With "Use Default Sample Rate" disabled, animations with 24fps get resampled to 30fps

Tools - May 30, 2017

With "Use Default Sample Rate" disabled, animations under 30fps get resampled to 30fps ...

A static mesh far from the origin appears to wobble in PIE

UE - Rendering Architecture - Aug 3, 2023

It seems that the numbers are rounded in VertexFactoryCommon shader. The cube consists of vertices that are very far from the origin and are placed on the screen by placing them at coordinates that ...

NumNonClothingSections logic is bad

UE - Editor - Content Pipeline - Datasmith - Jul 26, 2019

We use the NumNonClothing section number to iterate in the sections, this is an error if the cloth sections are not at the end of the sections array. See the following picture of a search on NumNonC ...

Self-Shadowing changes when click on and off an actor

UE - Graphics Features - Jun 19, 2015

Given a Movable Light with a Movable Mesh with enabled Self Shadow Only, the mesh will not cast inset shadows (despite this option begin forced to true according to Tooltip) unless the mesh is selec ...

Export Asset Task with Directory as Filename causes Editor Crash

UE - Editor - Content Pipeline - Jan 8, 2024

Morph Target Normals behaving strangely when deforming

UE - Editor - Content Pipeline - Import and Export - Aug 10, 2015

Morph Target Normals not importing as expected when Normals are locked User's morph targets are creating strange normals when the normals are locked in Maya upon export Cannot find suitable workar ...

Cannot import multiple assets to content browser at once on Linux

UE - Platform - Linux - Apr 9, 2015

When importing assets in the content browser only one asset can be selected at a time. Ctrl+LMB does not select more than one asset. Shift+LMB does not select a group of assets. ...

Texture padded to Power of Two do not render on iOS

UE - Platform - Mobile - Feb 2, 2017

Textures that have been padded to Power of Two (using the Power of Two Mode in the Texture Editor) do not render on iOS. In the repro provided, QAGame has a mobile interface that uses 100x100 textu ...

Performance decreases with the number of morph targets

UE - Anim - Rigging - Jun 15, 2023

Performance decreases quite a bit on characters with large number of morph targets, as soon as even one target is active.  ...

Animations imported with Skeletal Mesh are not marked as dirty and don't get saved

UE - Editor - Content Pipeline - Import and Export - Jun 21, 2016

Animations imported with Skeletal Mesh are not marked as dirty and don't get saved. They disappear when the editor is restarted. This does not occur in 4.11 or 4.13. ...