Post Processing Does Not Account For Screen-Percentage Quantization

Rendering - Jul 30, 2015

When changing r.ScreenPercentage the final value used for buffer generation is clamped to the nearest 4 pixels to aid in post processing and other steps. During post processing the same calculation ...

UMG materials do not correctly access material parameter collections (all of the values are black)

Tools - UMG - Jul 22, 2015

Edit MattK: The reason they do not work is that material parameter collections are updated inside of a uworld that slate doesnt have access to. We just need to figure out a way to update the necess ...

The Child Actor Component cannot be selected in the Blueprint Editor Viewport

Gameplay - Jun 8, 2015

The Child Actor Component cannot be selected in the Blueprint Editor Viewport. Selecting the Child Actor Component in the Components tab is the only way to select the component. Reproduced in 4.7.6 ...

AIPerceptionComponent's DominantSense is not being used

Gameplay - AI - May 25, 2015

It seems there's a bug in AIPerceptionComponent that results in information about dominant sense never getting processed and all derived data doesn't get set. DominantSenseID doesn't get set. ...

No selection highlight in ES2

Rendering - Dec 9, 2014

No selection highlight in ES2. Expected to be able to see what user has selected. Reproduced on windows and mac. ...

Visual glitches on Mac OS X using an Intel GPU while playing HW accelerated H264 video

Rendering - Dec 2, 2014

This looks to be a system driver bug, but logging here for transparency and future reference. It took me a long while to figure out that the key issue is a conflict during blit between UE4 and the H ...

Projects created outside root UE4 folder do not show up in Project Browser on Linux

Platform - Linux - Nov 25, 2014

If a user creates a new project on a Linux machine and specifies the project to be created in a folder outside of the root UE4 directory and /Documents/Unreal Projects/ folder, the project does not ...

LIVE: BLUEPRINT: Compiling a parent blueprint of a child blueprint causes reference error in output log

Gameplay - Blueprint - Oct 16, 2014

When a user compiles a parent blueprint, this error appears in the outpug log for the child blueprint: Warning: USimpleConstructionScript::FixupRootNodeParentReferences() - Couldn't find inherited ...

LIVE: EDITOR: FBX: Combined Meshes Flag does not work when importing multiple LODs in a single FBX

Tools - Import - Oct 10, 2014

BRANCH: MAIN CHANGELIST: 2322258 PLATFORM: Windows DESCRIPTION: When importing a mesh into the editor if there are multiple LOD setup meshes in a single FBX they will not import as a single asset w ...