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From: miner@ulowell.UUCP (Richard Miner)
Newsgroups: net.micro.amiga
Subject: Re: Making a screen invisible
Message-ID: <671@ulowell.UUCP>
Date: Wed, 15-Oct-86 22:42:45 EDT
Article-I.D.: ulowell.671
Posted: Wed Oct 15 22:42:45 1986
Date-Received: Thu, 16-Oct-86 22:30:15 EDT
Reply-To: miner@ulowell.UUCP (Richard Miner)
Organization: University of Lowell
Lines: 20


In article <776@oswego.UUCP> pacs4900@oswego.UUCP (Mark Reichert) writes:
> Does anyone know how to make a screen not be displayed? I have a program
>( it runs for n hours ). It is a 4 plane hires interlaced, and I don't really
>need to see it as it runs.

Mark, why don't you just do your rendering directly to a file?  This would
not use any system memory for the image.  Since it sounds like it takes quite
a while to render each pixel you could open the file and append each pixel
as it is calculated.  If you really want to render the image in a bitplane, 
if for instance new pixel values are somehow dependent on previous pixels,
you can build your own bitmap and render into that.  Look into the 
AllocRaster command.  Then you can save this and or use one of the blt
routines to blit the bitmap to a hires interlaced rastport.

UUCP: !wanginst!ulowell!miner    Rich Miner
ARPA: miner@ulowell.CSNET        University of Lowell, Comp Sci Dept
TALK: (617) 452-5000 x2693       Lowell MA 01854 USA
HAL hears the 9000 series is not selling. "Please explain Dave. Why 
aren't HAL's selling?"  Bowman hesitates. "You aren't Amiga compatible."