![]() ![]() We have provided recommendations for fallback solutions in the section at the bottom of this page. External factors inhibiting reliable eye tracking such as smudges on the HoloLens visor or eyeglasses, intense direct sunlight, and occlusions due to hair in front of the eyesĭevelopers should make sure to provide adequate support for users for whom eye tracking data may not be available (who aren't able to calibrate successfully).The user has certain eye physiology, eye conditions or had eye surgery, which the system doesn't yet support.The user has certain types of contact lenses and glasses, which the system doesn't yet support.The user got distracted and didn't follow the calibration targets.The user previously opted out of the calibration process.Calibration might fail for various reasons, including but not limited to: This allows the device to adjust the system for a more comfortable and higher quality viewing experience for the user and to ensure accurate eye tracking at the same time.Įye tracking should work for most users, but there are rare cases in which a user can't calibrate successfully. Calibrationįor eye tracking to work accurately, each user is required to go through an eye tracking user calibration for which the user has to look at a set of holographic targets. Download and enjoy the full experience here. This video was taken from the "Designing Holograms" HoloLens 2 app. When you've finished, continue on for a more detailed dive into specific topics. If you'd like to see Head and Eye Tracking design concepts in action, check out our Designing Holograms - Head Tracking and Eye Tracking video demo below. Head and eye tracking design concepts demo For eye-tracking capable applications, the user needs to grant app permission to use eye tracking information. This page explains how developers can benefit from eye tracking for various use cases, and what to look for when designing eye-gaze-based user interactions.Įye tracking API has been designed with a user’s privacy in mind, avoiding passing any identifiable information, particularly any biometrics. ![]() HoloLens 2 allows for a new level of context and human understanding within the holographic experience by providing developers with the ability to use information about what the user is looking at. ![]()
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