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- Newsgroups: comp.sys.amiga.graphics
- Path: sparky!uunet!gatech!nntp.msstate.edu!tacky.cs.olemiss.edu!skip
- From: skip@tacky.cs.olemiss.edu (Skip Sauls)
- Subject: Re: No de-interlacer in the a4000?
- Message-ID: <1992Sep16.040123.17614@ra.msstate.edu>
- Sender: news@ra.msstate.edu
- Nntp-Posting-Host: tacky.cs.olemiss.edu
- Organization: University of Mississippi, Dept. of Computer Science
- References: <35145@cbmvax.commodore.com>
- Date: Wed, 16 Sep 1992 04:01:23 GMT
- Lines: 58
-
- In article <35145@cbmvax.commodore.com> spence@cbmvax.commodore.com (Spencer Shanson) writes:
- >In article <1992Sep15.170052.2727@sol.cs.wmich.edu> 22black@sol.cs.wmich.edu (Martin E. Black) writes:
- >>I can't believe what I heard. I heard there will be absolutely no type of
- >>deinterlacer on the a4000, just the productivity modes that are atainable
- >>in the ecs. That is junk, I meen hell if I want normal hires in interlace,
- >
- >It's only partially true. Whilst there is no deinterlacer on the A4000, you
- >can enable a 'promotion' feature in preferences which will de-interlace all
- >screens opened as the default monitor. In other words, there is a software/
- >chip solution to the problem.
-
- Could you offer more details on 'promotion'? I'm going out on a limb,
- but are the 15KHz modes simply forced into 31KHz modes?
-
- >I admit that it's not the best solution. A deinterlacer would be real nice,
- >but would also add to the cost of the machine. Remember, the A4000 would
- >have to buffer 24 bits of data, the A3000 only buffers 12 bits.
-
- And we all thank you for those extra 12 bits! :-)
-
- >>want it deinterlaced I won't beable to. This is a poor judgement of
- >>Commodore to remove it. Since I have a monitor capable of 50khz and
- >>up to 73hz, I wanted the super72 mode of 800x600 deinterlace. Since
- >>the super72 requires a 25khz monitor it would work great.
- >
- >The A3000 doesn't deinterlace the Super72 modes. Amber passes them straight
- >through.
-
- Will an SVGA monitor handle the Super72 modes? I'd assume that it
- would, but I've not used the modes yet and was curious.
-
- >>I hope the deinterlace car that is out will work with it. After all
- >>there will be lots of productivity programs that will only write for
- >>regular hires and hires interlace.
- >
- >...and with 'promotion' enabled, there is a fair chance they will be
- >deinterlaced. (Personally, with the exception of art packages, I won't even
- >bother with productivity software that cannot work on my workbench).
-
- With 'promotion' enabled, will the half-line flicker be present? I
- realize that this is a small point, but I find it somewhat annoying.
- Also, are the problems with the pointer flickering due to the
- de-interlacer gone?
-
- >>marty
-
- >---------------------------------------------------------------------------
- >Spencer Shanson - Amiga Software Engineer | email: spence@commodore.COM
- > | or uunet!cbmvax!spence
- >All opinions expressed are my own, and do not | Bix: sshanson
- >(necessarily) represent those of Commodore. | "Copper? I hardly even
- > | know her!"
-
- Skip Sauls
- skip@tacky.cs.olemiss.edu
-
-
-
-