Another good example is skin, or
Inside LightWave v9 472
Chapter 11 Node-Based Texturing 473
flesh. Go over to your coworker or spouse, grab their ear, and pull it away from their head.
(You might want to warn them first??¦) Look at it in front of a light and what do you see?
It??™s not really translucent like a sheet of paper, and it??™s certainly not transparent, but light
passes through it from behind, more through areas of less thickness than through thicker
sections. This is the subsurface scattering effect, and you??™ll learn to apply it in this exercise.
1. Continuing with the capsules scene
from the previous exercise, select the
Capsule_3 surface in the Surface
Editor. (You??™ve already set up the surfaces
for Capsule_1 and Capsule_2.)
2. Click the Edit Nodes button.
3. From the Add Node drop-down menu,
head down to the Shaders, then to
Subsurface Scattering, and pick Kappa,
as shown in Figure 11.39.
4. Why the Kappa subsurface scattering
node? This shader is a simple yet effective way to get subsurface scattering applied
to your objects. It??™s easy to set up and a good stepping-stone to the more advanced
subsurface shader, Omega.
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