Medialab-Prado Madrid, Spain just opened a open call for submissions of processing.js sketches to be showcased in their giant 15x15m media facade. An online tool has created to code directly your sketch online. You can add interaction with the people who walk around the building using the super simple tracking API. Three lines of code and you have your code ready to interact with the people!
You can go directly to the tool here:
The open call will be open until the 10th of February, then from the 11th all the projects will be showcased. We encourage you to have fun using the tool and submit your work.
More info about the open call here: