"statto" <nomail@nomail> wrote:
> Explaining why might make my question clearer: some friends and I were
> discussing what it would look like if you could take a film with a camera so
> fast that you could watch the progress of light across a room. I want the light
> to ooze slowly out of the lights and over objects, and so I want to terminate
> any ray which is longer than a distance ct, where c is the speed of light and t
> the (short!) time since the start of the film.

I suggested a while back that a "speed_of_light" parameter be added to povray,
and the response was rather negative due to the required modeling of
relativity.

-Mike

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