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three

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JavaScript 3D library

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console.warn( "THREE.DeviceOrientationControls: As part of the transition to ES6 Modules, the files in 'examples/js' were deprecated in May 2020 (r117) and will be deleted in December 2020 (r124). You can find more information about developing using ES6 Modules in https://threejs.org/docs/#manual/en/introduction/Installation." ); /** * W3C Device Orientation control (http://w3c.github.io/deviceorientation/spec-source-orientation.html) */ THREE.DeviceOrientationControls = function ( object ) { var scope = this; this.object = object; this.object.rotation.reorder( 'YXZ' ); this.enabled = true; this.deviceOrientation = {}; this.screenOrientation = 0; this.alphaOffset = 0; // radians var onDeviceOrientationChangeEvent = function ( event ) { scope.deviceOrientation = event; }; var onScreenOrientationChangeEvent = function () { scope.screenOrientation = window.orientation || 0; }; // The angles alpha, beta and gamma form a set of intrinsic Tait-Bryan angles of type Z-X'-Y'' var setObjectQuaternion = function () { var zee = new THREE.Vector3( 0, 0, 1 ); var euler = new THREE.Euler(); var q0 = new THREE.Quaternion(); var q1 = new THREE.Quaternion( - Math.sqrt( 0.5 ), 0, 0, Math.sqrt( 0.5 ) ); // - PI/2 around the x-axis return function ( quaternion, alpha, beta, gamma, orient ) { euler.set( beta, alpha, - gamma, 'YXZ' ); // 'ZXY' for the device, but 'YXZ' for us quaternion.setFromEuler( euler ); // orient the device quaternion.multiply( q1 ); // camera looks out the back of the device, not the top quaternion.multiply( q0.setFromAxisAngle( zee, - orient ) ); // adjust for screen orientation }; }(); this.connect = function () { onScreenOrientationChangeEvent(); // run once on load // iOS 13+ if ( window.DeviceOrientationEvent !== undefined && typeof window.DeviceOrientationEvent.requestPermission === 'function' ) { window.DeviceOrientationEvent.requestPermission().then( function ( response ) { if ( response == 'granted' ) { window.addEventListener( 'orientationchange', onScreenOrientationChangeEvent, false ); window.addEventListener( 'deviceorientation', onDeviceOrientationChangeEvent, false ); } } ).catch( function ( error ) { console.error( 'THREE.DeviceOrientationControls: Unable to use DeviceOrientation API:', error ); } ); } else { window.addEventListener( 'orientationchange', onScreenOrientationChangeEvent, false ); window.addEventListener( 'deviceorientation', onDeviceOrientationChangeEvent, false ); } scope.enabled = true; }; this.disconnect = function () { window.removeEventListener( 'orientationchange', onScreenOrientationChangeEvent, false ); window.removeEventListener( 'deviceorientation', onDeviceOrientationChangeEvent, false ); scope.enabled = false; }; this.update = function () { if ( scope.enabled === false ) return; var device = scope.deviceOrientation; if ( device ) { var alpha = device.alpha ? THREE.MathUtils.degToRad( device.alpha ) + scope.alphaOffset : 0; // Z var beta = device.beta ? THREE.MathUtils.degToRad( device.beta ) : 0; // X' var gamma = device.gamma ? THREE.MathUtils.degToRad( device.gamma ) : 0; // Y'' var orient = scope.screenOrientation ? THREE.MathUtils.degToRad( scope.screenOrientation ) : 0; // O setObjectQuaternion( scope.object.quaternion, alpha, beta, gamma, orient ); } }; this.dispose = function () { scope.disconnect(); }; this.connect(); };