POV-Ray : Newsgroups : povray.general : Possible color bug - request for comment : Possible color bug - request for comment Server Time
3 Aug 2024 16:24:09 EDT (-0400)
  Possible color bug - request for comment  
From: Tom Melly
Date: 17 Dec 2003 05:26:15
Message: <3fe02f47$1@news.povray.org>
Not sure if this is a bug in pov or the docs (or possibly my brain).

The docs (6.1.5.5) say:

"For example...
color My_Color red 0.5
this substitutes whatever was the red component of My_Color with a red component
of 0.5 however...
color My_Color + red 0.5
adds 0.5 to the red component of My_Color"


But the following scene-file seems to contradict this:

#version 3.5;

#declare ColTest1 = rgb<1,1,0>;
#declare ColTest2 = rgb<0,1,1>;

//legal
#declare Foo = ColTest1 + ColTest2;

//not legal
#declare Foo = ColTest1 ColTest2;
#declare Foo = ColTest1 + blue 1;
#declare Foo = ColTest1 blue 1;

Any comment as to whether I should post to bugs, docs, or what?

-- 
#macro A(V,B,C,R)#while(B-256)#if(V-128/B>=0)sphere{0,.5translate<C-4R-1,9>
pigment{rgb<1-C/8R/2C/8>}}#local V=V-128/B;#end#local B=B*2;#local C=C+1;#
end#end A(234,1,0,2)A(85,1,0,1)A(81,1,0,0)light_source{-5 1}//Tom Melly


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