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Thanks Andrew, that 'c' variable was giving me a headache ;) ! I have updated the article with your remarks. BTW, I have listed a few good resources about rayt

• antirez 13y ago
  Some time ago I wrote a raytracing program in javascript that is supposed to be very simple to understand: https://github.com/antirez/jsrt/blob/master/rt.html https://github.com/antirez/jsrt/blob/master/rt.html Demo here: http://antirez.com/misc/rt.html http://antirez.com/misc/rt.html
  • Uchikoma 13y ago
    Nice! We did a real time raytracer with 2 spheres where you could move around one with C and a cluster of DEC Alphas 20 years ago, funny to see this on my laptop in Javascript (!) now.
• a_e_k 13y ago
  You're welcome! Scratchapixel was new to me, so thanks for that link. PBRT (which you already have) is definitely a favorite. You also cited Graphics Gems IV but I enjoy dipping into all of them. Other suggestions: * http://tog.acm.org/resources/RTNews/html/ http://tog.acm.org/resources/RTNews/html/ (Somewhat dead, but the archives are great) * http://ompf2.com/ http://ompf2.com/ (Active, lots of ray tracing specific discussion) * http://www.realtimerendering.com/ http://www.realtimerendering.com/ (I'm fond of the book as well) * http://kesen.realtimerendering.com/ http://kesen.realtimerendering.com/ (Especially the sections for "Symposium on Interactive Ray Tracing" and it's successor, "High Performance Graphics") If I had to pick one, though, it'd be PBRT since it's a unified work that starts from the ground up.