I just released a new version of the GLGraphics library for Processing (0.8), which is available for download at the sourceforge page.
This version finally includes all the features originally planned for the library (off-screen rendering, floating-point textures, gpgpu calculations such as particle systems). From now on until the 1.0 release, the idea is to do only bugfixes and minor improvements.
There is also a website for the library.
codeanticode 