void F0(in vec2 l0) { float l1 = 0.0; float l2 = 0.0; float l3 = 0.0; float l4 = 0.0; F1((l0).x, (l0).y, l1, l2); F1(l1, l2, l3, l4); } void F1(in float l0, in float l1, out float l2, out float l3) { l2 = l0; l3 = l1; return; }