Unreal Engine Issues
Unreal Engine Issues
Unable to Import Alembic Files in UE4
UE - Editor - Content Pipeline - Import and Export - Feb 25, 2020We have written a plugin for UE4 that allows Unreal users to import and set up Megascans assets into Unreal Engine. Recently we added Alembic files to our assets and also updated all our plugins to ...
Distance Cull Fade Node on Material does not work with Skeletal Mesh
UE - Rendering Architecture - Materials - Apr 22, 2022The licensee reports that this issue is caused by the following code not performing a Buffer update. .\Engine\Source\Runtime\Renderer\Private\ShaderBaseClasses.cpp void FMeshMaterialShaderElementD ...
Regular UMG Widgets can be reparented to editor widgets but do not work.
Tools - May 11, 2020This may just need to be closed, we may not be able to control this at such a level. This really comes up more than you would guess. I think almost everyone has made a widget, wanted to call Edito ...
CopyTask in BuildGraph never throws an exception if the copy fails
UE - Foundation - Horde - BuildGraph - Feb 28, 2023CopyFile function in CommandUtils.cs assumes that an exception will be thrown if the number of retries is exceeded, but the loop condition prevents it from being thrown. Following fix works:publics ...
Screenspace Denoiser creates artifacts for Ray Traced Shadows
UE - Graphics Features - Ray Tracing - Nov 13, 2023Screen space denoiser creates two types of artifacts: artifacts around boundary for general lighting The artifact is there before 5.2 but since the ray traced shadow denoiser denoises on the sqr() s ...
Skeletal Mesh component that uses Anim BP does not translate after swapping root bone on particular Anim section in Sequencer
UE - Anim - Anim in Engine - Apr 19, 2023Repro Rate: 5/5 Regression: Unconfirmed - Functionality is not implemented in previous version Skeletal Mesh with default slot Anim BP applied does not translate after Swap Root Bone on particular ...
Crash on Linux and Windows with Vulkan when adding Atmospheric Fog to a Level
UE - Graphics Features - Dec 5, 2018Adding an instance of Atmospheric Fog to a Level causes the Editor to crash on both Linux and Windows when using Vulkan. There is a different callstack when SteamVR is enabled on Linux which is also ...
High Res Screenshot Tool Scene Color rendering washed out as EXR
UE - Graphics Features - Dec 8, 2015When rendering out the Buffer Visualization Targets with the HDR setting on, the resulting Scene Color EXR is rendering significantly washed out compared to the Buffer Viz. in the Editor and if comp ...
Add sanitization code surrounding RigidBody + RigidBodyDynamic flags
UE - Simulation - Physics - Jul 20, 2016PhysX throws warnings (which are escalated to errors) when CCD and Kinematic are in invalid states (they can only be enabled exclusively). The code to fix this has already been submitted, but may c ...
Color Picker window closes when selecting objects in the viewport with the Eye Dropper Tool
Tools - Apr 13, 2017The color picker window stays open if the Eye Dropper tool selects color from anywhere other than the viewport. The color is captured in the color picker before it closes, but makes it a nightmare t ...