LWRP - TAA Anti Aliasing - Shader Flicker Problem

Unity Engine
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1

Hi,

I’m currently facing a problem with TAA anti aliasing enabled and the Outline Shader from Quick Outline | Particles/Effects | Unity Asset Store

My Project Setup:

  • Unity 2021.3

  • LWRP

  • TAA enabled via Post Process Effect

When I enable TAA via post processing, I get a strange flicker. Normaly I only want to display the silhouette, when the car is hidden behind objects. In the following video, I first have TAA enabled. You can see the flicker, when the car is visible. When it’s hidden, it works correct. Then I change the AA to something else, and everything is fine:

First I want to understand, how can this happen? How can TAA create this behaviour? Then I may can find the issue :slight_smile:

Also I had the idea, to create the Shader via Shader Graph. With Unity 2021.3 it’s possible to use it in the LWRP. I’m already using it, but I couldn’t find a tutorial for it. Only if you are using the URP.

2

Hi, I don’t think that LWRP supports post-processing stack’s TAA. (requires motion vector)

Maybe try other AA methods instead?

3

Thanks for the feedback.
First I tought, that everything else looks fine, but now I found some issues with the rain effects I have implemented.

So I guess, that there are some issues with specific effects.

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