FBatchedElements::Draw - OrthoZoomFactor can be reset to 1.0f if Line.bScreenSpace is ever false

UE - Graphics Features - Feb 20, 2017

A licensee has reported that the Draw function in BatchedElements.cpp can set the OrthoZoomFactor (not a local variable) to 1.0f if Line.bScreenSpace is ever found to be false. The line this can oc ...

PDI-DrawPoint - Zoomfactor being calculated incorrectly

UE - Graphics Features - Feb 20, 2017

A licensee has reported that the ZoomFactor variable inside of the DrawPoint function is being calculated incorrectly. It currently is calculated using the lesser of the projection matrix's horizont ...

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. ...

Unable To Add More Than One Element To Default Values For Maps In Blueprint

UE - Gameplay - Blueprint - Feb 13, 2017

When adding new elements to a Map in blueprints it will return the error "Cannot add a new key to the map while a key with the default value exists". This is because it currently won't increment the ...

Odd rendering in editor when resize windows

Tools - Feb 9, 2017

REGRESSION No When resizing editor windows, the user can see odd rendering around that window. It renders white and it takes a moment to catch up to match the user resizing it. This was seen with ...

Cascade Previewer Has Strange Behavior With Particles With Source Movement Module

UE - Graphics Features - Feb 7, 2017

Particles that use source movement will start shooting out violently while in the cascade preview window. You need to have the movement option checked under the view settings. If you also check the ...

Editor windows that contain viewports cause large framerate loss

UE - Graphics Features - Feb 7, 2017

When editor windows are opened that contain a viewport of some sort, the framerate of the engine drops drastically. Examples include the Blueprint Editor, Material Editor, and Persona. The viewport ...

Sorting Issue With Many Overlapping GPU Paricles

UE - Graphics Features - Feb 6, 2017

GPU particles have a strange sorting priority once a significant amount of overlap starts happening. Changing the sort mode doesn't influence this effect at all. While on CPU particles changing the ...

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 ...

Numpad +/- will zoom in blueprints when typing in a node on Linux

UE - Editor - UI Systems - Slate - Jan 26, 2017

When entering text into a node such as Print String, pressing +/- on the numpad will zoom the blueprint in and out. This does not occur on Windows or Mac. ...