wooden Material like VrayScan

[MED-Chris]

Hi,

I use C4D and Vray daily for planing Saunas. I use the textures from arroway because I just need special woods like Apse, Thermo Aspen, Alder ... these are not available in VRscans.

Now I load some wood from VRscan and this is exacly this result was I was looking fore since around 3 years.

Like this beech attached - its from VRscans

Beech has this perfect shine what Im looking foor

Now I just dont know if this is because of the Texture or if I make any mistake.
Is this beech wood maybe made with Anisotopy?

Does anyone know how this work?

I would be really happy about your answer.

Thanks Chris

[fixeighted]

I altered an American oak to get this, which is fairly close; not sure if it what you need but that is probably a good option, to find something similar and correct it to your liking.
Coincidentally I am also making saunas at the moment, so this was what I needed to do for some.

[MED-Chris]

Hi,

thank you very much for this wooden sample. Where can I find this sample scene what you are using here?

I seems to be better than mine, and then I could check my material what I try to create this weekend )

Thank you
Christoph

[fixeighted]

It's just a free shaderball that I got from https://www.youtube.com/watch?v=vRjM...el=MographPlus

The material is not complex, only a colour adjusted wood texture that I thought had a similar grain to the beech, with of course the associated bump, glossiness etc.

[^Lele^]

You will perhaps be able to get close, but the whole point of scans is that they retrieve exact material data at each scanned point, something traditional material making only approximates.
Your mileage may vary, depending on material, but there is no way by which you'll match the two 100%, particularly across a range of lighting situations and viewing angles.

[fixeighted]

Out of interest, what is the area size scanned for the woods?

[^Lele^]

https://docs.chaosgroup.com/display/...+Technical+FAQ
40x40mm min, 300x400mm max, 1mm depth, 0.06 mm resolution (that's six microns).

https://www.youtube.com/watch?v=mWk2...l=ChaosGroupTV

[fixeighted]

Ah ok, as I thought. It's a bit too small for wide coverage of larger objects such as these saunas.
Unless multiple scans are done, to cover any given plank length...is that what is or can be done?

[^Lele^]

It's what the clients do, yes.
You need an exact pattern, you scan more chunks.
If you do not need the exact pattern, however, VRScans can use triplanar mapping (on top of standard, and real-world sized UVs).

Textures suffer from exactly the same issue, btw.
A single picture will only be able to encompass a "large object" 's texture only if the texture is tiny as a result.
In the case of your material, the chance is your texture has a lower spatial resolution than the corresponding VRScan (consider it a ~6.5K square texture, give or take) for the same patch coverage.
And in any event, it surely won't cover a whole sauna.

The difference, however, is that there is no bump, or glossiness texture approximation in VRScans: the scanned point contains surface behaviour from the half dome above it *exactly*.
It's a BTF approach, not a principled one.

[fixeighted]

Sadly, the cost to replicate what I'm for instance using now puts this completely out of the question. At any rate my client would not appreciate the difference, so nothing lost there