How to add MyPaint Brushes to Gimp?

Wallace · **Posted:** Sat Jun 01, 2013 4:50 am **(#1)**

GIMP Version: 2.6.11
Operating System: Windows
OS Version: XP - SP3
GIMP Experience: Advanced Level

List any relevant plug-ins or scripts:
N/A

List any ERROR messages you received:
N/A

Can the MyPaint brush engines be added to Gimp 2.6.11? If so... what would I need to do?
And is this even possible?

I've included an image of what I'm referring to...

K1TesseraEna · **Joined:** Sep 22, 2012 **Posts:** 2089 **Location:** US

You need to hack GIMP to port MyPaint engine to it. Hacking GIMP
GIMP Painter is a gimp fork hacked by the Japanese guy sigetch, he was the first to port MyPaint engine to GIMP.

Wallace · **Posted:** Sat Jun 01, 2013 2:52 pm **(#3)**

K1TesseraEna wrote:

You need to hack GIMP to port MyPaint engine to it. Hacking GIMP
GIMP Painter is a gimp fork hacked by the Japanese guy sigetch, he was the first to port MyPaint engine to GIMP.

Thanks for the link K1TesseraEna, I've copied the information and will go over it all asap. It does look rather complicated, but it's worth checking out. :bigthup

Graechan · **Posted:** Sat Jun 01, 2013 7:16 pm **(#4)**

My 32bit version of gimp painter from Onkel-Hatti works successfully with MyPaint brushes, GMIC, MathMap and Gurm and everything else I could toss in

Wallace · **Posted:** Sat Jun 01, 2013 8:24 pm **(#5)**

gramg wrote:

Well...don't keep it a secret...lol, and I know you want to keep your 2.6...so I hope whatever you have planned will work. Good luck.

Yes for sure...

I have to look over all the data, if I can make any headway... I'll be sure to share it with you all.
I'm not really into this kind of thing, but with all this info available, I have to see what's up. Something has to give...

Wallace · **Posted:** Sat Jun 01, 2013 8:28 pm **(#6)**

Graechan wrote:

My 32bit version of gimp painter from Onkel-Hatti works successfully with MyPaint brushes, GMIC, MathMap and Gurm and everything else I could toss in

@Graechan,
Excellent! :yes

Your a gem...

Graechan · **Posted:** Sat Jun 01, 2013 10:04 pm **(#7)**

Wallace please keep in mind GimPainter is not a plugin but is a portable Gimp that looks like this

K1TesseraEna · **Joined:** Sep 22, 2012 **Posts:** 2089 **Location:** US

Hacking gimp isn't enough.
Porting MyPaint brush engine to gimp requires some coding.
My Paint is mostly written in Python but, if not mistaken, brush engine
is in C++.
GIMP's core is written in Scheme, everything else in C.
I believe (not sure) it could be ported to gimp via Python module, i think that's how it works in MyPaint.
Maybe it's possible to make a C wrapper for C++ libraries of the brush engine (w/o Python module).
But you need to have basic knowledge of at least 3 languages: C++, Python and C.

Rod · **Joined:** May 16, 2010 **Posts:** 16126

It's already forked as Gimp Painter and works excellent.

Drawbacks- No python module support yet. At least i haven't been able to figure out how to get it to run Python modules.

Rod · **Joined:** May 16, 2010 **Posts:** 16126

HAH! I got it to work after all.

I had to remove the old folder of gimp painter\python in Onkels version and replace it with Parthas python folder (from his gimp-2.8.4 build), that and change the pygimp.interp.o and pygimp.interp files in Onkels lib\gimp\2.0\interpreters folder to show the exact path to the pythonw.exe file

Excellent! :bigthup

This now opens the door to add python plugins in Onkels painter version where the brush engine works correctly.

K1TesseraEna · **Joined:** Sep 22, 2012 **Posts:** 2089 **Location:** US

Rod wrote:

It's already forked as Gimp Painter and works excellent.

Rod, Wallace wants to hack gimp and port MyPaint brush engine to it himself.
He knows about GIMP Painter but doesn't look for easy ways.

I have tons of respect for whoever does a little more than download and use
the vanilla version of gimp. :clap

Like they say on gimp developers forums: true man builds GIMP from the source code in git repository.

Rod · **Joined:** May 16, 2010 **Posts:** 16126

K1TesseraEna wrote:

Rod wrote:

It's already forked as Gimp Painter and works excellent.

Rod, Wallace wants to hack gimp and port MyPaint brush engine to it himself.
He knows about GIMP Painter but doesn't look for easy ways.

I have tons of respect for whoever does a little more than download and use
the vanilla version of gimp. :clap

Like they say on gimp developers forums: true man builds GIMP from the source code in git repository.

"True man" ?
:rofl

I have built Gimp in Windows from the GIT repository and believe me even though i can do it, i would rather take the shortcut. :lol

- http://simplysignage.110mb.com/blog/blo ... 505-071103

I got to respect wanting to hack the Gimp core though. Good luck with that Wallace. :bigthup

K1TesseraEna · **Joined:** Sep 22, 2012 **Posts:** 2089 **Location:** US

You're a real man, Rod! :bigthup

Never doubted that.

Rod · **Joined:** May 16, 2010 **Posts:** 16126

K1TesseraEna wrote:

You're a real man, Rod! :bigthup

Never doubted that.

Thanks but i would still rather take the shortcut :lol

molly · **Joined:** Apr 07, 2010 **Posts:** 14182

lol, that is the only way I will be able to do that too. I am not a programmer, script writer and all the things in between. I would like to be able to use some of the MyPaint brushes in Gimp, and I would also like to use some of my Gimp brushes in MyPaint. I don't know how to compile, or even if this is possible so I guess I will stay the way I am for now until an easy 1.2.3 install comes available I don't use Gimp Painter.

K1TesseraEna · **Joined:** Sep 22, 2012 **Posts:** 2089 **Location:** US

molly wrote:

lol, that is the only way I will be able to do that too. I am not a programmer, script writer and all the things in between. I would like to be able to use some of the MyPaint brushes in Gimp, and I would also like to use some of my Gimp brushes in MyPaint. I don't know how to compile, or even if this is possible so I guess I will stay the way I am for now until an easy 1.2.3 install comes available I don't use Gimp Painter.

Good news for you molly! http://libregraphicsworld.org/blog/entr ... ack-format

molly · **Joined:** Apr 07, 2010 **Posts:** 14182

Thank you so much Kit...I will be looking forward to this when it is available.

Rod · **Joined:** May 16, 2010 **Posts:** 16126

I just mainly wanted my Gimp Painter to run python plugins which it now does.

Strange how Parthas build had a bad brush engine and good python initialization, and Onkels build had a good brush engine and faulty python initialization. :lol

K1TesseraEna · **Joined:** Sep 22, 2012 **Posts:** 2089 **Location:** US

Rod wrote:

I just mainly wanted my Gimp Painter to run python plugins which it now does.

Strange how Parthas build had a bad brush engine and good python initialization, and Onkels build had a good brush engine and faulty python initialization. :lol

Gimp Painter is mostly for painting and its users usually don't rely heavily
on Python scripts (if at all). It's more like MyPaint on steroids with some extra GIMP features and
familiar user interface.

I got confused with the description of what you did. Therefore, the question:
if you bind pygimp.interp to GIMP installation (that's where i got confused the most)
will it run on a computer without gimp?
In other words, what you've built, is it still portable like Onkels build?
Thank you, Rod.

Rod · **Joined:** May 16, 2010 **Posts:** 16126

K1TesseraEna wrote:

Rod wrote:

I just mainly wanted my Gimp Painter to run python plugins which it now does.

Strange how Parthas build had a bad brush engine and good python initialization, and Onkels build had a good brush engine and faulty python initialization. :lol

Gimp Painter is mostly for painting and its users usually don't rely heavily
on Python scripts (if at all). It's more like MyPaint on steroids with some extra GIMP features and
familiar user interface.

I got confused with the description of what you did. Therefore, the question:
if you bind pygimp.interp to GIMP installation (that's where i got confused the most)
will it run on a computer without gimp?
In other words, what you've built, is it still portable like Onkels build?
Thank you, Rod.

Yes it is portable.