"Bill Pragnell" <bil### [at] hotmailcom> schreef in bericht
news:web.440ee40c31ec8508731f01d10@news.povray.org...
> This is what I've (mainly) been playing with since the last time:
> background. The knots are zero-detail stand-ins, included to give an idea
> of the whole scene, and the sky is unchanged from the last post. The big
> addition is the cloud. I was a little unsatisfied with the empty
> background, so I thought that some kind of skyscape could work quite well.
> Unfortunately, I've not really used scattering media much, so this has
been
> a long journey of discovery!
>
> The clouds are elongated spheroid functions (similar to the spherical
> pattern), but each point on the surface is pushed around by a granite
> pigment function. The distant trefoil is partly inside a cloud, and casts
> long shadows through it. This was an accident of placement, I never
> intended any of the knots to touch the clouds, but it looks really good so
> I think I'll leave it!
>
> Comments are welcome, especially regarding the clouds. I want to make them
> as believable as possible :)
>
> Bill
>
Well done, Bill! I think the clouds are a very nice addition to the scene as
it gives some dimensional structure to the whole. Incidentally, it makes the
flying knots more believable! :-)

Concerning the clouds themselves, I believe them to be quite naturalistic.
Maybe the spherical basic function is shinning through a bit too much? Some
warp might be asked for perhaps? Well, just my own feeling.

Thomas

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