VFB window doesn't move smoothly when dragging it around

[Alex_M]

The VFB is the only Qt window of the ones you mentioned.
Could you verify the two cases i mentioned?
We're trying on our end, but the reproducibility is sketchy at best, even on different workstations.

I will try. I just need to know what is "Max VFB". Did you mean the Rendered Frame Window?

[francomanko]

I still get the lag with the scene explorer closed and rendered frame window minimised. (see attached video)

[^Lele^]

I will try. I just need to know what is "Max VFB". Did you mean the Rendered Frame Window?

Yes, that's the one.

I still get the lag with the scene explorer closed and rendered frame window minimised. (see attached video)

Argh.

To be clear, our understanding so far is that it's a fight for focus/redraw between the three (!) different UI APIs co-living inside Max currently.
Scene explorer is .net, most of the rest of the Max windows are winAPI, while the VFB is Qt.

If you have an old V-Ray version, where the materials UI weren't Qt but winAPI, dragging the compact mat editor around would crawl even on very modern hardware.
Same for the render settings window (the threads on this are many.)
This was initiated by Max, not by us, version over version, and we had to live with it, until we moved to Qt.

There is a very small chance that we'd be able to do things on our side to ameliorate the issue: it comes with transitioning times like the ones we're in right now, where everyone is migrating to Qt, but not everything can be done at once, and so there's mixing and matching of *very* old, old, and new.

We'll keep looking into this, sorry for the bother.

[Alex_M]

Yes, that's the one.

Got it. Well, I tried the steps you mentioned, but it doesn't seem to make any difference. The VFB still stutters heavily.

[Alex_M]

Hello. I was wondering if this issue is still being looked at. It's been I year and the VFB window still stutters when moved around and it's really bothersome.