Alain <kua### [at] videotronca> wrote:

> > "Cousin Ricky" <rickysttATyahooDOTcom> wrote:
> >> "[GDS|Entropy]" <nomail@nomail> wrote:
> >>> Here is an "angry" media sky output from the Sky macro.
> >>
> >> Cecil B. DeMille worthy!
> >
> > Thank you. :)
> >
> > My goal is to build a fairly comprehensive "Environmentals" macro set that is
> > both simple to use and nice looking. Given that they are designed to work
> > together it should take a LOT of the work out of creating natural scenes, and
> > hopefully inspire some scenes.
> >
> > The Rocks macro is coming close to completion, for version 1 at least, and the
> > Terrain macro is close behind it. Next in the set is the Skies and Fogs.
> >
> > The Fog is being a little weird, because Media without a container is only
> > visible when looking at the plane below it, and it vanishes above the horizon.
> > ?! Weeeird. Very counterintuitive.
> >
> > Any idea why this is, and how to fix it? Is the only choice to bound the media?
> > I am guessing that this is because it is not reasonable to calculate media for
> > an infinite space, but I could be wrong.
> >
>
> You are correct on this point. Media sampling can only be computed
> between two deffined points. When you reatch the background, the far
> point is undefined, making the computation impossible.
>
> Solution : Place a background plane behond the scene. Make it no_image,
> no_shadow, no_refection and no_radiosity.
>
>
> Alain

When I tried that, the media disappeared entirely, here is the plane I used:

plane
{
    z,
    100
    no_radiosity
    no_image
    no_shadow
    no_reflection
}

Did I miss something?

Thanks!

Ian

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