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View Full Version : Making real-life portals with a Kinect



wraggster
May 21st, 2012, 00:23
http://hackadaycom.files.wordpress.com/2012/05/portal1.jpg
[radicade] wanted to know what real life portals would look like; not something out of a game, but actual blue and orange portals on his living room wall. Short of building a portal gun, the only option available to [radicade] was simulating a pair of portals (http://radicade.posterous.com/real-life-portals-using-a-projector-and-a-kin) with a Kinect and a projector.
One of the more interesting properties of portals is the ability to see through to the other side – you can look through the blue portal and see the world from the orange portal’s vantage point. [radicade] simulated the perspective of a portal using the head-tracking capabilities of a Kinect.
The Kinect grabs the depth map of a room, and calculates what peering through a portal would look like. This virtual scene is projected onto a wall behind the Kinect, creating the illusion of real-life orange and blue portals.
We’ve seen this kind of pseudo-3D, head tracking display before (1 (http://hackaday.com/2011/07/02/3d-display-using-a-kinect/), 2 (http://hackaday.com/2012/04/30/multitouch-table-uses-a-kinect-for-a-3d-display/)), so it’s no surprise the 3D illusion of portals would carry over to a projected 3D display. You can check out [radicade]‘s portal demo video after the break.

http://hackaday.com/2012/05/19/making-real-life-portals-with-a-kinect/