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Brush Pressure

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Brush Pressure Raeth 19 Mar 23:09
Raeth
2007-03-19 23:09:30 UTC (almost 18 years ago)

Brush Pressure

Greetings,

I'm running Ubuntu 7.04 (though I had the same problem on 6.10) on a PC with 1024 MB of RAM and AMD 64 3200+.

I have a Graphire 4, which seems to be set up correctly and I get pressure sensivity in GIMP, mypaint and the wonderful tablet app from http://alexmac.cc/tablet-apps/

I have a linear pressure curve set in xorg.conf, represented by a straight, diagonal curve in the tablet app. Therefore, if I select a brush with the opacity or size I expect it to be at lowest opacity/size when I press down lightly, and at maximum opacity/size when I push down hardest.

GIMP (2.2 and 2.3) does in fact max out opacity and size at only 50% possible pressure! This is contrary to mypaint and the tablet apps (Linux) and opencanvas (Windows). I can accurately tell this by positioning the canvas next to Tablet Apps' pressure gauge, which hits 50% pressure when GIMP's brush maxes out on opacity/size.

Here's a graphical representation of what's going on:

http://i66.photobucket.com/albums/h243/Sliskerm/pressure.png

Does anyone know what is going on? Does anyone else get this problem?

Thanks, Raeth