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Transcript of Technical Summary
The heart of the VR system is a powerful computer with programs that can produce complex, 3D images.
Devices send information from the computer to user's senses: sight, hearing, touch, and smell and even taste.
Other devices pick up information about the user's body and hand movement, voice, and even thoughts, and process this information to the computer.
Sensors on the head...
Sensors in gloves...
Sensors on the body...
Sensors in tools such as wands, 3D mice, and force balls...
The computer receives information about the user's actions from sensors or trackers attached to the head, hands, or other parts of the body.
Sound, Touch, and Smell
The computer in a virtual reality system uses sound as well as vision to create the illusion of a three-dimensional environment.
Systems featuring head-mounted displays (HMD) use tiny speakers in the HMD's helmet.
The computer changes the signals coming through these speakers to reflect the user's movements.
Many virtual reality systems include gloves or other devices that convey a sense of touch.
A computer can transmit touch sensations to a whole hand or arm by means of a framework.
Pick up complex data
Translates the information
Head Mounted Display-HMD
Two main types of virtual reality systems are used today.
Head Mounted Displays (HMD)
CAVE -Cave Automatic Virtual Environment
An immersive virtual reality environment where projectors are directed to three, four, five or six of walls of a room-sized cube.
The walls of the CAVE are made up of rear-projection screens, and the floor is made of a down-projection screen.
The user will go inside of the CAVE wearing special glasses to allow for the 3-D graphics.
See objects floating in the air.
Walk around them---getting a proper view of what the object would look like.
Major Tools for VR
Head Mounted Displays (HMD)
A few experimental systems have even added smell to virtual reality displays.
3D glasses are used in a movie theater to feed different images into your eyes.
The screen displays two images:the glasses cause one of the images to enter one eye and the other to enter the other eye.
The brain puts the two pictures together to form one 3D image that has depth to it.
Cotton candy, Ocean breezes
The first device with an immersive experience.
Two miniature display screens and an optical system
The viewer can look around and walk through the surrounding virtual world.
is one of the most impressive immersive technology.
made possible with electromagnetic sensors
Communicating with users