Am 02.12.2017 um 09:04 schrieb Sven Littkowski:
> On 02.12.2017 00:01, clipka wrote:
>> What do you mean by "illuminate their neighborhood"? Do you want the
>> rings to cast light onto nearby objects, or do you want a glowing "halo"
>> around the rings?
> 
> Hi, thanks for your time. :-)
> 
> I want to cast light onto nearby objects without having to use radiosity
> (I get already a nice illumination with radiosity, but I like it without
> radiosity, too, if possible), but I also want a glow around the objects.

To cast light onto nearby objects, the only alternative to radiosity I'm
aware of would be fill lights (light sources with `shadowless`), but I'd
expect them to be difficult to set up for your use case (you don't want
the ring itself to be illuminated by the fill lights, for instance).

For the glow around the objects, you'll need emissive media.

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