In article <389e73ec@news.povray.org>, "Bob Hughes" 
<per### [at] aolcom?subject=PoV-News:> wrote:

> Although I certainly like what you're doing I wanted to ask if this 
> is just plain impossible as a texture pattern type of thing instead 
> of a kind of media sampling method which you are apparently trying 
> out here.

I am not sure what you mean here...this is an ordinary texture, no media 
used. The sampling really has more in common with blurred 
reflection/transparence, it isn't much like media. It shoots rays in a 
hemisphere(so rays are not shot into the object) on the surface of the 
object and returns the percentage of them that hit the object.


> It's the scattered look to the partial places that bothers me, if 
> this were to be considered a patina or similar then a smooth 
> transition zone would probably be considered best. As is at least it 
> could be faked well for more distant or smaller objects.

Using more samples would smooth it out, and there might be ways to use 
the samples other than just calculating the percentage that hit that 
would give smoother results.

-- 
Chris Huff
e-mail: chr### [at] yahoocom
Web page: http://chrishuff.dhs.org/

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