I am looking to capture and save eye-tracking metrics like gaze vectors and pupil dilation data from the Quest Pro device. I have already set up eye tracking and enabled cloud backup, but I am having trouble with the actual data saving process. I attempted to follow a tutorial on the Oculus developer site but didn't achieve the desired result. I wrote the script below to record and save eye-tracking data, but this does not work.
Any help would be appreciated.
using UnityEngine;
using System.IO;
using UnityEngine.XR;
using Unity.XR.Oculus;
public class EyeTrackingDataRecorder : MonoBehaviour
{
private string dataPath;
void Start()
{
// Define the data path where the eye tracking data will be stored.
dataPath = Application.persistentDataPath + "/EyeTrackingData.csv";
// Write the CSV header
WriteData("Timestamp,LeftEyeDirectionX,LeftEyeDirectionY,LeftEyeDirectionZ,RightEyeDirectionX,RightEyeDirectionY,RightEyeDirectionZ\n");
}
void Update()
{
if (OVRManager.isHmdPresent)
{
// Fetch the latest eye tracking data from the OVRPlugin
var eyeTrackingData = OVRPlugin.GetEyeTrackingData(OVRPlugin.Eye.All);
if (eyeTrackingData.IsValid)
{
// Assuming you're using the combined gaze direction
Vector3 leftEyeDirection = eyeTrackingData.LeftEyeGazeDirection;
Vector3 rightEyeDirection = eyeTrackingData.RightEyeGazeDirection;
// Construct the data string
string dataString = $"{Time.timeSinceLevelLoad},{leftEyeDirection.x},{leftEyeDirection.y},{leftEyeDirection.z},{rightEyeDirection.x},{rightEyeDirection.y},{rightEyeDirection.z}\n";
// Write the data string to the file
WriteData(dataString);
}
}
}
private void WriteData(string dataString)
{
// Append the data string to the file at dataPath
File.AppendAllText(dataPath, dataString);
}
void OnApplicationQuit()
{
// Cleanup if needed
}
}
