Incorrect behavior from RotateAboutAxis material node

UE - Graphics Features - Feb 24, 2017

Looks like the axis creation may be failing in some cases causing the rotation to generate a bad result. ...

Significant Frame Rate Decrease in Editor UI on Monitors with G-Sync Enabled

UE - Graphics Features - Feb 24, 2017

A G-Sync enabled monitor running @100Hz will drop from 100FPS while working in the Viewport to 50FPS when scrolling through the Editor Menu window. A G-Sync enabled monitor running @60Hz will drop f ...

Editor Crashes On Startup After Enabling Light Propagation Volume (LPV) With Forward Shading

UE - Graphics Features - Feb 20, 2017

After enabling Forward Shading that project can no longer operate while "r.LightPropagationVolume = 1" since it will crash immediately. ...

Particle Cutout Will Clip Texture On Certain Frames Even With Alpha Threshold of 0.0001

UE - Niagara - Feb 17, 2017

A licensee has reported that the particle cutout feature will sometimes clip the image on some frames despite having an alpha threshold of 0.0001 The attached project has an example of this on the ...

Crash occurs when using the VisRT console command in a project launched without the Editor using D3D12

UE - Graphics Features - Feb 6, 2017

Launching a project outside of the Editor (-game) using D3D12 (-d3d12) results in a crash if the console command VisRT is used in the project. ...

Instanced Hierarchical Static Mesh Screen Size Does Not Account For Scale

UE - Graphics Features - Jan 30, 2017

Instanced Hierarchical Static Meshes do not account for scale when picking LODs based off screen size. This is apparent when you have large variation of scale sizes between the same mesh. ...

Editor Crash when Add Client button is used

Tools - Jan 30, 2017

If the "Allow late joining" option is turned on in Editor Preferences, using the Add Client button in PIE will cause a crash on Exit. Crash happens immediately if using VR Preview ...

(global distance field not available in shadow pass) Lighting Artifacts Appear When Using Distance To Nearest Surface With World Position Offset

UE - Graphics Features - Jan 20, 2017

When using "distance to nearest surface" node with WPO there are cases where the engine will shade the object incorrect. The attached project reproduces one of these scenarios. It appears as though ...

Mouse control is not obtained when clicking on a game's title bar from another app

Tools - Jan 18, 2017

A licensee has reported that gaining focus of a UE4 game window by clicking the window's title bar results in the game only receiving keyboard input and no mouse input until you also click in the ga ...

Subsurface Profile - Full resolution skin shading blows out results from ambient cubemap

UE - Graphics Features - Jan 12, 2017

Since the change to Subsurface Profile shader in 4.14 their use with ambient cubemaps have started giving blown out results that come back either white or very desaturated in the viewport. The curre ...