Unity 2018 Shaders and Effects Cookbook

Getting ready

This recipe requires the following operations:

1. Create a shader (GrabShader) that we will initialize later.
2. Create a material (GrabMat) to host the shader.

3. Attach the material to a flat piece of geometry, such as a quad. Place it in front of some other object so that you cannot see through it. The quad will appear transparent as soon as the shader is complete: