6 (declare (in) float Nref))
7 ((if (expression bool < (expression float dot (var_ref Nref) (var_ref I)) (constant float (0)))
9 ((return (expression float neg (var_ref N)))))))
15 (declare (in) vec2 Nref))
16 ((if (expression bool < (expression float dot (var_ref Nref) (var_ref I)) (constant float (0)))
17 ((return (var_ref N)))
18 ((return (expression vec2 neg (var_ref N)))))))
24 (declare (in) vec3 Nref))
25 ((if (expression bool < (expression float dot (var_ref Nref) (var_ref I)) (constant float (0)))
26 ((return (var_ref N)))
27 ((return (expression vec3 neg (var_ref N)))))))
33 (declare (in) vec4 Nref))
34 ((if (expression bool < (expression float dot (var_ref Nref) (var_ref I)) (constant float (0)))
35 ((return (var_ref N)))
36 ((return (expression vec4 neg (var_ref N)))))))