"Use parallax occlusion" in Node Material Editor

Another Node Material Editor question please.

I have enabled “Use parallax occlusion” on the PerturbNormalBlock, added a couple of inputs (G & B of the bump texture) to parallaxScale & parallaxHeight, but nothing changes. What am I doing wrong?

https://nme.babylonjs.com/#EPY8BV#577 The bump texture gets removed when I save as unique URL.

Thank you.

cc @Evgeni_Popov

Your material is quite complicated and is missing a lot of textures.

So, here are two examples of how parallax can be used in a node material:

Many thanks!