* Whether the face is visible from the vertex

* Android and iOS compatible wakelock implementation. * * Refactored thanks to dkovalev@.

* @author Michael Guerrero / http://realitymeltdown.com

* Everything having to do with the WebVR button. * Emits a 'click' event when it's clicked.

* The HMD itself, providing rendering parameters.

* An implementation of a simple complementary filter, which fuses gyroscope and * accelerometer data from the 'devicemotion' event. * * Acceleromet

* An implementation of a simple complementary filter, which fuses gyroscope and * accelerometer data from the 'devicemotion' event. * * Acceleromet

* Gives the correct device DPI based on screen dimensions and user agent. * For now, only iOS is supported.

* A 'deviceorientation' event-based orientation provider.

* The positional sensor, implemented using DeviceMotion APIs.

* The base class for all VR HMD devices.

* A virtual position sensor, implemented using keyboard and * mouse APIs. This is designed as for desktops/laptops where no Device* * events work.

* An OrientationFilter for fusing accelerometer and gyroscope data from the * devicemotion API. * * @param {Number} kProp controls the gravity est

* The positional sensor, implemented using web DeviceOrientation APIs.

* Given an orientation and the gyroscope data, predicts the future orientation * of the head. This makes rendering appear faster. * * Also see: htt

* Given an orientation and the gyroscope data, predicts the future orientation * of the head. This makes rendering appear faster. * * Also see: htt

* The base class for all VR position sensor devices.