Unreal Engine Issues
Unreal Engine Issues
Duplicated Parameters in a MPC cannot be used always return source results
UE - Rendering Architecture - Materials - Jun 15, 2015When you duplicate a Parameter in a Material Parameter Collection instead of adding a new Parameter, the duplicated parameter always returns the same results as the source no matter the value entere ...
shadow seam occurs when lighting is built after object is rotated
UE - Graphics Features - Jul 12, 2017There is an issue that is occurring where visible shadow seams appear after an object is rotated where it was not previously. CL tested 4.15.3 - CL 3450819 - Issue is present 4.16.2 - CL 3514769 - ...
Modifying Override Parameters on NiagaraActor blueprints created from a System Actor does not work
UE - Niagara - Cinematics - Aug 5, 2020Modifying Override Parameters on NiagaraActor blueprints created from a System Actor does not work The System component appears to only use the default value set in the System. This issue does no ...
Event Tick is not running once packaged
UE - Gameplay - Components - Jul 20, 2015Event Tick works when it's running on Windows however once it's packaged or even launched onto all platforms, the event tick does not work as anticipated. This happens on all platforms. *Project ca ...
On PC and Mobile Preview, Volumetric Lightmap provide very different Indirect lighting direction
UE - Graphics Features - Lumen - May 18, 2020Expectation: It's known it has different lighting interpolations method and quality for VLM on PCvsMobile; but Indirect lighting from VLM should provide similar lighting Direction on PC&Mobile. ...
RVT output from Landscape Height gets incorrect mip cache loaded
UE - Graphics Features - Oct 13, 2021I test it for more information for your reference:It happens only when a Landscape *Height *was output to the RVT, other Landscape's maps like BaseColor are all fine, as well as Height output from o ...
GPU crash when using RVT BaseColor/Normal/Roughness format
UE - Rendering Architecture - May 24, 2023When using an RVT with BaseColor/Normal/Roughness format on DX12 with a GPU that supports Tier2, a GPU crash may be seen. ...
Bloated instruction counts in the material editor causing long compiles
UE - Graphics Features - Apr 17, 2019artists are dealing with greatly increased iteration times due to long shader compiles when working in the material editor. This has regressed over time as we add more features to the point were wor ...
ExportMaterialProperty doesn't output any FColor data from noise expression node
UE - Graphics Features - Oct 12, 2016FMaterialUtilities::ExportMaterialProperty doesn't take into account any noise expression nodes in the material when outputting the FColor array. ...
Draw debug points do not draw at the same sizes in Orthographic viewports as they do in Perspective viewports
Tools - Oct 30, 2017With the Draw debug points node, the points do not draw at the same sizes in Orthographic viewports as they do in Perspective viewports. This issue does not appear to be a regression. Versions Test ...