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- Path: sparky!uunet!ukma!usenet.ins.cwru.edu!agate!doc.ic.ac.uk!pipex!logica!oxleyd
- From: oxleyd@logica.co.uk
- Newsgroups: comp.sys.amiga.graphics
- Subject: Re: DMI Editmaster
- Message-ID: <1993Jan24.185855.77@condor>
- Date: 24 Jan 93 18:58:54 GMT
- References: <C1A4B4.F1o@fiu.edu>
- Lines: 38
-
- In article <C1A4B4.F1o@fiu.edu>, freire2a@serss0 (Angel Freire) writes:
- > the editmaster sounds like a dream come true to animators but are there
- > any hidden costs? i.e. it can play back 24 bit sequences in real time,
- > but where are they displayed? does the editmaster have a built-in
- > framebuffer? the output can't just go straight to the vcr... or can it?
-
- I read that you can dock a DMI Vivid24 board with the Editmaster via its 32 bit
- bus. I'm worried that this might be the only way that you can display 25 FPS
- PAL or 30 FPS NTSC at (approaching) video resolution. What worries me is that
- the Vivid looks set to cost about $2700!
-
- I've been trying to figure out how the Editmaster works. Presumably, a cable
- runs between the video source and the Editmaster itself. So it takes a
- video signal as input and does some real-time digitising, which then gets
- compressed on the fly into JPEG frames. The resulting picture files must be
- small enough that the board can write them directly to the hard drive at a rate
- of 25 (or 30) per second.
-
- All well and good. BUT, what about the return trip? The frames get read off the
- hard drive after you've processed them, or for ray tracing, after you've laid
- them down in JPEG format (presumably using the board to do the conversion for
- you). Then they get decompressed on the fly by the hardware JPEG chips...and
- then what? Are they converted back into analogue video and squirted down the
- cable coming out of the Editmaster? Actually, that sounds quite reasonable,
- producing an output of equivalent quality to DCTV, but at the proper frame rate
- ...and then you buy the Vivid24 if you want to record at 24 bit in real time.
- And the Vivid has the capability to run at 160MFLOPS so it's finished your ray
- tracings before you've even told it to start rendering ;)
-
- Hmmmm? Can anybody confirm or deny my musings? A quick tutorial from one of the
- guys or gals at DMI would be nice.
-
- I'd also like to know if it runs correctly on a PAL Amiga at 220/240 volts and
- hasn't just been tested at 110 volts. As Angel Freire says, it looks like a
- dream come true. Let's hope...
-
- Cheers,
- David Oxley.
-