英文:
Is there a problem using ARFace with Android and ARCore, because some properties appear to be null always?
问题
我正在开发一个使用Unity的Android应用，它使用眼动追踪。我正在使用ARFoundation和ARCore。问题是，当我追踪脸部时，ARFace.leftEye、ARFace.rightEye和ARFace.fixationPoint都是null。我不知道这是因为ARCore不支持ARFace的这些属性，只有iOS支持，因为我看到一个iOS项目可以使用ARKit实现这个功能。如果有人知道这是Android的问题还是这些属性为null有其他原因，我将不胜感激。
我已尝试追踪脸部，然后追踪脸部的眼睛。我已成功追踪脸部使用ARFaceManager和ARFace，但当我尝试获取ARFace的leftEye和rightEye时，它们似乎为null。这不应该发生。此外，fixationPoint也为null，但脸部追踪正确，ARFace的其他属性，如顶点，不为null，所以我猜想ARCore和Android之间可能存在某种问题。
英文:
I am working on an Android app that uses eye tracking with Unity. I am using ARFoundation and ARCore. The problem is that when i track a face, and i have the component ARFace, the ARFace.leftEye, ARFace.rightEye and ARFace.fixationPoint are null. I dont know if this is because ARCore does not support this properties of the ARFace and only IOS does because i saw an IOS project that could do this with the ARKit. If anyone knows if its an Android problem or these properties are null for any other reason i would apreciate support.
I've tried to track a face and then track the eyes of the face. I've been able to track the face with ARFaceManager and ARFace but when i try to take the leftEye and rightEye of the ARFace it appears to be null. This shouldn´t happen. Also the fixationPoint is null but the face is tracked correctly and other properties such as the vertices of the ARFace are not null so i guess there has to be some kind of problem with ARCore and Android.
答案1
得分: 0
ARCore不支持眼睛追踪，只有ARKit支持。同样，ARCore不支持面部混合形状（blend shapes），就像ARKit一样。目前，ARCore提供的只有面部网格和对三个面部区域的跟踪，即鼻尖、左额和右额。请参考ARCore文档，网址为 https://docs.unity3d.com/Packages/com.unity.xr.arcore@3.0/api/UnityEngine.XR.ARCore.html。
英文:
ARCore does not support eye tracking, only ARKit. Similarly, ARCore does not support blend shapes for the face like ARKit. All you get with ARCore at this time is a face mesh and tracking of three face regions, the nose tip, and the left and right forehead. See the ARCore documentation at https://docs.unity3d.com/Packages/com.unity.xr.arcore@3.0/api/UnityEngine.XR.ARCore.html.
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