Graphical glitches in 3D Viewport

[ForeskinJim]

What happened?

Installed a fresh OpenSUSE Tumbleweed system. I built NCR from source and after launching the editor I noticed this strange glitch with the 3D Viewport:

Animated GIF

Strange lines appear around the rulers of the selected brush. I've just been working around it as there doesn't seem to be anything else wrong and it's not that annoying once you're used to it.

This also seems to happen with the pre-built version as well. My friend on Arch says they are also having this issue.

Changing the colours/viewport layout does not resolve the issue.

The logs

Here is the terminal output

System Specs

• AMD Ryzen 5 5600
• AMD RX 6600
• 32GB RAM
• SSD
• Latest OpenSUSE Tumbleweed 2025/01/30 Kernel 6.13.0

[Garux]

Looks like GL_EDGE_FLAG_ARRAY bug in AMD video driver.

netradiant-custom/radiant/camwindow.cpp

Line 826 in 607d4c6

gl().glEnableClientState( GL_EDGE_FLAG_ARRAY );

netradiant-custom/radiant/camwindow.cpp

Line 893 in 607d4c6

gl().glEdgeFlagPointer( sizeof( GLboolean ), edgearr.data() );

You can disable rulers in menu.view.show.3d workzone.
Real solution would be to compose a fragment shader for workzone rendering.

[Garux]

Another kind of visual problem with AMD driver.