Hi folks,
as small follow-up on the GPU/Open-CL topic from July 2010:
http://repository.tudelft.nl/view/ir/uuid%3A4a5be464-dc52-4bd0-9ede-faefdaff8be6/
has a January 2011 master thesis on "Unbiased physically based rendering on the GPU" which seems to cover some nice details.
-Peter
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