I am trying to create a displacement shader to apply on a spite using a Height map picture, just like this:
The image i've included is from cpetry.github.io/NormalMap-Online/
I have tried to study the 2D Normal Mapping example but i cannot really understand what should i do to achieve the displacement.
Once having replaced the normal map texture with mine (the concentric circles) in the 2D Normal Maping example, the result is this one
but i see no height difference (shown by horizontal/vertical displacement) but just only shadows.
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Could you tell me where am i failing ? Thank you