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"Bald Eagle" <cre### [at] netscapenet> wrote:
> Thomas de Groot <tho### [at] degrootorg> wrote:
> > Op 20/12/2021 om 21:52 schreef Chris R:
>
> > This looks very convincing to me.
> >
> > [nitpicking] Maybe the snow seems a bit polluted by industrial fall out
> > from its original surroundings? [/nitpicking] :-)
>
> I think that's the effect of larger bits of transparent ice and not fluffy
> diffuse snow. At least that the impression I get, especially with the specular
> reflections.
>
> I wasn't quite able to envision an earlier comment about adding some emission,
> but now I think that it does need to be in some way "brightened".
>
> deeper sslt?
> rgbt?
> emission?
> a smaller emissive or rgb 1 diffuse 1 snowball just beneath the surface?
>
>
> Still, a very impressive texture - it is looking REAL.
If anyone is interested, here is what I am using for the material:
#declare Real_snowman_snow_texture3 = texture {
pigment {
granite
color_map {
[0.0 rgb <1.2, 1.2, 1.2>]
[1.0 rgb <1.15, 1.15, 1.15>]
}
scale 0.5
}
finish {
fresnel
diffuse 0.7
specular albedo 0.2
roughness 0.001
subsurface { translucency 0.5 }
}
}
#declare Real_snowman_snow_material3 = material {
texture {
Real_snowman_snow_texture3
}
interior {
ior 1.33
}
}
The snowballs are isosurface spheres. I use f_snoise3d at a scale to deform the
spheres, and the f_granite at a smaller scale to get the bumps that make the ice
crystals on the surface of the sphere.
-- Chris R.
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