1;if(this._grip!==null)this._grip.visible=!1;if(this._hand!==null)this._hand.visible=!1;return this}update(t,e,n){let i=null,s=null,a=null,r=this._targetRay,o=this._grip,l=this._hand;if(t&&e.session.visibilityState!=="visible-blurred"){if(l&&t.hand){a=!0;for(let v of t.hand.values()){let y=e.getJointPose(v,n),U=this._getHandJoint(l,v);if(y!==null)U.matrix.fromArray(y.transform.matrix),U.matrix.decompose(U.position,U.rotation,U.scale),U.matrixWorldNeedsUpdate=!0,U.jointRadius=y.radius;U.visible=y!==null}let c=l.joints["index-finger-tip"],u=l.joints["thumb-tip"],f=c.position.distanceTo(u.position),h=0.02,p=0.005;if(l.inputState.pinching&&f>h+p)l.inputState.pinching=!1,this.dispatchEvent({type:"pinchend",handedness:t.handedness,target:this});else if(!l.inputState.pinching&&f<=h-p)l.inputState.pinching=!0,this.dispatchEvent({type:"pinchstart",handedness:t.handedness,target:this})}else if(o!==null&&t.gripSpace){if(s=e.getPose(t.gripSpace,n),s!==null){if(o.matrix.fromArray(s.transform.matrix),o.matrix.decompose(o.position,o.rotation,o.scale),o.matrixWorldNeedsUpdate=!0,s.linearVelocity)o.hasLinearVelocity=!0,o.linearVelocity.copy(s.linearVelocity);else o.hasLinearVelocity=!1;if(s.angularVelocity)o.hasAngularVelocity=!0,o.angularVelocity.copy(s.angularVelocity);else o.hasAngularVelocity=!1}}if(r!==null){if(i=e.getPose(t.targetRaySpace,n),i===null&&s!==null)i=s;if(i!==null){if(r.matrix.fromArray(i.transform.matrix),r.matrix.decompose(r.position,r.rotation,r.scale),r.matrixWorldNeedsUpdate=!0,i.linearVelocity)r.hasLinearVelocity=!0,r.linearVelocity.copy(i.linearVelocity);else r.hasLinearVelocity=!1;if(i.angularVelocity)r.hasAngularVelocity=!0,r.angularVelocity.copy(i.angularVelocity);else r.hasAngularVelocity=!1;this.dispatchEvent(IS)}}}if(r!==null)r.visible=i!==null;if(o!==null)o.visible=s!==null;if(l!==null)l.visible=a!==null;return this}_getHandJoint(t,e){if(t.joints[e.jointName]===void 0){let n=new he;n.matrixAutoUpdate=!1,n.visible=!1,t.joints[e.jointName]=n,t.add(n)}return t.joints[e.jointName]}}class dr{constructor(t,e=0.00025){this.isFogExp2=!0,this.name="",this.color=new Xt(t),this.density=e}clone(){return new dr(this.color,this.density)}toJSON(){return{type:"FogExp2",name:this.name,color:this.color.getHex(),density:this.density}}}class Qo extends Ne{constructor(){super();if(this.isScene=!0,this.type="Scene",this.background=null,this.environment=null,this.fog=null,this.backgroundBlurriness=0,this.backgroundIntensity=1,this.backgroundRotation=new Dn,this.environmentIntensity=1,this.environmentRotation=new Dn,this.overrideMaterial=null,typeof __THREE_DEVTOOLS__<"u")__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe",{detail:this}))}copy(t,e){if(super.copy(t,e),t.background!==null)this.background=t.background.clone();if(t.environment!==null)this.environment=t.environment.clone();if(t.fog!==null)this.fog=t.fog.clone();if(this.backgroundBlurriness=t.backgroundBlurriness,this.backgroundIntensity=t.backgroundIntensity,this.backgroundRotation.copy(t.backgroundRotation),this.environmentIntensity=t.environmentIntensity,this.environmentRotation.copy(t.environmentRotation),t.overrideMaterial!==null)this.overrideMaterial=t.overrideMaterial.clone();return this.matrixAutoUpdate=t.matrixAutoUpdate,this}toJSON(t){let e=super.toJSON(t);if(this.fog!==null)e.object.fog=this.fog.toJSON();if(this.backgroundBlurriness>0)e.object.backgroundBlurriness=this.backgroundBlurriness;if(this.backgroundIntensity!==1)e.object.backgroundIntensity=this.backgroundIntensity;if(e.object.backgroundRotation=this.backgroundRotation.toArray(),this.environmentIntensity!==1)e.object.environmentIntensity=this.environmentIntensity;return e.object.environmentRotation=this.environmentRotation.toArray(),e}}class TU{constructor(t,e){this.isInterleavedBuffer=!0,this.array=t,this.stride=e,this.count=t!==void 0?t.length/e:0,this.usage=35044,this.updateRanges=[],this.version=0,this.uuid=xa()}onUploadCallback(){}set needsUpdate(t){if(t===!0)this.version++}setUsage(t){return this.usage=t,this}addUpdateRange(t,e){this.updateRanges.push({start:t,count:e})}clearUpdateRanges(){this.updateRanges.length=0}copy(t){return this.array=new t.array.constructor(t.array),this.count=t.count,this.stride=t.stride,this.usage=t.usage,this}copyAt(t,e,n){t*=this.stride,n*=e.stride;for(let i=0,s=this.stride;i