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C-Ray Simple Raytracing Tests http://www.futuretech.blinkenlights.nl/c-ray.html By: John Tsiombikas <nuclear()siggraph.org> Test suite compiled by: Ian Mapleson <mapesdhs()yahoo.com> Last Change: 10/Apr/2008 C-Ray is a simple raytracer written by John Tsiombikas; in his own words, it is: "...an extremely small program I did one day to figure out how would the simplest raytracer program look like in the least amount of code lines." The relevant discussion on Nekochan is at: http://forums.nekochan.net/viewtopic.php?f=3&t=15719 The default data set is very small, so C-ray really only tests the pure floating-point (fp) speed of a CPU core (or multiple CPUs/cores using the threaded version), ie. RAM speed is not a significant factor. John said: "This thing only measures 'floating point CPU performance' and nothing more, and it's good that nothing else affects the results. A real rendering program/scene would be still CPU-limited meaning that by far the major part of the time spent would be CPU time in the fpu, but it would have more overhead for disk I/O, shader parsing, more strain for the memory bandwidth, and various other things. So it's a good approximation being a renderer itself, but it's definitely not representative." Nevertheless, the results are certainly interesting: http://www.futuretech.blinkenlights.nl/c-ray.html If you wish to submit your own results, follow the instructions given below. Send the data to me, not to John, and I will add them to the relevant tables; please include all requested details. Comments and feedback welcome! Ian. mapesdhs()yahoo.com sgidepot()blueyonder.co.uk http://www.futuretech.blinkenlights.nl/sgidepot/
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