#include "Chaos/PBDRigidClustering.h"
#include "Chaos/ErrorReporter.h"
#include "Chaos/ImplicitObjectTransformed.h"
#include "Chaos/ImplicitObjectUnion.h"
#include "Chaos/Levelset.h"
#include "Chaos/MassProperties.h"
#include "Chaos/PBDRigidsEvolution.h"
#include "Chaos/PBDCollisionConstraints.h"
#include "Chaos/PBDRigidClusteringAlgo.h"
#include "Chaos/Sphere.h"
#include "Chaos/UniformGrid.h"
#include "ChaosStats.h"
#include "Containers/Queue.h"
#include "ProfilingDebugging/ScopedTimers.h"
#include "Voronoi/Voronoi.h"
#include "Chaos/PBDRigidsEvolutionGBF.h"
#include "Chaos/PerParticleInitForce.h"
#include "Chaos/PerParticleEulerStepVelocity.h"
#include "Chaos/PerParticleEtherDrag.h"
#include "Chaos/PerParticlePBDEulerStep.h"
#include "Chaos/StrainModification.h"
#include "Chaos/ConvexOptimizer.h"
#include "PhysicsProxy/GeometryCollectionPhysicsProxy.h"
#include "PhysicsProxy/ClusterUnionPhysicsProxy.h"
#include "CoreMinimal.h"

Namespaces
namespace	GeometryCollectionPhysicsProxy

namespace	GeometryCollectionPhysicsProxy::Private

namespace	Chaos

namespace	Chaos::CVars

Functions
CHAOS_API bool	GeometryCollectionPhysicsProxy::Private::BuildGeometryForChildrenOnPT (const FSimulationParameters &Params)

template<typename TProxy = FGeometryCollectionPhysicsProxy>
TProxy *	Chaos::GetConcreteProxy (FPBDRigidClusteredParticleHandle *ClusteredParticle)

template<typename TProxy = FGeometryCollectionPhysicsProxy>
const TProxy *	Chaos::GetConcreteProxy (const FPBDRigidClusteredParticleHandle *ClusteredParticle)

	Chaos::DECLARE_CYCLE_STAT (TEXT("TPBDRigidClustering<>::CreateClusterParticle"), STAT_CreateClusterParticle, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("TPBDRigidClustering<>::AddParticlesToCluster"), STAT_AddParticlesToCluster, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("TPBDRigidClustering<>::RemoveParticlesFromCluster"), STAT_RemoveParticlesFromCluster, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("TPBDRigidClustering<>::UpdateClusterParticlePropertiesFromChildren"), STAT_UpdateClusterParticlePropertiesFromChildren, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("TPBDRigidClustering<>::CreateClusterParticleFromClusterChildren"), STAT_CreateClusterParticleFromClusterChildren, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("TPBDRigidClustering<>::UnionClusterGroups"), STAT_UnionClusterGroups, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("TPBDRigidClustering<>::DeactivateClusterParticle"), STAT_DeactivateClusterParticle, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("TPBDRigidClustering<>::ReleaseClusterParticles(STRAIN)"), STAT_ReleaseClusterParticles_STRAIN, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("TPBDRigidClustering<>::ReleaseClusterParticlesNoInternalCluster"), STAT_ReleaseClusterParticlesNoInternalCluster, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("TPBDRigidClustering<>::HandleConnectivityOnReleaseClusterParticle"), HandleConnectivityOnReleaseClusterParticle, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("TPBDRigidClustering<>::ReleaseClusterParticles(LIST)"), STAT_ReleaseClusterParticles_LIST, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("TPBDRigidClustering<>::ReleaseChildrenParticleAndParents"), ReleaseChildrenParticleAndParents, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("TPBDRigidClustering<>::AdvanceClustering"), STAT_AdvanceClustering, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("TPBDRigidClustering<>::Update Impulse from Strain"), STAT_UpdateImpulseStrain, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("TPBDRigidClustering<>::Update Dirty Impulses"), STAT_UpdateDirtyImpulses, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("FRigidClustering::CleanupInternalClustersForProxy"), STAT_CleanupInternalClustersForProxy, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("BreakingModel_AllParticles"), STAT_BreakingModel_AllParticles, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("BreakingModel"), STAT_BreakingModel, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("FRigidClustering::Visitor"), STAT_ClusterVisitor, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("TPBDRigidClustering<>::GetActiveClusterIndex"), STAT_GetActiveClusterIndex, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("TPBDRigidClustering<>::GenerateConnectionGraph"), STAT_GenerateConnectionGraph, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("TPBDRigidClustering<>::ClearConnectionGraph"), STAT_ClearConnectionGraph, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("ComputeStrainFromCollision"), STAT_ComputeStrainFromCollision, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("ResetCollisionImpulseArray"), STAT_ResetCollisionImpulseArray, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("TPBDRigidClustering<>::UpdateConnectivityGraphUsingPointImplicit"), STAT_UpdateConnectivityGraphUsingPointImplicit, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("TPBDRigidClustering<>::FixConnectivityGraphUsingDelaunayTriangulation"), STAT_FixConnectivityGraphUsingDelaunayTriangulation, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("TPBDRigidClustering<>::UpdateConnectivityGraphUsingDelaunayTriangulation"), STAT_UpdateConnectivityGraphUsingDelaunayTriangulation, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("TPBDRigidClustering<>::UpdateConnectivityGraphUsingDelaunayTriangulationWithBoundsOverlaps"), STAT_UpdateConnectivityGraphUsingDelaunayTriangulationWithBoundsOverlaps, STATGROUP_Chaos)

	Chaos::DECLARE_CYCLE_STAT (TEXT("TPBDRigidClustering<>::RemoveNodeConnections"), STAT_RemoveNodeConnections, STATGROUP_Chaos)

FClusterCreationParameters::EConnectionMethod	Chaos::ToInternalConnectionMethod (EClusterUnionMethod InMethod)

Variables
FRealSingle	Chaos::ClusterDistanceThreshold = 100.f

FAutoConsoleVariableRef	Chaos::CVarClusterDistance (TEXT("p.ClusterDistanceThreshold"), ClusterDistanceThreshold, TEXT("How close a cluster child must be to a contact to break off"))

int32	Chaos::UseConnectivity = 1

FAutoConsoleVariableRef	Chaos::CVarUseConnectivity (TEXT("p.UseConnectivity"), UseConnectivity, TEXT("Whether to use connectivity graph when breaking up clusters"))

bool	Chaos::bCheckForInterclusterEdgesOnRelease = true

FAutoConsoleVariableRef	Chaos::CVarCheckForInterclusterEdgesOnRelease (TEXT("p.Chaos.CheckForInterclusterEdgesOnRelease"), bCheckForInterclusterEdgesOnRelease, TEXT("Whether to check for intercluster edges when removing a child from its parent cluster so that we can add the particle back into a cluster union."))

bool	Chaos::bOnlyUseInterclusterEdgesAttachedToMainParticles = true

FAutoConsoleVariableRef	Chaos::CVarOnlyUseInterclusterEdgesAttachedToMainParticles (TEXT("p.Chaos.OnlyUseInterclusterEdgesAttachedToMainParticles"), bOnlyUseInterclusterEdgesAttachedToMainParticles, TEXT("If true, an intercluster edge must be directly attached to a main particle for the particle to remain a part of the cluster union."))

int32	Chaos::ComputeClusterCollisionStrains = 1

FAutoConsoleVariableRef	Chaos::CVarComputeClusterCollisionStrains (TEXT("p.ComputeClusterCollisionStrains"), ComputeClusterCollisionStrains, TEXT("Whether to use collision constraints when processing clustering."))

int32	Chaos::DeactivateClusterChildren = 0

FAutoConsoleVariableRef	Chaos::CVarDeactivateClusterChildren (TEXT("p.DeactivateClusterChildren"), DeactivateClusterChildren, TEXT("If children should be decativated when broken and put into another cluster."))

int32	Chaos::UseBoundingBoxForConnectionGraphFiltering = 0

FAutoConsoleVariableRef	Chaos::CVarUseBoundingBoxForConnectionGraphFiltering (TEXT("p.UseBoundingBoxForConnectionGraphFiltering"), UseBoundingBoxForConnectionGraphFiltering, TEXT("when on, use bounding box overlaps to filter connection during the connection graph generation [def: 0]"))

float	Chaos::BoundingBoxMarginForConnectionGraphFiltering = 0

FAutoConsoleVariableRef	Chaos::CVarBoundingBoxMarginForConnectionGraphFiltering (TEXT("p.BoundingBoxMarginForConnectionGraphFiltering"), BoundingBoxMarginForConnectionGraphFiltering, TEXT("when UseBoundingBoxForConnectionGraphFiltering is on, the margin to use for the oevrlap test [def: 0]"))

int32	Chaos::GraphPropagationBasedCollisionImpulseProcessing = 0

FAutoConsoleVariableRef	Chaos::CVarGraphPropagationBasedCollisionImpulseProcessing (TEXT("p.GraphPropagationBasedCollisionImpulseProcessing"), GraphPropagationBasedCollisionImpulseProcessing, TEXT("when processing collision impulse toc ompute strain, pick the closest child from the impact point and propagate using the connection graph [def: 0]"))

float	Chaos::GraphPropagationBasedCollisionFactor = 1

FAutoConsoleVariableRef	Chaos::CVarGraphPropagationBasedCollisionFactor (TEXT("p.GraphPropagationBasedCollisionFactor"), GraphPropagationBasedCollisionFactor, TEXT("when p.GraphPropagationBasedCollisionImpulseProcessing is on, the percentage [0-1] of remaining damage that is distributed to the connected pieces"))

float	Chaos::RestoreBreakingMomentumPercent = .5

FAutoConsoleVariableRef	Chaos::CVarRestoreBreakingMomentumPercent (TEXT("p.RestoreBreakingMomentumPercent"), RestoreBreakingMomentumPercent, TEXT("When a rigid cluster is broken, objects that its in contact with will receive an impulse to restore this percent of their momentum prior to the break."))

int32	Chaos::ClusteringParticleReleaseThrottlingMinCount = INDEX_NONE

FAutoConsoleVariableRef	Chaos::CVarClusteringParticleReleaseThrottlingMinCount (TEXT("p.Clustering.ParticleReleaseThrottlingMinCount"), ClusteringParticleReleaseThrottlingMinCount, TEXT("Minimum number of active geometry collection to reach before clustering start to disable a percentage of the released particle per cluster"))

int32	Chaos::ClusteringParticleReleaseThrottlingMaxCount = INDEX_NONE

FAutoConsoleVariableRef	Chaos::CVarClusteringParticleReleaseThrottlingMaxCount (TEXT("p.Clustering.ParticleReleaseThrottlingMaxCount"), ClusteringParticleReleaseThrottlingMaxCount, TEXT("Maximum number of active geometry collection to reach before all released clustering disable all released particle instantly"))

bool	Chaos::CVars::bChaosEnableOverrideSingleParticleTypeToCluster = false

int32	Chaos::UnionsHaveCollisionParticles = 0

FAutoConsoleVariableRef	Chaos::CVarUnionsHaveCollisionParticles (TEXT("p.UnionsHaveCollisionParticles"), UnionsHaveCollisionParticles, TEXT(""))

FAutoConsoleVariableRef	Chaos::CVarBreakMode (TEXT("p.chaos.clustering.breakonlystrained"), GClusterBreakOnlyStrained, TEXT("If enabled we only process strained clusters for breaks, if disabled all clusters are traversed and checked"))

FAutoConsoleVariableRef	Chaos::CVarPerAdvanceBreaksAllowed (TEXT("p.Chaos.Clustering.PerAdvanceBreaksAllowed"), GPerAdvanceBreaksAllowed, TEXT("Number of breaks allowed to occur for each invocation of AdvanceClustering"))

FAutoConsoleVariableRef	Chaos::CVarPerAdvanceBreaksRescheduleLimit (TEXT("p.Chaos.Clustering.PerAdvanceBreaksRescheduleLimit"), GPerAdvanceBreaksRescheduleLimit, TEXT("Number of breaks allowed to be rescheduled for next frame if any "))

FAutoConsoleVariableRef	Chaos::CVarDumpClusterAndReleaseStats (TEXT("p.Chaos.Clustering.DumpClusterAndReleaseStats"), GDumpClusterAndReleaseStats, TEXT("Report the number of cluster processes and released particles per frame, on/off 1/0"))

FRealSingle	Chaos::MinImpulseForStrainEval = 980 * 2 * 1.f / 30.f

FAutoConsoleVariableRef	Chaos::CVarMinImpulseForStrainEval (TEXT("p.chaos.MinImpulseForStrainEval"), MinImpulseForStrainEval, TEXT("Minimum accumulated impulse before accumulating for strain eval "))

bool	Chaos::bUseContactSpeedForStrainThreshold = true

FAutoConsoleVariableRef	Chaos::CVarUseContactSpeedForStrainEval (TEXT("p.chaos.UseContactSpeedForStrainEval"), bUseContactSpeedForStrainThreshold, TEXT("Whether to use contact speed to discard contacts when updating cluster strain (true: use speed, false: use impulse)"))

FRealSingle	Chaos::MinContactSpeedForStrainEval = 1.0f

FAutoConsoleVariableRef	Chaos::CVarMinContactSpeedForStrainEval (TEXT("p.chaos.MinContactSpeedForStrainEval"), MinContactSpeedForStrainEval, TEXT("Minimum speed at the contact before accumulating for strain eval "))

Namespaces

Functions

Variables