When working at a small scale in 2.80 I’m constantly having to change the near clipping due to the wireframe peeking through. In past Blender versions, the effect could be reduced by lowering the clip range. This doesn’t seem to work in 2.80. The issue persists even if set to an extremely shallow clip range.
Strangely, if I hold down mmb to rotate the view, the issue resolves until I release the button.
In this example, the clipping range is 1mm to 20cm. It’s shallow enough that it shouldn’t be an issue:
Try increasing the minimum value. 1mm is very low and you don’t really need to zoom in that close. Just setting it to 1cm is plenty close and fixes the issue.
I do find it odd that it appears fine as long as you hold the mouse, or that the issue is only apparent in Edit mode, and not Object mode with wireframe on. I can’t think of any explanation for it. Maybe it’s worthy of a bug report.
The thing is, I DO need 1mm near clipping for some of the work I’m doing (Probably because of bad eye sight more than anything). So while increasing the near plane helps, I’m constantly having to adjust it in and out.
I’m really thinking this is a bug. The Z-buffer has a limited precision between the near and far clipping plane. 1mm is small, yes, but 1mm to 20cm is a REALLY shallow Z depth range. This isn’t a problem in 2.79, and shouldn’t be so in 2.80.
To put the problem into perspective, here’s the same mesh in 2.79 with an insanely huge clipping range of 1μm to 1km. No problem.
