godot_deform.shader

shader_type canvas_item;
render_mode unshaded;

uniform sampler2D tex : hint_albedo;
uniform float deform_amt : hint_range(-1,1);
uniform float deform_speed : hint_range(0.5,4);
uniform bool animate;

void fragment() {
	float def_amt = deform_amt;
	vec4 cl = texture(tex, UV);
	if (animate)
		def_amt *= sin(TIME * deform_speed);
	COLOR = texture(TEXTURE, clamp(UV + cl.r * def_amt / 2.0, vec2(0.0), vec2(1.0)));
}