[Feature Request] Niagara Ribbon Render needs V direction Tessellation option

UE - Rendering - Niagara - Aug 8, 2021

It has a common chunking visual artifacts that lot's of triangular Translucent overlap once Ribbon's width is big and twisted heavily facing to Camera [Image Removed] It can be fixed by adding mor ...

Shader compilation failure crash with DX12, Tesselation, Distance fields, Instanced Stereo, and Hierarchical LOD Coloration viewmode

UE - Rendering - Aug 5, 2021

upd. Regression was checked on //UE4/Release-4.26 CL 15973114, issue wasn't reproduced. Regression - YES Shader compilation failure crash with DX12, Tesselation, Instanced Stereo, and Hierarchical ...

Base material does not report broken logic with disconnected nodes, but instances of the same material do.

UE - Rendering - Aug 5, 2021

This is likely "by design", but the licensee is requesting a warning in base materials for disconnected logic that does not work, which they are reporting as a nuisance during development. Instance ...

Crash in FLandscapeRenderSystem on Mobile

UE - LD & Art - World Building - Landscape - Aug 4, 2021

Similar issues have already been reported here for iOS [https://udn.unrealengine.com/s/question/0D52L00004vJelTSAS/crash-ios-in-flandscaperendersystemcomputesectionperviewparameters] and here [https ...

If Material is not overridden, Material will not be exported correctly.

Tools - Editor - Datasmith Exporters - Aug 4, 2021

This is because FFbxExporter::ExportStaticMeshToFbx() does not correctly determine the OverrideMaterials.  Therefore, the following code will not pass.else { Material = StaticMesh->GetMaterial(P ...

Background blur missing with HDR CompositeMode 1

UE - Rendering - Jul 29, 2021

UPD: According to Affects Version field, issue reproduces in 4.26, Regression for 4.27 - No. ...

Movie Render Queue does not render letterboxes to exports with sensor aspect ratios between 16:9 and 1:1

UE - Anim - Sequencer - Jul 28, 2021

There is a discrepancy between how Movie Scene Capture (Legacy) and Movie Render Queue handle letterboxing for sensor aspect ratio's that do not match the export resolution, which seems to be a bug ...