2024-02-16 16:15:29
Testes carried out by a specialized company Optofidelity concluded that the Apple Vision Pro has the smallest transparent latency (see-through transparency) among the main mixed reality devices on the market — including Meta Quests, considered the device’s main competitors.
Basically, transparent latency, also called photon-to-photon latency (photon-to-photon), is the time it takes for the image of the real world (that is, everything that is not virtual and that is not part of software elements) to be transferred from the headset to the user’s vision.
As users are not actually seeing the environment in front of them with the naked eye — but rather images captured by the devices’ cameras — the lower the latency, the greater the user’s perception that they are following events around them in real time. .
In addition to the Vision Pro, the Meta Quest 3 and the Meta Quest Pro, the tests included the HTC VIVE XR Elite. While all competitors have latency between 35ms and 40ms — a standard previously considered good —, Maçã’s headset has a delay almost 4 times shorter, 11ms.
It is a very satisfactory result for Apple, which claimed to have achieved an innovative reduction in latency in the Vision Pro. Tests showed that the headset performed even better than what the company announced, which promised a delay of 12ms — 1ms more than that obtained in the test.
Apple loses to Meta on angular movement latency
In other tests carried out by the company, the four headsets were compared in terms of angular latencywhich basically measures the ability (or inability) of mixed reality devices to predict the movement of the user’s head to present a coherent image of the environment.
As highlighted by the 9to5Macsome headsets simply “cheat” by using the images already captured by the side cameras before the user’s head is directed into that field of vision, displaying this frame in advance to compensate for the natural delay as the user turns their head.
The tests showed that Meta Quest Pro and Meta Quest 3 presented the best results, with latencies closer to the ideal value (0), while Vision Pro presented more negative numbers — which means that its prediction is usually a little more advanced. than it should be.
The HTC VIVE XR Elite, in turn, presented only unchanged positive values, indicating that the device does not use angular latency prediction like the others, displaying images with their natural delay.
In any case, both this latency and the “advance” of the Vision Pro are imperceptible to the human eye, so we can consider that the four devices have no angular latency, in practice.
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