http://processing.org
Processing is an open source programming language and environment for people who want to create images, animations, and interactions. Initially developed to serve as a software sketchbook and to teach fundamentals of computer programming within a visual context

I have helped the processing team to iron out OpenGL/ES bugs and have now compiled a preview build of processing-2.0a5 with working GLES2 support.
This version uses the nvidia-tegra beta opengl-es drivers out of the box for all "P3D" sketches.
The opengl-es support are based on JogAmp JOGL 2.0rc6+git.

Installation:


known limitations:
video, serial and android mode are not fully included in this preview build, mainly to reduce download size.

Includes a lot of nice examples and documentation.
Cheers
Xerxes

I'm trying to get Processing working on a Raspberry Piand was forwarded to this post. I downloaded your code and I'm very impressed that it works despite it not being the target platform, although I've not tested it completely.

I'm particularly interested in the OpenGL/ES stuff for a project I'm keen to move to the Raspberry Pi and am interested in your opinions regarding optimisations for the RPi hardware. Supposedly the GPU is quite powerful and it would be great to be able to use that and spare the CPU, which is relatively low spec.

Finally, do you have instructions on how to build the latest processing alpha with GLES support?

Thanks very much for providing this build of processing.

This discussion would be better to be hosted on the raspberry pi website. In short Processing and JogAmp JOGL 2 currently work on the Pi using the mesa libGL/libEGL software rendering only. By default processing and JogAmp JOGL 2 require a GLES driver with full xorg support like on the TrimSlice in order to work using hardware acceleration out of the box. You will need to implement a new Pi specific "NEWT" driver inside JogAmp that support the Broadcom libEGL flavor, actually I am working on this NEWT driver part, OR wait untill Broadcom adds full xorg support to their drivers.

I try to maintain a list of currently supported GLES drivers on the JogAmp wiki: Is my OpenGL ES driver supported by JogAmp? - OpenGL ES Driver compatibility matrix. You can help me complete this list by running the following on your board:
and send me the generated test.log and test_dbg.log files.


The following lines of code should get the latest processing 2.0 alpha 6 running with GLES support on a TrimSlice. This will insert the latest JogAmp JOGL 2 rc8 release with pre-builtin ARM support into the processing modes/java/libraries/opengl folder :


If you want to build processing from source then simply follow the build instructions at: http://code.google.com/p/processing/wik ... structions you do not need to add any GLES specific bits to the codebase since the latest processing sources already support it, also all GLES driver specific parts used by processing is handled inside JogAmp JOGL 2.

Xerxes, I realize you are providing a community service and if you do not have time to answer my question, I understand.

When I load processing on to the pi using your instructions above, I keep running into snags. I am trying to load processing 2.06a

I think I have the complete processing package extracted and plenty of space( repartitioned the 16GB sd). I run thru the following procedure.

wget http://processing.googlecode.com/files/ ... -linux.tgz
tar zxvf processing-2.0a6-linux.tgz
cd processing-2.0a6/modes/java/libraries/opengl
wget http://jogamp.org/deployment/jogamp-cur ... atforms.7z
7z x jogamp-all-platforms.7z
mv jogamp-all-platforms/jar/*.jar .
cd ../../../..
./processing

When I go to load processsing at the very last step I keep getting a java syntax error with the following path:

/home/pi/processing-2.0a6/java/bin/java: 1: Syntax error: "(" unexpected

any ideas? Done some searching on the processing forums, but not finding much

Thanks!

I forgot, the prebuilt processing-2.0a6 archive contains a x86 Oracle JDK.
/home/pi/processing-2.0a6/java/bin/java

you need to move this java folder away since its not designed to run on the pi at all.
try:
cd /home/pi/processing-2.0a6/
mv java java-x86
./processing

It should then find and use your system installed openjdk in /usr/lib/jvm/java-6-openjdk-armel automatically.
Hope this helps.

that did it thanks!

You need to update the debian apt-get cache.

run

to let debian download a current list of available .deb packages.
After apt-get update is complete then running
sudo apt-get install openjdk-6-jdk p7zip-full should work fine without hitting any 404 errors.