Path: utzoo!attcan!uunet!lll-winken!lll-tis!helios.ee.lbl.gov!pasteur!agate!ig!uwmcsd1!mailrus!cornell!uw-beaver!uoregon!markv
From: markv@uoregon.uoregon.edu (Mark VandeWettering)
Newsgroups: comp.graphics
Subject: Re: Dark 'gears' output from Mark VandeWettering's raytracer
Keywords: gears.c raytracer Mark VandeWettering
Message-ID: <2798@uoregon.uoregon.edu>
Date: 14 Sep 88 18:30:05 GMT
References: <6574@chinet.UUCP> <251@vixen.uucp>
Reply-To: markv@drizzle.UUCP (Mark VandeWettering)
Organization: University of Oregon, Computer Science, Eugene OR
Lines: 45

In article <251@vixen.uucp> ronbo@vixen.UUCP (Ron Hitchens) writes:
>In article <6574@chinet.UUCP> musashi@chinet.UUCP (Irving Moy) writes:

>>	I tried 'gears' at a size factor of 4 and the resulting output is
>>quite dark.  The background is a nice UNC blue but the gear surfaces are
>>very dark and so is the reflecting polygon underneath the gears.
>>Has anyone else tried to raytrace 'gears' with Mark's program yet???
>>Enquiring minds want to know.....

	To be perfectly honest, I have never run gears at size factor 4.
	I will try to run one soon, but I am using a modified version of
	the ray tracer (which may be available soon) so I don't know
	what it will tell you.

>vixen% ray -i gears.nff -o gears.pic -t
>ray: (9345 prims, 5 lights)
>ray: inputfile = "gears.nff"
>ray: resolution 512 512
>ray: after adding bounding volumes, 10516 prims
>				    ^^^^^
	Oops.  I can see this coming.

>   From defs.h:
>#define MAXPRIMS        (10000)

	Guess I should bump up the MAXPRIMS, and insert some error
	checking code in the parser to figure out if I overrun this
	array.  Sorry guys.

>> (BTW, if you look closely at 'sphereflake',
>> you can see Elvis (recursively, of course)).
	
	Eeeeewww!  Look at the ugly face I drew!

>   To Mark VandeWettering: Hey, thanks for the ray tracer.  I don't suppose
>you could send me a disk drive to store all these picture files on could you?
	
	You are indeed welcome.  The responses that I have gotten have
	all been favorable, so I feel pretty good.  Stay tuned for
	revision 2, which will be better commented, faster, and include
	a bibliography of stuff to read to understand the guts of the
	tracer.

>Ron Hitchens		ronbo@vixen.uucp	hitchens@cs.utexas.edu

Mark VandeWettering