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It's just my opinion, but I think this is the most important advance in ray tracing in the last decade. Congratulations! And thanks for sharing.

From an EETimes article: The 16-core version would deliver 26 GFLOPs, and the 64-core version could provide 90 GFLOPs—a significant leap over alternative boards such as Raspberry Pi. That would put the 64 core version roughly equivalent to an Ivy Bridge Core i7. Porting programs to the Intel chip is...

Guys, what you would say about implementing edge diffraction in path tracer? Useless crap? ;) http://mail.phys.ncku.edu.tw/optics/technical/commerical/tracepro/others/edge-diffraction-1999.pdf From this paper, it appears that at least the folks at Lambda Research have thought seriously about implem...

It looks as if the problem is that you are not correctly interpolating the surface normal. Look at a triangle in the debugger and make sure that the surface normals at the three vertices are different. (With the orientation of triangles in your picture, two of the three should be identical and the o...

@igneus: Extended technical report? Are you referring to something other than the ACM ToG preprint? If so, where is it?

Stover's book is not cheap ($70 US), but it is available here http://www.amazon.com/Optical-Scattering-Measurement-Analysis-Monograph/dp/0819477761/ref=tmm_pap_title_0 and here http://spie.org/x648.html?product_id=834142 . I just found that it's also available as an ebook for $60 US here http://www....

That's the reason I ask. In microfacet BRDF models, the normal distriibution function should be normalized to retur the full reflected light when integrated and a lot of the popular distribution function do. But the masking and shadowing was introduced by Torrance & Sparrow because the distribution...

I'm getting more and more interested in the ABC BSDF model. What is the transition angle? Also, Is the ABC a full BSDF model or only a distribution density function that needs an additional masking/shadowing factor and a Fresnel factor? The transition angle is defined in the paper by Pfisterer link...

@ypoissant: Nice article! I had not seen that one before. If you want background on the ABC BSDF, look for papers by Palasantzas. An earlier one in Physical Review B is "Roughness spectrum and surface width of self-affine fractal surfaces via the K-correlation model" I can't remember if I found it o...

Hi, does anyone know where I could find some informations about the ABg BSDF Model? I remember a discussion back on the old ompf but since that site is down I can´t find it anymore. Thanks What kind of information are you looking for? Pfisterer's article gives the equation and some guidelines for t...