Brush tool closes automatically in psychojs/online, despite closeShape : false

[Aridosecco]

Hi , the jittery lines issue is discussed here. I have tried it to get around it by also drawing circles when the mouse is moving slowly but that is very complex and does not work very well (yet).

Drawing using the mouse as brush

Continuing the discussion from Drawing using the mouse as a brush: I posted a comment on this thread but I don’t think anyone saw it. Bumping by posting as a new topic. Apologies if someone else has covered this. The gist is, for online experiments, if you click on the demo above (and in my code), and move the mouse somewhat slowly with the mouse held down, the ‘shape’ draws with intermittent pixels (screen shot attached). The top line was drawn quickly and smoothly. The bottom line was drawn …