GPU Crash from invalid SRV in CreateShaderResourceView due to integer underflow

UE - Graphics Features - Ray Tracing - Jan 15, 2025

The GPU crashes after the ray tracing geometry builder attempts to create a shader resource view with an invalid offset. ...

Low acceleration changes causes the object's velocity to nearly zero out.

UE - Simulation - Physics - Apr 20, 2022

Low acceleration changes causes the object's velocity to nearly zero out. The range this seems to occur at for the Acceleration change is between the values of zero and approximately thirty. Repro ...

LIVE: Code projects using TextureRenderTarget2D will not build because UTextureRenderTarget is undefined in TextureRenderTarget2D

UE - Foundation - Core - Nov 5, 2014

If a TextureRenderTarget2D is used in a code class, the build of the project will fail with an error stating that the UTextureRenderTarget base class is undefined. The line #include "Engine/TextureR ...

Images Rendered out by Movie Render Queue has much more visible Banding issue in gradient

UE - Virtual Production - Rendering - Color - Aug 21, 2021

I did some experiment locally. At very first I thought it's the image compression issue, since the issue is also obvious while rendered out images as JPG and PNG, there's no image compression qualit ...

Adding a Scene Capture 2D to Render Target will override Motion Blur settings in level

UE - Graphics Features - Nov 24, 2014

With a Render Target From Scene Capture 2D setup in a level , the motion blur settings from a global post process volume is overridden. Was investigating Scene Captures picking up Motion Blur when ...

GAMEPLAYATTRIBUTE_REPNOTIFY does not properly propagate OldValue

UE - Gameplay - Dec 10, 2021

Associated UDN [Link Removed] We've been having some issues with the replication of attributes. Namely we have an OnRep_ function for an attribute that receives FGameplayAttributeData& OldValue a ...

RewindDebugger draws debug capsules with its base location as center

UE - Anim - Oct 31, 2024

Context UE_VLOG macros can be used to capture debug shapes into both a Visual Logger recording and a Rewind Debugger recording. Problem In the Rewind Debugger, the capsule shapes are drawn at an in ...

Bindless Textures do not mip stream as expected

UE - Rendering Architecture - RHI - Jan 29, 2025

Bindless textures do not appear to stream mip levels. This issue is separate from an already reported bindless virtual texture streaming issue. When the editor is freshly launched or when mip level ...

DefaultToSelf on a TScriptInterface parameter does not default correctly

UE - Gameplay - Blueprint - Aug 31, 2020

This issue seems to stem from the incorrect constructor being called for TScriptInterface, so the correct Interface pointer does not get called. If you explicitly connect a reference to "Self" to ...

The constructor for the FWheelSetup struct in WheeledVehicleMovementComponent is in the .cpp file instead of the .h which can prevent projects from building if they contain a custom class deriving from WheeledVehicleMovementComponent.

UE - Simulation - Physics - Nov 19, 2014

When a code class deriving from WheeledVehicleMovementComponent is created in a Vehicle Advanced template project, the user is required to include a constructor for the FWheelSetup struct in Wheeled ...