Unreal Engine Issues
Unreal Engine Issues
Issue when turnning a character into ragdoll using PhysicsControlComp with async physics
UE - Anim - Synthesis - Jul 16, 2024When turnning a moving character into ragdoll, it freeze a bit with TickPhysicsAsync on. If we log the character's pelvis position, it seems jump backward in the first few ticks. Also, it only happ ...
Integer overflow in NaniteBuilder can lead to an editor crash on certain meshes
UE - Graphics Features - Nanite - Jul 10, 2024NaniteBuilder uses an int8 type for ExternalEdges and counts adjacency with a int32. The bug stems for the cast to int8 when adding the adjacency count into the ExternalEdges array. The precision l ...
All public inline methods of class "FBlueprintEditor" are inaccessible to other modules due to "DLLIMPORT"
UE - Framework - Blueprint Editor - Jun 28, 2024Class "FBlueprintEditor" has several inline getter methods as part of its public API (e.g. GetPreviewActor() and GetPreviewScene()). However, even though they are public, those methods are inaccessi ...
Make ConfigBranch creation thread safe
UE - CoreTech - UObject - Jun 28, 2024See [Link Removed] for details ...
Exposure compensation curves do not blend
UE - Graphics Features - Jun 26, 2024Requested in https://udn.unrealengine.com/s/question/0D5QP000006g7Px0AI/auto-exposure-various Previously discussed in https://udn.unrealengine.com/s/question/0D52L00004vKeNJSA0/blending-postproce ...
Allowed ranges for the different Exposure Settings in PPV are not consistent
UE - Graphics Features - Jun 26, 2024https://udn.unrealengine.com/s/question/0D5QP000006g7Px0AI/auto-exposure-various Caused by inconsistent usage of ClampMin/ClampMax/UIMin/UIMax in Scene.h Ranges should also be modified based on ...
In class UCancellableAsyncAction, methods IsRegistered() and ShouldBroadcastDelegates() still return true after Cancel() or SetReadyToDestroy() unregisters the object.
UE - Framework - Blueprint - Jun 26, 2024Class UBlueprintAsyncActionBase provides methods RegisterWithGameInstance() and SetReadyToDestroy(), which respectively register and unregister the object with the game instance. Derived class UCanc ...
Distant mesh / vista have visible Lumen bounces
UE - Rendering Architecture - Jun 15, 2024Objects far outside of the Lumen Scene don't temporally accumulate screen traces, leading to heavy flickering. It appears that the temporal reprojection is failing when comparing the depth in "Scree ...
Draw Invalidating Bounds debug view mode for Virtual Shadow Maps is gone in 5.4
UE - Graphics Features - Shadows - Jun 9, 2024The CVar "r.Shadow.Virtual.Cache.DrawInvalidatingBounds" referenced in the official 5.4 documentation for virtual shadow maps, no longer shows any bounds as the underlying code seem to be removed in ...
Displacement + TAA causes "vibrating"/"buzzing" artifacts
UE - Rendering Architecture - Jun 4, 2024There is a buzzing artifact on shadows that is seen in the provided test project. The problem seems to be far more subtle when VSM is turned off. Licensee mentions that turning r.Velocity.ForceOutpu ...