Created by The Four Headed Cat @fourheadedcat - https://twitter.com/fourheadedcat	
Sample of shader with "Highlighted animation" feature, to highlight objects for example. Including the use of the switch node and a ping pong animation between two values.
You are free to modify and use any of the available shader examples in your own projects.

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http://amplify.pt/unity/amplify-shader-editor/contribute