Looking at -z by default.

immersive-web · Aug 26, 2016 · 3493948 · 3493948
1 parent 33d69cb
commit 3493948
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Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/build/webvr-polyfill.js b/build/webvr-polyfill.js
@@ -4543,8 +4543,8 @@ function ComplementaryFilter(kFilter) {
   this.currentGyroMeasurement = new SensorSample();
   this.previousGyroMeasurement = new SensorSample();
 
-  // Current filter orientation
-  this.filterQ = new MathUtil.Quaternion();
+  // Set the quaternion to be looking in the -z direction by default.
+  this.filterQ = new MathUtil.Quaternion(1, 0, 0, 1);
   this.previousFilterQ = new MathUtil.Quaternion();
 
   // Orientation based on the accelerometer.

diff --git a/src/sensor-fusion/complementary-filter.js b/src/sensor-fusion/complementary-filter.js
@@ -44,8 +44,8 @@ function ComplementaryFilter(kFilter) {
   this.currentGyroMeasurement = new SensorSample();
   this.previousGyroMeasurement = new SensorSample();
 
-  // Current filter orientation
-  this.filterQ = new MathUtil.Quaternion();
+  // Set the quaternion to be looking in the -z direction by default.
+  this.filterQ = new MathUtil.Quaternion(1, 0, 0, 1);
   this.previousFilterQ = new MathUtil.Quaternion();
 
   // Orientation based on the accelerometer.