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000035_owner-lightwave-l _Wed Jul 6 10:03:33 1994.msg
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Received: by mail.netcom.com (8.6.8.1/Netcom) id JAA23317; Wed, 6 Jul 1994 09:34:11 -0700
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Date: Wed, 6 Jul 1994 09:11:53 -0700 (PDT)
From: Eric Cosky <n8642420@animal.cc.wwu.edu>
Subject: Reasons to store Z-buffer
To: lightwave-l@netcom.com
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I think that storing a Z-Buffer in another file (or IFF chunk in the 24-bit
output) would be very useful even if the edges aren't antialiased. It seems to
me that if I had an animation stored on disk that I could quickly squeeze 2d
images between (not intersect) objects within, then I would be able to insert a
client's logo into the middle of an animation with stuff moving not just in
front or behind (this can be done today), but with objects moving from behind
the 2d image to in front of it. The ideal Z-Buffer composition program would
be able to read IFFs and allow the user to assign a Z-Depth to those IFFs that
didn't have a ZBUF chunk before compositing the different ILBMs based upon the
Z-Buffer or Z-Depth.
Just some thoughts.
- Eric Cosky n8642420@animal.cc.wwu.edu
Software algorithms are mathematical procedures.
You cannot patent mathematical procedures, we SHOULDN'T PATENT SOFTWARE!
I don't want MY email/ftp/www/gophers recorded, do you? Abort Clipper NOW!
On Tue, 5 Jul 1994, Stuart Ferguson wrote:
> [Chris describes Z-buffer compositing.]
>
> How do you antialias edges between new objects and objects intersecting
> them in the Z-buffer?
>
> - Stuart