Am 24.07.2014 20:51, schrieb jceddy:
> I understand that you can turn radiosity effects for emission media on and off
> in the radiosity block, but what I'm wondering is whether there's a way, if I
> have two objects with emission media, to have the media in ONE object have
> radiosity effects and the other not.
>
> Basically, I have a scene with a blue glow-y media object that uses radiosity to
> light other objects in the scene, but I also want to create some white media
> clouds that *don't* cast light into the scene...

If the object containing the media-to-be-ignored is just a simple media 
containers, it's as simple as specifying "no_radiosity" on the object.

In more complex cases, e.g. if the object also has a semi-transparent 
surface that should affect radiosity, you could use two copies of the 
object: One with the media and "no_radiosity", and one without the media 
and with "no_image no_reflection no_shadow" instead.

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