Ray tracer results

So far, nine ray tracers have been submitted, five of which have accompanying web pages:

Elliot Berk and Peter Creath:
Portray
Bryan Respass and Rob Woollen:
Raygun
Ian Buck and Rob Jensen:
NetherRay
Tassos Viglas and Aaron Lee:
Stevie Wonder
Ken Turnbull and Tom Sanocki:
Raytracer
Jeffrey Goldberg and Jonah Bossewitch:
Celray, Dr. Brown's "Celery Flavored" Tracer (690K ppm file)
Ian Sachs and Mike McCabe:
Rayzap (196K ppm file)

For the remaining four I just have the names (remember that "a cool name" got you 0.5 point extra credit :-):

George Karakostas and Kostas Tsioutsiouliklis:
Bob
Jing Li and Alexey Lvov:
Raytracer

But seriously, if you haven't yet submitted a URL of a page with "your favourite picture", and a picture of a raytraced mountain, please do so.

Timing results

Just to annoy you, I sent out e-mail about extra credit for speed. Sorry about that. I did time your programs on a testfile with two spheres and three triangles, 600x400, 100 MHz SGI (all programs were compiled with -O2). The file had all the required features, plus a spotlight and transparency.

With reflection & transparency:

Elliot & Peter: 62 seconds (76 seconds with antialiasing)
Ian Buck & Rob Jensen: 81 seconds (93 seconds with 5 different procedural shaders for the 5 objects)
Jonah & Jeffrey: 101 seconds
Ken & Tom: +/- 4 minutes (with octree enabled)

With reflection only:

Tassos & Aaron: 56 seconds
Ian Sachs & Mike: +/- 10 minutes

Without reflection:

Ian Sachs & Mike: 56 seconds
Bryan & Rob Woollen: 110 seconds
George & Kostas: +/- 6 minutes

The remaining programs could not be timed.

More useless stats

On the size of your submitted source code (not counting algebra3.cc and Tcl related stuff):

   0 - 1000: *
1000 - 2000: *
2000 - 3000: *
3000 - 4000: ***
4000 - 5000: *
5000 - 6000: **

CS426, CS Department, Princeton University

Last modified: Thu Dec 12 18:11:23 1996