Is it possible to batch multiple NiagaraSystems using GPU?

[a2dbd46fe79a4c6fb812f1299f948783 (xuan)]

Hey~
I have a scenario where I’m developing a bullet hell-style game. Each bullet is implemented as an Actor , and this Actor contains a UNiagaraComponent to render the bullet’s visual effect (a glowing orb with GPU Compute Sim). If my game spawns up to 1,000 bullets simultaneously , is there a way to optimize performance by GPU-batching the sprite renderers across all 1,000 Niagara effects?
thanks

[brs-sebascova]

Greetings @a2dbd46fe79a4c6fb812f1299f948783!

Indeed, there are methods to optimize multiple niagara systems in a scene, please follow the included documentation and related threads here:

Optimizing Niagara | Measuring Performance | Tutorial

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Hi! I have a question on whether it is possible to optimize multiple niagara systems. I am making a programmable firewoks display, and every firework is a separate system. This means that sometimes I need to spawn dozens or even hundreds of systems in under a second. At the moment, doing this causes two problems: A significant lag spike (basically about a half-second freeze) when spawning the systems Much lower fps when running 100 small systems then when running one massive system with a much…

Quick Tip - How to Optimize Niagara Effects with Scalability with Stan Petruk

[a2dbd46fe79a4c6fb812f1299f948783 (xuan)]

hi thanks! But I want to reduce the draw call ,Because there could be thousands of particle systems and each particle systems contains one particle.
how can I reduce the Draw call count ?

[brs-sebascova]

Hello again!

In the provided tutorial, this section covers how to reduce overdraw and shader complexity in your Niagara systems.

As an alternative, since your bullets are different actors, the pipeline for actor merging could be useful for your setup. You can learn more about it here.