Material Editor: Material Expression Constant Node Preview Incorrect Color

UE - Rendering Architecture - Materials - Jun 4, 2020

Users can create multiple tracks for the same parameter in sequencer

UE - Anim - Sequencer - Oct 25, 2016

Users can create multiple tracks for the same parameter in sequencer. In the case of changing a spotlight color the change in color results in a new track being created ...

Landscape Spline meshes lose vertex color paint after moving to another level

UE - Graphics Tools - Terrain - Landscape - May 11, 2018

UDN: https://udn.unrealengine.com/questions/432735/%E5%9C%A8%E6%B5%81%E5%85%B3%E5%8D%A1%E4%B8%AD%E6%8F%8F%E7%94%BB%E6%A0%B7%E6%9D%A1%E6%9B%B2%E7%BA%BF%E4%B9%8B%E5%90%8E%E5%A6%82%E6%9E%9C%E6%8A%8A%E ...

Lumen generates gradated shading even if the light is a constant color sky light

UE - Graphics Features - Lumen - Jul 22, 2022

Lumen generates a gradated shading even if objects are lit by a 360-degree constant sky light.[Link Removed][Link Removed] I looked into this and found that this comes from Spherical Harmonics int ...

GAS: GameplayAttribute picker incorrectly also lists AttributeSets' non-attribute properties

UE - Gameplay - Gameplay Ability System - Aug 21, 2025

Context: FGameplayAttribute's details customization lets designers pick any attribute property from any UAttributeSet class. Problem: This currently displays all properties of UAttributeSet class ...

Circular Throbber does not appear to be affected when setting the tint

UE - Editor - UI Systems - Jan 25, 2016

Circular throbber does not appear to change colors when changing the tint ...

Scene color is copied every draw call if materials read from it (redundant copy optimization is broken)

UE - Graphics Features - Aug 31, 2016

See TranslucentRendering.cpp // todo: this optimization is currently broken DrawingContext.bSceneColorCopyIsUpToDate = (DrawingContext.TranslucenyPassType == ETranslucencyPass::TPT_Separat ...

Emissive Input required for Landscape Painting to Appear Correctly when using Emissive Color and Make Material Attributes property Enabled

UE - LD & Modeling - Terrain - Landscape - May 1, 2017

When using the Make Material Attributes and landscape layer blends, if an Emissive input is being utilized on any one layer, the other layers must also utilize the emissive input in order for it to ...

YCoCg to sRGB?

UE - Niagara - Rendering - Mar 20, 2024

Both the material and the Niagara compute shader use the same function to interpret the YCoCg color data, but the Niagara compute shader returns an incorrect color. Also found on CL: 32347737 in Re ...