Operating system: macOS 10.15.6
Graphics card: NVIDIA GeForce GT 750M 2 GB
Intel Iris Pro 1536 MB
Wacom Tablet, Intros Pro, or Cintiq 24 HD f.i.
Broken: Version 2.91.0 2020-10-25
Eilert from Hej Stylus! writing. Hej Stylus! is a tool that smoothes tablet output amongst other features.
Hej Stylus! pulls live tablet event data and re-infuses altered events back into the macOS event stream using:
place: .headInsertEventTap, options: .defaultTap, ...
Using any of Hej Stylus!' position smoothing algos creates cursor issues in blender - on tablet use only. Mouse is not affected.
Using Tablet devices causes blender to 'use' both events - although Hej Stylus! is overwriting the tablet events.
We do wonder if you use any functions that force blender to process information directly from a hardware i/O source of some sorts.
Maybe blender also creates events by itself ..
We hope that you might shed some light on how you process incoming events from tablet devices so that we can find a workaround.
Exact steps for others to reproduce the error
1.) To test this issue goto: hejstylus.com and grab the latest version.
2.) Use a graphics tablet
3.) Use a smoothing algorithm (as seen in screenshot)
4.) Draw some annotations with blenders annotation tool f.i.