A forest of trees created from a drawings by David Stein.
Particle effects that mimiced the dancers movement.
Particle effects that just fly across the screen
In order to accomplish this, I wrote a piece of software that would do the animation and handle tracking the dancers. There were two versions, the first version was used to perform a few times. Notably Dance+ in 2012 and as part of Experimental Half Hour XXXVII. It consisted of the following pieces:
Cinder, used as a framework
Freenect, used to interface to the Microsoft Kinect.
Control, used to control the software from an iPad
This version worked ok. Before I started using Control, I had been triggering all of the sequences with keyboard commands. It worked fine, but I had to have a cheatsheet that told me what keys did what. Also, each command just mutated the state of the program, so if you triggered things in a different order you’d end up in different states. This made some rehersals hard, because it was difficult to return the graphics to a previous state. However, with Control, it became easier to use the software. bobbevy performed in Milwaukee without me and was able to use the software just fine! For Dance+ the Kinect refused to work in the studio, I think because the temperature in the room was so high. So I ended up “drawing” the dancers with a multi-touch interface in Control.
For the particle effects that followed the dancers, I ended up using blob tracking and distingugishing blobs based on distance away from the Kinect. I liked the stateless design because the dancers would move in and out of view of the Kinect and I feel that keeping track of them properly would have been a nightmare. This created some surprising benefits though. The swarms move between the dancer when their relationship to the Kinect changes and it created some really nice animations. Also, this piece has a lot of tension between the dancers and the particles ended up expressing some tension when the dancers were about the same distance away from the Kinect.
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Every Tuesday is Art Tuesday here at Adafruit! Today we celebrate artists and makers from around the world who are designing innovative and creative works using technology, science, electronics and more. You can start your own career as an artist today with Adafruit’s conductive paints, art-related electronics kits, LEDs, wearables, 3D printers and more! Make your most imaginative designs come to life with our helpful tutorials from the Adafruit Learning System. And don’t forget to check in every Art Tuesday for more artistic inspiration here on the Adafruit Blog!