On Thu,  1 Aug 2002 16:12:08 EDT, "Don Barron" <ani### [at] ukonlinecouk>
wrote:

>I've tried unsuccessfully to make scenes containing a lens focussing a point
>light source show the rays in a scattering medium.  Does anyone have a
>worked example in a pov file to help?

How would you calculate the focal distance of the lens? I know it is
possible, but I don't know how.


Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] vipbg
TAG      e-mail : pet### [at] tagpovrayorg

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