User manual

© Next Limit Technologies 2010
Maxwell Render 2.5 User Manual
Chapter 10. Maxwell Materials | 74
Additionally, you can add a Coating to the BSDF and the material will turn to a shiny Jade
as seen in Figure 7. To avoid color interference in the coating, set it to 5000 nm or higher
for a thick result. You can obtain a similar effect without using a coating, simply setting
roughness to 0 in the BSDF.
+ =
F.05 Transmittance + SSS + Speculars F.06 Thick Coating F.07 Shiny Jade
One of the most important parameters in subsurface is Asymmetry. By default the value
is set to 0. This means that when a ray hits a particle, it is scattered randomly in all
directions. It is useful for wax materials and common low-translucent plastics. Positive
or negative values change the direction of scattering, as illustrated below. Positive values
scatter the rays back, resulting in a more solid look, while negative values scatter the rays
forward, resulting in a more translucent look.
Asymmetry = 0.0
Asymmetry = 0.0
The example below shows the dramatic changes that result from +0.5 and -0.5 Asymmetry
settings.
1.0 0.8 0.6 0.4 0.2
Response of particle to light under positive Asymmetry
-0.2 -0.4 -0.6 -0.8 -1.0
Response of particle to light under negative Asymmetry