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View Full Version : Fast Skin Shader Discussion.


AdamBaroody
04-30-2006, 03:03 PM
Has anyone had success with the Fast Skin Shader ? I'm curious what settings you use?

It tends to look too waxy and i cant really dial that waxy look out.

wurp
04-30-2006, 04:08 PM
change the scale parameter, that should do the trick

mdee
04-30-2006, 04:25 PM
Not sure if this is what you want but there you go.

My model is 20 SI units high (this is important)

http://img220.imageshack.us/img220/5166/sss6xx.th.jpg (http://img220.imageshack.us/my.php?image=sss6xx.jpg)

Also, check

lamrug.org/resources/doc/sss-skin-tutorial.pdf (http://lamrug.org/resources/doc/sss-skin-tutorial.pdf)
lamurg.org./resources/skintips.html (http://lamurg.org./resources/skintips.html)

Sbowling
05-01-2006, 03:21 AM
definitely go through the skintips web site and read through the pdf.

mdee, you have an extra http/ in the link to the web site.

benytone
05-01-2006, 04:54 PM
Has anyone had success with the Fast Skin Shader ? I'm curious what settings you use?

It tends to look too waxy and i cant really dial that waxy look out.

That's my example
...
http://img406.imageshack.us/img406/3599/win021sh.jpg
...
http://img467.imageshack.us/img467/8255/win012ob.jpg

.

benytone
05-01-2006, 05:19 PM
That's my example
...

.
I forgot,
you must have much patience with Render Time!
.

Leshiy3d
05-02-2006, 01:25 PM
nice Discussion.
Check out my sss_fast_skin setting, this not ideal indeed, but I always try to improve it...

http://leshiy3d.ru/wip/wrestler/wrestler_07.jpg

http://leshiy3d.ru/wip/wrestler/wrestler_11.jpg

http://leshiy3d.ru/wip/wrestler/wrestler_08.jpg

http://leshiy3d.ru/wip/wrestler/wrestler_088.jpg

and don't forget about 2-3 sources of the illumination with Enable Shadow :)

AdamBaroody
05-02-2006, 08:37 PM
Everythings dark or too waxy when i do this. I Copied your settings and everything seems too dark. The shader itself looks ok, but its too dark. White skin looks brownish.

How much light are you blasting on it?

Should i turn up the diffuse weight?

Leshiy3d
05-03-2006, 07:13 AM
How much light are you blasting on it?
I used eight pieces, you can download my light rig here (http://leshiy3d.com/tmp/Lights.emdl)

mdee
05-03-2006, 08:08 AM
Hi Alex, I am sure you are aware that color piped into overall color is multiplied on top of everything else, so if it is black it blocks all scattering.

The model looks great no matter what :)

Leshiy3d
05-03-2006, 09:49 AM
Hi Alex, I am sure you are aware that color piped into overall color is multiplied on top of everything else, so if it is black it blocks all scattering.
that's right, and so I used black and wite texture mask, to block nostrils, inner mouth and some parts else :rolleyes:

TimMehmet
05-03-2006, 08:58 PM
Iv been striving to get decent SSS for a while now, this is my best result so far.
Im still new to the shader tree so its really quite a basic setup.


http://img197.imageshack.us/img197/1373/xsiheadwip21aq.jpg
http://img463.imageshack.us/img463/8489/rendertreeexample16xz.jpg
EDIT: forgot to add the shader tree in

NeptuneImaging
05-03-2006, 09:03 PM
Hey, alex, that is a nice render tree too. I guess I can say the render times is dependant on your hardware for the XSI version of the skin shader.

On my pc, I have to use the SSS Split sometimes for more control and the results are fantastic. I will post something I did in XSI FND 5.1 just to test my shader art abilities. (Still getting used to working in XSI) A simple eyeball with an HDR environment map. I learned to use this on the eyes too, because it emulates the tone of the human eye.

I can't grab a render tree for this eye because I was on the trial and it expired. Only a single point light is creating the highlights and the LM samples are at the default.

http://i4.photobucket.com/albums/y122/JamesRayder2026/SSSEye1.jpg

Please enjoy and feel free to give critique.

P.S.: for those who want to use passes, I have found a way around the restrictions for using passes with SSS. :)

Leshiy3d
05-04-2006, 12:55 PM
Hi HaloAnimator
Making a quite realistic eye is often is a greater problem for me :banghead:
If it's interesting to you, I can show my recent work(rtree) on the eye, with sss shader. ;)

P.S.: for those who want to use passes, I have found a way around the restrictions for using passes with SSS.

it's interesting :hmm:

RenisanceX
05-04-2006, 02:07 PM
here are two images the fish one is new somewhat still very wip hence the seams but im using the fast sss
the second one took alot of tweaking it has fast skin sss material to it but im not sure how much its contributing to the over all look of the girl's skin


http://img85.imageshack.us/img85/8726/fishwip8eb.jpg


excuse here undone eyebrowes

Jesse-Irvin
05-05-2006, 12:14 AM
this is what I've been working with thus far.

http://student.vfs.com/~3d43jesse/prexiss3test.jpg

RenisanceX
05-05-2006, 04:54 AM
sorry for not posting the right images guys thought they were the ones with the tree and all.I will make sure to do so and also post the girl

One thing i have noticed so far i have yet to see anyone produce skin in xsi using the fast sss skin that rivals that of some i have seen in maya 's implentation.

thoughts?

mdee
05-05-2006, 08:22 AM
From what I know, Maya and XSI implementation of the fast sss shader are indentical (it's the same shader)

NeptuneImaging
05-05-2006, 02:00 PM
Hey Alex, please feel free to show your eye shader with SSS. I have messed with this eye for months and I am very happy with it now. I don't if it looks realistic to some of you but I'm cool with it. Can't wait to make a human being with it.

RenisanceX
05-06-2006, 12:35 AM
From what I know, Maya and XSI implementation of the fast sss shader are indentical (it's the same shader)


thats my point exactly

RenisanceX
05-10-2006, 08:31 AM
so i have decided to play with this shader more and this s what i got recently
3 point lighting standard key fill and back

http://img232.imageshack.us/img232/8884/mydude21cd.jpg

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