black arctefacts

Hi there.

Quite often during a painting session, i end up having black pixels wich i can't get ride of. Even ctrl+clic seems to do nothing to this "zone".
I recorded a seesion where it happens : https://www.dropbox.com/s/2ctiq8vzskw2x3g/verve_bug.mp4
(jump to 7:00 for the "bug")

Saving and reloading doesn't seems to clear it neither.

For info my config is an i5-3570k with an nvidia 560 Ti. I work on 2 screens at a resolution of 1680x1050 (verve is on screen one).

[Taron]

Uh, oh man, this "old" version still has that, , but it's a glitch I fixed already for the next version.
May I assume you are working with a graphics tablet and pressure sensitivity, activated on opacity using Brush #9? Yes, yes, yes, I know, don't worry, I'm not going to recommend not doing that, hahahahaha, that would be insane, but I'm just telling you, there are certain funky circumstances where this combination can lead to a GL "line drawing" problem, if the line happens to be smaller than 1 pixel and opacity changes. Somehow it freaks out GL and creates a corrupt alpha value. Well...it's really weird, because I cannot really make any reasonable sounding suggestion outside of: When you paint slowly, watch carefully what happens so you can undo in time. I remember I found some action to get rid of those spots, but can't think of it right now. It's been so long.
Well, rest assured, the next version won't have those troubles anymore!