Ken wrote:
> 
>   Thank you for your replies to my questions. In regards to the
> term caustics as used above I have one more little question.
> With the photon patch is it necessary to use the caustics interior
> modifier for the caustic reflections ? It doesn't seem likely to me
> but I have not heard explicitly one way or another on the this and
> would like a clarification for sake of proceedural accuracy.

The 'caustics' keyword will have no effect on photon mapping.

-Nathan

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