Thin-SSS

I’ve often struggled to find the right balance when creating Single Sided Sub Surface (SSSSS) materials when using Maxwell Render.  It’s not as straight forward as setting up the same type of material using something like Vray’s 2 Sided Material.  Perhaps some of the information below will guide us closer to understanding this elusive material.

Let us begin our journey in the wild world of maxwell’s physical settings.

Settings

1.) Transmittance – Physics The ratio of the radiant energy blah transmitted to the total radiant energy incident on a given body blah

author’s translation: The lighter your transmittance value, the more light will pass through it.  

2.) Attenuation – Physics . a blah decrease in a blah property, as energy, per unit areaof a wave or a beam of particles, occurring as the distancefrom the

source increases as a result of absorption,scattering, spreading in three dimensions, blah, blah, etc.

author’s translation: The higher your attenuation value, the more light will pass through it.  

3.) Coefficient – Physics . a blah number that is constant for a given substance,body, or blah blah blah process under certain specified conditions, servingas a measure of one blah of its properties

author’s translation: The higher your coefficient value is, the more scattered color you are putting into the material

4.) Asymmetry –  (of a molecule) having its atoms and radicals arranged unsymmetrically. major blah

author’s translation: A value above 0.0 will make the scattering more opaque.  A value below 0.0 will make the scattering more transparent. 

Example 1: Coef/Asymmetry

Download: Reference Scene Here

Given the Reference scene and the varying examples below, there should be little to explain here.  (insert unexplained stuff here per request)

Example 2: Varying Values

Download: Reference Scene Here

Given the Reference scene and the varying examples below, there should be little to explain here.  (insert unexplained stuff here per request)

Example 3: Leaf Coef/Asymmetry

Download: Reference Scene Here

Given the Reference scene and the varying examples below, there should be little to explain here.  (insert unexplained stuff here per request)

 Color Card:

This will show up as missing if you download the .mxs reference scenes

 

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©Tom Rusteberg | tom[at]wanderplay[dot]com
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