Unreal Engine Issues and Bug Tracker (UE-95896)

Description

This is because THeightField::PhiWithNormal has not been implemented yet.

Steps to Reproduce

open attached project on chaos enabled 4.25 engine [Link Removed]
Open /Content/LandscapeLevel
start PIE or simulate

Result

An assertion occurs.

Assertion failed: false [File:E:\dev\UnrealEngine-4.25.1\Engine\Source\Runtime\Experimental\Chaos\Public\Chaos/HeightField.h] [Line: 56]

Callstack

> UE4Editor-Chaos.dll!Chaos::THeightField<float>::PhiWithNormal(const Chaos::TVector<float,3> & x, Chaos::TVector<float,3> & Normal) Line 56 C++ Symbols loaded.
 UE4Editor-Chaos.dll!Chaos::Collisions::SampleObjectNormalAverageHelper<float,3>(const Chaos::FImplicitObject & Object, const Chaos::TRigidTransform<float,3> & ObjectTransform, const Chaos::TRigidTransform<float,3> & SampleToObjectTransform, const Chaos::TVector<float,3> & SampleParticle, float Thickness, float & TotalThickness, Chaos::TRigidBodyPointContactConstraint<float,3> & Constraint) Line 120 C++ Symbols loaded.
 UE4Editor-Chaos.dll!Chaos::Collisions::SampleObject<1>(const Chaos::FImplicitObject & Object, const Chaos::TRigidTransform<float,3> & ObjectTransform, const Chaos::TBVHParticles<float,3> & SampleParticles, const Chaos::TRigidTransform<float,3> & SampleParticlesTransform, float Thickness, Chaos::TRigidBodyPointContactConstraint<float,3> & Constraint) Line 442 C++ Symbols loaded.
 UE4Editor-Chaos.dll!Chaos::Collisions::UpdateLevelsetLevelsetConstraint<1,float,3>(const float CullDistance, Chaos::TRigidBodyPointContactConstraint<float,3> & Constraint) Line 1831 C++ Symbols loaded.
 UE4Editor-Chaos.dll!Chaos::Collisions::ConstructLevelsetLevelsetConstraints<float,3>(Chaos::TGeometryParticleHandleImp<float,3,1> * Particle0, Chaos::TGeometryParticleHandleImp<float,3,1> * Particle1, const Chaos::FImplicitObject * Implicit0, const Chaos::FImplicitObject * Implicit1, const Chaos::TRigidTransform<float,3> & Transform0, const Chaos::TRigidTransform<float,3> & Transform1, const float CullDistance, Chaos::FCollisionConstraintsArray & NewConstraints) Line 1868 C++ Symbols loaded.
 UE4Editor-Chaos.dll!Chaos::Collisions::ConstructConstraintsImpl<float,3>(Chaos::TGeometryParticleHandleImp<float,3,1> * Particle0, Chaos::TGeometryParticleHandleImp<float,3,1> * Particle1, const Chaos::FImplicitObject * Implicit0, const Chaos::FImplicitObject * Implicit1, const Chaos::TRigidTransform<float,3> & Transform0, const Chaos::TRigidTransform<float,3> & Transform1, const float CullDistance, const Chaos::FCollisionContext & Context, Chaos::FCollisionConstraintsArray & NewConstraints) Line 2218 C++ Symbols loaded.
 UE4Editor-Chaos.dll!Chaos::Collisions::ConstructConstraints<float,3>(Chaos::TGeometryParticleHandleImp<float,3,1> * Particle0, Chaos::TGeometryParticleHandleImp<float,3,1> * Particle1, const Chaos::FImplicitObject * Implicit0, const Chaos::FImplicitObject * Implicit1, const Chaos::TRigidTransform<float,3> & Transform0, const Chaos::TRigidTransform<float,3> & Transform1, const float CullDistance, const Chaos::FCollisionContext & Context, Chaos::FCollisionConstraintsArray & NewConstraints) Line 2521 C++ Symbols loaded.
 UE4Editor-Chaos.dll!Chaos::Collisions::ConstructConstraints<float,3>(Chaos::TGeometryParticleHandleImp<float,3,1> * Particle0, Chaos::TGeometryParticleHandleImp<float,3,1> * Particle1, const Chaos::FImplicitObject * Implicit0, const Chaos::FImplicitObject * Implicit1, const Chaos::TRigidTransform<float,3> & Transform0, const Chaos::TRigidTransform<float,3> & Transform1, const float CullDistance, const Chaos::FCollisionContext & Context, Chaos::FCollisionConstraintsArray & NewConstraints) Line 2522 C++ Symbols loaded.
 UE4Editor-Chaos.dll!Chaos::FNarrowPhase::GenerateCollisions(Chaos::FCollisionConstraintsArray & NewConstraints, float Dt, Chaos::TGeometryParticleHandleImp<float,3,1> * Particle0, Chaos::TGeometryParticleHandleImp<float,3,1> * Particle1, const float CullDistance, Chaos::CollisionStats::FStatData & StatData) Line 55 C++ Symbols loaded.
 UE4Editor-Chaos.dll!Chaos::FSpatialAccelerationBroadPhase::ProduceParticleOverlaps<Chaos::TSpatialAccelerationCollection<Chaos::TAABBTree<Chaos::TAccelerationStructureHandle<float,3>,Chaos::TAABBTreeLeafArray<Chaos::TAccelerationStructureHandle<float,3>,float,1>,float,1>,Chaos::TBoundingVolume<Chaos::TAccelerationStructureHandle<float,3>,float,3>,Chaos::TAABBTree<Chaos::TAccelerationStructureHandle<float,3>,Chaos::TBoundingVolume<Chaos::TAccelerationStructureHandle<float,3>,float,3>,float,1>>>(float Dt, Chaos::TPBDRigidParticleHandleImp<float,3,0> & Particle1, const Chaos::TSpatialAccelerationCollection<Chaos::TAABBTree<Chaos::TAccelerationStructureHandle<float,3>,Chaos::TAABBTreeLeafArray<Chaos::TAccelerationStructureHandle<float,3>,float,1>,float,1>,Chaos::TBoundingVolume<Chaos::TAccelerationStructureHandle<float,3>,float,3>,Chaos::TAABBTree<Chaos::TAccelerationStructureHandle<float,3>,Chaos::TBoundingVolume<Chaos::TAccelerationStructureHandle<float,3>,float,3>,float,1>> & InSpatialAcceleration, Chaos::FNarrowPhase & NarrowPhase, Chaos::FAsyncCollisionReceiver & Receiver, Chaos::CollisionStats::FStatData & StatData) Line 244 C++ Symbols loaded.
 [Inline Frame] UE4Editor-Chaos.dll!Chaos::FSpatialAccelerationBroadPhase::ProduceOverlaps::__l2::<lambda_e8bd941b3e2231ff2bb06c7245c40685>::operator()(Chaos::TPBDRigidParticleHandleImp<float,3,0> &) Line 127 C++ Symbols loaded.
 UE4Editor-Chaos.dll!Chaos::ParticleViewParallelForImp::__l10::<lambda>(const int HandleIdx) Line 647 C++ Symbols loaded.
 [Inline Frame] UE4Editor-Chaos.dll!UE4Function_Private::TFunctionRefBase<UE4Function_Private::FFunctionRefStoragePolicy,void __cdecl(int)>::operator()(int <Params_0>) Line 676 C++ Symbols loaded.
 [Inline Frame] UE4Editor-Chaos.dll!ParallelForImpl::TParallelForData<TFunctionRef<void __cdecl(int)>>::Process(int) Line 171 C++ Symbols loaded.
 UE4Editor-Chaos.dll!ParallelForImpl::ParallelForInternal<TFunctionRef<void __cdecl(int)>>(int Num, TFunctionRef<void __cdecl(int)> Body, EParallelForFlags Flags) Line 215 C++ Symbols loaded.
 [Inline Frame] UE4Editor-Chaos.dll!ParallelFor(int) Line 339 C++ Symbols loaded.
 UE4Editor-Chaos.dll!Chaos::ParticleViewParallelForImp<Chaos::TParticleView<Chaos::TPBDRigidParticles<float,3>>,<lambda_e8bd941b3e2231ff2bb06c7245c40685>>(const Chaos::TParticleView<Chaos::TPBDRigidParticles<float,3>> & Particles, const Chaos::FSpatialAccelerationBroadPhase::ProduceOverlaps::__l2::<lambda_e8bd941b3e2231ff2bb06c7245c40685> & Func) Line 639 C++ Symbols loaded.
 [Inline Frame] UE4Editor-Chaos.dll!Chaos::ParticlesParallelForImp(const Chaos::TParticleView<Chaos::TPBDRigidParticles<float,3>> &) Line 59 C++ Symbols loaded.
 UE4Editor-Chaos.dll!Chaos::ParticlesParallelFor<Chaos::TParticleView<Chaos::TPBDRigidParticles<float,3>>,<lambda_e8bd941b3e2231ff2bb06c7245c40685>>(const Chaos::TParticleView<Chaos::TPBDRigidParticles<float,3>> & Particles, const Chaos::FSpatialAccelerationBroadPhase::ProduceOverlaps::__l2::<lambda_e8bd941b3e2231ff2bb06c7245c40685> & Func, bool bForceSingleThreaded) Line 94 C++ Symbols loaded.
 [Inline Frame] UE4Editor-Chaos.dll!Chaos::TParticleView<Chaos::TPBDRigidParticles<float,3>>::ParallelFor(const Chaos::FSpatialAccelerationBroadPhase::ProduceOverlaps::__l2::<lambda_e8bd941b3e2231ff2bb06c7245c40685> &) Line 579 C++ Symbols loaded.
 [Inline Frame] UE4Editor-Chaos.dll!Chaos::FSpatialAccelerationBroadPhase::ProduceOverlaps(float Dt, const Chaos::TSpatialAccelerationCollection<Chaos::TAABBTree<Chaos::TAccelerationStructureHandle<float,3>,Chaos::TAABBTreeLeafArray<Chaos::TAccelerationStructureHandle<float,3>,float,1>,float,1>,Chaos::TBoundingVolume<Chaos::TAccelerationStructureHandle<float,3>,float,3>,Chaos::TAABBTree<Chaos::TAccelerationStructureHandle<float,3>,Chaos::TBoundingVolume<Chaos::TAccelerationStructureHandle<float,3>,float,3>,float,1>> &) Line 124 C++ Symbols loaded.
 [Inline Frame] UE4Editor-Chaos.dll!Chaos::PBDComputeConstraintsLowLevel_Helper(float) Line 301 C++ Symbols loaded.
 UE4Editor-Chaos.dll!Chaos::TSpatialAccelerationCollection<Chaos::TAABBTree<Chaos::TAccelerationStructureHandle<float,3>,Chaos::TAABBTreeLeafArray<Chaos::TAccelerationStructureHandle<float,3>,float,1>,float,1>,Chaos::TBoundingVolume<Chaos::TAccelerationStructureHandle<float,3>,float,3>,Chaos::TAABBTree<Chaos::TAccelerationStructureHandle<float,3>,Chaos::TBoundingVolume<Chaos::TAccelerationStructureHandle<float,3>,float,3>,float,1>>::PBDComputeConstraintsLowLevel(float Dt, Chaos::FSpatialAccelerationBroadPhase & BroadPhase, Chaos::FNarrowPhase & NarrowPhase, Chaos::FAsyncCollisionReceiver & Receiver, Chaos::CollisionStats::FStatData & StatData) Line 493 C++ Symbols loaded.
 UE4Editor-Chaos.dll!Chaos::FSpatialAccelerationBroadPhase::ProduceOverlaps(float Dt, Chaos::FNarrowPhase & NarrowPhase, Chaos::FAsyncCollisionReceiver & Receiver, Chaos::CollisionStats::FStatData & StatData) Line 107 C++ Symbols loaded.
 UE4Editor-Chaos.dll!Chaos::TCollisionDetector<Chaos::FSpatialAccelerationBroadPhase,Chaos::FNarrowPhase,Chaos::FAsyncCollisionReceiver,Chaos::TPBDCollisionConstraints<float,3>>::DetectCollisions(const float Dt, Chaos::CollisionStats::FStatData & StatData) Line 61 C++ Symbols loaded.
 UE4Editor-Chaos.dll!Chaos::FPBDRigidsEvolutionGBF::AdvanceOneTimeStep(const float Dt, const float StepFraction) Line 297 C++ Symbols loaded.
 UE4Editor-ChaosSolvers.dll!Chaos::AdvanceOneTimeStepTask::DoWork() Line 136 C++ Symbols loaded.
 UE4Editor-ChaosSolvers.dll!Chaos::FPBDRigidsSolver::AdvanceSolverBy(float DeltaTime) Line 558 C++ Symbols loaded.
 UE4Editor-ChaosSolvers.dll!FPhysicsSolverAdvanceTask::StepSolver(Chaos::FPBDRigidsSolver * InSolver, float InDt) Line 219 C++ Symbols loaded.
 UE4Editor-ChaosSolvers.dll!FPhysicsSolverAdvanceTask::DoTask(ENamedThreads::Type CurrentThread, const TRefCountPtr<FGraphEvent> & MyCompletionGraphEvent) Line 190 C++ Symbols loaded.
 UE4Editor-ChaosSolvers.dll!TGraphTask<FPhysicsSolverAdvanceTask>::ExecuteTask(TArray<FBaseGraphTask *,TSizedDefaultAllocator<32>> & NewTasks, ENamedThreads::Type CurrentThread) Line 849 C++ Symbols loaded.
 [Inline Frame] UE4Editor-Core.dll!FBaseGraphTask::Execute(TArray<FBaseGraphTask *,TSizedDefaultAllocator<32>> & CurrentThread, ENamedThreads::Type) Line 516 C++ Symbols loaded.
 UE4Editor-Core.dll!FTaskThreadAnyThread::ProcessTasks() Line 1039 C++ Symbols loaded.
 UE4Editor-Core.dll!FTaskThreadAnyThread::ProcessTasksUntilQuit(int QueueIndex) Line 863 C++ Symbols loaded.
 [Inline Frame] UE4Editor-Core.dll!FTaskThreadBase::Run() Line 528 C++ Symbols loaded.
 UE4Editor-Core.dll!FTaskThreadAnyThread::Run() Line 940 C++ Symbols loaded.
 UE4Editor-Core.dll!FRunnableThreadWin::Run() Line 86 C++ Symbols loaded.
 UE4Editor-Core.dll!FRunnableThreadWin::GuardedRun() Line 27 C++ Symbols loaded.

Community References

i have this problem UE4CC-Windows-58DC12AF4B97F057BD108FBFF569B2E9_0000

Fix UE-51650

I am not able to find world outliner how to enable it?

Delay nodes occasionally don't fire the "Completed" output in a nativized build

How can i modify the param name in EQS node

Undefined sysmbol: typeinfo for AActor when cross-compile linux dedicated server on windows

Bonjour j'ai un petit problème c'est que je ne vois plus l'onglet "scability" pour changer les graphismes de uefn et j'ai pas trouvé l'option pour le faire revenir ?

How to achieve HLSL Multiple Render Target in Material blueprints?

What method is used to fill polygonal regions when drawing spline mesh at run time?

After I install the program,I open it,but it crashes.And sometimes it turns to the missing of the globalshader...SM4.bin

Have Comments or More Details?

There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-95896 in the post.

1	Login to Vote

Fixed

Component	UE - Simulation - Physics
Affects Versions	4.25
Target Fix	4.26

Fix Commit	14437097
Release Commit	14437097

Created	Jul 27, 2020
Resolved	Oct 7, 2020
Updated	Apr 28, 2021

View Jira Issue

UE-95896

Assertion failed: Engine crushes when a geometry collection hits a landscape

Assertion failed: Engine crushes when a geometry collection hits a landscape

Have Comments or More Details?