[RonB]

I am working on a character form...human, and was wondering if anyone knows a good reference source for skin specs? Kind of an "at a glance" ref for different properties, reflections, tones, things like that...is there a skin ior?

Thanks,
Ron

[Maximus3D]

Interesting.. i wanna see what and how you solve this problem. I think Mihai posted a good looking rendering of humanskin he created in the SSS examples thread a while back, it's worth taking a look at. I have some skin specs info i can share, i'm not sure how useful it is since i haven't tested it yet.

Skin 1
R=0.74
G=0.88
B=1.01
R=0.032
G=0.17
B=0.48
R=0.44
G=0.22
B=0.13
n=1.3

Skin 2
R=1.09
G=1.59
B=1.79
R=0.013
G=0.070
B=0.145
R=0.63
G=0.44
B=0.34
n=1.3

/ Max

[RonB]

Hey thanks Maximus! I'll look for Mihai's post and see what he was doing.
I have been playing in Lightwave with a model just using bump, occlusion, spec and normal maps without a color map. Trying for tone and texture right now and it's looking pretty cool as a B&W. Might just keep it that way and play some more with lighting.

Cheers, Ron

[Becco_UK]

RonB: Good luck with the skin - I have yet to see any render from any engine that does realistic human skin. When Maxwell's SSS eventually supports texture maps that could probably take CG skin to a new level.

[Mihai]

I've tried some different SSS settings for skin. One pretty good combination for me was:

ND: 1.35

Scattering: 60,200,230
Transmittance: 235,45,10
Scattering coeff: 2500
Abs coeff: 550
Assymetry: -0.48

Then you can play with the roughness of the SSS component, I set it at 15. Then I blended a BSDF component with the color texture with a bit more contrast since it's lost a bit when blending with the SSS. I set the SSS at 100 weight and the BSDF at 70. The balance between the two is important and it depends a lot what type of skin you want. If it's supposed to be smoother skin the weight of the bsdf can be lowered.

Some examples under different lighting. This is really the most difficult thing about SSS, to make it behave predictably under different lighting. So far I found this easier in Maxwell than other renderers, where it might look ok with a side emitter, but then with environment lighting it doesn't look at all right.

(the head model is from http://www.ten24.info/oldman/tutorial.htm )

[daros]

WOW!

[tokiop]

nice results !!

[Louis v a]

Wow, Most realistic skin material ever seen.

[Bubbaloo]

Wow, cool!

Maybe a little too specular. The first one looks a little waxy. The second one is AWESOME.

[RonB]

Thanks Mihai, looking really good!
So, you are using a texture map with the SSS layer blended 100/70. Wonder why people said a texture map couldn't be used with SSS?

[Maximus3D]

Impressive results Mihai wow. I done numerous testrenders of skin and never got it to look 1/10th as good as your examples. Thanks for the short tutorial, it's very helpful.

/ Max

[Mihai]

It can be made better I think, and it's easier to have good results for smoother skin because you can decrease the blending of the bsdf, and work mostly with a good bump map which can be applied to the SSS as well. The problem is blending SSS with BSDF, you lose some of the effect but it can still look very good. You can also blend several SSS components, for example one more red for the lips and weightmap them. I haven't done that in this render yet.

[kami]

Wow, cool!

Maybe a little too specular. The first one looks a little waxy. The second one is AWESOME.

I agree. It looks like the guy hasn't showered in days
The SSS is coming really great!

[RK_art]

Hello to all in the forum.

I also work since some time on creating realistic skin shaders in VrayforC4D and FinalRender 2.
Now I had the time to do something with Maxwell.
Here are first tests of my shader-setup:





Mihai's settings are a very good starting point, but I do different with my BFDS.

[Maximus3D]

Welcome back to the forum RK good to see you too here and with such a promising looking skinshader in progress.

/ Max