William Sherman -Visualization (wsherman++at++ncsa.uiuc.edu)
Tue, 28 Jul 1998 14:43:15 -0500 (CDT)
> Steve Baker wrote:
> >
> > No - you can't have a 'window' (an X-window specifically) that straddles
> > more than one PIPE (or more than one pfPipe for that matter). There have
> > been cases where multiple PIPES have been used to drive a single video -
> > IIRC, the Disney Aladdin ride did that at one time. It needs some special
> > hardware though.
>
> We have this for ONYX2 now, it was announced at Siggraph.
>
> Reality Monster uses image readback to scale graphics for a single
> channel across multiple pipes but you had to have an application which
[...]
There are two ways I can envision multiple PIPEs being used to
feed a single video output -- temporal interlacing and spatial
division of the frame buffer.
I would guess that temporal interlacing would be easier to
handle, and I understand the old Aladdin ride used temporal
interlacing. Is this the method that the new Onyx2/IR2 does?
Bill
> Cheers,Angus.
-- Bill Sherman VR Coordinator NCSA Virtual Environments Group wsherman++at++ncsa.uiuc.edu======================================================================= List Archives, FAQ, FTP: http://www.sgi.com/Technology/Performer/ Submissions: info-performer++at++sgi.com Admin. requests: info-performer-request++at++sgi.com
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