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From: mrush@csuchico.edu (Matt "C P." Rush)
Newsgroups: comp.sys.amiga
Subject: Re: VSprite Performance - Good or Bad?
Message-ID: <1990Oct03.005843.17737@ecst.csuchico.edu>
Date: 3 Oct 90 00:58:43 GMT
References: <8615@helios.TAMU.EDU> <1470@metaphor.Metaphor.COM>
Sender: news@ecst.csuchico.edu (USENET)
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Organization: California State University, Chico
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In article <1470@metaphor.Metaphor.COM> djh@neuromancer.metaphor.com (Dallas J. Hodgson) writes:
>
>Who's using Gels? Does anybody take Gels seriously? I'm working on a very
>large bitmap-scrolling game, which demands at least a MakeVPort/MrgCop/LoadView
>on every display frame. Add a few simple VSprites and a couple of Bobs and
>you're looking at <40 frames/sec max on an A-1000.
>
>I'm trying to remain OS-friendly here, but only to the extent that performance
>is satisfactory. (sound of the Hardware manual creaking open)

	I'm using GELs, I'm using GELs!  And I even take them seriously.

	The biggest problem I've had is that I'm doing it from the 1.1 RKM's and
apparently the people who wrote the "Libraries and Devices" manual never used
Intuition...  So how much of the MakeVPort/MrgCop/LoadView stuff is needed if
you're doing your GELs on a Screen that you opened through Intuition?

	I've tried cutting a lot of that stuff out and still had my program
work, but I'm not sure that just because it works now doesn't mean it will
continue to work.  And yes, I could get a 1.3 RKM, but I'm waiting for the 2.0
models...

	Also, does 2.0 fix any of the Collision Detection idiosyncracies?  I
finally had to create my BorderLines and CollMasks and because the ones that
were acutally shaped like my VSprites (from InitMasks() and doing the ORing by
hand) didn't detect vertical collisions for certain shapes.....

	-- Matt

    *~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*
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