Alain <ele### [at] netscapenet> wrote:
> Bruno Cabasson nous apporta ses lumieres en ce 2007/09/12 08:19:
> > Well, I seeked the web but not the documentation. It clearly stated in
> > "3.6.2.1.3  Scattering":
> >
> > The scattering effect is only visible when light is shining on the media
> > from a light source.
> >
> > So I re-formulate: how can I use scattering media in a full-radiosity scene?
> > Is it possible? What about the Cornell radiosity example if there is a
> > media-filled box in te room?
> >
> > Bruno.
> >
> Light been scattered by a scattering media will affect the radiosity, if "media
> on" is set.
> Radiosity ray are only affected by the extinction and never illuminate any media.
>
> You can fake it, somewhat, by using an emiting media together with the
> scattering media. Mostly work in relatively simple cases. Good with large
> ambient surfaces "lighting" simple shapes.
>
> --
> Alain
> -------------------------------------------------
> Q. What's the difference between Batman and Bill Gates?
> A. When Batman fought the Penguin, he won.
>                                             -- J. Levine

Thanks for your reply. Waiting for someone to answer, I made a few more
tries and tested the trick with emissive media. I don't find it very
satisfatory in that the object is illuminated, but emits light. In a
radiosity scene, it is preferable to avoid this.

I am trying another idea ...

Bruno

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