return OutputType.SCALAR;
}
private final Vector4 _function(float du, float dv) {
Vector3 n = new Vector3(du*strength.get(), dv*strength.get(), 1.0f);
n.normalize();
Vector4 c = new Vector4(n.x * 0.5f + 0.5f, n.y * 0.5f + 0.5f, n.z * 0.5f + 0.5f, 1.0f);
return c;
}