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

["Joao S. O. Bueno" <gwidion mpc com br>]

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
>  -><-