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"Marc Jacquier" <jac### [at] wanadoo fr> schreef in bericht
news:4203c02f$1@news.povray.org...
>
> LOL wait, I didn't promise I'll fix it
> I had a look at your code
> It is very rich and I didn't understand how the whole works :)
> I didn't dowload the documentation from the wiki page (is .pdf.safe the
> planned extention?)
> But I think implementing the foam depending on the function is not
trivial.
>
That's allright, Marc! If you could fix it, I would be extatic! ;-) But
every little bit of
advice will help. Thanks a lot for taking time to tackle the problem.
I am not sure where the 'safe' comes from. But make it just pdf and it will
be allright.
> A 1st issue, may be: you limit your islands by contained_by boxes but the
> function spreads across space, then so does the pigment.
> To see what it looks like, I replaced the sea isosurface by
> plane {y, 0 pigment {P_img} }
> 2nd issue: It seems your function is not constrained between 0 and 1, so
the
> pigment shows strips as the map folds (as if when the function rises over
1,
> the map resets at 0)
>
Hmm... yes, your first issue is obvious, but I did not realise the
implications of it...
The 2nd issue means in fact that first the function should be constrained
between 0 and 1 before transforming it into a pigment, right? I am not sure
how to do that, but I shall have a look at the documentation and at the
isosurface tutorial of Mike Williams. Perhaps that helps...
> At this moment I see no way to fix that but I'm far from a maths freak.
Neither am I unfortunately :-(
Thomas
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