where did libgtkglext1-ruby go in ubuntu 11.10?

December 28, 2011

I was hoping someone could offer some hints.

Comments are open or reply at the related bug:


ScreenRuler and Studly translators – French, Spanish, Brazilian Portuguese, German, Czech, Serbian needed

November 28, 2011


The French and Spanish translations are almost done and need a little push.

ScreenRuler (in Debian and Ubuntu repositories)

The French, Serbian are Czech are well underway and could use a little more love.

Thanks for helping out!

Fun with Luz Motion Graphics + Chipmunk 2D Physics

November 1, 2011

Luz is a live motion graphics editor and performer for the Linux desktop. With the addition of Chipmunk 2D Physics, it is a game development studio.

Multiple physics simulations running with different gravity settings.

In a fully vector world, zooming in shows more detail.

More examples of what you can make with Luz Studio.

ScreenRuler is now translatable in Launchpad.net

August 12, 2011

If you’d like to contribute translations, check out:

This is my first translatable app so please also let me know if I did anything wrong!


Luz Studio – Live Code Editing and Reloading demo

July 26, 2011

Luz is a live motion graphics editor and performer.

Being able to reload the source code of an app without restarting it speeds up development immensely!

The video below is a short snippet of actual development of Luz Studio, where I’m finalizing the support for the DiscoverDJ device that was plunked down on my desk by a co-conspirator.

Luz project page.

Luz with Chipmunk 2D Physics Integration

July 4, 2011

View in HD and with Captions.

Luz tutorials.
Luz project page.

Luz Project Page gets Simple Install Instructions

March 11, 2011

The Luz Project Page now has simple install instructions; just a single copy and paste into a terminal on any Ubuntu desktop!

Please leave a comment with any feedback on the process.

While you’re waiting, you may like these Luz Tutorials.

And, coming soon…

Driving visuals and DMX lighting from live 3D body motion, including ridiculously easy Johnny Lee style head-tracking using just a Kinect.

If you like where this is going, please consider leaving a tip.  It all goes directly to development of “killer app” open-source software for the linux desktop!

Luz gets DMX lighting control

February 12, 2011

DMX is a standard for controlling lighting and other show devices (lasers, smoke, fog, heat machines). Many of the club and venue lighting systems are DMX, especially the larger ones.

Luz can now output DMX commands via an Enttec DMX USB Pro, a serial-usb device that is plug-n-play in Linux.

Luz meshes VERY well with DMX!

Conceptually, DMX is a 512-channel data bus, each holding a 0-100% activation (0-255). Each lighting fixture is configured to listen to a subset of those channels (often 3 for RGB). That’s it.

Luz Variables form an unlimited-channel data bus, each holding a 0-100% activation:

Luz Variables get their values from human inputs, or from animations over time or beats.

Luz as a live DMX lighting controller feels very natural.

What does DMX control get us?

Luz can now make the house lights dance. It can animate color and brightness changes on the beat of the music, or via human input on any sort of input device (Wacom Tablet, Wiimote, MIDI piano), or via the Spectrum Analyzer, or any other application that can send OpenSoundControl to Luz on a LAN or Wifi network.

You could control a stadium’s lighting with a Wiimote. You could play the club lights with a midi piano.

Below is a video of some early experimentation with projector-lights synchronicity. I directly connected the Spectrum Analyzer’s signals to color control of the primary actor on the projector, and also to the RGB color of four Colorsplash JRs LED DMX lights:

Right now I’m at the point where all the technology works, and I’m deciding how best to integrate DMX into the Luz Studio experience.

I’m thinking that DMX plugins will be in your Directors. So each of your Directors will have a handful of Luz Actors creating the projector image, and a handful of DMX plugins controlling the house lights.

This makes it easy for users to create full projector + lighting packaged experiences, and even to crossfade between lighting experiences in sync with the visuals on the projector transitioning gradually between Directors (using Director Cycle or Director Voyage).

I’m open to your thoughts, ideas, questions, proposals for collaboration (Portland, OR).

Luz is very easy to install on Ubuntu. See the easy Luz installation instructions on the project page.

Luz Studio is free and open source software. My favorite toy and my gift to you! If you like Luz and would like to donate a small amount or become a $1/month Luz Project Supporter that would also be most appreciated!

Luz Studio 720p LightTroupe Rendering

February 4, 2011

This video was produced while testing the Luz Studio video production workflow. It has some great moments so I thought I’d share it.

Direct download of the Matroska h264 1280×720 video (47MB)

There’s a video tutorial on how to produce HD video with Luz on the Luz tutorials page.


February 3, 2011

Click for animated gif (6MB):

Made in Luz Studio.

Soon after birth, the Troopa joined LightTroupe, and got along brilliantly.

Luz is an open-source live motion-graphics editor.


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