Human Skin WIPs and Tips (Everyone feel free to post your own skin WIPS here too)


#1541

I have V-Ray for Cinema 4D and did a simple Skinshader which was part of a job a while ago. Unfortunately, V-Ray for C4D and V-Ray for 3dsmax aren’t compatible :frowning:

But I think this Thread helps, it includes Screenshots of how the Shader is build:
http://forums.cgsociety.org/showthread.php?f=43&t=410544


#1542

Hi,
I have been just starting to experiment with the new Vray fastsss2 shader.

Think I am sort of getting what I want, but needs to look way more realistic…

(as you can see I am trying to work out the best lighting too, which also makes a big difference).

Any suggestions on what to improve, lighting, how to make it better etc…?

Adam
:slight_smile:

ps… the Model is a poser model… no need to comment about it as this is just about skin shader testing.


#1543

That’s looking good!


#1544

That looks good Phoenix4. My only concern is, why do you get something that looks like a sharp reflection along the side of the cheecks and in the forehead? I think reflected light in the skin would be much blurryer, except from glossy areas like the lips.

Otherwise it is very nice translucent effect.


#1545

Yeah…

I think having too many lights is causing this ‘sharpness’, maybe I’ll have to look more into the shadow type too.

Sill haven’t found the ‘right’ light yet… but I think I am getting closer to what I want to achieve.

Thanks for the comments

Adam


#1546

Thanks guys for all the references.


#1547

This is what I have been able to achieve using the Mental Ray Fast Skin Shader.


#1548

some people are saying that the specular color should be blue and some are saying it should not be.
so what color should i use now? and if it is blue what kind of blue? is there an example?


#1549

If you’re using the mental ray skin SSS shader, then it already has blueish colors set for reflection and specular. If not, then just set a light blue color.


#1550

Interesting thread.
I found a lot of good reading here.
Skin and realistic skin has always been a hard one. Personally I do not think there is one single formula to get things perfect but hours of pain staking test renders, adapting and trial and error. I use a totally new approach almost every time I formulate a skin shader.
One of my current works was started a month ago and the skin shader started on the initial modeling stage… I am still not yet happy.


#1551

Yeah, I used to do exactly the same thing with the mentalray sss shader and spend hours upon hours changing radius values, subdermal colours, specular values and just when I thought I was happy with it I would come back to it the next day and it would just look bad and I would bang my head on the wall.
But very slowly I came to the realisation that the default settings were actually just right (provided the character is modeled to scale). Instead it was always the lighting that was letting the look of the skin down. So I changed my workflow a little and would do all the lighting before doing any skin shading and get the lighting looking as good and as realistic as I can, because even the best skin shader in the world would look fake in bad or unrealistic lighting.
For me this way is much better and much quicker because once I’m happy with the lighting and I know exactly what it’s doing to my scene/character I can temporarily forget about it and focus solely on the skin shader because now I’ll know how it should behave in the lit scene.

So in a nutshell, my finding is that the key to realistic skin shading (or any material for that matter) is realistic lighting.


#1552

Yeah, that makes perfect sence. I am going to spend more focus on lighting my scenes before trying to do something that gets changed or adapted anyway.
Thanks John.

This is where I am at with my current project.


#1553

Should I be using MR SSS on cartoon models (not aiming for realism in this case)?


#1554

Hi Matasorapit, it’s looking great! But I’m missing the red Backscatter on the Ears - maybe combined with a texture showing veins :wink:

@GBREAL: Depends on the style you like to create! Most time you’ll like to use SSS.


#1555

Hi John,

Thanks for your reply. I am going to go back to this model and tweek it a little.
Your work is fantastic and its a privilege to have your feedback.

Damian


#1556

Here sneak at my new project fast skin shader.

    [img]http://i478.photobucket.com/albums/rr144/kravit43/char-1.jpg?t=1260153359[/img]

#1557

this is what I’ve achieved so far, using max 2010, mental ray and Fast SkinPlus+ shader, handpainted textures for unscattered diffuse, overall coloring, epidermal, subdermal and backlight layers, specular and bump taken from the displacement map. C&C welcomed :slight_smile:


#1558

It doesn’t seem like a lighting issue, I mean, you can see the girl’s ear reflecting on her cheek. That has got to be an issue with the shader.


#1559

It’s looking great! :thumbsup: A little bit waxish, tough :wink:


#1560

some quick tests:I painted the textures quickly in photoshop.mental ray for maya misss_fast_skin

final gathering:

3 area lights

added AO to the material:Final gathering+1 area-pysical light