r.AllowOcclusionQueries 0 keeps increasing PrimitiveOcclusionHistorySet memory

UE - Rendering Architecture - RHI - Nov 29, 2022

r.AllowOcclusionQueries 0 skips the call to TrimOcclusionHistory(), so the PrimitiveOcclusionHistorySet container continues to grow. ...

TAssetPtrs are not properly fixed up in client PIE instances

Tools - Aug 18, 2015

Contrary to the linked UDN question, this doesn't seem to require the actor to be replicated. The problem is that when UWorld::DuplicateWorldForPIE is called for a PIE client instance's persistent ...

Integrate fix for improper failure case for allocation of RenderTargets in Oculus

UE - Platform - XR - Feb 6, 2017

CL 3278583 contains a fix for improper failure state allocation of render targets, which causes intermittent crashes when the HMD is unplugged or has a power interruption. This CL fixes the crash ...

FDeferredDecalProxy cannot be initialized to not fade even if FadeDuration is set to 0

UE - Rendering Architecture - May 16, 2024

FDeferredDecalProxy always fade because InitializeFadingParameters is always called and leaves InvFadeDuration at 1.0 and the LifetimeAlpha calculation in FDeferredDecalPS::SetParameters gets a very ...

Duplicating Asset With Suffix 0 Will Jump To A Suffix Of 2

Tools - Oct 28, 2016

When duplicating an asset with the suffix 0 in the content browser the duped asset will get a suffix of 2. Any other number works fine for example if you dupe an asset named "Test_23" the duped mesh ...

UAnimInstance::GetInstanceTransitionTimeElapsed returning 0 in non-editor builds

OLD - Anim - Sep 4, 2019

In non-editor builds UAnimInstance::GetInstanceTransitionTimeElapsed always returns 0.0f. This is caused within FAnimNode_StateMachine::Update_AnyThread due to: #if WITH_EDITORONLY_DATA NewTra ...

Enabling Fixed Frame Rate doesn't Lock the Frame Rate

UE - Rendering Architecture - RHI - Nov 19, 2019

When a project is set to use a fixed frame rate via the Project Settings it is uncapped when played in editor. Found in 4.24 Preview 2 CL#10091930 Reproduced in 4.25 Main CL#10298106 ...

Using a fixed frame rate will cause you to leave the loop section of Montage.

UE - Anim - Runtime - Dec 10, 2021

This problem only occurs when the fixed frame rate is 30 and the Sequence Lenngth of the loop animation is 1.66667. If turn off the fixed frame rate setting, it will behave as it should. ...

Integrate VirtualBones crash fix into next release patch

OLD - Anim - Jun 7, 2017

Athomas reached out to me with a crash he was having when trying his 'Automatic Sync Marker AnimModifier' on a Skeleton that had Virtual Bones. It was verified that this only happens when Virtual B ...

LODBias causes landscape component to stop rendering if set >0 and Forced LOD set to -1

UE - LD & Modeling - Terrain - Landscape - Sep 12, 2016

LODBias causes landscape component to stop rendering if set >0 and Forced LOD set to -1. NOTE If Forced LOD is set to 0, the component renders correctly. ...