sha_wind.gdshader

shader_type spatial;

vec2 random2(vec2 p) {
	return fract(sin(vec2(
		dot(p, vec2(127.32, 231.4)),
		dot(p, vec2(12.3, 146.3))
	)) * 231.23);
}

float worley2(vec2 p) {
	float dist = 1.0;
	vec2 i_p = floor(p);
	vec2 f_p = fract(p);
	for(int y=-1;y<=1;y++) {
		for(int x=-1;x<=1;x++) {
			vec2 n = vec2(float(x), float(y));
			vec2 diff = n + random2(i_p + n) - f_p;
			dist = min(dist, length(diff));
		}
	}
	return dist;
}

void fragment() {
	ALBEDO = vec3(worley2((UV * 2.0) + (TIME * vec2(1.0, 0.0))));
}