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I'm building a Niagara System for fire and smoke that would be placed on a torch when it's lit. While smoke works just fine when it's static, when I move the camera (and so the torch itself moves too) the smoke is always far behind the torch. I understand it makes sense from physics perspective, but for the purpose of my game I need the smoke to be static on top of the torch, so I want all particles to always be vertically above the torch.

Is there a way to turn off inertia (for lack of a better term) on particles? Or probably I should use another approach for my problem?

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  • \$\begingroup\$ In Unity this would be done by changing the "Simulation Space" on the particle system to "Local" instead of "World" — is there a similar setting in Niagara? You may also want to consider using a ribbon of geometry rather than discrete particles — this can let you get fluid swaying of the flame/smoke when the torch is in motion, without high overdraw costs from tonnes of particles. \$\endgroup\$
    – DMGregory ♦
    Commented Sep 25, 2023 at 0:05
  • \$\begingroup\$ @DMGregory Yes, that's exactly what I was looking for, one checkbox fixed the problem. Guess I couldn't properly formulate my question to google. Thanks a lot. \$\endgroup\$
    – user3272018
    Commented Sep 27, 2023 at 21:20

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With a suggestion from @dmgregory I found a solution: Local Space makes particles relative to the emitter origin. It is located under Niagara Overview Node's properties -> Emitter > Local Space.

enter image description here

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