Painting for subsurface scattering

be gentle when looking at these images cause ive only just worked this out… Ive actually worked out how to paint just like a subsurface scattering algorythm works.

theres a few inconcistencies in the brightnesses so it can come off a little flat if you dont get it perfect.

Anyway… the secret to doing this is starting off with HUGE blurry brushes, im talking at least a sixth of the screen, and work your way smaller slowly generating the shape you want… just like how the algorythm works, if you add specular dots on it finishes the effect.

If anyones interested I could come back with a video of me doing something really simple like a toy ducky or something.

Interesting, though the specular dots come off as a bit harsh. I’d love to see this effect applied to a full-on painting.

Thanks 1nky for comment, yeh it takes a bit of skill to get the specular the exact right shape and in the exact right position, this is only really quick work… I put a bit more time into this new one, but still to finish these pictures off completely is going to take a really trained eye.

As you can see, it strangely looks like a 3d model with subsurface scattering on it! :slight_smile:

here… this ones a little better, note the soft appearance of the skin. sorry for NSFW.

heres a better example…

I still don’t understand why this is considered SSS and not just regular painting?

its a marble shader, takes no skill to do if you learn the technique properly.

these remind me a little of Mark Behm’s painting style(a couple of his blobby ones), but I agree with Rob. If you don’t follow Sam Nielson’s blog I suggest it, he really knows how to paint things that mimic 3D shaders. http://artsammich.blogspot.com/

Yeh, totally, thats exactly what im interested in, I know it can seem like its just painting, but im telling you I try to visualize a 3d model in it as I work, its very synthetic. Youd never believe me, but sss is the gateway to realism, dont bother with colour theory, just go straight for the sss, emulate it as much as possible, it really really helps.

After a bit more practice… heres another…

[QUOTE=Rob Galanakis;12398]I still don’t understand why this is considered SSS and not just regular painting?[/QUOTE]

I guess it’s a regular painting that tries to build an sss effect by layering successive blurred levels to mimic an sss shader that builds diffussion in blurred layers? ( with a seperate specular component as well ).

http://developer.nvidia.com/node/171

Figure 14-18 Using Only a Single Gaussian Does Not Generate a Realistic Image of Skin

These are so scare.
Thanks.