Low-res pixelated rendering in viewport on Mac

encountered issue

In the viewport, when Raytraced mode is on, I always get a pixelated result, regardless of the settings. I have also attached a screenshot showing the rendering settings.

Possible solutions?

Device: MacBook Air M4, MacOS 15.3.

Rhino version: Version 8 (8.24.25281.15002, 2025-10-08)

This problem has been resolved by increasing the ‘Sharpness’ parameter in the Rhino rendering settings. The issue with this setting is that its purpose is unclear. Typically, ‘sharpness’ refers to increasing the contrast between the edges of objects in an image, rather than to pixel resolution for rendering in the viewport.

Please consider changing the wording and adding numerical parameters for this setting.

I would’ve thought that resolution sharpness already gives enough indication that it is about… resolution. Not contrast.