In article <3A5FD39A.10B10F70@pacbell.net>, lin### [at] povrayorg 
wrote:

> What I am saying is I don't have to look at the code to understand
> how to use a pattern. I know how to use the granite pattern with
> complete confidence yet I know absolutely nothing about noise
> functions. I don't need to.

Nobody said you would have to look at the macro code! There is no more 
reason for you to open the include and look at the macros than to poke 
around in the POV-Ray source code!


> Can you define a normal pattern with a macro ? I don't recall that 
> being possible.

It is perfectly possible...function patterns work fine in normals.


> Even if it is possible is it as easy as it is with a built in pattern?

Yes. Just use the macro the same way you would in a pigment.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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