Oh! sorry @fwilleke80 I misread your first message.
@ferdinand, I think I got confused from the beginning. I made a copy of my code from an objectData plugin to a scenehook plugin without changing DRAWPASS to SCENEHOOKDRAW 🤦
Everything is working just fine now(... except the aliasing) but the result is acceptable.
OK.png
Thanks to both of you!
Best Regards,