In article <3dcbd2b8@news.povray.org>, "Hugo" <hua### [at] post3teledk> 
wrote:

> It looks great! The overlapping craters are problematic, but apart from that
> (if you don't mind that I nitpick) I think the craters all have a too
> uniform torus, so they tend to look like ripples in water. To expand the
> formulas with more stuff, I've noticed on Chris's links that some craters
> leave traces around them, sort of ... dust tales in all directions.

The radial spokes? That is an interesting effect...you would have to 
combine a function texture with the geometry (if this isn't already 
done).

One thing I noticed: the craters overlap each other. In reality, new 
craters tend to obliterate the features where they hit, and maybe spread 
debris over parts of surrounding craters...you would see traces of large 
old craters covered by small new ones, or a big new one with only a few 
small marks on it. I don't know how this would be done with a function, 
I'd do it by simulating the craters hitting over time on a mesh 
landscape.

Still, it looks like a very good "cratered landscape", the vast majority 
of people wouldn't notice this or care.

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: chr### [at] tagpovrayorg
http://tag.povray.org/

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