Re: [linux-audio-dev] Knobs / widget design - Linux-audio-dev

9 Jun 2004

...
  Message: 3
 Date: Thu, 10 Jun 2004 01:40:01 +0200
 From: Benno Senoner &lt;sbenno(a)gardena.net&gt;
 Subject: Re: [linux-audio-dev] Knobs / widget design
 To: "The Linux Audio Developers' Mailing List"
 &lt;linux-audio-dev(a)music.columbia.edu&gt;
 Message-ID: &lt;40C79FD1.4030306(a)gardena.net&gt;
 Content-Type: text/plain; charset=ISO-8859-1; format=flowed

 Very nice knobs Thorsten !
 We could use them in LinuxSampler :)
 Rui Nuno Capela has started work on the GUI
 http://www.linuxsampler.org/screenshots.html
 For example the channel strips could use a knob for volume instead of a
 fader
 which would save some space.

 Thorsten in what format do you plan to release the knobs ?
 As a serie of pixmaps in various sizes  ?
 ( I guess for larger knobs at least 50-100 pixmaps are needed
 to allow for smooth movements).
 Or do you use open source rendering apps thus posting the 3D source file
 with instructions
 how to render the various positions (that would be cool since everyone
 could render their
 own customtailored pixmaps).

 let us know, keep up with the good work.

 cheers,
 Benno 
Hi Benno,

I've played around creating 3D knobs using a combination of Povray, Perl and
gimp-perl. Basically, you create a base file in povray, start gimp-perl
server  and then run the Perl script to create incremental images and
convert them to whatever format you need. Some examples are here:

http://members.optusnet.com.au/~adamjking/images/knobs/knobs.htm

The scripting is a quick and dirty hack, but it work for me.

Cheers,
Adam