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Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!lll-winken!lll-lcc!pyramid!cbmvax!jesup
From: jesup@cbmvax.UUCP (Randell Jesup)
Newsgroups: comp.sys.amiga.tech,comp.sys.amiga
Subject: Re: Fast 2-D Scrolling Method Needed (kinda long)
Keywords: vague ideas
Message-ID: <6282@cbmvax.UUCP>
Date: 15 Mar 89 04:23:18 GMT
References: <112@dg.dg.com> <10871@well.UUCP> <113@dg.dg.com> <10921@well.UUCP> <736@cord.UUCP>
Reply-To: jesup@cbmvax.UUCP (Randell Jesup)
Distribution: na
Organization: Commodore Technology, West Chester, PA
Lines: 17

In article <736@cord.UUCP> nsw@cord.UUCP (Neil Weinstock) writes:
>	Question #1:  Can the copper reload just the bitplane pointers
>	    quickly enough to avoid blank scan lines between slices?  If not,
>	    then we're hosed.

	I dunno.  Try it.  It may depend on bitplanes/resolution.

>So, the end result is that you have created a circular queue of display slices
>which allows the display memory to be run like a treadmill.  The height of each
>slice would determine how long you have to create the off-screen slice, but
>also how much you have to create.  Optimal size would depend on the
>application.

	Sounds neat.

-- 
Randell Jesup, Commodore Engineering {uunet|rutgers|allegra}!cbmvax!jesup