"Christian Froeschlin" <chr### [at] chrfrde> schreef in bericht 
news:489eca63$1@news.povray.org...
>
> Oh, I puzzled the master. Wat een eer! ;)

<grin>

> Actually, I just wanted to make a bumpy sphere by subtracting
> f_sphere - f_leopard. However, as I neglected to normalize the
> input coordinates for f_leopard to the sphere surface, the
> 3D-ness of the leopard pattern caused disconnected blobs to
> rise from the surface. As this would obviously fall apart on
> its own (abstract or not), I encased it in a glass sphere,
> which also distorted the view a bit due to the ior. As it
> was so sphere-ish, I used the CGSphere environment, which
> didn't have anything to reflect except the ground plane
> so the glassiness is a bit lost on the upper half.
>
> And because this object is full of shadows I had to use a
> bit of radiosity but was not patient enough for quality. It
> took about 40 minutes on a P4 with just Radiosity_Debug.
> I made the texture itself a bit less rougher so the
> artefacts would not scream out quite so loud ;)

Thank you indeed for your info. Interestingly this makes for an intriguing 
object that partakes of 2D and 3D at the same time. Very nice!

Thomas

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