Randy Stiles (stiles++at++ict.atc.lmco.com)
Tue, 12 Jan 1999 15:17:23 -0800
Its possible to use your VR4 for output to a television monitor.
Michael Boccara wrote:
> This is definitely not a Performer-specific question, but I might hope some
> around here have the answer.
>
> I'm using Virtual Research Inc.'s VR4 HMD for an output of my pfProgram. This
> HMD only accepts 640x480 *interlaced* format. The only compliant MCO mode I
> found on our Onyx RE2 is 2++at++640x486_30i. However we'd like to be able to fork one
> of the left-and-right channels onto a desktop screen or a TV.
This is possible to do, its one of the things I really like about the
VR4 HMD.
> I have tried everything :
> - forking one of the the 3-cable RGB output from the MCO board
> - using the SVGA output socket of the VR4's box
If you are doing RGB input into the VR4 converter, then you should
try RGB output for a monitor. There are probably some RGB capabable
_television_ monitors around MIT. You have to have SVGA input before
SVGA output will work for it.
> on many types of screen, among which :
> - SGI screen (Onyx or Indys)
> - some PC screens
> - a TV through a seem-to-be VGA->PAL converter or RGB->PAL converter (actually
> an esoteric box with Harmonic Research Inc. logo on it)
>
> Nothing worked, I cannot get any readable signal...
>
> I'm presuming this may come from the interlaced nature of the video signal,
> which does not seem to be compliant to any of the video displays I've tried,
> except the HMD.
>
> Does any of you have an advice to give me about which screen, converter, or even
> MCO mode I could try to be able to visualize the HMD images on a desktop ?
>
> I hope I was not to ununderstandable in my question :)
> Michael Boccara | boccara++at++mit.edu | (617) 253 0005
> Massachusetts Institute of Technology
> Virtual Environment Technologies for Training
> http://www.mit.edu/~boccara
-- // Randy Stiles mailto:stiles++at++ict.atc.lmco.com O/H143 B/255 // Lockheed Martin Advanced Technology Center 3251 Hanover Street // office: 650.354.5256 fax: 650.354.5235 Palo Alto, CA 94304-1192 // http://205.184.217.100/~vet/
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