This is an old revision of the document!
Ai Example
Moving Screens
The background of a stage is formed of screen segments, each hung from Artnet controlled winches. Ai calculates position and rotation of each segment, and maps the contents accordingly.
by: | Sebastian Beutel, January 2016 |
---|---|
published: | here |
tested in version: | Ai v8 |
download: |
Hint: click the images to show them larger.
Background
This project was done for a friend of mine who is the lighting designer for one of Germany's most well-known comedians. He designed the stage elements and wanted to use Ai to map on the moving segments. This project was used on tour for more than a year.
The background of the setup is formed from a number of segments, each a flat surface of approx. 1 x 2 meters. Five such segments are hung from the rig, each with 3 Artnet-controlled winches. Per segment there is one winch for the top/left corner, one for the top/right corner, and one for the bottom-center point, this winch being suspended more upstage. With the winches in such a setup it is possible to hoist the segment, and to rotate and/or tilt it (within limits). The winches used in this setup feed their current position back via Artnet - and these data are used by Ai to calculate the current position and rotation of each segment. Likewise, more such segments were standing on the ground, on Artnet-controlled rotators, which also fed their current position back. This way it was possible to map contents onto the whole surface.