"tutki" <nomail@nomail> wrote:
> I have an old povray scene that I'm trying to tidy up, and one of the things is
> to optimize rendering times by reducing the number of light sources. Currently
> there are 44 point lights, which I think it probably excessive. Most of them are
> inside background objects (multistorey buildings in the background), and
> probably could be gotten rid of?
>
> What are some general guidelines on optimizing light sources in a povray scene?
> Is there some trick I could use to retain approximately the same look but with
> less light sources (or with better rendering performance)?  Does povray optimize
> away faraway fading light? E.g., if a background building is far away then only
> objects close to it would involve that light source, but other objects in the
> scene would skip that light source?

I think what you are needing is light groups.
3.4.4.2 Light Group in the help file
Have Fun!

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