Cycle 2 Demo

The demo in class on Wednesday showed the interface responding to 4 scenarios:

1. No audience presence (displayed “away” on the screen)
2. Single user detected (the goose went through a rough “greet” animation)
3. too much violent movement (the words “scared goose” on the screen)
4. more than a couple audience members (the words “too many humans” on the screen)

The interaction was made in a few days, and honestly, I am surprised it was as accurate and reliable as it was…

The user presence was just a blob output. I used a “Brightness Calculator” with the “Difference” actors to judge the violent movement (the blob velocity was unreliable with my equipment). Detecting “too many humans” was just another “Brightness Calculator”. I tried more complicated actors and patches, but these were the ones that worked in the setting.

Most of what I have been spending my time solving is an issue with interlacing. I hoped I could build something with the lenses I have, order a custom lens (they are only $12 a foot + the price to cut), or create a parallax barrier. Unfortunately, creating a high quality lens does not seem possible with the materials I have (2 of the 8″ X 10″ sample packs from Microlens), and a parallax barrier blocks light exponentially based on the number of viewing angles (2 views blocks 50%, 3 blocks 66%… 10 views blocks 90%). On Sunday I am going to try a patch that blends interlaced pixels to fix the problem with the lines on the screen not lining up with the lenses (it basically blends interlaces to align a non-integral number of pixels with the lines per inch of the lens).

Worse case scenario… A ready to go lenticular monitor is $500, the lens designed to work with a 23″ monitor is $200, and a 23 inch monitor with a pixel pitch of .270 mm is about $130… One way or another, this goose is going to meet the public on 12/07/15…

Links I have found useful are…

Calculate the DPI of a monitor to make a parallax barrier.

https://www.sven.de/dpi/

Specs of the one of the common ACCAD 24″ monitor

http://www.pcworld.com/product/1147344/zr2440w-24-inch-led-lcd-monitor.html

MIT student who made a 24″ lenticular 3D monitor.

http://alumni.media.mit.edu/~mhirsch/byo3d/tutorial/lenticular.html