Cloud Layer + MSAA do not like each other

Graphics Render Pipelines
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1

Hi all,

I’ve come across another issue with MSAA.
I’m rendering in Forward with MSAA and global volume with a cloud layer. This creates an outline around all geometry with the cloud layer directly behind it. The sun is positioned at a sunset time so the sky is orange in colour. See image below.

image
image518×618 34.5 KB

This happens with all geometry not just my own.

EDIT: This also affects volumetric clouds

Has anyone come across this issue and know how to fix it?

Thanks

2

Looks like specular aliasing to me. Try enabling Specular AA in the shader/material.

3

Thanks for the input but unfortunately it’s not specular AA. It’s entirely linked to clouds(cloud layer or volumetric) and MSAA. It looks like clouds are not part of the MSAA step.

4

Can confirm the outline edge before clouds that does not appear without MSAA

no msaa
no msaa446×606 31.1 KB
msaa 8x
msaa 8x446×606 31.7 KB

5

Thanks for the confirmation!

I don’t understand how this has not been tested at Unity’s side!

6