Move grass shader

Unity Engine
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1

Hi there!

I working on Shader Graph for 2D sprite
and I found the problem, about how to moving a grass similar to hit the wind
Now it almost success,

But it always move the whole plane, even in my Shader Graph preview is move only upper position.

like this

928×624 312 KB
now it as a red arrow, move up and bottom also.
But I actually want it move like green arrow only move at upper position

here is my Shader graph

1913×995 146 KB

anyone has any suggestion?

Thanks!!!

2

You need to fix movement with some mask, for example it can be texture mask, UV or vertex color. The idea is you need gradient (0-1) to determine how much vertex can move and in your case the easy fix is probably just multiply your displacement with UV.y (it’s black on the bottom and white on the top).