PDA

View Full Version : SubSurface Scattering?

Mahlikus
02-05-2003, 07:20 PM
I started this thread in the WIP forum but it belongs here.

I am trying to fake SSS in ZBrush 1.55b....
I here that laughing! I am serious!
Anyway...I dont know too much about it save what I have read by ChanLum for C4D. This all actually started buy asking opinions on my texture..some feedback. ThirdEye enlightened me to SSS and ChanLum and now I find myself not so worried about the texture...yet. I need to make sure I have the material right.
With what little I think I understand, I came up with this.

http://www.pixolator.com/ubb/uploaded_files/user_image-1044426474ajx.jpg

This is what I originally had started out with...

http://www.pixolator.com/ubb/uploaded_files/user_image-1044286162hfc.jpg


Thank you anyone who is willing to help.
Mahlikus
02-06-2003, 03:15 AM
Well, I think I might have fiigured out how to get close.
Here is what I have so far.

http://www.pixolator.com/ubb/uploaded_files/user_image-1044485385hvc.jpg

Dont pay any attention to the lips and eyes..I havent gotten that far yet.

This material seems to be on the right track. Only two lights, white, soft shadows, with little to no ambient lighting anywhere. Just maybe a touch in the skin.

Any guidence as to where there are problem areas?

Thanks.
EricChadwick
02-06-2003, 08:58 PM
You're going in the right direction.

Take a look at Steven Stalhberg's tutorial... has some interesting ideas on how to hack SSS.

http://www.androidblues.com/shadetut.html
Mahlikus
02-07-2003, 08:32 AM
I think this is it!!

http://www.pixolator.com/ubb/uploaded_files/user_image-1044598876mue.jpg
EricChadwick
02-07-2003, 02:53 PM
Hmm. Getting there, but not really skin-like yet. Unless you;re going for an alien look, which could be anything really.

I looked around for reference, and here's a picture of my daughter. She is being lit by sunlight bouncing off a snow-covered lawn, so the light is very white, with just a little blue.

In particular, notice the subtlety happening at the terminus of the light, how the skin takes on a reddish hue.

http://www.ericchadwick.com/kids/images/20021215emc-closeup.jpg

Don't give up, it is a worthy challenge!
Mahlikus
02-15-2003, 07:33 AM
OMG she is so cute!!
Well, shall we have another go?

Here are some more tests in ZBrush..using an experimental material.


One light only, no texture

http://www.pixolator.com/ubb/uploaded_files/user_image-1045290076xxe.jpg


Two lights. Again, no texture. Next to some standard ZBrush materials.

http://www.pixolator.com/ubb/uploaded_files/user_image-1045292836unk.jpg

Some crits on this would be cool.

Thank you.
CGTalk Moderation
01-14-2006, 09:00 AM
This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.