Changing world position offset normals

Pampers

I have a tesselated flat plane that I offset in the shader with world position offset. My problem is that all the normals stay the same and point up. The shader is using simple math to offset the plane and is not using any textures.
I want to get the same flat shaded look that green mesh has.



Any ideas on how I could solve this?

mAlkAv!An

One way to solve this is to re-calculate flat normals in the material

Pampers

Thank you! Did not know about the ddx and ddy nodes. Got exactly the result I was looking for