Niagara Fluids Not Activating

Development Asset Creation FX
, , ,
1

Hello there,

I am a bit embarassed, I am very eager to explore Niagara Fluids but it doesn’t seem to want to start on my computer.

Steps:

  • Activated Niagara Fluids plugin
  • Restarted UE5
  • Created new Niagara System
  • Selected “New system from a template or behavior example”
  • Chose any 3D gas fluid
  • Saved Niagara System
  • Drag and drop the Niagara System in a basic empty map
  • Verified that the Niagara System auto activate

Result:

  • The niagara system appears in the scene but does not activate
  • When running the game, same thing, the niagara system does not activate/play
  • When editing the niagara system, same thing, the gas/fluid does not play

Here is a screenshot:

image
image1914×1040 120 KB

My Graphic Card is an Nvidia 1080 running with 512.95 drivers.
Engine Version: 5.0.2-20280985+++UE5+Release-5.0
I could not find what are the minimum requirements to run Niagara Fluids.

I am a bit clueless on what to do, any idea?
Thanks for your time.

2

Some Fluids work such as the 3d wateror the 3d grid gas explosion.
However, fluids like Grid 3D Gas Dust Explosion or Grid 3D Gas Simple Particle source does not compile.

There is the error from Niagara Editor log:

image
image1407×385 30.2 KB

It is stated that the Mesh distance field generatioon is not enabled.
It wasn’t, so I turned it on and restarted the Engine, but the error persist.

I tried to turn on the “Allow Distance Fields (Experimental)” in the plugin section, still no luck.

I will keep this post updated until I find the answer.

3

After activating Lumen in the project settings all Niagara Fluids are working.

Project Settings > Engine - Rendering > Global Illumination > Set: Dynamic Global Illumination Method to Lumen

3 Likes
4

for me not yet working! Anybody the same?

1 Like
5

For me not yet working either!
It is stated that the Mesh distance field generation is not enabled. But it was.
Dynamic Global Illumination Method was Lumen.
It just doesn’t work.
I tried it on another computer and it works well.

1 Like
6

I just had the same problem - fixed by re-compiling within the Niagara window. Had to press “full rebuild”.

7

I think you need to switch to GPU render cuz if it’s on CPU it won’t show.
Go inside your niagra system , Emitter properties , Sim Target , GPUCompute Sim.
Switch for every emitter you have in a system .
Also check Local space option so it propagate effect inside your level.

8

Thanks! It worked for me :slight_smile:

9

image
image1920×520 142 KB

Not working for me! Please help

10

For me it started working after I set Quality up to high. I don’t know if it takes affect on it, but you should raise your streaming poolsize (if there is more capacity).

11

There are no templates or behavior examples from which to create new systems in the “Niagra Systems” basic asset creation selection.

12

It works fine in 5.0.3. But it just persists in 5.1.0

13

I had the same problem in version 5.3. I solved it as follows:
Project Settings > Engine - Rendering >Experimental> Enable Heterogeneous Volumes - enable
Everything worked

Screenshot 2024-03-19 173140
Screenshot 2024-03-19 1731402447×1081 181 KB

1 Like
14

I have tried every solution but still not working, I am using 5.3 , RTX4080i

15

I also have this Problem, but only with the 3D grid Emitters.
Sometimes the Sphere apears, but with no Gas or Fire…

16

Forward Shading / Rendering is not supported.