Whats this node

Development Programming & Scripting
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1

Hi, I am trying to follow this documentation and I am struggling.

Would anyone know what this node is? “ApproxWorldSpaceNormal”

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2

The pink node is a re route and work similar to a custom event
image

So the ApproxWorldSpaceNormal is just getting the input of Normalise and then being call from the Normal pin of the material(guessing by the image below)

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