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Thanks for the link. I created a quick Colab Notebook for those without sufficient hardware: https://colab.research.google.com/drive/1J4yeGLk2MRXrD5lOoS5...

With GLIntercept we created an early Augmented Reality prototype with Macromedia Director. We just replaced a certain background texture with the camera stream.

I am doing similar drawings with Sandy Noble's Polargraph (http://www.polargraph.co.uk). How do you keep the liquid chalk flowing? Common liquid chalk pens need pumping over time.

art+com created a massive chalkbot at Jelling Museum in Denkmark: https://artcom.de/en/project/experience-centre-royal-jelling...