Path: utzoo!mnetor!uunet!peregrine!ccicpg!leo!harald
From: harald@leo.UUCP ( Harald Milne)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Fixing flicker, & future frame rate issues
Message-ID: <2972@leo.UUCP>
Date: 15 Apr 88 11:36:43 GMT
References: <11157@ut-sally.UUCP> <8528@agate.BERKELEY.EDU> <11182@ut-sally.UUCP> <11255@ut-sally.UUCP>
Organization: CCI CPD (Advanced Development), Irvine CA
Lines: 26
Summary: The correct terms

> 	It becomes clear to me now that flicker is really being used in two
> related but different ways.  Therefore I propose the following, more precise
> definitions:
> 
> 	Flicker:  A perceived INTERMITTENCE in an ENTIRE image, as in successive
> 	frames interleaved with intervals of 'darkness' (= absence of image).

	For us normal Amiga types, this is called "Non interlaced"
Where alternate "half frames" are absent. That gives us the lines without
information in non interlaced modes.

> 	Jitter:  A perceived MOTION of an image COMPONENT due to PARTIAL
> 	images being interleaved, as in interlaced displays.

	For us normal Amiga types, this is called "Interlaced". It is also
called flicker. You can call it what you like.

> 	Now I claim the following:
> 	-flickerFixer should really be called jitterFixer.

	Call it whatever you like, but for heaven's sake, go away.

-- 
Work: Computer Consoles Inc. (CCI), Advanced Development Group (ADG)
      Irvine, CA (RISCy business!) 
UUCP: uunet!ccicpg!leo!harald