On 9 October 2013 11:32, David Revoy <davidre...@gmail.com> wrote:
> Hi,
>
> I was away Mypaint testing since spring ( few weeks after LGM ) , because I
> experienced more and more problems with master , keeping around during
> weeks, and it was too hard to follow in production. I decided to build
> Git-master this morning, and run new test. ( attracted by emails from
> mailing-list, and a PM poke from José Américo Gobbo  ).

Hi David,
please scream loudly when things change in master that cause problems
for your workflow. Quick feedback from artists is critical for us.

>
> Here are my observations, painting on Git-master :
> http://i.imgur.com/navr8HE.png
> ... output lines are angular, laggy and not precise. The lines display fast
> ; but it's like all the coordinate of the stylus were crunched on the way ,
> or were being recorded without sufficient frequencies.
>
> So, I uninstalled, cleaned the folders , and put 1.1 back from Arch package
> ( 1.1 got also an annoying issue for me in cursor size and offset who got
> solved in master , I think I'll build a git~master a bit post 1.1 soon for
> my personal use)
> Same sketch on 1.1 to compare :
> http://i.imgur.com/wybB5Mi.png
> Smooth lines are back, and very sync to what gesture I have in mind. No
> angular breaks observed, even drawing speedly.

To confirm: Between these two screenshots, you only changed MyPaint
version right? No changes to GTK+ version or anything else?

Could you test a small thing for me on git master? (remember that you
don't have to install it, can just run straight from source
directory).

In gui/canvasevent.py change
MOTION_QUEUE_PRIORITY = gobject.PRIORITY_DEFAULT_IDLE
to
MOTION_QUEUE_PRIORITY = gobject.PRIORITY_HIGH_IDLE + 10
or even
MOTION_QUEUE_PRIORITY = gobject.PRIORITY_HIGH

Does that make the performance any better?

> Maybe it's a local bug... I hope. Because it makes my local experience made
> of frustration, and make me sad, because I was used to Mypaint Git-master
> very stable and usable since 2009. I hope it's only a local observation, and
> it can be solved !

Everything can be solved :) And from the information you gave it even
looks like the problem is in MyPaint itself, so it should not be too
hard.

-- 
Jon Nordby - www.jonnor.com

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