Re: [Gimp-developer] [Demo] Porting MyPaint brush engines to the GIMP.

[sigetch <sigetch gmail com>]

2012/5/1 Kevin Cozens <kevin ve3syb ca>:
> On 12-04-30 06:29 AM, sigetch wrote:
>>
>> 2. It has 9 inputs, 42 setting parameters, and 30 internal states to
>> determine the timing, position, size, color, and blend mode. while the
>> dynamics has 7 inputs, 11 setting parameters, and no internal states.
>
>
> On the surface it sounds like its more flexible than what GIMP currently has
> but it also seems as if it could be a bit overwhelming to a user with 9
> inputs and 42 settings.
>
> What is an input vs. a setting? Do all brushes have 42 settings or is that
> the total across all brushes? What is the maximum number of settings a user
> would see for a selected brush?
>
> The testers are going to hate you. With so many inputs, settings, and states
> it will be a bit of a nightmare to make sure every combination has been
> tested and is working properly.
>
All you have to do is to download the MyPaint, try it, and see how the
parameters are
handled. Basically they are hidden from users because "Brushes" has
many presets,
and users can tweak only few key parameters in simple parameter
setting popup dialog.
And users can still tweak all parameters from another complex
parameter editor dialog.

While in current snapshot of the GIMP, Parameters are scattered over
dynamics presets and tool options presets. To make it worse, changing the value
of the dynamics directly affect other tool presets which shares
dynamics presets.
You should take carefully the dynamics and tool options, and you
should know how those
parameters related with each other. It is too complicated than the
handling in MyPaint.
--
sigetch