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

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 ...

Crash when capturing attribute spreadsheet of Niagara GPU Particle with raytracing enabled

Rendering - Niagara - Jul 8, 2021

Also, NiagaraDebugger crashes the moment I enable GPU Particle Readback. ...

When creating an asset from an Emitter with a scratch module, changes to the new module will not propagate

Rendering - Niagara - Jun 21, 2021

A scratch module made in an emitter, will not reflect the changes of its new parent when an asset is crated from the emitter. ...

FConsoleVariableBase::SetOnChangedCallback behaves incompatibly with previous versions

Rendering - Niagara - Jun 17, 2021

FConsoleVariable::OnChangedCallback was changed to a multicast delegate in 4.26. Along with this, FConsoleVariableBase::SetOnChangedCallback was implemented to emulate a single delegate for compatib ...

When Niagara is set to DesiredAge in Sequencer, the processing load increases after play

Rendering - Niagara - Jun 3, 2021

This does not happen in 4.25.4. It has been confirmed to occur with 4.26.2 and UE4main. After playback is complete, a large amount of stalls can be seen in Insight. ...

Uninitialized Critical Section exception error in Niagara/VectorVM when gflags application verifier enabled causing potential Memory Corruption

Rendering - Niagara - May 25, 2021

The following is posted from the user who submitted this issue: We noticed a crash happening in a certain area of our game, and the debugger showed it appeared to be attempting to free an invalid m ...

Crash when setting Kill Particles to true on some emitters in a Niagara System

Rendering - Niagara - May 20, 2021

When setting the Kill Particles boolean of an emitter in a Niagara System to true, the editor crashes. So far, I've only been able to reproduce the issue with the NS_EH_KP system that a user provide ...

Crash when adding an Event Write node to a Niagara Scratch Pad module

Rendering - Niagara - May 13, 2021

It seems that the crash is related to all of the "Write" events. I tested the Event ChaosDestruction Write, Event Float Write, and Event Bool Write and all 3 caused the crash, but their "Read" count ...

Material cannot be set in MaterialInterface of NiagaraParameterCollection

Rendering - Niagara - Apr 16, 2021

When MaterialInterface is added to UserParameter of NiagaraSystem, Material can be set in Properties. Also, in UE4main CL15988344, there is no MaterialInterface item in the NiagaraParameterCollecti ...