1((function noise1 2 (signature float 3 (parameters 4 (declare (in) float x)) 5 ((return (expression float noise (var_ref x))))) 6 (signature float 7 (parameters 8 (declare (in) vec2 x)) 9 ((return (expression float noise (var_ref x))))) 10 (signature float 11 (parameters 12 (declare (in) vec3 x)) 13 ((return (expression float noise (var_ref x))))) 14 (signature float 15 (parameters 16 (declare (in) vec4 x)) 17 ((return (expression float noise (var_ref x))))) 18)) 19