Hairpins

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

Not what I expected though...
CPU Bidir+Metropolis, 12.3 k samples.

Some more:

If anyone interested, scene is attached (texture and hdr not included).

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?

wasd · 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.

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 !

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.

wasd · 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

With another hdr,
default metal material:

fresnel texture Iron(Fe) data from refractiveindex.info interpolated with scipy B-spline feature (at least it is what script is meant to do):

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Hairpins

Hairpins

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Re: Hairpins

Thinner pins and zirconia with dispersion