shader_type sky;

uniform sampler2D noise : source_color;
uniform vec3 ccloud : source_color;
uniform vec3 csky : source_color;

void sky() {
	vec2 uv = SCREEN_UV * 0.2;
	uv += TIME * vec2(0.002,0.004);
	
	float f = texture(noise, uv).x;
	f = 1. - f;
	f = pow(f, 3.);
	f = floor(f*5.)/5.;
	
	COLOR = mix(csky, ccloud, f);
}