func foot_of_the_perpendicular(point_tip: Vector3, point_line1: Vector3, point_line2: Vector3) -> Vector3:
    var a: Vector3 = point_tip
    var b: Vector3 = point_line1
    var c: Vector3 = point_line2
    var bc: Vector3 = c - b  # Vector along the line
    var t: float = (a - b).dot(bc) / bc.length_squared()  # Projection factor
    return b + t * bc