Am 10.09.2010 06:05, schrieb Slime:
>  > Is that a matter of available time with the current developers, or
> technical
>  > complexity?
>
> I tried to do this feature once, probably with the 3.5 source code. I
> hit a wall. I don't remember what it was, exactly... I think it was
> related to objects storing temporary intersection related data within
> themselves, causing problems if a ray hit an object, and then reflected
> and hit a different version of that same object. It wasn't an unsolvable
> problem, but it was enough to make me give up.
>
> This was a long time ago, though. I may have simply misunderstood the
> code, or not been good enough at C at the time. I also don't know how
> the code has changed since then - it's likely that changes to make it
> thread safe in 3.7 would fix any issue like the one I described above.

AFAIK all such data has been moved to the "Intersection" class by now.

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