Artur J. Żarek

How can I eliminate the noise coming from envlightthat appears in the Vulkan viewport? Increasing light samples in the light itself or in display settings only works up to a point.

I'm trying to match lighting quality of Substance Designer, where environment light doesn't produce any noise. And my reason is that noise obscures subtle texture details. Like on the attached screenshot, where gentle scratches are pretty much invisible at any angle, unless I zoom in the viewport significantly or drastically increase the size of the viewport pane.

Any advice?

Hooray and congratulations! I can't wait to test out Copernicus.

But holy cow, those requirements have gone up significantly. 12 GB VRAM for a dual-head setup, and the minimum of RTX 3080...? Goddamn. :o

But perhaps they're soft requirements? Has anyone tried launching 20.5 on an RTX 3070 in a dual-head config (preferably on GNU/Linux)? Or on a laptop with an RTX 3060? Oh boy, I just bought the thing — specifically with Houdini in mind.

I'm not able to test neither of those two setups ATM. But some info would at least give me the peace of mind.

Your object doesn't look like a rectangle, but its UVs are rectified. It seems there's not enough geometry to support (or compensate for) the difference between physical primitive shapes and their UV representations.
Add more vertical and/or horizontal spans. In other words: add more geometry to minimize the UV distortion.