I think you can make such ridges by adding a black and white color map ti
the crackle item in the isosurface defiistion! Try something like:

color_map {
    [0.0 color rgb 0]
    [0.3 color rgb 0.3]
    [0.3 color rgb 0]
    [0.4 color rgb 0]
    [0.4 color rgb 0.4]
    [1.0 color rgb 1]
}

You get the idea...

Simen.

>    Right. I did this when I moved on, but I wish I could have made those
>cool ridges on purpose 8-)...
>

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Bill DeWitt wrote:

>     Translate what? The isosurface function?

I didn't know that was standard English. Well well, I just learned a new
word :-)
According to m-w.com, though, it's ad nauseam.

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"David Fontaine" <dav### [at] faricynet> wrote :
>
> I didn't know that was standard English. Well well, I just learned a new
> word :-)
> According to m-w.com, though, it's ad nauseam.
>

    Oh... got ya. As for the spelling... It wasn't in my spell checker and I
figured it was close enough.

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On Wed, 12 Apr 2000 22:31:56 -0500, David Fontaine <dav### [at] faricynet>
wrote:

>According to m-w.com, though, it's ad nauseam.

Yup. Ablative (of circumstance) for the first person feminine.


Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] usanet
TAG      e-mail : pet### [at] tagpovrayorg

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On Thu, 13 Apr 2000 22:36:50 +0300, Peter Popov <pet### [at] usanet> wrote:

>On Wed, 12 Apr 2000 22:31:56 -0500, David Fontaine <dav### [at] faricynet>
>wrote:
>
>>According to m-w.com, though, it's ad nauseam.
>
>Yup. Ablative (of circumstance) for the first person feminine.
>
Wow! I thought that was the word for those tiles they put on the outside of
re-entry vehicles.
David
----------------------------
dav### [at] cableinetcouk
http://members.vavo.com/squiffy/
http://www.hamiltonite.mcmail.com
----------------------------

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In article <0hncfs47vo5li2rhk2rb1tlp4roebecl28@4ax.com>, David 
Wilkinson <dav### [at] cableinetcouk> wrote:

> >Yup. Ablative (of circumstance) for the first person feminine.
> >
> Wow! I thought that was the word for those tiles they put on the outside 
> of re-entry vehicles.

From my copy of the Standard Encyclopedic Dictionary:

ablative  adj. Gram.
In some inflected languages, as Latin and Sanskrit, pertaining to a case 
expressing separation, position, motion from, instrumentality, etc. -- 
n. 1. The ablative case.  2. A word in this case.


You can see why it is used to describe a material intended to remove 
heat by vaporizing away...here is what the WWWebster 
Dictionary(http://www.m-w.com/cgi-bin/dictionary) says:

Main Entry: 2ab?la?tive
Pronunciation: a-'blA-tiv
Function: adjective
Date: circa 1569
1 : of or relating to ablation
2 : tending to ablate <ablative material on a nose cone>
- ab?la?tive?ly adverb 

And here is the definition of "ablate"
Main Entry: ab?late
Pronunciation: a-'blAt
Function: verb
Inflected Form(s): ab?lat?ed; ab?lat?ing
Etymology: Latin ablatus (pp. of auferre to remove), from ab- + latus, 
past participle of ferre -- more at UKASE, BEAR, TOLERATE
Date: 1542
transitive senses : to remove especially by cutting, abrading, or 
evaporating
intransitive senses : to become ablated; especially : VAPORIZE 1 


Ok, so I was bored. :-)

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Christopher James Huff - Personal e-mail: chr### [at] yahoocom
TAG(Technical Assistance Group) e-mail: chr### [at] tagpovrayorg
Personal Web page: http://chrishuff.dhs.org/
TAG Web page: http://tag.povray.org/

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> David Fontaine <dav### [at] faricynet> wrote:
> >According to m-w.com, though, it's ad nauseam.

Peter Popov wrote:
> Yup. Ablative (of circumstance) for the first person feminine.

At my school we called it accusative (of destination), first declension
feminine.

-- 
Anton Sherwood  *\\*  br0### [at] p0b0xcom  *\\*  http://ogre.nu

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