Flickering issues when rendering a large number of meshes using Niagara particle clusters.

Development Rendering
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1

I’m creating a scene with a large number of enemies using MassAI and Niagara particles, where Niagara is fully responsible for their appearance. However, I’ve found that when Temporal Anti-Aliasing (TAA) is enabled, the meshes rendered by Niagara flicker. The flickering is less severe for particles close to the camera, but it’s extremely bad for particles further away, and there’s even motion blur appearing.

I tried turning off anti-aliasing, and the flickering disappeared, but the jagginess is unacceptable. Is there any way to fix this annoying flickering and motion blur? Debugging particle is just so difficult for me.:sob:

2

I think you have bigger problems than AA.

That thin line behind the mesh head doesn’t make any sense. Could there be phantom geometry creating the aliasing?

Also, some of the noise is bigger than AA would create, that splotchiness almost looks like a lumen artifact on low settings.

Bottom line, you shouldn’t be using TAA, use TSR. It’s Epic’s preferred AA implementable and tends to work well on opaque meshes, especially with how geometrically simple these are.