POV-Ray: Newsgroups: povray.newusers: How do you write Functions?: Re: How do you write Functions?

POV-Ray : Newsgroups : povray.newusers : How do you write Functions? : Re: How do you write Functions?		Server Time 30 Jul 2024 14:17:10 EDT (-0400)

From: Christoph Hormann
Date: 9 Mar 2004 13:00:02
Message: <c2l0mb$82v$1@chho.imagico.de>

Felbrigg wrote:
> Can anyone give me a simple explanation of how to write a function for use
> in an isosurface or a pattern.  I've seen many examples and even some
> tutorials, yet none are clear on the basic input / output of a function POV.
> 
> For instance.  Do all functions return a float, if so is it always between 0
> and 1?  Some functions seem to require parameters other dont, whats the rule
> here.  I'm a programer by trade so coding as a rule is not a mystery.  Just
> how to a start writing my own.

The various tutorials available should already make this pretty clear, 
apart from that the docs will explain everything else:

http://www.povray.org/documentation/view/140/

There are examples in there for functions with specified parameters, 
float/vector/color functions and everything else.

Christoph

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