Sneaky Upgrade Editor Edition: Unofficial patches for T3Ed and friends - by snobel
peter_spy on 27/12/2023 at 12:32
Hi guys, is there any fix for the input lag when you select things in editor viewports on Windows 10? It works okay on a new map, but if you open an OM for example, it can take like 2-3 seconds to select something, even with things being hidden. Is there any known workaround for that?
snobel on 29/12/2023 at 17:15
I had a brief look at it some time ago, hoping for an easy fix - but nothing stood out. It's probably the effect of 37 layers of Windows compatibility code...
peter_spy on 29/12/2023 at 21:03
Hah, makes sense. I wonder if running T3ed via WinXP VM would change anything, but I lost my tools ages ago. Thanks for the info :)
peter_spy on 24/1/2025 at 21:13
I haven't ran it in VM environment, but I checked the performance with MSI Afterburner – it seems like selecting stuff in viewports causes big GPU spikes, like to 85% load and such. Also the framerate in viewports is typically under 45 fps, I think with modern hardware it should easily be solid 60 or just your monitor refresh rate. Maybe something's locked up in the software.
It's also worth noting that my resolution is 4k. I did an experiment and went down to 1280 x 720, which is obviously ridiculous – but the lag was almost gone. So maybe it's something in the editor itself, it lacks necessary optimisations to run in high resolutions, or something like that. I'd expect something like single CPU threading and perhaps internal FPS limits to blame, but those were GPU spikes, not CPU. :o
