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 Photo Gallery: the Access Grid used as a tiled display (powerwall
The Access Grid can be used as a tiled display or PowerWall. The VisLab Access Grid uses three tiled projectors yielding an image of 3840x1024 pixels (about 4 MegaPixels). The following videos show interactive graphics displayed on the VisLab AG computers. We are running Chromium, a flexible framework for scalable real-time rendering on clusters of workstations, derived from the Stanford WireGL project code base developed in 1998-2000.

If you do not need or care about displaying stereo images, tiled displays such as the AG offer an alternative to VR facilities at a fraction of the cost: $40,000 for a 3x1 display versus 2 millions dollars.
Note: although most commodity projectors do not have high enough refresh rate to achieve active stereo,  passive stereo can be achieved by doubling the number of projectors and using polarising filters.
 

Use of Chromium on the Access Grid
  Chromium running on the Access Grid used as a tiled display (also known as PowerWall)
» Watch a video (3.3Mb)
Atlantis demo on the Access Grid
  Atlantis running with Chromium on the Access Grid
» Watch a video (4.2Mb)

Acknowledgements

This  work is funded by QPSF and the The University of Queensland.
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Authorised by: Prof. Bernard Pailthorpe SMP/ITEE
Maintained by: webmasters@vislab.uq.edu.au
Last Updated: 2 August, 2006, 7:04pm