Wobble / shake with adjustable speed and amplitude
Make sprite move in a different directions with varying speed and amplitude.
Change amplitude parameter to set the range of motion.
Change speed to make motion slower or faster.
Set speed or amplitude to 0 to stop movement altogether.
Shader code
shader_type canvas_item;
uniform float amplitude: hint_range(0.0, 1.0);
uniform float speed: hint_range(0.0, 2.0);
void vertex() {
// Called for every vertex the material is visible on.
float time = TIME * (30. * speed);
float wobbling = sin(time) * 40. * amplitude;
float direction = sin(time / 2.);
VERTEX += vec2(direction * wobbling,wobbling);
//VERTEX += direction;
}