Hairpins

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wasd
Posts: 96
Joined: Tue Apr 24, 2018 7:20 pm

Hairpins

Post by wasd » Fri Jul 20, 2018 9:38 am

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).
Attachments
hairpin.zip
(2.23 MiB) Downloaded 29 times
CPU Bidir + Metropolis | Log Power | Core i5-4570

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FarbigeWelt
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Re: Hairpins

Post by FarbigeWelt » 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?
Microsoft Windows 10 Professional, intel i7 4770K, 32 GB, AMD R9 290x 4 GB, AMD R9 390x 8 GB
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wasd
Posts: 96
Joined: Tue Apr 24, 2018 7:20 pm

Re: Hairpins

Post by wasd » Sat Jul 21, 2018 12:06 pm

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 | Log Power | Core i5-4570

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Sharlybg
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Re: Hairpins

Post by Sharlybg » Sat Jul 21, 2018 1:43 pm

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 » Sat Jul 21, 2018 2:33 pm

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.
Microsoft Windows 10 Professional, intel i7 4770K, 32 GB, AMD R9 290x 4 GB, AMD R9 390x 8 GB
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wasd
Posts: 96
Joined: Tue Apr 24, 2018 7:20 pm

Thinner pins and zirconia with dispersion

Post by wasd » Tue Jul 24, 2018 2:43 pm

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 | Log Power | Core i5-4570

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