Path Tracing shadow artifacts

UE - Graphics Features - Path Tracer - May 31, 2023

First picture lit is used [Image Removed] Second picture PT is used, this occurs under certain angles of incidence. [Image Removed] ...

Shader Crash with Nanite in UE::RHICore::ValidateStaticUniformBuffer

UE - Rendering Architecture - Jun 1, 2023

This appears to be a general crash when a SingleLayerWater material is assigned to a Nanite Mesh. ...

String property multiline editing not enabled for local variables in the Blueprint Editor

UE - Gameplay - Blueprint Editor - Jul 21, 2023

The multi line flag is available for class level string properties but not for local properties.  ...

Looping Gameplay Cues are not removed if GameplayCueNotifyTagCheckOnRemove is true

UE - Gameplay - Gameplay Ability System - Aug 24, 2023

GameplayCues inheriting from GameplayCueNotify_Actor no longer have their Removed functions called when removed via UAbilitySystemComponent::RemoveGameplayCue if GameplayCueNotifyTagCheckOnRemove is ...

Color shifting occurs from screen probe gather ping-pong when Lumen active

UE - Graphics Features - Lumen - Apr 29, 2024

A subtle yellow tint color shift occurs when Lumen is active due to usage of R11G11B10_Float targets, mostly from r.Lumen.ScreenProbeGather.SpatialFilterProbes where we ping-pong between R11G11B10_F ...

DumpShaderStats doesn't output any shader data

UE - Rendering Architecture - Shaders - May 1, 2024

The DumpShaderStats console command doesn't output any shader stats because the code to calculate that information in DumpShaderStats (Shader.cpp) is commented out https://github.com/EpicGames/Unrea ...

RHICoreShader ValidateStaticUniformBuffer expected shader logging is confusing

UE - Rendering Architecture - Shaders - May 9, 2024

The log output in ValidateStaticUniformBuffer, lists hashes that do not correspond to the actual shader name which makes it difficult to track down problem shaders. The current log output code is ...

Crash on stopping PIE after using DemoRec in PIE

UE - Networking - Jan 20, 2016

Crash on stopping PIE after using DemoRec in PIE. Possibly related to [Link Removed] which must be fixed, but happens upon stopping PIE. Reproduced in 4.11.0 Preview 3 binary and Main (//UE4/Dev-Ma ...

Expanding a folder in the Finder through the editor will crash the editor

UE - Platform - Apple - Mar 16, 2015

Expanding a folder in the Finder through the editor will crash the editor. Reproduced in 4.7.2 binary on 10.9.5 Crash Report: [Link Removed] ...