Patreon Tutorial #32 - Subsurface Single Scattering - Transmittance & Extinction - Part 1 (Patreon)

Hey guys! In Part 1 of this tutorial I will be introducing the transmittance and extinction controls with simple examples to show how they work and influence specifically refractive objects. A lot of people will tint their glass shaders using the refraction color but this is not how refractive materials actually work.

Transmittance / Extinction allows you to provide density to refractive objects where the thickness influences the light absorption and gives us a more accurate look. I will also go over the Scattering parameters and how they function. In part 2 we move on to applying these parameters on more complex geometry from solid objects to refractive objects and how they interact. This foundational knowledge will be necessary for the next tutorial series covering glass objects and caustics specifically to give our glass a more accurate look.

The project files are included below in the 7zip file. Thanks again guys for all the support!