How do you simulate centrifugal forces in virtual reality? A group of researchers claim to have found a comparatively simple and effective method.
Headblaster is the name of the invention and consists of six air nozzles that have been attached to VR goggles in different arrangements. One points to the front, one to the back and four to the sides.
Depending on the direction and speed in which one is moving in the Virtual Reality the valves open and release compressed air, pushing the head in the opposite direction. Coupled with the visual simulation, this is supposed to create the feeling of moving at high speed. The air pressure nozzles can be programmed individually.
Better than movement platforms
The researchers see several advantages over expensive and large motion platforms that merely tilt the body. "Compared to motion platforms, the Headblaster gets closer to the way inertial and centrifugal forces are felt during real movement, and it ensures longer-lasting motion perception," the researchers write.
More mobility through portable technology
The team sees another advantage in the fact that only the head is moved instead of the whole body. This means that players are no longer chained to a movement platform and can move more freely.
However, this newly gained freedom of movement is also limited: Although the researchers speak of a wearable solution, the VR goggles must be connected to an air pressure device, which complicates the implementation.
To measure the effectiveness and durability of the perceived acceleration as well as the minimum threshold of perceptible forces, the researchers conducted a series of experiments. Then, for extended testing purposes, the group developed two VR demos: a surfing game and a racing simulator that additionally uses a motion platform.
According to the researchers, the acceleration feeling lasts longer with Headblaster than with a mechanical motion platform. The best effect is achieved through a combination of the two immersion techniques.
The study is accessible on the internet.
Source: Mixed
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