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In article <3A2369CC.60EF88B6@gmx.de>, Christoph Hormann
<chr### [at] gmx de> wrote:
> > Isosurfaces!
> Or maybe blobs would also do for that.
Probably...you could even use trace() or eval_pattern() with the object
pattern to place them automatically.
> As i said in the reply to Josh, that alone would not be that good, at
> least variation of the blob component size according to the normal of the
> objects would be necessary.
Hmm, yes...that is what my snow macro does. I will post a picture soon...
> I also think at some places like the 'N' in 'Snow' some 'surrounding
> observation' would be necessary to avoid the snow overlapping with the
> objects too much (right now i only use one 'trace' per component). Maybe
> some components with negative strength could also help there.
I'm attempting to use 4 additional traces to determine if there is a
sharp edge nearby and avoid placing flakes there. It is actually a bit
similar to the depth-based find_edges post_process filter in concept, I
am about to modify it to use the normal as well.
--
Christopher James Huff
Personal: chr### [at] mac com, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tag povray org, http://tag.povray.org/
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