Virtual reality is taking off; indeed, it is on the verge of mass availability. But which of the many form factors and underlying principles will it be?
The late 1960s were a defining moment in the long evolution of virtual reality. At that time, Ivan Sutherland explored his dream of an immersive world. By creating the world's first head-worn display driven by 3D graphics, he opened a window into a computer-generated world. He combined his 'Sword of Damocles' display system with a method for tracking the user's head, allowing users to look around in a simple virtual world, creating a strong sense of immersion.
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