"Bald Eagle" <cre### [at] netscapenet> wrote:
> "Samuel B." <stb### [at] hotmailcom> wrote:
>
> > I'm thinking that for complex objects, triplanar mapping might be the best thing
> > to use. (Triplanar mapping in POV-Ray would probably use 3 nested slope maps,
> > with each axis getting one planar map). There /is/ a blending issue when using
> > triplanar mapping, but it can be mitigated somewhat. It's one of those things I
> > haven't gotten around to yet (I was going to use something similar to depict
> > claymation-style fingerprints on objects), but if I make any headway I'll post
> > it.
>
> I was _just_ reading this article ... last night, in fact.
> At work.
> Because I had gotten all of my work done already.
>
> :D
>
> http://iquilezles.org/articles/biplanar/

Hmm, I seem to remember seeing something about that before. I haven't looked at
the code very closely, but using two texture samples instead of three seems a
bit like magic. I wonder if it's more expensive than doing it the standard
way...

Sam

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