/// <summary>
/// LateUpdate will prepare and call for calculations on each particle system.
/// All threaded calculation is done after Update to ensure stable movement of particles.
/// </summary>
void LateUpdate()
{
activeThreads = 0;
if (activeSystems.Count>0)
activeSystems.Clear();
frameCount++;
isFirstUnsafeAutomaticFrames = frameCount<unsafeAutomaticThreadFrames||threadAggregatorRuns<unsafeAutomaticThreadFrames;
if (reference!=this) {
InitializePlayground();
return;
}
// Update time
SetTime();
// Check the global event delegates for availability
CheckEvents();
// Prepare all global manipulators
for (int m = 0; m<manipulators.Count; m++)
manipulators[m].Update();
// Return if no particle systems are available
if (particleSystems.Count==0)
return;
hasActiveParticleSystems = false;
hasLocalNoThreads = false;
hasLocalOnePerSystem = false;
hasLocalOneForAll = false;
hasActiveSkinnedMeshes = false;
hasActiveTurbulence = false;
if (previousThreadMethod!=threadMethod) {
isDoneThread = true;
previousThreadMethod = threadMethod;
}
if (threadMethod!=ThreadMethod.OneForAll)
isDoneThread = true;
if (previousSkinnedMeshThreadMethod!=skinnedMeshThreadMethod) {
isDoneThreadSkinned = true;
previousSkinnedMeshThreadMethod = skinnedMeshThreadMethod;
}
if (previousTurbulenceThreadMethod!=turbulenceThreadMethod) {
isDoneThreadTurbulence = true;
previousTurbulenceThreadMethod = turbulenceThreadMethod;
}
// Prepare all particle systems
Camera mainCamera = Camera.main;
bool frustumPlanesSet = false;
bool hasSourceUpdateNow = false;
int currentParticleSystemCount = particleSystems.Count;
for (int i = 0; i<particleSystems.Count; i++) {
if (particleSystems[i]!=null &&
!particleSystems[i].isSnapshot &&
particleSystems[i].shurikenParticleSystem!=null &&
particleSystems[i].particleSystemGameObject.activeInHierarchy &&
particleSystems[i].Initialized() &&
!particleSystems[i].IsSettingParticleCount() &&
!particleSystems[i].IsSettingLifetime() &&
!particleSystems[i].IsYieldRefreshing() &&
!particleSystems[i].InTransition() &&
!particleSystems[i].IsLoading() &&
!particleSystems[i].IsPrewarming() &&
!particleSystems[i].IsSettingParticleTime()) {
// Catch up Shuriken particle lifetime with the update rate
if (Time.frameCount%particleSystems[i].updateRate!=0) {
for (int p = 0; p<particleSystems[i].particleCount; p++)
particleSystems[i].particleCache[p].lifetime = (particleSystems[i].playgroundCache.death[p]-particleSystems[i].playgroundCache.birth[p])-particleSystems[i].playgroundCache.lifetimeSubtraction[p];
particleSystems[i].isReadyForThreadedCalculations = false;
continue;
}
// Handle any system additions or removals
if (currentParticleSystemCount > particleSystems.Count) {
if (i>0) {
i--;
currentParticleSystemCount = particleSystems.Count;
} else {hasActiveParticleSystems=false; return;}
} else if (currentParticleSystemCount < particleSystems.Count) {
currentParticleSystemCount = particleSystems.Count;
}
if (particleSystems.Count==0 || i>=particleSystems.Count) {hasActiveParticleSystems=false; return;}
// Update the main camera frustum planes (this is used for culling particle systems)
if (!frustumPlanesSet && particleSystems[i].pauseCalculationWhenInvisible && mainCamera!=null && mainCamera.enabled) {
frustumPlanes = GeometryUtility.CalculateFrustumPlanes(mainCamera);
frustumPlanesSet = true;
}
// Update any particle system using onlySourcePositioning or onlyLifetimePositioning
if (particleSystems[i].onlySourcePositioning||particleSystems[i].onlyLifetimePositioning)
if (!particleSystems[i].UpdateSystem())
continue;
// Update any changes. Particle system may also be removed here.
if (particleSystems.Count>0 && i<particleSystems.Count) {
// Prepare for threaded calculations
particleSystems[i].isReadyForThreadedCalculations = particleSystems[i].PrepareThreadedCalculations();
if (particleSystems[i].IsAlive()) {
hasActiveParticleSystems = true;
if (particleSystems[i].onlySourcePositioning||particleSystems[i].onlyLifetimePositioning)
hasSourceUpdateNow = true;
if (threadMethod==ThreadMethod.Automatic)
activeSystems.Add (i);
if (!particleSystems[i].forceSkinnedMeshUpdateOnMainThread && particleSystems[i].IsSkinnedWorldObjectReady() && particleSystems[i].calculate)
hasActiveSkinnedMeshes = true;
if (particleSystems[i].HasTurbulence() && particleSystems[i].calculate)
hasActiveTurbulence = true;
switch (particleSystems[i].threadMethod) {
case ThreadMethodLocal.NoThreads:hasLocalNoThreads=true;break;
case ThreadMethodLocal.OnePerSystem:hasLocalOnePerSystem=true;break;
case ThreadMethodLocal.OneForAll:hasLocalOneForAll=true;break;
}
} else particleSystems[i].isReadyForThreadedCalculations = false;
} else if (particleSystems.Count>0 && i<particleSystems.Count && particleSystems[i]!=null) {
particleSystems[i].isReadyForThreadedCalculations = false;
}
} else if (particleSystems[i]!=null) {
particleSystems[i].isReadyForThreadedCalculations = false;
if (particleSystems[i].IsPrewarming()) {
if (particleSystems[i].HasTurbulence()) {
hasActiveTurbulence = true;
hasActiveParticleSystems = true;
}
}
}
}
// Proceed if we have any active particle systems
if (hasActiveParticleSystems) {
// Call for threaded calculations
ThreadAggregator();
// Call for immediate update on particle systems using onlySourcePositioning or onlyLifetimePositioning
if (hasSourceUpdateNow) {
for (int i = 0; i<particleSystems.Count; i++) {
if (particleSystems[i]!=null &&
(particleSystems[i].onlySourcePositioning || particleSystems[i].onlyLifetimePositioning) &&
particleSystems[i].isReadyForThreadedCalculations &&
!particleSystems[i].InTransition() &&
!particleSystems[i].IsLoading() &&
particleSystems[i].IsReady()) {
particleSystems[i].UpdateShuriken();
}
}
}
}
// Reset hierarchy repaint check
#if UNITY_EDITOR
PlaygroundParticlesC.didHierarchyRepaint = false;
#endif
}
// Update is called both in Edit- and Play Mode once per frame
void Update()
{
activeThreads = 0;
frameCount++;
isFirstUnsafeAutomaticFrames = frameCount<unsafeAutomaticThreadFrames||threadAggregatorRuns<unsafeAutomaticThreadFrames;
if (reference!=this) {
InitializePlayground();
return;
}
// Update time
SetTime();
// Check the global event delegates for availability
CheckEvents();
// Prepare all global manipulators
for (int m = 0; m<manipulators.Count; m++)
manipulators[m].Update();
// Return if no particle systems are available
if (particleSystems.Count==0)
return;
hasActiveParticleSystems = false;
hasLocalNoThreads = false;
hasLocalOnePerSystem = false;
hasLocalOneForAll = false;
hasActiveSkinnedMeshes = false;
hasActiveTurbulence = false;
if (previousThreadMethod!=threadMethod) {
isDoneThread = true;
previousThreadMethod = threadMethod;
}
if (threadMethod!=ThreadMethod.OneForAll)
isDoneThread = true;
if (previousSkinnedMeshThreadMethod!=skinnedMeshThreadMethod) {
isDoneThreadSkinned = true;
previousSkinnedMeshThreadMethod = skinnedMeshThreadMethod;
}
if (previousTurbulenceThreadMethod!=turbulenceThreadMethod) {
isDoneThreadTurbulence = true;
previousTurbulenceThreadMethod = turbulenceThreadMethod;
}
// Prepare all particle systems
int currentParticleSystemCount = particleSystems.Count;
for (int i = 0; i<particleSystems.Count; i++) {
if (particleSystems[i]!=null &&
particleSystems[i].calculate &&
!particleSystems[i].isSnapshot &&
particleSystems[i].shurikenParticleSystem!=null &&
particleSystems[i].particleSystemGameObject.activeInHierarchy &&
particleSystems[i].Initialized() &&
!particleSystems[i].IsSettingParticleCount() &&
!particleSystems[i].IsSettingLifetime() &&
!particleSystems[i].IsYieldRefreshing() &&
!particleSystems[i].InTransition() &&
!particleSystems[i].IsLoading() &&
Time.frameCount%particleSystems[i].updateRate==0) {
if (currentParticleSystemCount > particleSystems.Count) {
if (i>0) {
i--;
currentParticleSystemCount = particleSystems.Count;
} else return;
} else if (currentParticleSystemCount < particleSystems.Count) {
currentParticleSystemCount = particleSystems.Count;
}
if (particleSystems.Count==0 || i>=particleSystems.Count) return;
// Update any changes. Particle system may also be removed here.
if (particleSystems[i].UpdateSystem() && (particleSystems.Count>0 && i<particleSystems.Count)) {
// Prepare for threaded calculations
particleSystems[i].isReadyForThreadedCalculations = particleSystems[i].PrepareThreadedCalculations();
if (particleSystems[i].IsAlive()) {
hasActiveParticleSystems = true;
if (particleSystems[i].IsSkinnedWorldObjectReady())
hasActiveSkinnedMeshes = true;
if (particleSystems[i].HasTurbulence())
hasActiveTurbulence = true;
switch (particleSystems[i].threadMethod) {
case ThreadMethodLocal.NoThreads:hasLocalNoThreads=true;break;
case ThreadMethodLocal.OnePerSystem:hasLocalOnePerSystem=true;break;
case ThreadMethodLocal.OneForAll:hasLocalOneForAll=true;break;
}
} else particleSystems[i].isReadyForThreadedCalculations = false;
} else if (particleSystems.Count>0 && i<particleSystems.Count && particleSystems[i]!=null) {
particleSystems[i].isReadyForThreadedCalculations = false;
}
} else if (particleSystems[i]!=null)
particleSystems[i].isReadyForThreadedCalculations = false;
}
// Call for threaded calculations
if (hasActiveParticleSystems)
ThreadAggregator();
}
