Unreal Engine Issues
Unreal Engine Issues
Lack of multi-bounce when using software traced lumen radiosity
UE - Graphics Features - Lumen - Apr 4, 2025Certain Lumen Hardware Ray Tracing CVars, when disabled in isolation, will not fall back to tracing the Global Distance Field, because the Global Distance Field is still disabled. The function "Lum ...
Cursor breaks viewport when using Widget Render Transform Scale
UE - Editor - UI Systems - Mar 14, 2017The viewport cursor will continue to display off of the actual viewport until the widget ends if the border component actually extends. This has not been tested with any other template. Regression ...
Cannot set the Rotation value of an Instance Static Mesh component if the scale is set to zero
UE - Gameplay - Feb 3, 2015Cannot set the Rotation value of an Instance Static Mesh component if the scale is set to zero. This can be done with StaticMesh components and standard Static Meshes in the level. ...
Get Instances Overlapping Box node does not pick up overlapped instances
UE - World Creation - Worldbuilding Tools - Foliage - Aug 9, 2016Get Instances Overlapping Box node does not recognize instanced meshes overlapping the box. The bounds of the box make no difference, nor does having the box test for instances within the same bluep ...
Creating TArray of components does not allow component elements to be edited in blueprints
UE - Gameplay - Blueprint - Mar 8, 2016When an array is used to declare actor components, the component elements that make up the array cannot be edited inside blueprints. ...
GPU Crash from invalid SRV in CreateShaderResourceView due to integer underflow
UE - Graphics Features - Ray Tracing - Jan 13, 2025The GPU crashes after the ray tracing geometry builder attempts to create a shader resource view with an invalid offset. ...
GPU Crash from invalid SRV in CreateShaderResourceView due to integer underflow
UE - Graphics Features - Ray Tracing - Jan 15, 2025The GPU crashes after the ray tracing geometry builder attempts to create a shader resource view with an invalid offset. ...
Components added through blueprints behave differently than components added in the level
UE - Gameplay - Blueprint - Jan 18, 2016Adding a component directly to a blueprint does not behave the same as a component added directly to a class/BP instance. Example: Calling AddRelativeRotation() on a mesh that is added directly to ...
Low acceleration changes causes the object's velocity to nearly zero out.
UE - Simulation - Physics - Apr 20, 2022Low 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 ...
Matinee movie recording is broken in 4.10
Tools - Dec 18, 2015When trying to record a movie from a matinee in 4.10, it can fail for a number of reasons: 1. The folder does not exist 2. The cinematic view modes do not take effect 3. Trying to record a streamin ...