How to use InstanceID?

[peterimg]

Hi

How can I use InstanceID in my example to make it work.

I made an example of what I need to do.

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I have a grid of boxes that are in vertices of a ground.

Ground vertex output is distorted by noise with global position.

I was thinking I could have the same like noise controlling the instances. But they are coming all twisted.

If I plug in the noise seed Mash.position they are straight how I wanted but they are not following the noise pattern from the ground.

How to do that in nodeMaterials only? How to modified boxes material so it will work?

Regards
Peter

[Cedric]

You can use the translation part of the instance matrix to get the delta in height.

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