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I want to take one of the brass textures and layer a little oil and grime on it.
I thought this would be simple but I'm goofing up something very basic. I
thought I'd start with a completely transparent pigment, just to get the hang of
the syntax. Layering a transparent pigment should do absolutely nothing, but
instead my brass turns grey, roughly the background color.
#declare Plate = box {<-4, .13, -4> <4, -.1, 4>
texture {
T_Brass_2A
// finish { specular 0.90 roughness 0.21 ambient 0.05 }
pigment {
color rgbt <0,0,0,1>
}
}
}
Plate
....plus a skysphere of grey and an include for metals.inc. What am I not
understanding? Note that if I use an rgbt of 1,1,1,1 I get almost white (why?),
and 0,0,0,0 gives almost black (which makes more sense.)
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From: Warp
Subject: Re: newbie vs. layered textures. Should be trivial, but...
Date: 19 Apr 2014 15:54:19
Message: <5352d46a@news.povray.org>
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Scott M <nomail@nomail> wrote:
> #declare Plate = box {<-4, .13, -4> <4, -.1, 4>
> texture {
> T_Brass_2A
> // finish { specular 0.90 roughness 0.21 ambient 0.05 }
> pigment {
> color rgbt <0,0,0,1>
> }
> }
> }
> Plate
To make layered textures you need to put them in separate 'texture'
blocks, like this:
#declare Plate = box {<-4, .13, -4> <4, -.1, 4>
texture {
T_Brass_2A
// finish { specular 0.90 roughness 0.21 ambient 0.05 }
}
texture {
pigment {
color rgbt <0,0,0,1>
}
}
}
--
- Warp
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Too obvious for words... thanks.
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