - - // bounds for x and z is easy to compute because there is no at^2 term. - float xMax = (_emitDirection.x * _emitStrength + maxOffset) * t; - float xMin = (_emitDirection.x * _emitStrength - maxOffset) * t; - - float zMax = (_emitDirection.z * _emitStrength + maxOffset) * t; - float zMin = (_emitDirection.z * _emitStrength - maxOffset) * t; - - // yEnd is where the particle will end. - float a = _localGravity; - float atSquared = a * t * t; - float v = _emitDirection.y * _emitStrength + maxOffset; - float vt = v * t; - float yEnd = 0.5f * atSquared + vt; - - // yApex is where the particle is at it's apex. - float yApexT = (-v / a); - float yApex = 0.0f; - - // only set apex if it's within the lifespan of the particle. - if (yApexT >= 0.0f && yApexT <= t) { - yApex = -(v * v) / (2.0f * a); - } - - float yMax = std::max(yApex, yEnd); - float yMin = std::min(yApex, yEnd); - - // times 2 because dimensions are diameters not radii. - glm::vec3 dims(2.0f * std::max(fabsf(xMin), fabsf(xMax)), - 2.0f * std::max(fabsf(yMin), fabsf(yMax)), - 2.0f * std::max(fabsf(zMin), fabsf(zMax))); - + const float time = _lifespan * 1.1f; // add 10% extra time to account for incremental timer accumulation error + + float maxVelocityX = fabsf(_velocity.x) + _velocitySpread.x; + float maxAccelerationX = fabsf(_acceleration.x) + _accelerationSpread.x; + float maxXDistance = (maxVelocityX * time) + (0.5 * maxAccelerationX * time * time); + + float maxVelocityY = fabs(_velocity.y) + _velocitySpread.y; + float maxAccelerationY = fabsf(_acceleration.y) + _accelerationSpread.y; + float maxYDistance = (maxVelocityY * time) + (0.5 * maxAccelerationY * time * time); + + float maxVelocityZ = fabsf(_velocity.z) + _velocitySpread.z; + float maxAccelerationZ = fabsf(_acceleration.z) + _accelerationSpread.z; + float maxZDistance = (maxVelocityZ * time) + (0.5 * maxAccelerationZ * time * time); + + float maxDistance = std::max(maxXDistance, std::max(maxYDistance, maxZDistance)); + + //times 2 because dimensions are diameters not radii + glm::vec3 dims(2.0 * maxDistance); EntityItem::setDimensions(dims); } + EntityItemProperties ParticleEffectEntityItem::getProperties() const { EntityItemProperties properties = EntityItem::getProperties(); // get the properties from our base class @@ -176,9 +162,9 @@ EntityItemProperties ParticleEffectEntityItem::getProperties() const { COPY_ENTITY_PROPERTY_TO_PROPERTIES(maxParticles, getMaxParticles); COPY_ENTITY_PROPERTY_TO_PROPERTIES(lifespan, getLifespan); COPY_ENTITY_PROPERTY_TO_PROPERTIES(emitRate, getEmitRate); - COPY_ENTITY_PROPERTY_TO_PROPERTIES(emitDirection, getEmitDirection); - COPY_ENTITY_PROPERTY_TO_PROPERTIES(emitStrength, getEmitStrength); - COPY_ENTITY_PROPERTY_TO_PROPERTIES(localGravity, getLocalGravity); + COPY_ENTITY_PROPERTY_TO_PROPERTIES(emitVelocity, getEmitVelocity); + + COPY_ENTITY_PROPERTY_TO_PROPERTIES(emitAcceleration, getEmitAcceleration); COPY_ENTITY_PROPERTY_TO_PROPERTIES(particleRadius, getParticleRadius); COPY_ENTITY_PROPERTY_TO_PROPERTIES(textures, getTextures); @@ -198,11 +184,12 @@ bool ParticleEffectEntityItem::setProperties(const EntityItemProperties& propert SET_ENTITY_PROPERTY_FROM_PROPERTIES(maxParticles, setMaxParticles); SET_ENTITY_PROPERTY_FROM_PROPERTIES(lifespan, setLifespan); SET_ENTITY_PROPERTY_FROM_PROPERTIES(emitRate, setEmitRate); - SET_ENTITY_PROPERTY_FROM_PROPERTIES(emitDirection, setEmitDirection); - SET_ENTITY_PROPERTY_FROM_PROPERTIES(emitStrength, setEmitStrength); - SET_ENTITY_PROPERTY_FROM_PROPERTIES(localGravity, setLocalGravity); + SET_ENTITY_PROPERTY_FROM_PROPERTIES(emitVelocity, setEmitVelocity); + SET_ENTITY_PROPERTY_FROM_PROPERTIES(emitAcceleration, setEmitAcceleration); + SET_ENTITY_PROPERTY_FROM_PROPERTIES(accelerationSpread, setAccelerationSpread); SET_ENTITY_PROPERTY_FROM_PROPERTIES(particleRadius, setParticleRadius); SET_ENTITY_PROPERTY_FROM_PROPERTIES(textures, setTextures); + SET_ENTITY_PROPERTY_FROM_PROPERTIES(velocitySpread, setVelocitySpread); if (somethingChanged) { bool wantDebug = false; @@ -247,17 +234,28 @@ int ParticleEffectEntityItem::readEntitySubclassDataFromBuffer(const unsigned ch if (propertyFlags.getHasProperty(PROP_ANIMATION_FRAME_INDEX)) { setAnimationFrameIndex(animationFrameIndex); } - READ_ENTITY_PROPERTY(PROP_ANIMATION_SETTINGS, QString, setAnimationSettings); READ_ENTITY_PROPERTY(PROP_SHAPE_TYPE, ShapeType, updateShapeType); READ_ENTITY_PROPERTY(PROP_MAX_PARTICLES, quint32, setMaxParticles); READ_ENTITY_PROPERTY(PROP_LIFESPAN, float, setLifespan); READ_ENTITY_PROPERTY(PROP_EMIT_RATE, float, setEmitRate); - READ_ENTITY_PROPERTY(PROP_EMIT_DIRECTION, glm::vec3, setEmitDirection); - READ_ENTITY_PROPERTY(PROP_EMIT_STRENGTH, float, setEmitStrength); - READ_ENTITY_PROPERTY(PROP_LOCAL_GRAVITY, float, setLocalGravity); - READ_ENTITY_PROPERTY(PROP_PARTICLE_RADIUS, float, setParticleRadius); - READ_ENTITY_PROPERTY(PROP_TEXTURES, QString, setTextures); + READ_ENTITY_PROPERTY(PROP_EMIT_VELOCITY, glm::vec3, setEmitVelocity); + + if (args.bitstreamVersion >= VERSION_ENTITIES_PARTICLE_MODIFICATIONS) { + READ_ENTITY_PROPERTY(PROP_EMIT_ACCELERATION, glm::vec3, setEmitAcceleration); + READ_ENTITY_PROPERTY(PROP_ACCELERATION_SPREAD, glm::vec3, setAccelerationSpread); + READ_ENTITY_PROPERTY(PROP_PARTICLE_RADIUS, float, setParticleRadius); + READ_ENTITY_PROPERTY(PROP_TEXTURES, QString, setTextures); + READ_ENTITY_PROPERTY(PROP_VELOCITY_SPREAD, glm::vec3, setVelocitySpread); + } else { + // EMIT_STRENGTH FAKEOUT + READ_ENTITY_PROPERTY(PROP_PARTICLE_RADIUS, float, setParticleRadius); + // LOCAL_GRAVITY FAKEOUT + READ_ENTITY_PROPERTY(PROP_PARTICLE_RADIUS, float, setParticleRadius); + // ACTUALLY PARTICLE RADIUS + READ_ENTITY_PROPERTY(PROP_PARTICLE_RADIUS, float, setParticleRadius); + READ_ENTITY_PROPERTY(PROP_TEXTURES, QString, setTextures); + } return bytesRead; } @@ -276,11 +274,12 @@ EntityPropertyFlags ParticleEffectEntityItem::getEntityProperties(EncodeBitstrea requestedProperties += PROP_MAX_PARTICLES; requestedProperties += PROP_LIFESPAN; requestedProperties += PROP_EMIT_RATE; - requestedProperties += PROP_EMIT_DIRECTION; - requestedProperties += PROP_EMIT_STRENGTH; - requestedProperties += PROP_LOCAL_GRAVITY; + requestedProperties += PROP_EMIT_VELOCITY; + requestedProperties += PROP_EMIT_ACCELERATION; + requestedProperties += PROP_ACCELERATION_SPREAD; requestedProperties += PROP_PARTICLE_RADIUS; requestedProperties += PROP_TEXTURES; + requestedProperties += PROP_VELOCITY_SPREAD; return requestedProperties; } @@ -303,11 +302,12 @@ void ParticleEffectEntityItem::appendSubclassData(OctreePacketData* packetData, APPEND_ENTITY_PROPERTY(PROP_MAX_PARTICLES, getMaxParticles()); APPEND_ENTITY_PROPERTY(PROP_LIFESPAN, getLifespan()); APPEND_ENTITY_PROPERTY(PROP_EMIT_RATE, getEmitRate()); - APPEND_ENTITY_PROPERTY(PROP_EMIT_DIRECTION, getEmitDirection()); - APPEND_ENTITY_PROPERTY(PROP_EMIT_STRENGTH, getEmitStrength()); - APPEND_ENTITY_PROPERTY(PROP_LOCAL_GRAVITY, getLocalGravity()); + APPEND_ENTITY_PROPERTY(PROP_EMIT_VELOCITY, getEmitVelocity()); + APPEND_ENTITY_PROPERTY(PROP_EMIT_ACCELERATION, getEmitAcceleration()); + APPEND_ENTITY_PROPERTY(PROP_ACCELERATION_SPREAD, getAccelerationSpread()); APPEND_ENTITY_PROPERTY(PROP_PARTICLE_RADIUS, getParticleRadius()); APPEND_ENTITY_PROPERTY(PROP_TEXTURES, getTextures()); + APPEND_ENTITY_PROPERTY(PROP_VELOCITY_SPREAD, getVelocitySpread()); } bool ParticleEffectEntityItem::isAnimatingSomething() const { @@ -487,8 +487,9 @@ void ParticleEffectEntityItem::extendBounds(const glm::vec3& point) { } void ParticleEffectEntityItem::integrateParticle(quint32 index, float deltaTime) { - glm::vec3 atSquared(0.0f, 0.5f * _localGravity * deltaTime * deltaTime, 0.0f); - glm::vec3 at(0.0f, _localGravity * deltaTime, 0.0f); + glm::vec3 accel = _particleAccelerations[index]; + glm::vec3 atSquared = (0.5f * deltaTime * deltaTime) * accel; + glm::vec3 at = accel * deltaTime; _particlePositions[index] += _particleVelocities[index] * deltaTime + atSquared; _particleVelocities[index] += at; } @@ -526,15 +527,22 @@ void ParticleEffectEntityItem::stepSimulation(float deltaTime) { quint32 i = _particleTailIndex; _particleLifetimes[i] = _lifespan; - // jitter the _emitDirection by a random offset - glm::vec3 randOffset; - randOffset.x = (randFloat() - 0.5f) * 0.25f * _emitStrength; - randOffset.y = (randFloat() - 0.5f) * 0.25f * _emitStrength; - randOffset.z = (randFloat() - 0.5f) * 0.25f * _emitStrength; + + glm::vec3 spreadOffset; + spreadOffset.x = -_velocitySpread.x + randFloat() * (_velocitySpread.x * 2.0f); + spreadOffset.y = -_velocitySpread.y + randFloat() * (_velocitySpread.y * 2.0f); + spreadOffset.z = -_velocitySpread.z + randFloat() * (_velocitySpread.z * 2.0f); + // set initial conditions - _particlePositions[i] = glm::vec3(0.0f, 0.0f, 0.0f); - _particleVelocities[i] = _emitDirection * _emitStrength + randOffset; + _particlePositions[i] = getPosition(); + _particleVelocities[i] = _emitVelocity + spreadOffset; + + spreadOffset.x = -_accelerationSpread.x + randFloat() * (_accelerationSpread.x * 2.0f); + spreadOffset.y = -_accelerationSpread.y + randFloat() * (_accelerationSpread.y * 2.0f); + spreadOffset.z = -_accelerationSpread.z + randFloat() * (_accelerationSpread.z * 2.0f); + + _particleAccelerations[i] = _emitAcceleration + spreadOffset; integrateParticle(i, timeLeftInFrame); extendBounds(_particlePositions[i]); diff --git a/libraries/entities/src/ParticleEffectEntityItem.h b/libraries/entities/src/ParticleEffectEntityItem.h index 994c609f0f..4ed9216e85 100644 --- a/libraries/entities/src/ParticleEffectEntityItem.h +++ b/libraries/entities/src/ParticleEffectEntityItem.h @@ -86,8 +86,6 @@ public: void setAnimationLastFrame(float lastFrame) { _animationLoop.setLastFrame(lastFrame); } float getAnimationLastFrame() const { return _animationLoop.getLastFrame(); } - virtual void setDimensions(const glm::vec3& value) override; - static const quint32 DEFAULT_MAX_PARTICLES; void setMaxParticles(quint32 maxParticles); quint32 getMaxParticles() const { return _maxParticles; } @@ -100,24 +98,31 @@ public: void setEmitRate(float emitRate) { _emitRate = emitRate; } float getEmitRate() const { return _emitRate; } - static const glm::vec3 DEFAULT_EMIT_DIRECTION; - void setEmitDirection(glm::vec3 emitDirection); - const glm::vec3& getEmitDirection() const { return _emitDirection; } + static const glm::vec3 DEFAULT_EMIT_VELOCITY; + void setEmitVelocity(const glm::vec3& emitVelocity); + const glm::vec3& getEmitVelocity() const { return _emitVelocity; } + + + static const glm::vec3 DEFAULT_VELOCITY_SPREAD; + void setVelocitySpread(const glm::vec3& velocitySpread); + const glm::vec3& getVelocitySpread() const { return _velocitySpread; } - static const float DEFAULT_EMIT_STRENGTH; - void setEmitStrength(float emitStrength); - float getEmitStrength() const { return _emitStrength; } - static const float DEFAULT_LOCAL_GRAVITY; - void setLocalGravity(float localGravity); - float getLocalGravity() const { return _localGravity; } + static const glm::vec3 DEFAULT_EMIT_ACCELERATION; + void setEmitAcceleration(const glm::vec3& emitAcceleration); + const glm::vec3& getEmitAcceleration() const { return _emitAcceleration; } + + static const glm::vec3 DEFAULT_ACCELERATION_SPREAD; + void setAccelerationSpread(const glm::vec3& accelerationSpread); + const glm::vec3& getAccelerationSpread() const { return _accelerationSpread; } static const float DEFAULT_PARTICLE_RADIUS; void setParticleRadius(float particleRadius); float getParticleRadius() const { return _particleRadius; } - + void computeAndUpdateDimensions(); + bool getAnimationIsPlaying() const { return _animationLoop.isRunning(); } float getAnimationFrameIndex() const { return _animationLoop.getFrameIndex(); } float getAnimationFPS() const { return _animationLoop.getFPS(); } @@ -145,9 +150,10 @@ protected: quint32 _maxParticles; float _lifespan; float _emitRate; - glm::vec3 _emitDirection; - float _emitStrength; - float _localGravity; + glm::vec3 _emitVelocity; + glm::vec3 _velocitySpread; + glm::vec3 _emitAcceleration; + glm::vec3 _accelerationSpread; float _particleRadius; quint64 _lastAnimated; AnimationLoop _animationLoop; @@ -160,6 +166,7 @@ protected: QVector _particleLifetimes; QVector _particlePositions; QVector _particleVelocities; + QVector _particleAccelerations; float _timeUntilNextEmit; // particle arrays are a ring buffer, use these indicies diff --git a/libraries/networking/src/udt/PacketHeaders.cpp b/libraries/networking/src/udt/PacketHeaders.cpp index db2a426696..7e73b4c660 100644 --- a/libraries/networking/src/udt/PacketHeaders.cpp +++ b/libraries/networking/src/udt/PacketHeaders.cpp @@ -67,7 +67,7 @@ PacketVersion versionForPacketType(PacketType::Value packetType) { case EntityAdd: case EntityEdit: case EntityData: - return VERSION_OCTREE_CENTERED_ORIGIN; + return VERSION_ENTITIES_PARTICLE_MODIFICATIONS; case AvatarData: return 12; default: diff --git a/libraries/networking/src/udt/PacketHeaders.h b/libraries/networking/src/udt/PacketHeaders.h index 75d8105dca..fa6178b627 100644 --- a/libraries/networking/src/udt/PacketHeaders.h +++ b/libraries/networking/src/udt/PacketHeaders.h @@ -143,5 +143,6 @@ const PacketVersion VERSION_ENTITIES_NEW_PROTOCOL_LAYER = 35; const PacketVersion VERSION_POLYVOX_TEXTURES = 36; const PacketVersion VERSION_ENTITIES_POLYLINE = 37; const PacketVersion VERSION_OCTREE_CENTERED_ORIGIN = 38; +const PacketVersion VERSION_ENTITIES_PARTICLE_MODIFICATIONS = 39; #endif // hifi_PacketHeaders_h \ No newline at end of file