> If there are no surfaces or media for the photons to show up on, they
> will only slow things down. They behave like any other illumination.
> Glass usually won't show them, and most metals will only have a slight
> visible effect. If you entire scene is a complex object composed of
> highly reflective metal and completely transparent glass, you will just
> drive up your render time.
> However, if you put that object in a box or on a plane with a mostly
> non-reflective, opaque texture, or use media...
>
> --
Ah, okay. Using it on timber, smoke, etc?

Post a reply to this message