Best practice for foliage and leaves?

[Richard7666]

Is the 2sidedMtl method still the way to go? Or is there a better way now, using the translucency in the vraymtl itself?
The models in my library are all single-sided geometry

[^Lele^]

You could conceivably achieve something pretty with thin-walled and SSS, sure.
I attached you two (poor) images of backlit leaves (from the max foliage. sorry!), the first is 2sided, the second is thin-walled plus SSS (with slightly changed SSS color to show some brownish).

Speed is surprisingly good for the SSS image.

[Richard7666]

Thanks, I agree it looks a lot better!

So, in my foliage vraymtl, I check the thin-walled box, and then set translucency to SSS (it defaults to 'none'), and plug my greenish translucency texture into the SSS color slot?
Do I have that correct?

and this vraymtl isn't plugged into a 2sided material anymore, right?

[^Lele^]

All correct, yes.
Sorry for not having been clear earlier.

[francomanko]

Don't forget to set the SSS amount to 0.5

[Richard7666]

Don't forget to set the SSS amount to 0.5

Thanks! Yeah I figured something was not quote right, so on a hunch played with that setting, good to have it confirmed

[Richard7666]

Out of curiosity, how would the shader be created for this? Similar method?

https://www.youtube.com/watch?v=lxbY8cKRqK8

[^Lele^]

Out of curiosity, how would the shader be created for this? Similar method?

https://www.youtube.com/watch?v=lxbY8cKRqK8

Not at all.

[Richard7666]

Not at all.

So VRscans uses its own unique shader, basically?

[^Lele^]

Yes, so to speak.
As an analogy, scans are the difference between a painting (traditional, "principled" shaders) and a photo (Bi-Directional Texture Reflectance Function).
A piece of physical material is scanned (not unlike one would scan an image), but the properties across the whole hemisphere above (and for translucent materials, inside) the scanned point is taken into account.
This way, the material can then react to light like the real thing would.

[allemyr]

Not at all.

Have been longing for that VRScans foliage material ever since I saw that VRscans intro video years ago.
I don't think there will be foliage VRscans material. Talking about that example we are not sure if it is 100% VRscans related so I think Richards question is adequate

[^Lele^]

Have been longing for that VRScans foliage material ever since I saw that VRscans intro video years ago.
I don't think there will be foliage VRscans material. Talking about that example we are not sure if it is 100% VRscans related so I think Richards question is adequate

That it itsn't in the public library doesn't mean it's not a vrscan.
For whatever reason that specific scan may have been dropped (f.e., too much self-similarity, or some other technical issue that wasn't overcome), but the video above is 100% made with vrscans alone.