Doubts about the new function POM (Parallax Occlusion Mapping) from UE 4.9

Im using the new version of UE 4.9 preview 2 and im trying to understand the new function POM thats came on the new version.

If possible i’d like any help to understand its functions , for i can mount up the material POM for objects e another Terrain. If possible I would like some example for reference.

I thank you for the upcoming aswers.

Here is my setup

And here how it looks

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Thanks for help Barzum

This is exactly what I was looking for! Thank you much…any idea if the following affects scene shadowing correctly? I saw it in another thread: