2012/5/14 Gwenouille :

Hi !

I was about to buy an art pen for my wacom (the ones that support the rotation infos in addition of tilt pressure etc...).

But before i do, I'd love to know if GIMP can handle that info to actually rotate brushes ?

Can someone confirm it does ?

It's the Wheel column in the Mapping matrix of the Paint Dynamics Editor.

Olivier Lecarme

2012/5/14 Gwenouille :

It's the Wheel column in the Mapping matrix of the Paint Dynamics Editor.

Isn't wheel the option for the airbrush pen ? The one with the little wheel on top ?

It's used for this one too.

I am rather talking about that pen: https://www.wacom.com/en/Store/Pages/Product.aspx?product=ZP600&crumb={61BE90DC-FD90-423A-AB1B-E93B704BEB43} It is rotation sensitive, unlike the grip or airbrush pens.

Your link does not work for me, but I know the Art Pen. I'm using it with the Wheel parameter.

Since we're on this topic, does anyone have any recommendations for good artpad/pen sets to buy? Used, good price, etc? I have an old Wacom/Intuos1 pad, and have lost it's pen, and was thinking about finding a replacement, but on second thought I figured it's probably a waste of time and should look for a newer set that can make use of newer features? Thanks.
Dan

On 5/14/12, Gwenouille wrote:

It's used for this one too.

Your link does not work for me, but I know the Art Pen. I'm using it with the Wheel parameter.

OK, thanks Olivier, that's great news !

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Olivier could you pleas tell whether You use this in GNU/Linux or other OS?

I'm considering new tablet, that supports pen rotation but big problem is to find something that's both affordable and works with GNU/Linux

Thanks Dominik

2012/5/14, Daniel Smith :

Since we're on this topic, does anyone have any recommendations for good artpad/pen sets to buy? Used, good price, etc? I have an old Wacom/Intuos1 pad, and have lost it's pen, and was thinking about finding a replacement, but on second thought I figured it's probably a waste of time and should look for a newer set that can make use of newer features? Thanks.
Dan

On 5/14/12, Gwenouille wrote:

It's used for this one too.

Your link does not work for me, but I know the Art Pen. I'm using it with the Wheel parameter.

OK, thanks Olivier, that's great news !

-- Gwenouille (via gimpusers.com)
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2012/5/15 Dominik Tabisz :

Olivier could you pleas tell whether You use this in GNU/Linux or other OS?

I'm using GNU/Linux, Ubuntu distribution. 11.04 until very recently, and 12.04 for installing the official 2.8 version. I'm not using Unity, but Gnome.

I'm considering new tablet, that supports pen rotation but big problem is to find something that's both affordable and works with GNU/Linux

Wacom tablets and pens are rather expensive, but reliable and performant, and well supported within GNU/Linux. In Ubuntu, Applications -> System Tools -> System Settings has a "Wacom Graphics Tablet" section.

Olivier Lecarme

2012/5/15 Gwenouille :

Thanks Olivier, your help is much appreciated.

Another question from my side: Can GIMP really manage several wacom pens ? I mean can it recognize them as being different and assign different tools/settings to them ?

To my knowledge, this is not presently the case, at least with GNU/Linux. More a problem of GTK+ than a GIMP problem.

I have an airbrush and the grip pen and only the grip pen is available. The brush works, but they act as one, having the same tools etc. I cannot have pencil on the grip pen and airbrush on the airbrush for instance...

Can you ?

No, I can't. You should ask Alexia Death on the #gimp IRC channel. I remember she told me about that problem.

2012/5/15 Gwenouille :

OK, thanks a lot ! I've got almost all my questions answered now !

Last one would be : why can't i use the wheel on my airbrush... but that's a different subject !

It should work, provided there is at least one box checked in the Wheel column of the mapping matrix of your current paint dynamics. No predefined dynamics has that, thus you must create a new one.

Then, if it still doesn't work, you should fill a bug.

2012/5/16 Gwenouille :

It should work, provided there is at least one box checked in the Wheel column of the mapping matrix of your current paint dynamics.

Well, there is one, I've created a custom dynamic with pressure mapped to the wheel.

But in the "Input peripherals" dialog, there is no number mapped to the wheel. There is 1 for X, 2 for Y, 3 for pressure, 4 for Xtilt, 5 for Ytilt but nothing for wheel. And i can't just change that to something else.

I don't think you need anything there. But are we speaking about the same thing? In Image: Edit -> Input Devices there are Axes and Keys. Axes is used for setting the answer curve of the pressure. Keys is not used at all. But that's with GNU/Linux.

I am using the latest wacom drivers.

Do you think it is a wacom or a Gimp bug ?

Linking Wheel to Pressure may be difficult to test. Here is a sketch using the Wacom Paint Brush, with Wheel linked to Angle and a round hard brush with Aspect Ratio set to 10.

2012/5/16 Gwenouille :

I don't think you need anything there. But are we speaking about the same thing? In Image: Edit -> Input Devices there are Axes and Keys. Axes is used for setting the answer curve of the pressure. Keys is not used at all. But that's with GNU/Linux.

Yes, input devices, not peripherals (says "peripheriques" in french) Yes, i can see axes and keys.
Nothing under Keys, and under axes:
X:1
Y:2
Pressure:3
X Tilt: 4
Y Tilt: 5
Roulette (wheel): ien (nothing)

Did you select one of the components of the tablet, in the list on the left? This list mentions the various peripherals. For example, for me it contains four entries for the Wacom tablet. If I select one of them, all entries under Axes specify a number.

I find surprising that "nothing" corresponds to the missing functionnality...

Probably because you are looking at your mouse or something else?

Linking Wheel to Pressure may be difficult to test. Here is a sketch using the Wacom Paint Brush, with Wheel linked to Angle and a round hard brush with Aspect Ratio set to 10.

I can't see any sketch, but I've tried it your way.

It was attached to the message.

Hard brush, flattened by aspect ratio, and the wheel to control the angle. No result... Still dead horizontal no matter what.

I can control that the wacom driver reads the wheel value alright in the control panel diagnose area...

I will try to install an ubuntu somewhere to see what it is like under Linux.

Try the last version, 12.04. I hate the Unity environment, but you may like it, or change to Gnome 3 or even something similar to Gnome 2.

And we can continue this conversation privately in French.

2012/5/16 Gwenouille :

Did you select one of the components of the tablet, in the list on the left? This list mentions the various peripherals. For example, for me it contains four entries for the Wacom tablet. If I select one of them, all entries under Axes specify a number.

Yes i did, in fact there are 3 entries: Core pointer (my mouse)
Wacom Tablet Eraser
Wacom Tablet Pressure Stylus

Doesn't matter if i start Gimp with the mouse, stylus, airbrush... I get these 3.

Notice that the airbrush isn't in there. But both the Eraser and Stylus have a "Roulette:rien" line under the "Axes" table

I guess i should find some "WACOM Tablet Airbrush" line on the left for the airbrush ? And choosing that would lead to having a "Roulette" entry under the "Axes" table ? So does it mean that the driver isn't presenting the full array of available pens to GIMP ?

Probably because you are looking at your mouse or something else?

Well, i am surely looking at the stylus, but not at the mouse, that's for sure. In fact I choose "Eraser" or "Stylus" to get to see that list with the wheel.

Clearly the Wacom support on Windows is inadequate. Whether it's GIMP's or Windows' or GTK+'s fault, I don't know, but the GIMP developers certainly know. Look at the two different states of the Input Devices dialog I attach to this message.

The various Wacom pens are not specifically detected by the input device support, since when I took the two attached sceenshots, I was not even using the tablet. And the Wheel line is present for all Wacom components, including the eraser, the cursor (i.e., the Wacom mouse), and the pad.

Try the last version, 12.04. I hate the Unity environment, but you may like it, or change to Gnome 3 or even something similar to Gnome 2.

Understood ! In fact i already have an old Ubuntu Karmic Koala somewhere on another hard drive. I'll boot on that later.

That's a version of Ubuntu much too old. GIMP 2.8 does not work with 11.04, and I understand that having it to work with 11.10 needs a little preliminary work. With 12.04, it's directly accessible via apt-get or similar tools.

And we can continue this conversation privately in French.

Well, why not, but since this info might help someone else on the forum, I don't mind carrying on in English.

As you like.

Olivier Lecarme

Try the last version, 12.04. I hate the Unity environment, but you may like it, or change to Gnome 3 or even something similar to Gnome 2.

Understood ! In fact i already have an old Ubuntu Karmic Koala somewhere on another hard drive. I'll boot on that later.

That's a version of Ubuntu much too old. GIMP 2.8 does not work with 11.04, and I understand that having it to work with 11.10 needs a little preliminary work. With 12.04, it's directly accessible via apt-get or similar tools.

My mistake: for 11.10 as well as for 12.04, you need to include ppa.launchpad.net/otto-kesselgulasch/gimp/ubuntu in your software sources.

2012/5/17 Gwenouille :

Clearly the Wacom support on Windows is inadequate. Whether it's GIMP's or Windows' or GTK+'s fault, I don't know, but the GIMP developers certainly know. Look at the two different states of the Input Devices dialog I attach to this message.

I'd like to, but i see no attached images ! Where can i find them ? I see no image in the message, and no link to them.

This is because you are not looking at the mailing list, but at the gimpusers pseudo-forum, which is an incomplete mirror of the proper list. Look at https://mail.gnome.org/archives/gimp-user-list/, or better, subscribe to this list.

My actual message is here: https://mail.gnome.org/archives/gimp-user-list/2012-May/msg00323.html

Good to know that the developpers know about that. I know there are plans to move to GTK3, maybe that'll solve the issue.

I think so. But it works on GNU/Linux.

The various Wacom pens are not specifically detected by the input device support, since when I took the two attached sceenshots, I was not even using the tablet. And the Wheel line is present for all Wacom components, including the eraser, the cursor (i.e., the Wacom mouse), and the pad.

I'd like to see that screenshot !

I told you above how to do.

That's a version of Ubuntu much too old. GIMP 2.8 does not work with 11.04, and I understand that having it to work with 11.10 needs a little preliminary work. With 12.04, it's directly accessible via apt-get or similar tools.

Understood. I will burn an iso for the new LTS version. But nevertheless, I've started gimp on that old ubuntu, and i had more input devices than on Windows...

But it's probably 2.6.12, and thus you have only a very primitive version of the paint dynamics.

I'm going to look at wacom forums too...

Not sure it will help.