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Some crushed ice for a WIP - ignore the crappy box... any thoughts?
#declare Ice_Mat =
material {
texture {
pigment {rgbf <1,1,1,0.9>}
normal {granite 1 scale 5}
finish {
diffuse 0.75
specular 0.75
roughness 0.01
reflection {fresnel}
//metallic
conserve_energy
}
}
interior {
ior 1.4
media{method 3 scattering{1, 0.35 extinction 1}}// density{wrinkles}}
}
}
#declare IS1 = 2;
#declare F_Ice = function(x,y,z) {
z
- f_ridged_mf(x*IS1,y*IS1,0, 0, 2.5, 4, 2, 5, 2)/5
+ f_noise3d(x,y,0)
-1
}
height_field{
function 100,100 {F_Ice(x*10,y*14,0)}
scale<10,1/2,14>
material{Ice_Mat}
hollow
translate<-5,0,-7>
}
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Attachments:
Download 'ci_01.JPG' (40 KB)
Preview of image 'ci_01.JPG'
![ci_01.JPG](/povray.binaries.images/attachment/%3C4211fc28%241%40news.povray.org%3E/ci_01.JPG?ttop=441697&toff=5600&preview=1)
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Tom Melly wrote:
> Some crushed ice for a WIP - ignore the crappy box... any thoughts?
>
> #declare Ice_Mat =
> material {
> texture {
> pigment {rgbf <1,1,1,0.9>}
> normal {granite 1 scale 5}
> finish {
> diffuse 0.75
> specular 0.75
> roughness 0.01
> reflection {fresnel}
> //metallic
> conserve_energy
> }
> }
> interior {
> ior 1.4
> media{method 3 scattering{1, 0.35 extinction 1}}// density{wrinkles}}
> }
> }
>
> #declare IS1 = 2;
> #declare F_Ice = function(x,y,z) {
> z
> - f_ridged_mf(x*IS1,y*IS1,0, 0, 2.5, 4, 2, 5, 2)/5
> + f_noise3d(x,y,0)
> -1
> }
>
> height_field{
> function 100,100 {F_Ice(x*10,y*14,0)}
> scale<10,1/2,14>
> material{Ice_Mat}
> hollow
> translate<-5,0,-7>
> }
>
>
>
Colour and texture looks dead on for all but the snowyest of crushed
ice. In other words once it has set for a few minutes. I guess I am
more used to seeing varients on cubed ice for so long now that I have a
hard time picturing true crushed ice.
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My only impression is that it isn't bright enough. The deli i get coffee at
in the morning has a big sink/well/pit (for lack of a better term) for
crushed ice that they put the lunch platters on. It seems to catch the light
and really hold on to it. Where your ice has a dozens of small points of
white highlights, theirs is probably almost all white with a a little fall
off, but very bright highlights. The shape of your ice looks pretty good,
but maybe a little too much like glass shards.
i think it's great though, maybe about 95% there. Maybe it's even better
than that and a real scene with real lighting would bring it the rest of the
way. I'm looking forward to the end result.
-ross
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In article <42121570$1@news.povray.org>, rli### [at] everestkc net says...
> My only impression is that it isn't bright enough. The deli i get coffee at
> in the morning has a big sink/well/pit (for lack of a better term) for
> crushed ice that they put the lunch platters on. It seems to catch the light
> and really hold on to it. Where your ice has a dozens of small points of
> white highlights, theirs is probably almost all white with a a little fall
> off, but very bright highlights. The shape of your ice looks pretty good,
> but maybe a little too much like glass shards.
>
> i think it's great though, maybe about 95% there. Maybe it's even better
> than that and a real scene with real lighting would bring it the rest of the
> way. I'm looking forward to the end result.
>
> -ross
>
Yes, this looks more like this stuff:
http://www.biconet.com/soil/hydrogel.html
When they have absorbed enough water they take on a look similar, but not
quite like that of ice. More or less exactly like what your image shows.
Its not far off what you wanted, just not quite right. I would say it
looks too "wet", like partly melted slush, rather than ice.
--
void main () {
call functional_code()
else
call crash_windows();
}
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