hi,

"AndreyG" <nomail@nomail> wrote:
> Hello Bald Eagle,
> Thank you for your comments, this might be of interest only if I manage to model
> physically realistic optical scenes. According to laws on physics, geometrical
> optics in particular.
> So far it does not look like it maybe because I am not using it correctly?

see this discussion concerned with .. optically realistic, includes code:

<http://news.povray.org/595f7b16%241%40news.povray.org>

hth.

> If I specify beamwidth of certain angle it should result in spot of light of
> certain size at certain distance. If angle is changes size of the light spot
> should change.
>
> So far I do not see it in my models.


regards, jr.

Post a reply to this message