With only 3 weeks between final client sign off and the deployment of a 20 foot multi-touch wall for Aldar Properties at the opening of Cityscape 2008 in Dubai. Globacore a Toronto based Interactive agency worked with NUI Consultant Taha Bintahir in engineering and deployment of a 20x3’ - 4 section LLP wall-installation. LLP stands for “Laser Light Plane” which is a technique of lighting the screen with IR lasers and specialized line lenses. This method was pioneered and actively research within our community and allows for affordable/scalable surface solutions while requiring less complexity in electronics for illumination.

The key components of the setup include about thirty 10mw infrared lasers, 4 firefly MV cameras, 4 Sanyo 4500 lumen projectors, and Blue Ocean acrylic rear projection screens. NUI Group then provided a modified version of Touchlib for blob tracking as well as a media viewer app which was used Flash 10 and the AS3 TouchAPI.  Additionally a java server managed x,y,scale,and rotate properties of all objects on screen to simulate one continuous screen while actually running 4 independent computers and touchscreens. Then the exhibit was created by HUCOM and The Taylor Group.

Thanks to all who made this huge feat possible and we are really looking forward to seeing more LLP used in even larger screens.

Below are some more videos of the screen in use: