Unreal Engine Issues
Unreal Engine Issues
Severe ghosting on animated objects when camera stops moving in sequences when using path tracer
UE - Graphics Features - Lumen - Aug 2, 2019Pixels seem to stop updating in the path tracer when a camera stops moving in sequence. Old color values from objects that have moved seem to still affect pixels they should not. ...
Cannot Preview a Node in a UI Material
UE - Rendering Architecture - Materials - Mar 18, 2016Previewing 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, 2019Instead 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, 2017Web browser widget appears washed out ...
Repaired painted vertex warnings in ElementalDemo
Docs - Samples - Aug 17, 2016Warning 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, 2015Depth 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, 201516 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, 2017https://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, 2015When 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 ...
Sequence thumbnails save with visual issues
UE - Anim - Sequencer - Aug 1, 2025[Link Removed] When camera tracks are activated, saving the sequencer results in captured anomalies: 1. Incorrect aspect ratio 2. Additional post-processing effects such as lens flare appear 3. ...