Re: [Gimp-user] MIDI controllers for controlling brush size and colors [was: Save Export Complaints]

[Ryan Stark <effluxion googlemail com>]

I can't even remember the brush size. I'm not looking at Gimp as
present, It's just WAY too large in Gimp 2.8. 2.6 was fine. I've not
used 2.6 for years so I can't remember everything about it as far as
this logarithmic stuff etc is concerned. I'm not even looking at 2.8.
I'm on a Mac. Gimp is on my Linux system. I flit from doing music on
the Mac then doing graphics on Linux. I had to move off Linux for
music unfortunately. It's not advanced enough yet. Next time I work in
it for graphics I'll check all of this out. I'll need to compile Gimp
to get the brush smaller. We need to collect info about what needs to
be done then Gimp needs to be released in some usable state as far as
brush sizing. Most users of Gimp are't going to compile and change
code and I can't be bothered with that either. At present the
situation will make people go to Mypaint or Krita for painting but in
my opinion Gimp is still better.

Largest brush size needs to be adjustable. As you say, this could be
done in preferences. When I looked into how to find the largest brush
size in code before compiling, I also noticed that this code had info
to add UI to change that but I didn't use that. Now I don't know where
I found that code change. It's on the net somewhere but I'll look for
it again.

On 13 September 2012 12:47, Joao S. O. Bueno <gwidion mpc com br> wrote:
> On 13 September 2012 08:26, Ryan Stark <effluxion googlemail com> wrote:
> > Yes, exactly, that is the problem. You can change the default brush
> > largest size before compiling. Presently it's too large and this needs
> > discussed with developers. I found somewhere how to change that code
> > and it's very easy to do. Just find that one value and change it but
> > also some UI that can be added to alter that largest brush size from
> > Gimps UI. My Gimp is currently installed in the standard way. Next
> > time I use it for painting I will compile and I'll document how to do
> > that. At present, I can't even remember how to do that. I'm not even
> > writing this from Linux. Somewhere on my Linux machine is a note on
> > how to do it. This needs changing on Gimp. Whether you are using MIDI
> > or a tablet slider, the largest size of brush is ludicrous. It effects
> > all the brush sizing - stepping it up etc. It's no good.
>
>
> What do you think would be a reasonable largest size multiplier
> (as opposed to actual brush size)? The current value is 1000.0 -
> in the previous version it was 10.0.Also, up to GIMP 2.6, feaures that
> ranged
> from 0 to 1000.0 (like actual brush radius) would vary in a logarithmic way,
> meaning that if you started with a value of 5.0, small variations
> close to that would make changes from 2 - to 20.0 --if you started at
> 500.00,
> the same small variations could take you to 150.0 - 1000.0
>
> Maybe, simply having the  largest brush size as  a value in preferences
> could make up
> for all use cases.
>
>
>
>
> > On 13 September 2012 12:17, Joao S. O. Bueno <gwidion mpc com br> wrote:
> > > On 13 September 2012 07:25, Ryan Stark <effluxion googlemail com> wrote:
> > > > One problem with Gimp 2.8 is that the
> > > > top size of the brush is far too big. If you compile from scratch you
> > > > can change that. This needs to be mentioned in the Gimp developer
> > > > list. It's also possible to have UI to set that largest size of brush
> > > > so it's not too big. I've seen the code that needs added to do that.
> > > > This all needs to be better sorted out to make Gimp more ideal for
> > > > painting.These are simple changes that need to be in Gimp. Changing it
> > > > and compiling is too much trouble.
> > >
> > >
> > > Oh well...we used to have logarithmic brush size control. Now, you have
> > > a
> > > linear space ranging from 0 to 1000.00 - if you have to control the
> > > brush
> > > size
> > > using a 2 cm course MIDI pedal, it simply won' t do -out of the box -
> > > But I think it could be controled using the dynamics curves:
> > > create a new brush dynamics, map the input control to brush size there,
> > > and
> > > edit
> > > its curve so that the maximum size (right) is at roughly 10% of the
> > > graphic
> > > height.
> > >
> > >   js
> > >  -><-