Sven Littkowski <I### [at] SvenLittkowskiname> wrote:
> Hi wonderful POV-Ray community citizens,
>
> here is again a new question that came up while working for a customer
> of mine.
>
> I have a blob item, irregular shape. Creating the general shape that I
> need, is not my problem. But I need to know, how to "destroy" the
> surface in a way, that it looks porous like seen in the attached photo.
> Can this be done with a special NORMAL statement? If so, how would such
> a statement look?
>
> Or if it is a function, then I need full assistance as i am not good
> with functions.
>
> Please advise, big thanks in advance.


Hi Sven,

look at the code given by Tek -
http://news.povray.org/povray.binaries.images/thread/%3C487a8fb0%40news.povray.org%3E/
..

You can use the pigment as an pigment_pattern in a normal statement.
Code is very flexible dependent on the color_map you use in the pigment_pattern.
I showed some examples in this thread -
http://news.povray.org/povray.binaries.images/thread/%3Cweb.569134bed4c0a323b221960d0%40news.povray.org%3E/?ttop=418382
&toff=250
..

Norbert

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