Control Materials in Blender by using the Object Pass Index

In this Blender tutorial you&learn how to use the Object Pass Index value to control material parameters. In my example you see how to change a material of instanced objects. Every object gets an own color even if it&using the same material. Just one single material is needed, to switch between whole shaders, if needed. 00:00:19 - Introduction 00:03:54 - Setting the material 00:04:50 - Set the first math node 00:06:56 - How the math node work 00:08:13 - Set the nodes to switch between colors 00:09:37 - Preparing more colors 00:12:45 - Switch between shaders 00:17:09 - Shader tree overview