/// <summary>
/// Initializes the eye texture.
/// </summary>
/// <param name="index">The index.</param>
/// <param name="eye">The eye.</param>
private void InitEyeTexture(int index, Eyes eye)
{
EyeParameter eyeParameter = this.eyeParameters[(int)eye];
// SceneTexture
int eyeIndex = index + ((int)eye * 2);
this.eyeTextures[eyeIndex] = new RenderTexture(
(int)eyeParameter.Resolution.x,
(int)eyeParameter.Resolution.y,
(int)VrManager.Instance.EyeTextureDepth,
VrManager.Instance.EyeTextureFormat)
{
antiAliasing = (int)VrManager.Instance.EyeTextureAntiAliasing
};
this.eyeTextures[eyeIndex].Create();
this.eyeTextureIds[eyeIndex] = this.eyeTextures[eyeIndex].GetNativeTexturePtr().ToInt32();
// GazeTexture
eyeIndex++;
this.eyeTextures[eyeIndex] = new RenderTexture(
(int)eyeParameter.Resolution.x,
(int)eyeParameter.Resolution.y,
(int)VrManager.Instance.EyeTextureDepth,
VrManager.Instance.EyeTextureFormat)
{
antiAliasing = (int)VrManager.Instance.EyeTextureAntiAliasing
};
this.eyeTextures[eyeIndex].Create();
this.eyeTextureIds[eyeIndex] = this.eyeTextures[eyeIndex].GetNativeTexturePtr().ToInt32();
}
/// <summary>
/// Initializes the eye texture.
/// </summary>
/// <param name="index">The index.</param>
/// <param name="eye">The eye.</param>
private void InitEyeTexture(int index, Eyes eye)
{
EyeParameter eyeParameter = this.eyeParameters[(int)eye];
// SceneTexture
int eyeIndex = index + ((int)eye);
#if UNITY_5_6
// it will occur native crash when using SetTargetBuffers function in 5.6.5
int eyeDepth = (int)VrManager.Instance.EyeTextureDepth;
#else
// use single depth buffer for each eye, create depth buffer only in first eye texture
int eyeDepth = index == 0 ? (int)VrManager.Instance.EyeTextureDepth : 0;
#endif
this.eyeTextures[eyeIndex] = new RenderTexture(
(int)eyeParameter.Resolution.x,
(int)eyeParameter.Resolution.y,
eyeDepth,
VrManager.Instance.EyeTextureFormat)
{
antiAliasing = (int)VrManager.Instance.EyeTextureAntiAliasing
};
this.eyeTextures[eyeIndex].Create();
this.eyeTextureIds[eyeIndex] = this.eyeTextures[eyeIndex].GetNativeTexturePtr().ToInt32();
}
// ********************************************************************************************************************
//
// Measure eye movements in a callback function that HTC SRanipal provides.
//
// ********************************************************************************************************************
void Measurement()
{
EyeParameter eye_parameter = new EyeParameter();
SRanipal_Eye_API.GetEyeParameter(ref eye_parameter);
Data_txt();
if (SRanipal_Eye_Framework.Instance.EnableEyeDataCallback == true && eye_callback_registered == false)
{
SRanipal_Eye_v2.WrapperRegisterEyeDataCallback(Marshal.GetFunctionPointerForDelegate((SRanipal_Eye_v2.CallbackBasic)EyeCallback));
eye_callback_registered = true;
}
else if (SRanipal_Eye_Framework.Instance.EnableEyeDataCallback == false && eye_callback_registered == true)
{
SRanipal_Eye_v2.WrapperUnRegisterEyeDataCallback(Marshal.GetFunctionPointerForDelegate((SRanipal_Eye_v2.CallbackBasic)EyeCallback));
eye_callback_registered = false;
}
}
private void OnGUI()
{
if (GUILayout.Button("Set Parameter"))
{
EyeParameter parameter = new EyeParameter
{
gaze_ray_parameter = new GazeRayParameter(),
};
Error error = SRanipal_Eye.GetEyeParameter(ref parameter);
Debug.Log("GetEyeParameter: " + error + "\n" +
"sensitive_factor: " + parameter.gaze_ray_parameter.sensitive_factor);
parameter.gaze_ray_parameter.sensitive_factor = parameter.gaze_ray_parameter.sensitive_factor == 1 ? 0.015f : 1;
error = SRanipal_Eye.SetEyeParameter(parameter);
Debug.Log("SetEyeParameter: " + error + "\n" +
"sensitive_factor: " + parameter.gaze_ray_parameter.sensitive_factor);
}
if (GUILayout.Button("Launch Calibration"))
{
SRanipal_Eye.LaunchEyeCalibration();
}
}
public static extern Error GetEyeParameter(ref EyeParameter parameter);
public static extern Error SetEyeParameter(EyeParameter parameter);
public float GetEyeParameter(Eye eye, EyeParameter param) => _GetEyeParameter(eye, param);
[DllImport("PimaxEyeTracker", EntryPoint = "GetEyeParameter")] private static extern float _GetEyeParameter(Eye eye, EyeParameter param);
// ********************************************************************************************************************
//
// Callback function to record the eye movement data.
// Note that SRanipal_Eye_v2 does not work in the function below. It only works under UnityEngine.
//
// ********************************************************************************************************************
private static void EyeCallback(ref EyeData_v2 eye_data)
{
EyeParameter eye_parameter = new EyeParameter();
SRanipal_Eye_API.GetEyeParameter(ref eye_parameter);
eyeData = eye_data;
// ----------------------------------------------------------------------------------------------------------------
// Measure eye movements at the frequency of 120Hz until framecount reaches the maxframe count set.
// ----------------------------------------------------------------------------------------------------------------
while (cnt_callback < maxframe_count)
{
ViveSR.Error error = SRanipal_Eye_API.GetEyeData_v2(ref eyeData);
if (error == ViveSR.Error.WORK)
{
// --------------------------------------------------------------------------------------------------------
// Measure each parameter of eye data that are specified in the guideline of SRanipal SDK.
// --------------------------------------------------------------------------------------------------------
MeasureTime = DateTime.Now.Ticks;
time_stamp = eyeData.timestamp;
frame = eyeData.frame_sequence;
eye_valid_L = eyeData.verbose_data.left.eye_data_validata_bit_mask;
eye_valid_R = eyeData.verbose_data.right.eye_data_validata_bit_mask;
openness_L = eyeData.verbose_data.left.eye_openness;
openness_R = eyeData.verbose_data.right.eye_openness;
pupil_diameter_L = eyeData.verbose_data.left.pupil_diameter_mm;
pupil_diameter_R = eyeData.verbose_data.right.pupil_diameter_mm;
pos_sensor_L = eyeData.verbose_data.left.pupil_position_in_sensor_area;
pos_sensor_R = eyeData.verbose_data.right.pupil_position_in_sensor_area;
gaze_origin_L = eyeData.verbose_data.left.gaze_origin_mm;
gaze_origin_R = eyeData.verbose_data.right.gaze_origin_mm;
gaze_direct_L = eyeData.verbose_data.left.gaze_direction_normalized;
gaze_direct_R = eyeData.verbose_data.right.gaze_direction_normalized;
gaze_sensitive = eye_parameter.gaze_ray_parameter.sensitive_factor;
frown_L = eyeData.expression_data.left.eye_frown;
frown_R = eyeData.expression_data.right.eye_frown;
squeeze_L = eyeData.expression_data.left.eye_squeeze;
squeeze_R = eyeData.expression_data.right.eye_squeeze;
wide_L = eyeData.expression_data.left.eye_wide;
wide_R = eyeData.expression_data.right.eye_wide;
distance_valid_C = eyeData.verbose_data.combined.convergence_distance_validity;
distance_C = eyeData.verbose_data.combined.convergence_distance_mm;
track_imp_cnt = eyeData.verbose_data.tracking_improvements.count;
////track_imp_item = eyeData.verbose_data.tracking_improvements.items;
// Convert the measured data to string data to write in a text file.
string value =
MeasureTime.ToString() + "," +
time_stamp.ToString() + "," +
frame.ToString() + "," +
eye_valid_L.ToString() + "," +
eye_valid_R.ToString() + "," +
openness_L.ToString() + "," +
openness_R.ToString() + "," +
pupil_diameter_L.ToString() + "," +
pupil_diameter_R.ToString() + "," +
pos_sensor_L.x.ToString() + "," +
pos_sensor_L.y.ToString() + "," +
pos_sensor_R.x.ToString() + "," +
pos_sensor_R.y.ToString() + "," +
gaze_origin_L.x.ToString() + "," +
gaze_origin_L.y.ToString() + "," +
gaze_origin_L.z.ToString() + "," +
gaze_origin_R.x.ToString() + "," +
gaze_origin_R.y.ToString() + "," +
gaze_origin_R.z.ToString() + "," +
gaze_direct_L.x.ToString() + "," +
gaze_direct_L.y.ToString() + "," +
gaze_direct_L.z.ToString() + "," +
gaze_direct_R.x.ToString() + "," +
gaze_direct_R.y.ToString() + "," +
gaze_direct_R.z.ToString() + "," +
gaze_sensitive.ToString() + "," +
frown_L.ToString() + "," +
frown_R.ToString() + "," +
squeeze_L.ToString() + "," +
squeeze_R.ToString() + "," +
wide_L.ToString() + "," +
wide_R.ToString() + "," +
distance_valid_C.ToString() + "," +
distance_C.ToString() + "," +
track_imp_cnt.ToString() +
//track_imp_item.ToString() +
Environment.NewLine;
File.AppendAllText("StandardSaccade_" + UserID + ".txt", value);
cnt_callback++;
}
// Break while loop 3 seconds after the saccade tasks are completed. We know the timing at this point by time information.
CurrentTime = DateTime.Now.Ticks;
MeasureEndTime = GetSaccadeEndTime();
if ((CurrentTime - MeasureEndTime > 3 * 10000000) && MeasureEndTime != 0)
{
break;
}
}
}
