Does anyone have an example of a material using the world postition offset?

I’d like to displace the vertexes of a static mesh with the “World Positon Offset” function, but I am having a hard time getting it to work. Could somebody possibly share a screenshot of a simple material that does this properly?

Take a look at this tutorial:

Or you could load the content examples project and open the math hall level. The first example on the right shows WPO to fake a bouncing ball by taking the ABS of the Sine of time. It is about the simplest case you will find.