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Re: Film as Data



13/10/97     6:41 pm    RE>Film as Data
Martin Parsons                   >>>                 The Mill   40/41 Great...

Just getting to grips on this very subject so the following is only a guide !

The .dpx files are transferred out of the Spirit Datacine on parallel HiPPI.
Using the set-up here as an example, they are loaded via an Origin 2000 server
onto disk. 
As the Origin has a serial HiPPI i/p card there is a parallel to serial HiPPI
conversion required. This is done through a HiPPI switch which is minimally
configured to do this conversion and only costs marginally more than a
dedicated parallel to serial HiPPI converter (but obviously has greater scope
for future expansion).
An Origin 200/Onyx/Onyx2 can be used to get the maximum frame data transfer
speed out of the Datacine instead of an Origin 2000.
The data transfer is initiated from a networked SGI O2 which runs
"SpiritView". (It is the same SGI O2 which runs Pandora's Platinum for the
Datacine).
"SpiritView" is Datacine-provided software which controls the data transfer
and gives transfer confirmation via proxy images.
It comes free with the Datacine data o/p package but only allows you to
transfer a maximum of 10 frames - then it stops.
In order to transfer more than ten frames at a time you need to buy the
upgraded version of Spiritview.

Martin Parsons
The Mill


--------------------------------------
Date: 11/10/97 9:26 pm
To: Martin Parsons
From: Rob Lingelbach
Hello all,

Has anyone out there had experience utilizing the Spirit Datacine to
pipe 35mm film directly to DATA rather than to D1/high-def/tape/etc.? We
are shooting some new content for our compositing courses and we want to
transfer our effects elements (blue/green screen, difference mattes,
moco) directly to SMPTE .DPX files on hard disc in order to keep them as
RGB data all the way through our graphics pipleline. It looks as if we
(SGI) may have to provide an Onyx 2 or Origin server in order to keep up
with the bandwidth demands of doing this at any reasonable speed. Is
anyone doing this? Is this insane? Should we be beaten about the face
and head until we come to our senses?

thanks in advance for the info...
and thanks for the great telecine page!


Alan Lasky
Digital Effects Specialist
Silicon Studio Los Angeles 
California
--

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Thanks to Dave Best & Post Perfect for support of the TIG in 1997
HDTV discussion thread is at http://www.alegria.com/telecine/hdtv.txt
TIG subscriber count is 872 on Mon Oct 13 11:18:12 PDT 1997
mailinglist digest available.... unsubscribe via a message to
'telecine-request at alegria.com' with Subject: unsubscribe