On Mon, 9 May 2005, Ulf Ochsenfahrt wrote:
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.
I've known about them for quite some time... But there doesn't seem to be happening much.
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.
Too bad. Do you know what has happened to their "OpenRT" (OpenGL-like language for raytracing)?
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.
http://www.dacya.ucm.es/marcos/investigacion2.htm ?
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.
Interesting...
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.
Ok, as I mentioned, one of my interest areas is doing raytracing with the OGP, but I am nowhere near to know enough to contribute (as of now); I don't know any HDL-language (yet) and I haven't gotten through my copy of "Realistic Image Synthesis Using Photon Mapping" by H.W.Jensen (I understand the basics of raytracing/photon mapping and some of the math). There is so much to do and so little time...
But I'll gladly help with whatever is within my meager abilities...
Best regards / mfG
Peter K
PS. Not fpga-hardware raytracing but they're from my school: http://www.ce.chalmers.se/edu/proj/raygpu/
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