Thank you very much :)

Sorry about the size of the post. That was something I don't even think
about :P (more concerned on posting my first post)
I will be more careful next time :)

I've realized how I can do it the right way.

What still puzzles me is why I got those results.

Best regards.

"JRG" <jrg### [at] hotmailcom> wrote in message
news:3bfeee03$1@news.povray.org...
> "JPGargoyle" <jpg### [at] clixpt> ha scritto nel messaggio
> news:3bfee77c@news.povray.org...
> > Hi all!
> > This is my very first post ever :))
>
> And it was a large one... :) Next time try to keep your posts within 200
kb.
>
> > I am still a beginner so mabe this post might be somewere else. If that
is
> > the case, my apologies to all.
>
> This is the right place.
>
> > Well, I was experimenting with PovRay 3.5 beta 7 and I was trying to get
> the
> > "negative" of a color when I get some unexpected results (at lest to me
> :D).
> >
> > My question is: Is   rgb 1    the same as   rgb <1,1,1> ?
>
> Short answer: yes.
>
> > pigment{color rgb 1} gives the same result as pigment{ color rgb
<1,1,1>}
> > but
> > pigment{color rgb <1,1,1> - Gray25} gives the expected results and
> > pigment{color rgb 1 - Gray25}results in something completely different.
>
> Maybe the parser wraps 1 - Gray25 together which doesn't make sense. If
you
> want to make the difference between two color vectors just write:
> #declare White = rgb 1; // or rgb <1,1,1>
> #declare Gray25 = rgb 0.25;
> pigment {White - Gray25}
>
> > Well, my question is: What is the difference between rgb 1 and rgb
> <1,1,1>?
>
> As I said there's no difference.
>
> > PS: sorry for the English (I an Portuguese)
>
> Your English is far better than mine, but you may want to know that
there's
> also an international group (povray.international) where you can post your
> questions in Portuguese.
>
> --
> Jonathan.
>
>

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