finger of the glove when a finger touches an object in virtual reality; the CyberGrasp which actually simulates squeezing and touching of solid as well as spongy objects; and the CyberForce device which does all of the above and also measures the precise motion of the user's entire arm. In 2002, the P5 Glove was released by Essential Reality (hardware designed by Johathan Clarke and Leigh Boyd). In normal applications, it worked as a two-dimensional mouse and a few computer games were specially adapted to provide "3D" support for it. The P5 glove is compatible with Microsoft Windows XP and the classic Mac OS. Unofficial drivers for Linux exist as well. While it received some positive reviews from gadget and gaming magazines, its lack of compatible software and other issues caused it to remain a novelty. It has since been discontinued. Following the P5 Glove is 5th Glove. A data glove and flexor strip kit (5th Glove DFK) sold by Fifth Dimension Technologies. The package uses flexible optical-bending sensing to track hand and arm movement. The glove can be used with 5DT's ultrasonic tracking system, the 5DT Head and 5DT Hand tracker, which can track movement from up to two metres away from the unit's transmitter. Concerned about the high cost of the most complete commercial solutions, Pamplona et al. propose a new input device: an image-based data glove (IBDG). By attaching a camera to the hand of the user and a visual marker to each finger tip, they use computer vision techniques to estimate the relative position of the finger tips. Once they have information about the tips, they apply inverse kinematics techniques in order to estimate the position of each finger joint and recreate the movements of the fingers of the user in a virtual world. Adding a motion tracker device, one can also map pitch, yaw, roll and XYZ-translations of the hand of the user, (almost) recreating all the gesture and posture performed by the hand of the user in a low cost device. A modern alternative to inertial, optical and magnetic technology is the use of stretch sensors. New Zealand company StretchSense has developed the first stretch sensor enabled motion capture glove called the MoCap Pro. Stretch sensors are silicone-based flexible capacitors that measure stretch, bend, shear and pressure changes. The data can then be streamed into software platforms such as Unreal Engine, Unity and Maya