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Path: utzoo!mnetor!seismo!rutgers!dayton!bill
From: bill@dayton.UUCP (William T. Argyros)
Newsgroups: comp.graphics,comp.sys.amiga
Subject: Re: DBW-Tracer on UNIX
Message-ID: <817@dayton.UUCP>
Date: Sun, 3-May-87 21:57:04 EDT
Article-I.D.: dayton.817
Posted: Sun May  3 21:57:04 1987
Date-Received: Mon, 4-May-87 01:41:31 EDT
References: <213@ndmath.UUCP>
Reply-To: bill@dayton.UUCP (William T. Argyros)
Organization: Dayton-Hudson Dept. Store Co.
Lines: 25
Xref: mnetor comp.graphics:599 comp.sys.amiga:4439

In article <213@ndmath.UUCP> milo@ndmath.UUCP (Greg Corson) writes:
>Recently I was messing around with the DBW (AMIGA) ray tracing program on a
>SUN workstation here at Notre Dame.  The main program (RAY) compiles and runs
>just fine here, however there are some things that seem puzzling to me.  The
>documents to DBW tracer state the demo program "glass" runs for about 11 hours
>on an Amiga.  On the Sun with SKY floating point board it ran 14 hours...the
>Greg Corson
>...seismo!iuvax!ndmath!milo

What I done with the Glass.dat pic is to set the 
'resolution' (R line) to 999 hours.  This hase the
effect of telling RAY not to guess any of the pixels.
Set this way, it runs almost exactly 30 hours on my
Amiga.  

The thing I want to do now is move the source to 
our IBM 3090 (got Lattice C for System 370 on it)
and see how much this time drops.
	-Bill

-- 
UUCP: rutgers!dayton!bill               Bill Argyros/1060
ATT:  (612) 375-6651                    Dayton-Hudson Dept. Store. Co.
                                        700 on the Mall
                                        Mpls, Mn. 55402