Hairpins

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wasd
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Hairpins

Post by wasd »

Not what I expected though...
CPU Bidir+Metropolis, 12.3 k samples.
hairpins2.png
Some more:
hairpins4-2.png
hairpins5-2.png
If anyone interested, scene is attached (texture and hdr not included).
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hairpin.zip
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CPU Bidir + Metropolis | Core i5-4570
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FarbigeWelt
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Re: Hairpins

Post by FarbigeWelt »

wasd wrote: Fri Jul 20, 2018 9:38 am Not what I expected though...
CPU Bidir+Metropolis, 12.3 k samples.
What did you expect then?
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wasd
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Re: Hairpins

Post by wasd »

FarbigeWelt wrote: Sat Jul 21, 2018 11:04 am
wasd wrote: Fri Jul 20, 2018 9:38 am Not what I expected though...
CPU Bidir+Metropolis, 12.3 k samples.
What did you expect then?
I expected that somehow it would (magically) look like real thing. But it's a little off. Now I wonder what's wrong and why there's no magic.
CPU Bidir + Metropolis | Core i5-4570
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Sharlybg
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Re: Hairpins

Post by Sharlybg »

I expected that somehow it would (magically) look like real thing. But it's a little off. Now I wonder what's wrong and why there's no magic.
Always follow real photo as reference !
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FarbigeWelt
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Re: Hairpins

Post by FarbigeWelt »

wasd wrote: Sat Jul 21, 2018 12:06 pm But it's a little off. Now I wonder what's wrong and why there's no magic.
In the first picture the ground looks flat. There are flat cracks. There is a real good reality checker in our mind, fast enough to detect a mirror as a mirror. The picture is almost perfectly rendered but something is wrong there. Might be a good exercise to check a mirror and think about it. I don't mean right left changes and mirrored letters. You can look at a mirrored mirror picture to avoid this and it might take some milliseconds more to realize the artificial picture but you will.
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wasd
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Thinner pins and zirconia with dispersion

Post by wasd »

1000 samples
Found pins almost like this in store, but not as wavy. Will go to another store :)
hairpins-b-1-2.png
With another hdr,
default metal material:
hairpins-b-4.png
fresnel texture Iron(Fe) data from refractiveindex.info interpolated with scipy B-spline feature (at least it is what script is meant to do):
hairpins-b-3.png
CPU Bidir + Metropolis | Core i5-4570
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