Perhaps subject and some words are not the best - it's my English ...

I want achive color (1-Color) in this script :

  #macro NegativeTexture(Color)
    texture{pigment{color rgb (1-Color)}}
  #end
  #declare Color=color rgb 1;
  background{color Color}
  object{MyObject NegativeTexture(Color)

and this cause MyObject invisible
and cause warning: Suspicious expression after rgb.
But after changing inside macro :

  #macro NegativeTexture(Color)
    #local MaxColor=color rgb 1;
    texture{pigment{color rgb (MaxColor-Color)}}
  #end

rendering is fine but still with the same warning.
Is there any way to remove this warning ?
Is there any other proper way to calculate "negation" of color ?

ABX

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In article <3aa4e095@news.povray.org>, "Wlodzimierz ABX Skiba" 
<abx### [at] abxartpl> wrote:

> rendering is fine but still with the same warning.
> Is there any way to remove this warning ?

Try:
#macro NegativeTexture(Color)
    texture{pigment{color rgb < 1, 1, 1> - Color}}
#end

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

<><

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Wlodzimierz ABX Skiba wrote:
> 
>[...]
> 
> rendering is fine but still with the same warning.
> Is there any way to remove this warning ?
> Is there any other proper way to calculate "negation" of color ?
> 

I also often stumble over that warning and find it quite senseless.  It
also occurs with simple addition of colors and other stuff.

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other 
things on: http://www.schunter.etc.tu-bs.de/~chris/

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On Tue, 6 Mar 2001 14:05:23 +0100, Wlodzimierz ABX Skiba wrote:
>Is there any other proper way to calculate "negation" of color ?

You could say rgb <1-Color.red, 1-Color.blue, 1-Color-green>


-- 
Ron Parker   http://www2.fwi.com/~parkerr/traces.html
My opinions.  Mine.  Not anyone else's.

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Ron Parker wrote in message ...
> >Is there any other proper way to calculate "negation" of color ?
>
> You could say rgb <1-Color.red, 1-Color.blue, 1-Color-green>


thanks for answers
it seems first version my modelling environment is ready
see at p.b.i and p.b.u

ABX

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