Parallax Occlusion Mapping Deep Dive EP: 1 - Filtering and Mips

Two common mistakes when setting up a Parallax Occlusion Mapping (POM) material is using the default anisotropic texture filtering, and default mip-map calculation. These mistakes can dramatically increase the cost and reduce the quality of POM but can easily be fixed by following along. In the future, I'll cover further ways to improve the quality and performance of POM.