> Alain Martel <kua### [at] videotronca> wrote:
> >
> > Have you tried to replace that large sphere with a sky_sphere ? Or even
> > a simple background statement if the pigment is solid ?
>
> Good suggestions. I tried both of those as a substitute for the large sphere--
> and now there are NO bright rad-patch artifacts, in either case!

Well, I spoke too soon. The reason I didn't see any patches-- or any rad/media
interaction at all-- was because my sky_sphere color and emission color were
just too dim to produce them. In my most recent test code posted earlier, use
the sky_sphere at rgb 0.1, and try emission 1*<0.1,1.0,0.1> to see the media
cylinders, then emission 250*<0.1,1.0,0.1> to see the bright patches again.

So that media object being half-embedded seems to be the real problem... along
with rad's 'media ON' switch.

But I find it strange that the sky_sphere produces its own particular radiosity
brightness, versus the enclosing-sphere object imparting its *variable* rad
brightness depending on its size.

A mystery for now.

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