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From: thad@cup.portal.com (Thad P Floryan)
Newsgroups: comp.sys.amiga
Subject: Re: Imagine -> R G B files question
Message-ID: <37580@cup.portal.com>
Date: 5 Jan 91 00:11:35 GMT
References: <37564@cup.portal.com>
Organization: The Portal System (TM)
Lines: 31

amigan@cup.portal.com (R Michael Medwid) in <37564@cup.portal.com> writes:

	I am currently writing out some scenes in Imagine to RG&B files.  
	The files are 1280 x 1024 in resolution.  My question is, for a 
	monitor with square pixels, what would be the appropriate aspect
	ratio?

1280/1024 = 5/4; thus the files' aspect ratio is 5:4.  Is that really what
you meant to ask, though?  Don't you want, for example, to preserve the
circularity of circles?

	Qustion #2..the machine I'll be displaying this on is a Hewlett
	Packard unix based workstation with display hardware to support the
	above rendered files..does anyone know of a unix utility publically
	available for displaying rgb files?  Source code would be preferable
	in order to make any needed changes.

Knowing the HP model and graphics adapter would help (i.e. HP9000/300 series,
with or without radiosity accelerator card, etc.).  Probably your best bet is
Jef Poskanzer's ``pbmplus'' package which converts to/from most common graphics
formats and is available in source form; I believe this package accompanies
the standard "X" distribution from MIT (and, thus, is available at most archive
sites (e.g. uunet.uu.net, tut.cis.ohio-state.edu, etc.)) but pbmplus is also
available at ftp.ee.lbl.gov (IP 128.3.254.68).  If you have the HP system, it
should have been accompanied by display software with which one of the several
pbmplus conversions should be compatible.

If you still have difficulties, you might try reposting your questions to
comp.graphics.general for more help.

Thad Floryan [ thad@cup.portal.com (OR) ..!sun!portal!cup.portal.com!thad ]