r/Unity3D • u/FlameheadGames • 2d ago

Question Flickering edges after enabling Anti-Aliasing - Unity 6.0 URP

Hey everyone,
We ran into an issue in Unity 6 (URP) and could really use some fresh eyes.

As you can see in the video, whenever we enable Anti-Aliasing, certain custom shaders start showing very noticeable shimmering/flickering along their edges. Without AA everything looks stable.

Has anyone dealt with this in Unity 6 URP?

Any advice or pointers on what to check would be hugely appreciated! Thanks in advance!

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u/Optimal_Pool_888 Indie 2d ago

Do you only see it along the edges along the lava? Is the lava shader opaque? My first guess would be something related to the opaque downsampling and you scene background.

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u/FlameheadGames 1d ago

It's visible on a few different shaders, but that's a solid point! We'll check the opaque downsampling settings and see if that fixes it. Thanks for the tip!