Greg Larson (gregl++at++dayton.sgi.com)
Mon, 14 Jul 1997 10:33:38 -0400
1. A company out of Europe - SEOS Displays, Ltd. builds complete
display systems including hardware distortion mapping for complex curved
screens. (http://www.seos.co.uk/company.htm)
2. The software method is to render your scene to the frame buffer,
then copy that frame back to texture memory and map it onto a geometric
representation of your screen. Equipe Electronics Ltd,
(http://www.equipe.ltd.uk) markets a SGI based SW package which uses
this method and will distort for up to a full dome display system.
3. The high end projectors produced by Hughes-JVC allow for some manual
distortion of the image in their projectors.
The solution you choose really depends on the curvature you are dealing
with (slight cylindrical curve to full dome display) and how accurate
your display must be.
Greg
Bill Storma wrote:
>
> I am looking for any information or help available on how to project
> an image from an SGI machine running Performer/Vega onto a curved
> screen. Since the viewing frustum is (apparently) setup for a flat
> screen, I assume that there must be some compensation made when
> attempting to use a curved screen. However, the books don't seem to
> address this problem. Can anyone help me out on this ??
>
> Thanks
>
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--
**********************************************************************
Greg Larson (937) 258-5247 *
Silicon Graphics/Cray Research * The definition of insanity is
Systems Engineer->VisSim Focus * doing the same thing over and
DoD High Performance Computing * over again looking for
email: gregl++at++dayton.sgi.com * different results. -unknown
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