On Thu, 14 Oct 1999 21:31:39 +0300, Vahur Krouverk wrote:
>Ron Parker wrote:
>> However, with Nathan's UV patch (especially if we all pitched in and
>> extended it to the objects that still need it) and the information in
>> the '99 SIGGRAPH paper on tracing Ray Differentials, it could almost
>> work.  It's still a lot of work, and you'd probably want to ignore
>> POVMAN and just start over.
>> 
>Can you point out, in which paper it was? How can I see it? Can You send
>me a copy or if it is not possible (due to copyright), then how can I
>purchase this paper (preferably online, assuming that it does not cost
>me arm and leg). I'm not saying, that I will start implementing of
>shader, I'm just curious. Although...

http://www-graphics.stanford.edu/papers/trd/

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