sslide24 opened this issue on Jan 23, 2006 ยท 13 posts
sslide24 posted Mon, 23 January 2006 at 11:35 PM
How tune values in parametrs SSS for create real skin shader?
steama posted Tue, 24 January 2006 at 12:48 PM
Attached Link: http://www.renderosity.com/messages.ez?ForumID=106&Form.ShowMessage=2547513
This post by Shonner may help you.
ren_mem posted Tue, 24 January 2006 at 3:41 PM
There is also a preset in the program to help. Depends on the shader tho so it will vary.
No need to think outside the box....
Just make it
invisible.
ShawnDriscoll posted Tue, 24 January 2006 at 4:38 PM
The preset is great if you're doing renders of embryos. But for adult humans that have more mass to them, turn the intensity down to around 25-30% for starters. And for GI renders, use just a 10% white background as light for the scene (or a 90% black background as light) so you don't blow out your human with radiation. SSS makes them very sensitive to outdoor light.
sslide24 posted Wed, 25 January 2006 at 1:56 AM
2 SHONNER please write value of SSS parametrs what you apply in this image http://www.renderosity.com/photos/MSG2/Message2554342.jpg
Message edited on: 01/25/2006 01:57
ShawnDriscoll posted Wed, 25 January 2006 at 2:22 AM
ShawnDriscoll posted Wed, 25 January 2006 at 9:33 PM
I forgot to tell you that those settings are for a 5'8" - 6' tall figure. They may not work for just the head of a figure.
Message edited on: 01/25/2006 21:35
enigmaticredfrog posted Thu, 26 January 2006 at 10:50 AM
it's more or less a trial and error. and I change my sss between characters from time to time depending on the look I am going for.
Christina -- "Love me but don't tell me so" Lilly
Bart
My Art
ShawnDriscoll posted Thu, 26 January 2006 at 11:09 AM
Just remember that the SSS settings are global for a scene. They are not local for an object's shader channel. So when you change the size of an object, you have to re-adjust the SSS settings for it. The bigger the object, the more you'll want to increase the SSS refraction index setting. Reduce it for smaller objects.
Message edited on: 01/26/2006 11:14
enigmaticredfrog posted Thu, 26 January 2006 at 11:16 AM
thanks... I didn't know that. (ignorance is bliss)
Christina -- "Love me but don't tell me so" Lilly
Bart
My Art
ShawnDriscoll posted Thu, 26 January 2006 at 11:43 AM
I didn't know it either, until I read up on SSS theory and application and saw that they were doing stuff globally. I found a couple sites that used Max 8 that had a radius setting for their SSS. I don't think Carrara has that in their SSS.
ren_mem posted Sat, 28 January 2006 at 12:24 AM
So how come you can select an ear(shader domain) sss setting differently than a head? What's the point?
No need to think outside the box....
Just make it
invisible.
ShawnDriscoll posted Sat, 28 January 2006 at 2:25 AM
Attached Link: http://www.lamrug.org/resources/doc/sss-skin-tutorial.pdf
I guess you would need to as a work-around to make up for not having a SSS radius setting in Carrara. I wonder if Poser 6 has more (or less) SSS settings than Carrara? I'm curious if Carrara can do a SSS ear as well as the PDF tutorial shows?