On 13-1-2015 22:08, MichaelJF wrote:
>
> Hi Thomas,
>
> a very nice iso_surface indeed. IMO a bit to regular and there are no gaps.
> Looking at a picture from Cassini I wonder where the different colors of the
> rings come from. There are yellowish parts up to a certain degree of blue. May
> be these colors are only due to perspective and reflections of the planet itself
> since the rings consists of ice to the main part.

Thanks Michael. I can work a bit more on the regularity although when 
you see the Cassini images, the ring build up seems very regular 
overall. Gaps: Note that this is /only/ the B-ring! As I am travelling 
towards the Cassini Division (where the 'Mountains' are) the other rings 
are irrelevant. However, they are easy to add in the isosurface code 
with appropriate difference/union/intersection constructions, or 
individual isosurfaces of course as the rings have different densities.

The colours are indeed puzzling. I suppose they point to differences in 
composition or dust content in the rings. I have not (yet) added that 
but it should be easy to do as an additional semitransparent pigment 
over the ring.
.
>
> BTW: One of your parts looks a bit like an open mouthed (comic like) shark;-)
> Interesting that the iso_surface functions produces such a nice artifact.

I noticed too! Partly a perspective effect.

-- 
Thomas

Post a reply to this message