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- Path: sparky!uunet!gatech!mailer.cc.fsu.edu!sun13!well.sf.ca.us
- From: rms@well.sf.ca.us (richard marlon stein)
- Newsgroups: comp.graphics.research
- Subject: Re: comp.graphics.research
- Summary: Analog I/O ain't the problem.
- Message-ID: <11566@sun13.scri.fsu.edu>
- Date: 17 Dec 92 17:17:23 GMT
- References: <11561@sun13.scri.fsu.edu>
- Sender: news@sun13.scri.fsu.edu
- Organization: Whole Earth 'Lectronic Link
- Lines: 39
- Approved: murray@vs6.scri.fsu.edu
- X-Submissions-To: graphics@scri1.scri.fsu.edu
- X-Administrivia-To: graphics-request@scri1.scri.fsu.edu
-
- In article <11561@sun13.scri.fsu.edu> chrisg@cbmvax.cbm.commodore.com (Chris Green) writes:
- >
- > Has anyone ever attempted to take advantage of the
- >"infinite-frame-rate" of raster scan devices, particularly video?
- >What I mean by this to render your animation with the knowledge
- >that each pixel is (for instance) 35ns later than the preceeding
- >pixel, and that each scan-line is ~63uS later than the preceeding
- >one. Given appropriate temporal filtering, and a general enough
- >4-d ray-tracer, shouldn't this provide a potential for improved
- >quality? Is anyone familiar with any research or applications
- >of this? I'm familiar with Don Mitchell's paper on interlace
- >and chroma filtering for video.
- >
- >
- >--
- >Moderated by SCRI Vis <> Submissions to: graphics@scri1.scri.fsu.edu
- >Guy, John R. Murray <> Administrivia to: graphics-request@scri1.scri.fsu.edu
-
- Try muxing the outputs from 1000 framebuffers into a single analog stream.
- I would rather pass on this approach. The PixelFlow box captures the output
- from a composition network rated at 4 Gbytes/s into a single frambeubffer.
-
- I don't believe this approach is truly scalable either, since its still
- an example of the N to 1 mux problem. So it is, in my opinion, contention
- limited (the laws of physics won't cooperate and provide infinite digital
- bus or network bandwidth).
-
- I advocate a tessellated display approach myself, where each tessellation
- element owns a processor, framebuffer, and display. The trick is to coordinate
- the system temporally. The scalable concurrent visualization system trades
- contention for asynchronous execution.
- --rick
- --
- Richard Marlon Stein, Internet: rms@well.sf.ca.us
- To those who know what is not known; The Chronicles of Microwave Jim!
-
- --
- Moderated by SCRI Vis <> Submissions to: graphics@scri1.scri.fsu.edu
- Guy, John R. Murray <> Administrivia to: graphics-request@scri1.scri.fsu.edu
-