In article <395ff75b@news.povray.org>, "Bob Hughes" 
<per### [at] aolcom?subject=PoV-News:> wrote:

> Maybe because 'normal on' only goes into the 'radiosity' statement 
> far as I know.  And I looked it up in the html doc to make sure and 
> it's not a part of the possible things for 'isosurface'.

It also goes in isosurfaces, isoblobs, and parametrics. It should 
specify a more accurate normal calculation, but doesn't work well with 
atan2 or noise3d. I think it also has problems with built in functions, 
which this object uses.

It is documented in the MegaPOV manual, just not where you expect. Look 
in the isoblob section, under "Technical notes on the function normal 
patch:".

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

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