Hi everyone, and many thanks for all your input, truly appreciated.   I should have mentioned this is a research project, more a case study regarding the bidirectional communication between systems than a performance itself.  The goal is for us to study and understand the possibilities (and “less possibilities”) to use our systems for expressive movement analysis in performing arts, and the idea of body mapping was just a “small” extra we added to increase our enthusiasm with the experience.  I agree with what @mark_m mentioned, that if we limit our ambition and keep the project simple we’ll be able of getting something reasonably convincing.  Also going to watch the tutorial on infrared tracking, thanks for that @mark.  This topic is getting quite interesting I have to say, please feel free to keep the discussion happening, as new ideas may arise from it.  Regards to you all from sunny Portugal