Hm, if it was GPU accelerated, it would surely be painted in smooth 60fps, but it is not. I use Bitwig 3.03, 10.13.14 and a decent GPU. Bitwig tends to display VST GUIs with maximum FPS. If I scroll the OSCs and filter modules, for example, I see a lot of lagging, it feels sluggish. Also the knobs itself do not "feel" snappy that's why. Seems to me it is a pretty low FPS, which even is fluctuating, depending on how much is refreshed. Sounds to me like purely CPU drawn then. I don't know how I can explain it better... I think the goal should be a constant 60fps, shouldn't it? Since 60fps seems to be the common standard for computers. Even it was constant 30fps, it would be ok. That said, I can still use Zebra quite nicely, as long as I do not record GUI controls directly or so.Urs wrote: Fri Nov 22, 2019 11:20 am Hmmm, could you elaborate a bit more? We're pretty sure that drawing on Windows is now almost twice as fast as it was in the previous version. On macOS X (10.12 and up) we brought back hardware acceleration for most of it, and the things that don't have hardware acceleration are not in Zebra.
We also brought back extra smooth knob/fader moves during mouse interaction.
Hence, I'm not sure what's sluggish now - we wouldn't know what to fix...
If I compare it with the Falcon GUI (JUCE based), the Falcon gui feels similar sluggish in cpu mode. But if I switch it to "OpenGL"/GPU, it is pretty snappy.
