CG Compositing Series – 2.2 Material AOVs (Bonus) – Cross Polarization Photography
In this video I cover Cross Polarization of Light. The interesting phenomenon that allows you to separate diffuse and specular components in Photography. We explain the science of cross polarization as well as the benefits it gives us for CG Material creation
0:00 – Intro
1:11 – Electromagnetic Spectrum
1:56 – 3D Light Wave Representation
2:52 – Linear Polarization of Light
4:51 – Cross Polarization of Light
6:42 – Polarization Upon Reflection
8:18 – Brewster’s Angle
8:47 – Unpolarized Diffuse Component
10:31 – Polarized Specular Reflections
13:40 – Cross Polarized Photography
19:28 – How to Isolate the Specular
20:53 – Metals
21:16 – Color Aritfacts
22:43 – Light Stage
24:08 – Outro
Please visit the blog post for the full write up, sources, references, work files, and render downloads accompanying the video.
https://compositingmentor.com/2023/03…
Or Head to my Compositing Blog for more posts and videos:
https://compositingmentor.com
