On Sat, 2005-05-07 at 10:02 +0200, Peter Karlsson wrote: > On Fri, 6 May 2005, Daniel Phillips wrote: > > > They have a risc processor on the board as well, We won't have that. > > But on the other hand, we have _way_ more gate equivalents. > > Risc processor? Which project is this? The only one I know of is > 'http://graphics.cs.uni-sb.de/~jofis/SaarCOR/DynRT/DynRT.html' > which uses a fpga (don't know which brand)...
AFAIK, there are four FPGA-Raytracing projects out there. The first one is the one you mentioned, the SaarCOR project that has spawned the InTrace company. They are using a Virtex-II 6000-4 FPGA. They can be found at http://www.saarcor.de/ or at http://www.intrace.de/. The latest paper describing there work can be found (as you said) at http://graphics.cs.uni-sb.de/~jofis/SaarCOR/DynRT/DynRT.html. They are no interested in Open Source or in cooperations. I have talked to them at the CeBIT '04 and they were quiet secretive about their work. If you look at their latest paper you may also find that a lot of details are missing which therefore make it impossible to easily reproduce their work. The second one is one from Sanchez-Elez et al. You can find their '03 paper by googling for "Algorithm Optimizations and Mapping Schemes for Interactive Ray Tracing on a Reconfigurable Architecture", which is the title of their paper. Their seems to be no webpage describing their work (or I have not found it). There is what seems to be a related publication "Efficient mapping of hierarchical trees on coarse-grain reconfigurable architectures" published in '04. The third one is by Joshua Fender and Jonathan Rose. Their '03 publication's title is "A High-Speed Ray Tracing Engine Built on a Field-Programmable System". The VHDL source code for that has been made available freely here http://www.eecg.toronto.edu/~fender/ (under "circuit benchmark sets"). The VHDL code is hardly documented and was developed for a two-FPGA board called the "Transmogrifier-3". From my short conversation with Mr. Fender I gather that this project is not right now continued. The forth project is my own ;). I'm doing a PhD in hardware raytracing. I have no publications so far to show for it, but I'd be interested in a cooperation and I'm also willing to open up at least parts of my code. I'd be interested in one of the prototype cards without the OGP core and without the linux driver - the bare card. I have all the necessary development software available. However, time is pressing (as always), so I'd want it ASAP - preferably yesterday. If I could get one soon, I may be able to get University funding, otherwise I'd have to cough up the money myself. If you know of some other FPGA-Raytracing research/project, or if I made a mistake in my description, feel free to inform/correct me. (Note that the SaarCOR project has _lots_ of publications. Everything that has Wald, Schmittler or Slusallek in the author list probably belongs in there.) Cheers, -- Ulf > Raytracing is one of my interest areas with the OGP card. > > Best regards > > Peter K
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