Niagara Emitter editor forgets Timeline playback ranges

Rendering - Niagara - Sep 14, 2020

This seems to only affect an emitter and not a system asset. ...

Volumetric Material not compiling on Niagara Mesh Renderer

Rendering - Niagara - Sep 1, 2020

The Volumetric Shader seems broken when used along the Niagara Mesh Renderer. Reported and tested in version 4.25.3(CL 13942748). Tested with same result in version 4.24.3(CL 11590370). ...

Translucent particles can no longer be selected when translucent selection is on

Rendering - Niagara - Aug 25, 2020

Translucent selection does not work on Niagara particles. This was working in 4.24. ...

Niagara Parameter Collection Overrides aren't working

Rendering - Niagara - Aug 20, 2020

Parameter collection overrides defined in the Niagara system's System Properties do not work. In FNiagaraSystemSimulation::GetParameterCollectionInstance the return value of GetParameterCollectionO ...

Niagara Particles do not respond to Set World Origin Location

Rendering - Niagara - Aug 17, 2020

Setting the world origin will not update existing Niagara particles. ...

Crash accessing USplineComponent from Niagara while it is being updated on game thread

Rendering - Niagara - Aug 13, 2020

I was working with a licensee on something unrelated, and ran into this niagara threading crash. It looks like UNiagaraDataInterfaceSpline::SampleSplinePositionByUnitDistance on one of the niagara h ...

Uniform Static Mesh Sampling doesn't work on GPU Niagara Emitters

Rendering - Niagara - Aug 11, 2020

Uniform sampling of static meshes for GPU emitters does not work. ...

Niagara mesh renderers with a volumetric material trigger a handled ensure and are invisible in the scene

Rendering - Niagara - Jul 29, 2020

Volumetric materials on a Niagara mesh renderer will not appear in the scene and cause a handled ensure.  ...

Black flickering on Mesh particles when the Renderer is set to a non-default Facing Mode or using Orient Mesh to Vector and when using Particle Position in the Material's WPO

Rendering - Niagara - Jul 23, 2020

Black flickering on Mesh particles when set to a non-default Facing Mode or using Orient Mesh to Vector and when using Particle Position in the Material's World Position Offset ...

Random Tri Coord Using Vertex Color Filter doesn't filter correctly

Rendering - Niagara - Jul 22, 2020

The Random Tri Coord Using Vertex Color Filter module does not filter correctly.  ...