Mirrakoi Ltd. provides ‘Xirus’, an advanced 3D CAD kernel to simplify complex organic modeling. Xirus is designed to overcome existing design limitations for smooth 3D digital design and to provide a compelling CAD experience. It provides ‘augmented access’ to a digital object by enabling direct and decoupled control of tangents, curvatures and high-order smoothness parameters as well as interpolating control points that lie directly on the surface of an object. Xirus further includes subdivision, local refinement, the creation of watertight junctions with G0, G1, G2 smoothness control, full forward and backward NURBS compatibility as well as intuitive control and handling of corners, kinks, edges with smoothness and many other features. The Xirus kernel is currently freely available for Rhino 3D and can be downloaded at mirrakoi.com. New features are included in Xirus on a monthly basis. Examples, video tutorials, and 3D models are available at mirrakoi.com as well as on Mirrakoi’s youtube channel www.youtube.com/mirrakoi.