How can I make the wave height smaller towards the outside with geometry nodes?

Question

Hello, that´s my first post here. Hopefully you can help me. :) I connected a "Wave-Texture" to an "Extrude Mesh". In between I have a "Float Curve" and "Map Range" for better control of the look.

I want to do a wave animation. For that I want to insert keyframes to the "Phase Offset" in "Wave Texture". Now I want the waves which go outwards should become smaller unstil they dissapeared (getting flat). In my geometry node they have all the same heigh. I tried different things, but I couldn´t find a solution.

My theory is, that I have to change something in "Map Range" with the "To Max"-Value. Something with an Offset which lowers the value of the height of the waves if they leaving the centre. I would really appreciate the help.

Your

PurpleSenf

Answer 1

You have several options for this, but the most obvious solution would be to control the Wave Texture directly with a spherical gradient.

This could look like this:

Since your mesh has a dimension of 100m, you would have to scale the position vectors according to your wishes, because the node Gradient Texture works in a range of 1x1.

You can connect the output Fac with the node Float Curve or Map Range to get the desired result.

And at the end you use this value as multiplier for your Wave Texture.

_{(Blender 3.2+)}