@egjs/view360/dist/view360.min.js

360 integrated viewing solution from inside-out view to outside-in view. It provides user-friendly service by rotating 360 degrees through various user interaction such as motion sensor and touch.

/*
Copyright (c) 2017 NAVER Corp.
@egjs/view360 project is licensed under the MIT license
@egjs/view360 JavaScript library
https://github.com/naver/egjs-view360
@version 3.2.2-rc
*/
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e=!(null==t.rotationRate.alpha),i=!(null==t.accelerationIncludingGravity.x);if(0!==t.interval&&e&&i){var n=c({},t);n.interval=t.interval,n.timeStamp=t.timeStamp,n.type=t.type,n.rotationRate={alpha:t.rotationRate.alpha,beta:t.rotationRate.beta,gamma:t.rotationRate.gamma},n.accelerationIncludingGravity={x:t.accelerationIncludingGravity.x,y:t.accelerationIncludingGravity.y,z:t.accelerationIncludingGravity.z},n.acceleration={x:t.acceleration.x,y:t.acceleration.y,z:t.acceleration.z},this.isAndroid&&(L.set(this.rawGyroVec,t.rotationRate.alpha||0,t.rotationRate.beta||0,t.rotationRate.gamma||0),L.subtract(this.adjustedGyroVec,this.rawGyroVec,this.stillGyroVec),this.lastDevicemotionTimestamp=(new Date).getTime(),n.adjustedRotationRate={alpha:this.adjustedGyroVec[0],beta:this.adjustedGyroVec[1],gamma:this.adjustedGyroVec[2]}),this.trigger("devicemotion",{inputEvent:n})}},i.enable=function(){this.isAndroid&&r.addEventListener("deviceorientation",this._onDeviceOrientation),this.isWithoutDeviceMotion?r.addEventListener("deviceorientation",this._onChromeWithoutDeviceMotion):r.addEventListener("devicemotion",this._onDeviceMotion),this._isEnabled=!0},i.disable=function(){r.removeEventListener("deviceorientation",this._onDeviceOrientation),r.removeEventListener("deviceorientation",this._onChromeWithoutDeviceMotion),r.removeEventListener("devicemotion",this._onDeviceMotion),this._isEnabled=!1},t}(e);function J(t,e){this.set(t,e)}J.prototype.set=function(t,e){this.sample=t,this.timestampS=e},J.prototype.copy=function(t){this.set(t.sample,t.timestampS)};var $=J;function tt(t){this.kFilter=t,this.currentAccelMeasurement=new $,this.currentGyroMeasurement=new $,this.previousGyroMeasurement=new $,P.isIOS()?this.filterQ=new S.Quaternion(-1,0,0,1):this.filterQ=new S.Quaternion(1,0,0,1),this.previousFilterQ=new S.Quaternion,this.previousFilterQ.copy(this.filterQ),this.accelQ=new S.Quaternion,this.isOrientationInitialized=!1,this.estimatedGravity=new S.Vector3,this.measuredGravity=new S.Vector3,this.gyroIntegralQ=new S.Quaternion}tt.prototype.addAccelMeasurement=function(t,e){this.currentAccelMeasurement.set(t,e)},tt.prototype.addGyroMeasurement=function(t,e){this.currentGyroMeasurement.set(t,e);var i=e-this.previousGyroMeasurement.timestampS;P.isTimestampDeltaValid(i)&&this.run_(),this.previousGyroMeasurement.copy(this.currentGyroMeasurement)},tt.prototype.run_=function(){if(!this.isOrientationInitialized)return this.accelQ=this.accelToQuaternion_(this.currentAccelMeasurement.sample),this.previousFilterQ.copy(this.accelQ),void(this.isOrientationInitialized=!0);var t=this.currentGyroMeasurement.timestampS-this.previousGyroMeasurement.timestampS,e=this.gyroToQuaternionDelta_(this.currentGyroMeasurement.sample,t);this.gyroIntegralQ.multiply(e),this.filterQ.copy(this.previousFilterQ),this.filterQ.multiply(e);var i=new S.Quaternion;i.copy(this.filterQ),i.inverse(),this.estimatedGravity.set(0,0,-1),this.estimatedGravity.applyQuaternion(i),this.estimatedGravity.normalize(),this.measuredGravity.copy(this.currentAccelMeasurement.sample),this.measuredGravity.normalize();var n=new S.Quaternion;n.setFromUnitVectors(this.estimatedGravity,this.measuredGravity),n.inverse(),P.isDebug()&&console.log("Delta: %d deg, G_est: (%s, %s, %s), G_meas: (%s, %s, %s)",S.radToDeg*P.getQuaternionAngle(n),this.estimatedGravity.x.toFixed(1),this.estimatedGravity.y.toFixed(1),this.estimatedGravity.z.toFixed(1),this.measuredGravity.x.toFixed(1),this.measuredGravity.y.toFixed(1),this.measuredGravity.z.toFixed(1));var r=new S.Quaternion;r.copy(this.filterQ),r.multiply(n),this.filterQ.slerp(r,1-this.kFilter),this.previousFilterQ.copy(this.filterQ)},tt.prototype.getOrientation=function(){return this.filterQ},tt.prototype.accelToQuaternion_=function(t){var e=new S.Vector3;e.copy(t),e.normalize();var i=new S.Quaternion;return i.setFromUnitVectors(new S.Vector3(0,0,-1),e),i.inverse(),i},tt.prototype.gyroToQuaternionDelta_=function(t,e){var i=new S.Quaternion,n=new S.Vector3;return n.copy(t),n.normalize(),i.setFromAxisAngle(n,t.length()*e),i};var et=tt;et.prototype.run_=function(){if(!this.isOrientationInitialized)return this.accelQ=this.accelToQuaternion_(this.currentAccelMeasurement.sample),this.previousFilterQ.copy(this.accelQ),void(this.isOrientationInitialized=!0);var t=this.currentGyroMeasurement.timestampS-this.previousGyroMeasurement.timestampS,e=this.gyroToQuaternionDelta_(this.currentGyroMeasurement.sample,t);this.gyroIntegralQ.multiply(e),this.filterQ.copy(this.previousFilterQ),this.filterQ.multiply(e);var i=new S.Quaternion;i.copy(this.filterQ),i.inverse(),this.estimatedGravity.set(0,0,-1),this.estimatedGravity.applyQuaternion(i),this.estimatedGravity.normalize(),this.measuredGravity.copy(this.currentAccelMeasurement.sample),this.measuredGravity.normalize();var n=new S.Quaternion;n.setFromUnitVectors(this.estimatedGravity,this.measuredGravity),n.inverse();var r=new S.Quaternion;r.copy(this.filterQ),r.multiply(n),this.filterQ.slerp(r,1-this.kFilter),this.previousFilterQ.copy(this.filterQ),this.isFilterQuaternionInitialized||(this.isFilterQuaternionInitialized=!0)},et.prototype.getOrientation=function(){return this.isFilterQuaternionInitialized?this.filterQ:null};var it=function(e){function t(){var t;return(t=e.call(this)||this).deviceMotion=new Z,t.accelerometer=new S.Vector3,t.gyroscope=new S.Vector3,t._onDeviceMotionChange=t._onDeviceMotionChange.bind(u(u(t))),t._onScreenOrientationChange=t._onScreenOrientationChange.bind(u(u(t))),t.filter=new et(.98),t.posePredictor=new M(.04),t.filterToWorldQ=new S.Quaternion,t.isFirefoxAndroid=P.isFirefoxAndroid(),t.isIOS=P.isIOS(),t.isChromeUsingDegrees=66<=k,t._isEnabled=!1,t.isIOS?t.filterToWorldQ.setFromAxisAngle(new S.Vector3(1,0,0),Math.PI/2):t.filterToWorldQ.setFromAxisAngle(new S.Vector3(1,0,0),-Math.PI/2),t.inverseWorldToScreenQ=new S.Quaternion,t.worldToScreenQ=new S.Quaternion,t.originalPoseAdjustQ=new S.Quaternion,t.originalPoseAdjustQ.setFromAxisAngle(new S.Vector3(0,0,1),-r.orientation*Math.PI/180),t._setScreenTransform(),P.isLandscapeMode()&&t.filterToWorldQ.multiply(t.inverseWorldToScreenQ),t.resetQ=new S.Quaternion,t.deviceMotion.on("devicemotion",t._onDeviceMotionChange),t.enable(),t}d(t,e);var i=t.prototype;return i.enable=function(){this.isEnabled()||(this.deviceMotion.enable(),this._isEnabled=!0,r.addEventListener("orientationchange",this._onScreenOrientationChange))},i.disable=function(){this.isEnabled()&&(this.deviceMotion.disable(),this._isEnabled=!1,r.removeEventListener("orientationchange",this._onScreenOrientationChange))},i.isEnabled=function(){return this._isEnabled},i.destroy=function(){this.disable(),this.deviceMotion=null},i._triggerChange=function(){var t=this.getOrientation();t&&(this._prevOrientation?F.equals(this._prevOrientation,t)||this.trigger("change",{quaternion:t}):this._prevOrientation=t)},i.getOrientation=function(){var t;if(this.deviceMotion.isWithoutDeviceMotion&&this._deviceOrientationQ){this.deviceOrientationFixQ=this.deviceOrientationFixQ||function(){return(new S.Quaternion).setFromAxisAngle(new S.Vector3(0,1,0),-this._alpha)}.bind(this)(),t=this._deviceOrientationQ;var e=new S.Quaternion;e.copy(t),e.multiply(this.filterToWorldQ),e.multiply(this.resetQ),e.multiply(this.worldToScreenQ),e.multiplyQuaternions(this.deviceOrientationFixQ,e);var i=F.fromValues(e.x,e.y,e.z,e.w);return F.normalize(i,i)}if(!(t=this.filter.getOrientation()))return null;var n=this._convertFusionToPredicted(t),r=F.fromValues(n.x,n.y,n.z,n.w);return F.normalize(r,r)},i._convertFusionToPredicted=function(t){this.predictedQ=this.posePredictor.getPrediction(t,this.gyroscope,this.previousTimestampS);var e=new S.Quaternion;return e.copy(this.filterToWorldQ),e.multiply(this.resetQ),e.multiply(this.predictedQ),e.multiply(this.worldToScreenQ),e},i._onDeviceMotionChange=function(t){var e=t.inputEvent,i=e.deviceorientation,n=e,r=n.accelerationIncludingGravity,o=n.adjustedRotationRate||n.rotationRate,a=n.timeStamp/1e3;i?(this._alpha||(this._alpha=i.alpha),this._deviceOrientationQ=this._deviceOrientationQ||new S.Quaternion,this._deviceOrientationQ.setFromEulerYXZ(i.beta,i.alpha,i.gamma),this._triggerChange()):(this.isFirefoxAndroid&&(a/=1e3),this.accelerometer.set(-r.x,-r.y,-r.z),this.gyroscope.set(o.alpha,o.beta,o.gamma),(this.isIOS||this.isFirefoxAndroid||this.isChromeUsingDegrees)&&this.gyroscope.multiplyScalar(Math.PI/180),this.filter.addAccelMeasurement(this.accelerometer,a),this.filter.addGyroMeasurement(this.gyroscope,a),this._triggerChange(),this.previousTimestampS=a)},i._onScreenOrientationChange=function(t){this._setScreenTransform(r.orientation)},i._setScreenTransform=function(){switch(this.worldToScreenQ.set(0,0,0,1),r.orientation){case 0:break;case 90:this.worldToScreenQ.setFromAxisAngle(new S.Vector3(0,0,1),-.5*Math.PI);break;case-90:this.worldToScreenQ.setFromAxisAngle(new S.Vector3(0,0,1),.5*Math.PI);break;case 180:this.worldToScreenQ.setFromAxisAngle(new S.Vector3(0,0,1),-1*Math.PI)}this.inverseWorldToScreenQ.copy(this.worldToScreenQ),this.inverseWorldToScreenQ.inverse()},t}(e);var nt=function(n){function t(t,e){var i;return(i=n.call(this)||this).element=t,i._prevQuaternion=null,i._quaternion=null,i.fusionPoseSensor=null,i.options=c({scale:1,threshold:0},e),i._onPoseChange=i._onPoseChange.bind(u(u(i))),i}d(t,n);var e=t.prototype;return e.mapAxes=function(t){this.axes=t},e.connect=function(t){return this.observer||(this.observer=t,this.fusionPoseSensor=new it,this.fusionPoseSensor.enable(),this._attachEvent()),this},e.disconnect=function(){return this.observer&&(this._dettachEvent(),this.fusionPoseSensor.disable(),this.fusionPoseSensor.destroy(),this.fusionPoseSensor=null,this.observer=null),this},e.destroy=function(){this.disconnect(),this.element=null,this.options=null,this.axes=null,this._prevQuaternion=null,this._quaternion=null},e._onPoseChange=function(t){if(!this._prevQuaternion)return this._prevQuaternion=F.clone(t.quaternion),void(this._quaternion=F.clone(t.quaternion));var n,e,i,r,o,a;F.copy(this._prevQuaternion,this._quaternion),F.copy(this._quaternion,t.quaternion),this.observer.change(this,t,(n=this.axes,[(r=this._prevQuaternion,o=this._quaternion,a=Q.getRotationDelta(r,o,z.YAW_DELTA_BY_YAW),Q.getRotationDelta(r,o,z.YAW_DELTA_BY_ROLL)*Math.sin(Q.extractPitchFromQuat(o))+a),(e=this._prevQuaternion,i=this._quaternion,Q.getRotationDelta(e,i,z.PITCH_DELTA))].reduce(function(t,e,i){return n[i]&&(t[n[i]]=e),t},{})))},e._attachEvent=function(){this.fusionPoseSensor.on("change",this._onPoseChange)},e._dettachEvent=function(){this.fusionPoseSensor.off("change",this._onPoseChange)},t}(e),rt=null,ot=0,at=function(){function t(){if(ot++,rt)return rt;(rt=this)._onDeviceOrientation=this._onDeviceOrientation.bind(this),this._onOrientationChange=this._onOrientationChange.bind(this),this._spinR=0,this._screenOrientationAngle=0,r.addEventListener("deviceorientation",this._onDeviceOrientation),r.addEventListener("orientationchange",this._onOrientationChange)}var e=t.prototype;return e._onDeviceOrientation=function(t){if(null!==t.beta&&null!==t.gamma){var e=D.toRadian(t.beta),i=D.toRadian(t.gamma);this._spinR=Math.atan2(Math.cos(e)*Math.sin(i),Math.sin(e))}},e._onOrientationChange=function(t){r.screen&&r.screen.orientation&&void 0!==r.screen.orientation.angle?this._screenOrientationAngle=screen.orientation.angle:void 0!==r.orientation&&(this._screenOrientationAngle=0<=r.orientation?r.orientation:360+r.orientation)},e.getRadian=function(){return this._spinR+D.toRadian(this._screenOrientationAngle)},e.unref=function(){0<--ot||(r.removeEventListener("deviceorientation",this._onDeviceOrientation),r.removeEventListener("orientationchange",this._onOrientationChange),this._spinR=0,this._screenOrientationAngle=0,rt=null,ot=0)},t}(),st=function(s){function t(t,e){var i;return(i=s.call(this,t,e)||this)._useRotation=!1,i._screenRotationAngle=null,i.setUseRotation(!(!e||!e.useRotation)),i._userDirection=h.DIRECTION_ALL,i}d(t,s);var e=t.prototype;return e.setUseRotation=function(t){this._useRotation=t,this._screenRotationAngle&&(this._screenRotationAngle.unref(),this._screenRotationAngle=null),this._useRotation&&(this._screenRotationAngle=new at)},e.connect=function(t){this._userDirection=this._direction,this._useRotation&&this._direction&h.DIRECTION_ALL&&(this._direction=h.DIRECTION_ALL),s.prototype.connect.call(this,t)},e.getOffset=function(t,e){if(!1===this._useRotation)return s.prototype.getOffset.call(this,t,e);var i=s.prototype.getOffset.call(this,t,[!0,!0]),n=[0,0],r=this._screenRotationAngle.getRadian(),o=Math.cos(r),a=Math.sin(r);return n[0]=i[0]*o-i[1]*a,n[1]=i[1]*o+i[0]*a,this._userDirection&h.DIRECTION_HORIZONTAL?this._userDirection&h.DIRECTION_VERTICAL||(n[1]=0):n[0]=0,n},e.destroy=function(){this._useRotation&&this._screenRotationAngle&&this._screenRotationAngle.unref(),s.prototype.destroy.call(this)},t}(h.PanInput),ut=L.fromValues(0,0,0),ht=L.fromValues(1,0,0),ct=L.fromValues(0,1,0),lt=function(t){function e(){var e;return(e=t.call(this)||this)._screenRotationAngle=new at,e._fusionPoseSensor=new it,e._quaternion=F.create(),e._fusionPoseSensor.enable(),e._fusionPoseSensor.on("change",function(t){e._quaternion=t.quaternion,e.trigger("change",{isTrusted:!0})}),e}d(e,t);var i=e.prototype;return i.getCombinedQuaternion=function(t,e){var i=this._screenRotationAngle.getRadian(),n=L.rotateZ(L.create(),ht,ut,i),r=F.setAxisAngle(F.create(),ct,D.toRadian(-t)),o=F.setAxisAngle(F.create(),n,D.toRadian(-e)),a=F.conjugate(F.create(),this._quaternion),s=F.multiply(F.create(),o,a);return F.multiply(s,s,r),s},i.destroy=function(){this.off(),this._fusionPoseSensor&&(this._fusionPoseSensor.off(),this._fusionPoseSensor.destroy(),this._fusionPoseSensor=null),this._screenRotationAngle&&(this._screenRotationAngle.unref(),this._screenRotationAngle=null)},e}(e),dt="3.2.2-rc",ft=[-180,180],_t=[-90,90],gt=[-180,180],pt=function(){var t=function(n){function u(t){var e;e=n.call(this)||this;var i=c({element:null,yaw:0,pitch:0,fov:65,showPolePoint:!1,useZoom:!0,useKeyboard:!0,gyroMode:K.YAWPITCH,touchDirection:6,yawRange:ft,pitchRange:_t,fovRange:[30,110],aspectRatio:1},t);return e._element=i.element,e._initialFov=i.fov,e._enabled=!1,e._isAnimating=!1,e._deviceQuaternion=null,e._initAxes(i),e.option(i),e}d(u,n);var t=u.prototype;return t._initAxes=function(t){var e=this,i=this._updateYawRange(t.yawRange,t.fov,t.aspectRatio),n=this._updatePitchRange(t.pitchRange,t.fov,t.showPolePoint),r=t.gyroMode===K.VR;this.axesPanInput=new st(this._element,{useRotation:r}),this.axesWheelInput=new h.WheelInput(this._element,{scale:-4}),this.axesTiltMotionInput=null,this.axesPinchInput=_?new h.PinchInput(this._element,{scale:-1}):null,this.axesMoveKeyInput=new h.MoveKeyInput(this._element,{scale:[-6,6]}),this.axes=new h({yaw:{range:i,circular:u.isCircular(i),bounce:[0,0]},pitch:{range:n,circular:u.isCircular(n),bounce:[0,0]},fov:{range:t.fovRange,circular:[!1,!1],bounce:[0,0]}},{deceleration:.0014,maximumDuration:1e3},{yaw:t.yaw,pitch:t.pitch,fov:t.fov}).on({hold:function(t){e.axes.options.maximumDuration=1e3,e.trigger("hold",{isTrusted:t.isTrusted})},change:function(t){0!==t.delta.fov&&(e._updateControlScale(t),e.updatePanScale()),e._triggerChange(t)},release:function(t){e._triggerChange(t)},animationStart:function(t){},animationEnd:function(t){e.trigger("animationEnd",{isTrusted:t.isTrusted})}})},t.updatePanScale=function(t){void 0===t&&(t={});var e=this.axes.get().fov,i=t.height||parseInt(s(this._element).height,10),n=q[0]*e/this._initialFov*320/i;return this.axesPanInput.options.scale=[n,n],this.axes.options.deceleration=.0014*e/110,this},t.option=function(){for(var t=arguments.length,e=new Array(t),i=0;i<t;i++)e[i]=arguments[i];var n=e.length;if(0===n)return this._getOptions();if(1===n&&"string"==typeof e[0])return this._getOptions(e[0]);var r=c({},this.options),o={},a=[];return 1===n?(a=Object.keys(e[0]),o=c({},e[0])):2<=n&&(a.push(e[0]),o[e[0]]=e[1]),this._setOptions(this._getValidatedOptions(o)),this._applyOptions(a,r),this},t._getValidatedOptions=function(t){return t.yawRange&&(t.yawRange=this._getValidYawRange(t.yawRange,t.fov,t.aspectRatio)),t.pitchRange&&(t.pitchRange=this._getValidPitchRange(t.pitchRange,t.fov)),t},t._getOptions=function(t){var e;return"string"==typeof t?e=this.options[t]:0===arguments.length&&(e=this.options),e},t._setOptions=function(t){for(var e in t)this.options[e]=t[e]},t._applyOptions=function(t,e){if(t.some(function(t){return"showPolePoint"===t||"fov"===t||"aspectRatio"===t||"yawRange"===t||"pitchRange"===t})&&(this._updateControlScale(),0<=t.indexOf("fov")&&this.updatePanScale()),t.some(function(t){return"fovRange"===t})){var i=this.options.fovRange.map(function(t){return+t.toFixed(5)}),n=this.axes.get().fov,r=this.axes.get().fov;N.copy(this.axes.axis.fov.range,i),r<i[0]?r=i[0]:n>i[1]&&(r=i[1]),n!==r&&(this.axes.setTo({fov:r},0),this._updateControlScale(),this.updatePanScale())}if(t.some(function(t){return"gyroMode"===t})&&g){var o=this.options.gyroMode===K.VR,a=this.options.gyroMode===K.YAWPITCH;this.axesTiltMotionInput&&(this.axes.disconnect(this.axesTiltMotionInput),this.axesTiltMotionInput.destroy(),this.axesTiltMotionInput=null),this._deviceQuaternion&&(this._deviceQuaternion.destroy(),this._deviceQuaternion=null),o?this._initDeviceQuaternion():a&&(this.axesTiltMotionInput=new nt(this._element),this.axes.connect(["yaw","pitch"],this.axesTiltMotionInput)),this.axesPanInput.setUseRotation(o)}t.some(function(t){return"useKeyboard"===t})&&(this.options.useKeyboard?this.axes.connect(["yaw","pitch"],this.axesMoveKeyInput):this.axes.disconnect(this.axesMoveKeyInput));if(t.some(function(t){return"useZoom"===t})){var s=this.options.useZoom;this.axes.disconnect(this.axesWheelInput),s&&this.axes.connect(["fov"],this.axesWheelInput)}this._togglePinchInputByOption(this.options.touchDirection,this.options.useZoom),t.some(function(t){return"touchDirection"===t})&&this._enabled&&this._enableTouch(this.options.touchDirection)},t._togglePinchInputByOption=function(t,e){this.axesPinchInput&&(this.axes.disconnect(this.axesPinchInput),e&&6===t&&-1===this.axes._inputs.indexOf(this.axesPinchInput)&&this.axes.connect(["fov"],this.axesPinchInput))},t._enableTouch=function(t){this.axesPanInput&&this.axes.disconnect(this.axesPanInput);var e=2&t?"yaw":null,i=4&t?"pitch":null;this.axes.connect([e,i],this.axesPanInput)},t._initDeviceQuaternion=function(){var e=this;this._deviceQuaternion=new lt,this._deviceQuaternion.on("change",function(t){e._triggerChange(t)})},t._getValidYawRange=function(t,e,i){var n=u.adjustAspectRatio(i||this.options.aspectRatio||1),r=(e||this.axes.get().fov)*n;return t[1]-t[0]>=r?t:this.options.yawRange||ft},t._getValidPitchRange=function(t,e){var i=e||this.axes.get().fov;return t[1]-t[0]>=i?t:this.options.pitchRange||_t},u.isCircular=function(t){return t[1]-t[0]<360?[!1,!1]:[!0,!0]},t._updateControlScale=function(t){var e=this.options,i=this.axes.get().fov,n=this._updatePitchRange(e.pitchRange,i,e.showPolePoint),r=this._updateYawRange(e.yawRange,i,e.aspectRatio),o=this.axes.get(),a=o.yaw,s=o.pitch;return N.copy(this.axes.axis.yaw.range,r),N.copy(this.axes.axis.pitch.range,n),this.axes.axis.yaw.circular=u.isCircular(r),this.axes.axis.pitch.circular=u.isCircular(n),a<r[0]?a=r[0]:a>r[1]&&(a=r[1]),s<n[0]?s=n[0]:s>n[1]&&(s=n[1]),t&&t.set({yaw:a,pitch:s}),this.axes.setTo({yaw:a,pitch:s},0),this},t._updatePitchRange=function(t,e,i){if(this.options.gyroMode===K.VR)return gt;var n=t[1]-t[0],r=e/2;return i&&!(n<180)?t.map(function(t){return+t.toFixed(5)}):[t[0]+r,t[1]-r].map(function(t){return+t.toFixed(5)})},t._updateYawRange=function(t,e,i){if(this.options.gyroMode===K.VR)return ft;var n=t[1]-t[0];if(360<=n)return t.map(function(t){return+t.toFixed(5)});var r=1,o=e/2*u.adjustAspectRatio(i);return 290<n?r=.794:125<n&&(r=.98),[t[0]*r+o,t[1]*r-o].map(function(t){return+t.toFixed(5)})},t._triggerChange=function(t){var e=this.axes.get(),i=this.options,n={targetElement:i.element,isTrusted:t.isTrusted};n.yaw=e.yaw,n.pitch=e.pitch,n.fov=e.fov,i.gyroMode===K.VR&&this._deviceQuaternion&&(n.quaternion=this._deviceQuaternion.getCombinedQuaternion(e.yaw,e.pitch)),this.trigger("change",n)},u.adjustAspectRatio=function(t){for(var e=[.52,.54,.563,.57,.584,.59,.609,.67,.702,.72,.76,.78,.82,.92,.97,1,1.07,1.14,1.19,1.25,1.32,1.38,1.4,1.43,1.53,1.62,1.76,1.77,1.86,1.96,2.26,2.3,2.6,3,5,6],i=[.51,.54,.606,.56,.628,.63,.647,.71,.736,.757,.78,.77,.8,.89,.975,1,1.07,1.1,1.15,1.18,1.22,1.27,1.3,1.33,1.39,1.45,1.54,1.55,1.58,1.62,1.72,1.82,1.92,2,2.24,2.3],n=-1,r=0;r<e.length-1;r++)if(e[r]<=t&&t<=e[r+1]){n=r;break}if(-1===n)return t<e[0]?i[0]:i[i[0].length-1];var o=e[n];return u.lerp(i[n],i[n+1],(t-o)/(e[n+1]-o))},u.lerp=function(t,e,i){return t+i*(e-t)},t.enable=function(){return this._enabled||(this._enabled=!0,this._applyOptions(Object.keys(this.options),this.options),this.updatePanScale()),this},t.disable=function(t){return this._enabled&&(t||this._resetOrientation(),this.axes.disconnect(),this._enabled=!1),this},t._resetOrientation=function(){var t=this.options;return this.axes.setTo({yaw:t.yaw,pitch:t.pitch,fov:t.fov},0),this},t.lookAt=function(t,e){var i=t.yaw,n=t.pitch,r=t.fov,o=this.axes.get(),a=void 0===i?0:i-o.yaw,s=void 0===n?0:n-o.pitch,u=void 0===r?0:r-o.fov;this.axes.options.maximumDuration=1/0,this.axes.setBy({yaw:a,pitch:s,fov:u},e)},t.get=function(){return this.axes.get()},t.getYaw=function(){return this.axes.get().yaw},t.getPitch=function(){return this.axes.get().pitch},t.getFov=function(){return this.axes.get().fov},t.destroy=function(){this.axes&&this.axes.destroy(),this.axisPanInput&&this.axisPanInput.destroy(),this.axesWheelInput&&this.axesWheelInput.destroy(),this.axesTiltMotionInput&&this.axesTiltMotionInput.destroy(),this.axesDeviceOrientationInput&&this.axesDeviceOrientationInput.destroy(),this.axesPinchInput&&this.axesPinchInput.destroy(),this.axesMoveKeyInput&&this.axesMoveKeyInput.destroy(),this._deviceQuaternion&&this._deviceQuaternion.destroy()},u}(e);return t.VERSION=dt,t.CONTROL_MODE_VR=1,t.CONTROL_MODE_YAWPITCH=2,t.TOUCH_DIRECTION_ALL=6,t.TOUCH_DIRECTION_YAW=2,t.TOUCH_DIRECTION_PITCH=4,t.TOUCH_DIRECTION_NONE=1,t}(),vt="undefined"==typeof Promise?n.Promise:Promise,mt={NONE:0,LOADING:1,LOADED:2,ERROR:3},yt="readystatechange",wt=function(){var t=function(i){function a(t){var e;return(e=i.call(this)||this)._image=null,e._onceHandlers=[],e._lo