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A reflective sphere on a checkered plane.
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Attachments:
Download 'Stone001.jpg' (40 KB)
Preview of image 'Stone001.jpg'
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Ooooh! 'xplain.
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"TonyB" <ben### [at] panama c-comnet> wrote :
>
> Ooooh! 'xplain.
>
Just an Isosurface with a little normal.
#declare CR = function{ pigment { crackle scale 0.5 } }
surface{
function {
(x^2+y^2+z^2)
+(CR(x, y, z)*0.5)
}
threshold 1
contained_by{ sphere{ 0,1 }} // bounding shape
scale < 2, 1, 1 >
pigment { rgb < 0.8, 0.5, 0.3 > }
normal {
gradient x
normal_map {
[0.0 bumps scale 0.2]
[0.3 crackle 1 scale 0.5]
[0.6 dents 1 scale 0.5 turbulence 1]
[1.0 marble scale 0.5 turbulence 1]
}
scale 0.25
turbulence 0.5
}
finish { phong 0.5 specular 0.5 reflection 0.25 }
} // end box
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Bill DeWitt wrote:
>
> A reflective sphere on a checkered plane.
Looks pretty cool. A couple notes:
1. Increasing the max_gradient will get rid of the black artifacts.
Whether or not you want to do this in this particular pic is up to you,
of course, since the artifacts are actually kinda neat here...
2. Some reflection blur and a low-to-medium reflect_metallic value would
probably improve it (IMO of course).
--
Xplo Eristotle
http://start.at/xplosion/
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"Xplo Eristotle" <inq### [at] unforgettablecom> wrote :
>
> 1. Increasing the max_gradient will get rid of the black artifacts.
>
Right. I did this when I moved on, but I wish I could have made those
cool ridges on purpose 8-)...
> 2. Some reflection blur and a low-to-medium reflect_metallic value would
> probably improve it (IMO of course).
Probably right, but I ended up filling it with media instead of texture.
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Bill DeWitt wrote:
> A reflective sphere on a checkered plane.
Looks like the carvings done by west coast aboriginals, but more
abstract.
Very beautiful!
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"Simon de Vet" <sde### [at] istarca> wrote :
>
> Looks like the carvings done by west coast aboriginals, but more
> abstract.
>
> Very beautiful!
>
Thank you, now I -really- wish I had done it on purpose...
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Ah, the great isosurface, I presume.
Time I get started on ridged multifractals :-)
--
___ _______________________________________________
| \ |_ <dav### [at] faricynet> <ICQ 55354965>
|_/avid |ontaine http://www.faricy.net/~davidf/
"The only difference between me and a madman is that I'm not mad." -Dali
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Oh, and please translate :-)
--
___ _______________________________________________
| \ |_ <dav### [at] faricynet> <ICQ 55354965>
|_/avid |ontaine http://www.faricy.net/~davidf/
"The only difference between me and a madman is that I'm not mad." -Dali
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"David Fontaine" <dav### [at] faricynet> wrote in message
news:38F24E3E.2FB24C34@faricy.net...
> Oh, and please translate :-)
>
Translate what? The isosurface function?
// make a pigment into a function
#declare CR = function{ pigment { crackle scale 0.5 } }
surface{
function {
// make a sphere
(x^2+y^2+z^2)
// add the crackle
+(CR(x, y, z)
// make it half as deep
*0.5)
}
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