Unity 2018 Shaders and Effects Cookbook - Third Edition

Introduction

Compared to Surface Shaders, Vertex and Fragment Shaders come with little to no information about the physical properties that determine how light reflects on surfaces. What they lack in expressivity, they compensate for with power: Vertex and Fragment Shaders are not limited by physical constraints and are perfect for non-photorealistic effects. This chapter will focus on a technique called the grab pass, which allows these shaders to simulate deformations.