RewindData.cpp File Reference

#include "RewindData.h"
#include "PBDRigidsSolver.h"
#include "PhysicsProxy/SingleParticlePhysicsProxy.h"
#include "PhysicsProxy/ClusterUnionPhysicsProxy.h"
#include "PhysicsProxy/GeometryCollectionPhysicsProxy.h"
#include "HAL/IConsoleManager.h"
#include "Chaos/PBDJointConstraints.h"
#include "Misc/FileHelper.h"
#include "Misc/Paths.h"
#include "Misc/StringOutputDevice.h"
#include "Chaos/Island/IslandManager.h"

Namespaces
namespace	Chaos

Macros
#define	REWIND_DESYNC   0

Enumerations
enum class	Chaos::EResimFrameValidation : int32 { Chaos::FullValidation = 0 , Chaos::IslandValidation = 1 , Chaos::TriggerParticleValidation = 2 }

Functions
bool	Chaos::SimWritablePropsMayChange (const TGeometryParticleHandle< FReal, 3 > &Handle)

Variables
bool	Chaos::bCVarRewindDataOptimization = true
FAutoConsoleVariableRef	Chaos::CVarRewindDataOptimization (TEXT("p.Resim.RewindDataOptimization"), bCVarRewindDataOptimization, TEXT("Default value for RewinData optimization, note that this can be overridden at runtime by API calls. Effect: Only alter the minimum required properties during a resim for particles not marked for FullResim and only cache data during the PrePushData phase and lower memory allocation for the history cache to 1/3 of non-optimized flow."))
CHAOS_API bool	Chaos::bResimAllowRewindToResimulatedFrames = true
FAutoConsoleVariableRef	Chaos::CVarResimAllowRewindToResimulatedFrames (TEXT("p.Resim.AllowRewindToResimulatedFrames"), bResimAllowRewindToResimulatedFrames, TEXT("Allow rewinding back to a frame that was previously part of a resimulation. If a resimulation is performed between frame 100-110, allow a new resim from 105-115 if needed, else next resim will be able to start from frame 111."))
CHAOS_API float	Chaos::ResimAllowRewindToResimulatedFramesOverlapPercent = 1.0f
FAutoConsoleVariableRef	Chaos::CVarResimAllowRewindToResimulatedFramesOverlapPercent (TEXT("p.Resim.AllowRewindToResimulatedFrames.OverlapPercent"), ResimAllowRewindToResimulatedFramesOverlapPercent, TEXT("Value in percent as a multiplier, 0.3 = 30%. When p.Resim.AllowRewindToResimulatedFrames is true, this sets how many frames of overlap we allow when rewinding back past a previous resimulation. If a resimulation is performed between frame 100-110 (10 frames), 30% overlap would allow 3 frames to get resimulated again, i.e. we would be allowed to rewind back to frame 107 again if we need to."))
CHAOS_API int32	Chaos::SkipDesyncTest = 0
FAutoConsoleVariableRef	Chaos::CVarSkipDesyncTest (TEXT("p.SkipDesyncTest"), SkipDesyncTest, TEXT("Skips hard desync test, this means all particles will assume to be clean except spawning at different times. This is useful for a perf lower bound, not actually correct"))
CHAOS_API int32	Chaos::ResimFrameValidation = static_cast<int32>(EResimFrameValidation::IslandValidation)
FAutoConsoleVariableRef	Chaos::CVarResimFrameValidationLeniency (TEXT("p.Resim.ResimFrameValidation"), ResimFrameValidation, TEXT("0 = no leniency, all dirty particles need a valid target. 1 = Island leniency, all particles in resim islands need a valid target. 2 = Full leniency, only the particle triggering the resim need a valid target."))
CHAOS_API bool	Chaos::bResimIncompleteHistory = true
FAutoConsoleVariableRef	Chaos::CVarResimIncompleteHistory (TEXT("p.Resim.IncompleteHistory"), bResimIncompleteHistory, TEXT("If a valid resim frame can't be found, use the requested resim frame and perform a resimulation with incomplete data."))
CHAOS_API bool	Chaos::bFindValidInputHistory = true
FAutoConsoleVariableRef	Chaos::CVarResimFindValidInputHistory (TEXT("p.Resim.FindValidInputHistory"), bFindValidInputHistory, TEXT("If the particle that needs resimulation has custom input history, find a valid resim frame where inputs are available."))
CHAOS_API bool	Chaos::bFindValidStateHistory = true
FAutoConsoleVariableRef	Chaos::CVarResimFindValidStateHistory (TEXT("p.Resim.FindValidStateHistory"), bFindValidStateHistory, TEXT("If the particle that needs resimulation has custom state history, find a valid resim frame where states are available."))
CHAOS_API bool	Chaos::bUseParticleResimAsFollowerDuringTargetValidation = false
FAutoConsoleVariableRef	Chaos::CVarUseParticleResimAsFollowerDuringTargetValidation (TEXT("p.Resim.UseParticleResimAsFollowerDuringTargetValidation"), bUseParticleResimAsFollowerDuringTargetValidation, TEXT("If disabled, do not use the particle's ResimAsFollower flag when trying to find a valid resim frame."))
CHAOS_API int32	Chaos::InterpolateTargetGaps = 5
FAutoConsoleVariableRef	Chaos::CVarResimInterpolateTargetGaps (TEXT("p.Resim.InterpolateTargetGaps"), InterpolateTargetGaps, TEXT("How many frame gaps in replicated targets we should fill by interpolating between the previous and the new target received. Value in max number of frames to interpolate, deactivate by setting to 0."))

Macro Definition Documentation

REWIND_DESYNC

#define REWIND_DESYNC   0