Re: real-time video in texture memory

New Message Reply Date view Thread view Subject view Author view

Wade Olsen (wade++at++fnord)
Wed, 1 Jun 1994 15:36:37 -0700

On May 25, 6:54pm, Kim Michael Fairchild wrote:
> Subject: real-time video in texture memory
> Hi,
>
> Is it possible to get video into texture memory on a reality-engine? I
> would like do something like you see in "the 7th guest" cd-rom game,
> so I would like to be able to take a video source and "play" it into a
> texture.
>
> possible?
>
> thanks, Kim.
>
>
>
>-- End of excerpt from Kim Michael Fairchild

Yes. How depends on where the video comes from:

If the video comes from an external source (e.g. a camera, vcr...) and you
want brodcast quality video resolution, then the Sirius board is what you
want. Video can be read from a source, change color spaces (like betacam
-> rgb), and load directly into texture memory.

If the video comes from memory, like little animation sequences, then no
extra hardware need be purchased. There are two demos that show this
effect. "tele" shows digital video effects applied to video from Sirius,
memory and disk. "camcorder" shows a model of a camera with a working
view finder. The view finder texture is updated everyframe and shows
whatever the camera is pointing at. Pester your sales rep if you want to
see this work. The relevant GL man pages are: texdef2d (use the
FASTDEFINE token) and subtexload. For performer, see: pfTexFormat,
pfGetGLHandle.

Wade

-- 
-------------------------------------------------------------------------------
Wade Olsen, wade++at++sgi.com, 415-390-1023, Silicon Graphics Computer Systems

New Message Reply Date view Thread view Subject view Author view

This archive was generated by hypermail 2.0b2 on Mon Aug 10 1998 - 17:50:18 PDT

This message has been cleansed for anti-spam protection. Replace '++at++' in any mail addresses with the '@' symbol.