POV-Ray : Newsgroups : povray.newusers : Color Server Time
1 Nov 2024 19:16:18 EDT (-0400)
  Color (Message 1 to 4 of 4)  
From: johnnym
Subject: Color
Date: 19 Feb 2005 13:15:01
Message: <web.421780f6a79767eddcf82eb80@news.povray.org>
Can someone tell me why this object doesn't get white,but only black, though
i assigned an rgb <1,1,1> command?
Many thanks!

Willem

#macro etorus(w, h, r) sphere_sweep {

     // The factor by which we need to scale
     // a b_spline to get the right size
     #declare s=1.6;

     b_spline
     7,
     <-w*s,  0,    0>, r
     <   0,  0,  h*s>, r
     < w*s,  0,    0>, r
     <   0,  0, -h*s>, r
     <-w*s,  0,    0>, r
     <   0,  0,  h*s>, r
     < w*s,  0,    0>, r

     // tolerance could be a param if you wanted
     tolerance 0.9

}
#end


object {
 etorus(19, 1*10, .1)

 rgb <1,1,1>
 rotate <0,0,5>

}


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From: Marc Jacquier
Subject: Re: Color
Date: 19 Feb 2005 13:31:01
Message: <421785e5$1@news.povray.org>

news:web.421780f6a79767eddcf82eb80@news.povray.org...
>  rgb <1,1,1>
>  rotate <0,0,5>
Maybe the answer is in the topic : )
try
color rgb <1,1,1>

Marc


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From: Bob Hughes
Subject: Re: Color
Date: 19 Feb 2005 13:53:50
Message: <42178b3e$1@news.povray.org>
"Marc Jacquier" <jac### [at] wanadoofr> wrote in message 
news:421785e5$1@news.povray.org...
>

> news:web.421780f6a79767eddcf82eb80@news.povray.org...
>>  rgb <1,1,1>
>>
> Maybe the answer is in the topic : )
> try
> color rgb <1,1,1>

Actually, the answer is in the message-- the POV-Ray messages, that is.  ;-)

When rendered it says: "Quick color belongs in texture. Color ignored." and 
"No pigment type given."

Needs a pigment wrapper at the very least. So pigment {rgb 1} would correct 
the error. Watch the message stream first, then if it's okay the problem 
could just be camera/light/object position or something else that's not a 
scripting error.

Bob Hughes


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From: Slime
Subject: Re: Color
Date: 19 Feb 2005 14:30:29
Message: <421793d5$1@news.povray.org>
>      tolerance 0.9


Higher tolerance produces worse results. 0.9 is *huge* for a tolerance
value, especially when your radius is 0.1. Try something more like 1e-6 or
just leave the default.

When tolerance is so high, it's very possible that the sphere sweep thinks
that it's in its own shadow, which would cause it to be dark.

Of course, make sure you have a light source, too. =)

 - Slime
 [ http://www.slimeland.com/ ]


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