What you need to know about how virtual reality works


If you are considering trying virtual reality out, you should know how it works before you buy the VR headset. This article will go over some important points, including Frame rate, Field of view, lag time, Passive haptics, and more. Once you understand these aspects, you can decide if it is right. The technology behind virtual reality is amazing and certainly something to keep your eye on.

Frame rate

A virtual reality headset’s frame rate is critical to its immersive experience. The term refers to the number of frames presented per second and has become a source of controversy among VR developers. The human eye can discern images at up to a thousand frames per second, but above that, the information is lost in translation. VR developers generally strive for a minimum of 60 to 90 frames per second, and lower rates can cause simulation sickness.

A higher frame rate results in a more immersive VR experience. A higher frame rate also improves the realism of the virtual reality experience. The frame rate should be at least twice as high as the monitor’s refresh rate. While high frame rates make VR seem more real, they do not make it possible to avoid the ‘cybersickness’ experience.

The lower the frame rate, the higher the chance the user will feel disoriented, nauseous, and have other unpleasant impacts. Further, lower frame rates result in more distortion and blurred images, so it’s essential to aim for a high frame rate. 

Field of view

Virtual reality headsets often have different Field of View (FOV) settings, affecting how far you can see. Some models have wider FOVs, while the IPD of the headset hardware limits others. Other factors may influence your FOV, including prescription eye-wear. The most important consideration when designing a VR headset is the overall visual experience. 

For a VR headset to work correctly, its FoV must be appropriately set. The visible area of the virtual world cannot be significantly bigger than the actual FOV. The resulting FOV will be distorted and contain large sections of the unaugmented periphery. However, the good news is that you can adjust the FoV manually. The FOV is also known as the range of a virtual environment. In a VR headset, the FOV defines the area a user can see at any time. 

A 100-degree horizontal FOV allows the centre of the user’s vision to pivot 50 degrees left or right. However, a VR headset with a narrow FOV isn’t as immersive as a full-sized human eye, which has a FOV of only 50 degrees. The size of the FoV is an essential factor when designing a VR headset, so it’s vital to find the right size. And a good VR headset should be compatible with the user’s eyewear.

Lag time

The effects of lag time on user performance can vary depending on task complexity and computational load. For example, a surgical simulator could vary in complexity. It may be difficult for users to perform a surgical task accurately under these conditions if the time lag is higher than reality. To improve VR experiences, designers should consider these factors when designing their simulators. For instance, a patient could experience a delayed response if a simulation were too tricky for the patient’s eye movements.

The developers of the Oculus Rift headset have worked hard to reduce latency and have created a head tracker that works much faster than prepackaged solutions. Despite these efforts, the software cannot transmit a perfect three-dimensional perspective in a nanosecond. Furthermore, the screen’s refresh rate introduces significant latency to the VR world. Although this delay is less than one millisecond, it can still make the virtual environment unrecognizably unreal.

Passive haptics

Researchers have been researching the effects of passive haptics on navigation tasks using virtual reality. Passive haptics adds physical elements to virtual environments to increase the sense of presence and spatial knowledge training transfer. The technique uses low-fidelity physical models of objects to improve the simulation. You may check https://3dwalkabout.com.au/virtual-reality-brisbane/ to learn more about virtual reality.

Passive haptics are increasingly used in VR. They can increase the perceived realism level by altering how we perceive the virtual environment. Researchers found that using haptic priming increased feelings of rapport and the subjective measures of social interactions. The researchers recommend that immersive training system designers consider fidelity’s effect on users’ experience. Passive haptics can also improve the perception of distances and shapes.


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