Archive for July, 2007

Experiments with clutter

Monday, July 23rd, 2007

A recurring theme at this years Guadec was the need for a toolkit next to Gtk+ for doing some of the next generation fancy effects that Gtk+ isn’t suited to (i.e. things like coverflow). One of the current experimental approaches for this is Clutter. In order to get a feel for clutter and the requirements and usecases for a toolkit supporting fancy effects I started writing a small demo for a fancy version of a gdm greeter. Its basically a fullscreen face-browser in the form of a Rolodex:

screenshot of fancy-greeter

I did all development on a machine without 3D acceleration (way to go ATI! I’ll never buy your hardware again), and it does work with the Mesa software rasterizer, but its really meant to be running on a 3D accelerated machine, and that is where it looks and behaves nice.

If you want to test it out, the code is available via git at http://www.gnome.org/~alexl/git/fancy-greeter.git/ . You need clutter and clutter-cairo from svn too.

As to clutter, It seems very nice. I got a bunch of OpenGL error spew when removing actors errors that I don’t believe is my fault, so it seems to have some bugs, but it was easy for me to hack up this example in a few hours, so the API is easy to use. I’m not completely sold on the animation framework though, it seems a little hard to use. Hopefully with the competition from other projects like pigment we’ll figure out the best API for this eventually.

GVFS presentation slides

Friday, July 20th, 2007

On Wednesday I did a presentation on GVFS at guadec, and a bunch of people have asked me for the slides, so I put them up here.

The talk went ok. There was a bunch of questions during the talk, so unfortunately I had to skip a couple of slides. But at least thats better than having no questions (and thus interest) at all.

Update: pdf version availible