How to give the "low poly" effect to a flat surface I'm looking for a way to achieve this kind of effect; the ground path seems to have 'relief' but in fact it's flat; the character doesn't bump on it.

For now i'm starting with a plane; subdivide; displace (cloud); and then I select a bunch of faces which i scale-z to but even; i end up with a shitty flat surface with no color.

What am I doing wrong ?
You can bake the normals of the low poly object and use that as a texture on the plane.
With a Color Ramp you can change the colors of the normal map texture.



How to bake in Cycles