"Warp" <war### [at] tagpovrayorg> schreef in bericht 
news:45813d16@news.povray.org...
> Thomas de Groot <t.d### [at] internldotnet> wrote:
>> so.... what do you think?
>
>  Yes, there's no mention of the returned vector being normalized. Thus
> it may not be wise to assume it is, and thus it would be wise to use
> vnormalize(), just in case.
>

OK. There is something that I am missing here obviously. When you mention 
normalize, I think normal. To tell the truth, I have never thought about the 
difference, and as things work perfectly well (in the case of trace to plant 
my trees) I never thought further. However, I wonder about the difference. I 
read the docs, but except for hardly two lines of text, I find no mention of 
what the importance of vnormalize() is and what it is supposed to do. Could 
you please explain?

Thomas

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