How to make a DMX light fixture track a moving object?

I’m looking to use touchdesigner for a simple installation, where I have a 5 light fixtures suspending to the ceiling, each pointing towards one of 5 small tables. My intention is to have each light fixture track its table as the table is moved around the space

  • I assume a DMX Moving head would be the best/easiest light fixture for this. Are there any alternatives? (That are maybe a little less bulky?)
  • What are the technologies that could be used for this? I read that RFID could be an option - adding an RFID tag to each table then calculating its position?
  • If using RFID - how would i track each tag and synchronise it each light tracks its own table?
  • Are there any alternative technologies to use instead of RFID?
  • How smooth and fast would the object tracking be?

Any comments, thoughts or experience at all on this topic would be appreciated! Thank you!

Hi @stovbraid,

  • Movinghead; Depending on the space, you might be able to just use projectors for this. Benefit being that you might be able to project a light cone on all 5 tables from the single projector saving on a lot of equipment.
  • triangulating RFID tags in small spaces might be an option - i have no experience with this. Optionally you could look at camera based tracking. You could use a fluorescent sticker on each table to better track it. Sometimes also infrared cameras can be very helpful here.

cheers
Markus