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Room-scale
Room-scale is a design paradigm for virtual reality (VR) experiences which allows users to freely walk around a play area, with their real-life motion reflected in the VR environment. Using 360 degree tracking equipment such as infrared sensors, the VR system monitors the user's movement in all directions, and translates this into the virtual world in real-time. This allows the player to perform tasks, such as walking across a room and picking up a key from a table, using natural movements. In contrast, a stationary VR experience might have the player navigate across the room using a joystick or other input device, which may cause motion sickness. The HTC Vive virtual-reality system incorporates room-scale tracking in its core design, using two infrared tracking stations located in opposite corners of the room to monitor the movement of the player. Its SteamVR tracking technology is developed by Valve and allows areas up to 10 m x 10 m. The Oculus Rift Oculus Rift is a discont ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oculus Rift
Oculus Rift is a discontinued line of virtual reality headsets, virtual reality headsets developed and manufactured by Oculus VR, a virtual reality company founded by Palmer Luckey that is widely credited with reviving the virtual reality industry. It was the first virtual reality headset to provide a realistic experience at an accessible price, utilizing novel technology to increase quality and reduce cost by orders of magnitude compared to earlier systems. The first headset in the line was the Oculus Rift DK1, released on March 28, 2013. The last was the Oculus Rift S, discontinued in April 2021. The Rift went through various pre-production models prior to the release of the Oculus Rift CV1, the first Oculus Rift intended for use by the general public. Two of these, the DK1 in early-2013 and DK2 in mid-2014, were intended to provide content developers with a Software development kit, development kit platform to create content for the Rift's eventual consumer release. However, b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virtual Reality Sickness
Virtual reality sickness (VR sickness) occurs when exposure to a virtual environment causes symptoms that are similar to motion sickness symptoms. The most common symptoms are general discomfort, eye strain, headache, stomach awareness, nausea, vomiting, pallor, sweating, fatigue, drowsiness, disorientation, and apathy. Other symptoms include postural instability and retching. Common causes are low frame rate, input lag, and the vergence-accommodation-conflict. Virtual reality sickness is different from motion sickness in that it can be caused by the visually-induced perception of self-motion; real self-motion is not needed. It is also different from simulator sickness; non-virtual reality simulator sickness tends to be characterized by oculomotor disturbances, whereas virtual reality sickness tends to be characterized by disorientation. Consequences Virtual reality sickness may have undesirable consequences beyond the sickness itself. For example, Crowley (1987) argued th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HTC Vive
HTC Vive is a line of Virtual reality, virtual and mixed reality Virtual reality headset, headsets produced by HTC, HTC Corporation. The brand currently encompasses headsets designed for use with Personal computer, personal computers as well as standalone headsets such as the Vive Focus line, Vive Flow glasses, and the Vive Elite XR mixed reality headset. The first-generation Vive was announced in 2015, as part of a collaboration with video game studio and distributor Valve Corporation, and implementing its VR software and hardware platform SteamVR; the first-generation consumer model was released in April 2016. It has since been succeeded by newer models with upgraded specifications. HTC has also released accessories that integrate with the Vive and SteamVR, including sensors for motion capture and facial capture. Since 2021, HTC has targeted the Vive line towards the business and enterprise markets, moving away from the consumer market. Development Prototypes of a Valve-p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virtual Reality
Virtual reality (VR) is a Simulation, simulated experience that employs 3D near-eye displays and pose tracking to give the user an immersive feel of a virtual world. Applications of virtual reality include entertainment (particularly video games), education (such as medical, safety, or military training) and business (such as virtual meetings). VR is one of the key technologies in the Reality–virtuality continuum, reality-virtuality continuum. As such, it is different from other digital visualization solutions, such as augmented virtuality and augmented reality. Currently, standard virtual reality systems use either virtual reality headsets or multi-projected environments to generate some realistic images, sounds, and other sensations that simulate a user's physical presence in a virtual environment. A person using virtual reality equipment is able to look around the artificial world, move around in it, and interact with virtual features or items. The effect is commonly creat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Positional Tracking
In 3D human-computer interaction, positional tracking, also called pose tracking, is a process that tracks the position and/or orientation of head-mounted displays, controllers, or other input devices within Euclidean space. Pose tracking is often referred to as 6DOF tracking, for the six degrees of freedom in which the objects are often tracked. In some consumer GPS systems, orientation data is added additionally using magnetometers, which give partial orientation information, but not the full orientation that pose tracking provides. In VR, it is paramount that pose tracking is both accurate and precise so as not to break the illusion of a being in virtual world. Several methods of tracking the position and orientation (pitch, yaw and roll) of a display and any associated objects or devices have been developed to achieve this. Many methods utilize sensors which repeatedly record signals from transmitters on or near the tracked object(s), and then send that data to the comput ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
