Cannot Preview a Node in a UI Material

UE - Rendering Architecture - Materials - Mar 18, 2016

Previewing a Node in a UI Material will not show anything, or will remain showing what is placed in Final Color. This issue appears to be fixed in Dev-Main as of CL-2914624. ...

Ray Traced Reflections Get Darker The Higher The Rougness Value is for Metallic Materials

UE - Graphics Features - Lumen - Jun 11, 2019

Instead of reflecting an average color of the surrounding, reflections become black with increased roughness values. Found in 4.22 CL# 6574378 and 4.23 CL# 6925347 ...

Web browser widget appears washed out

UE - Editor - UI Systems - Oct 2, 2017

Web browser widget appears washed out ...

Repaired painted vertex warnings in ElementalDemo

Docs - Samples - Aug 17, 2016

Warning is as follows: Warning Spent 0.5s repairing painted vertex colors due to static mesh re-imports! This will happen every load until the maps are resaved. ...

Translucent Materials do not work well with Depth of Field

UE - Graphics Features - Apr 10, 2015

Depth of Field do not work well when using a translucent material, even if the material has no opacity set. Image attached as reference. Light brown colored mesh is translucentGray mesh is opaque ...

16 bit PNG Texture rendering incorrectly in Material and UMG

UE - Graphics Features - May 11, 2015

16 bit PNGs are not rendering the correct color information, appear to be gamma corrected unnecessarily compared to an 8 bit version of the same texture. Also Reproduced in Main Promotable-CL-25450 ...

DFAO on Landscape causes outline against horizon

UE - Graphics Features - Apr 21, 2017

https://udn.unrealengine.com/questions/359241/is-it-possible-to-turn-off-distance-field-ambient.html DFAO creates a horizon outline at great distances against lighter colored skies. [Link Removed ...

Precomputed AO Masks cannot be used to LERP between Normal Maps

UE - Graphics Features - Sep 18, 2015

When using the Precomputed AO Map node to LERP between 2 Normals, only the A input into LERP will render out on the mesh. The Precomputed AO will work fine for Base Color LERPs Example: [Image Re ...

EXR format image files appear dark in texture editor with HDRCompressed setting

UE - Editor - Content Pipeline - Import and Export - Aug 30, 2017

Imported textures in exr image file formats preview darker in HDRCompressed versus HDR in the texture editor. [Link Removed] [Link Removed] They seem to look the same in a simple material using l ...

Making magenta noise in Emissive Map when creating proxy mesh

UE - Graphics Features - Nov 26, 2018

Since magenta is a special color used for initialization of the UE4 and it may have occurred problem because we are performing a branch using equal.[Link Removed][Link Removed] Licensee wants to us ...