is.groundColor&&(e.object.groundColor=this.groundColor.getHex()),void 0!==this.distance&&(e.object.distance=this.distance),void 0!==this.angle&&(e.object.angle=this.angle),void 0!==this.decay&&(e.object.decay=this.decay),void 0!==this.penumbra&&(e.object.penumbra=this.penumbra),void 0!==this.shadow&&(e.object.shadow=this.shadow.toJSON()),e}}Fl.prototype.isLight=!0;class Ol extends Fl{constructor(t,e,n){super(t,n),this.type="HemisphereLight",this.position.copy(Ce.DefaultUp),this.updateMatrix(),this.groundColor=new tn(e)}copy(t){return Fl.prototype.copy.call(this,t),this.groundColor.copy(t.groundColor),this}}Ol.prototype.isHemisphereLight=!0;const Hl=new se,Gl=new Lt,Ul=new Lt;class kl{constructor(t){this.camera=t,this.bias=0,this.normalBias=0,this.radius=1,this.mapSize=new vt(512,512),this.map=null,this.mapPass=null,this.matrix=new se,this.autoUpdate=!0,this.needsUpdate=!1,this._frustum=new ai,this._frameExtents=new vt(1,1),this._viewportCount=1,this._viewports=[new St(0,0,1,1)]}getViewportCount(){return this._viewportCount}getFrustum(){return this._frustum}updateMatrices(t){const e=this.camera,n=this.matrix;Gl.setFromMatrixPosition(t.matrixWorld),e.position.copy(Gl),Ul.setFromMatrixPosition(t.target.matrixWorld),e.lookAt(Ul),e.updateMatrixWorld(),Hl.multiplyMatrices(e.projectionMatrix,e.matrixWorldInverse),this._frustum.setFromProjectionMatrix(Hl),n.set(.5,0,0,.5,0,.5,0,.5,0,0,.5,.5,0,0,0,1),n.multiply(e.projectionMatrix),n.multiply(e.matrixWorldInverse)}getViewport(t){return this._viewports[t]}getFrameExtents(){return this._frameExtents}dispose(){this.map&&this.map.dispose(),this.mapPass&&this.mapPass.dispose()}copy(t){return this.camera=t.camera.clone(),this.bias=t.bias,this.radius=t.radius,this.mapSize.copy(t.mapSize),this}clone(){return(new this.constructor).copy(this)}toJSON(){const t={};return 0!==this.bias&&(t.bias=this.bias),0!==this.normalBias&&(t.normalBias=this.normalBias),1!==this.radius&&(t.radius=this.radius),512===this.mapSize.x&&512===this.mapSize.y||(t.mapSize=this.mapSize.toArray()),t.camera=this.camera.toJSON(!1).object,delete t.camera.matrix,t}}class Vl extends kl{constructor(){super(new Kn(50,1,.5,500)),this.focus=1}updateMatrices(t){const e=this.camera,n=2*lt*t.angle*this.focus,i=this.mapSize.width/this.mapSize.height,r=t.distance||e.far;n===e.fov&&i===e.aspect&&r===e.far||(e.fov=n,e.aspect=i,e.far=r,e.updateProjectionMatrix()),super.updateMatrices(t)}copy(t){return super.copy(t),this.focus=t.focus,this}}Vl.prototype.isSpotLightShadow=!0;class Wl extends Fl{constructor(t,e,n=0,i=Math.PI/3,r=0,s=1){super(t,e),this.type="SpotLight",this.position.copy(Ce.DefaultUp),this.updateMatrix(),this.target=new Ce,this.distance=n,this.angle=i,this.penumbra=r,this.decay=s,this.shadow=new Vl}get power(){return this.intensity*Math.PI}set power(t){this.intensity=t/Math.PI}dispose(){this.shadow.dispose()}copy(t){return super.copy(t),this.distance=t.distance,this.angle=t.angle,this.penumbra=t.penumbra,this.decay=t.decay,this.target=t.target.clone(),this.shadow=t.shadow.clone(),this}}Wl.prototype.isSpotLight=!0;const jl=new se,ql=new Lt,Xl=new Lt;class Yl extends kl{constructor(){super(new Kn(90,1,.5,500)),this._frameExtents=new vt(4,2),this._viewportCount=6,this._viewports=[new St(2,1,1,1),new St(0,1,1,1),new St(3,1,1,1),new St(1,1,1,1),new St(3,0,1,1),new St(1,0,1,1)],this._cubeDirections=[new Lt(1,0,0),new Lt(-1,0,0),new Lt(0,0,1),new Lt(0,0,-1),new Lt(0,1,0),new Lt(0,-1,0)],this._cubeUps=[new Lt(0,1,0),new Lt(0,1,0),new Lt(0,1,0),new Lt(0,1,0),new Lt(0,0,1),new Lt(0,0,-1)]}updateMatrices(t,e=0){const n=this.camera,i=this.matrix,r=t.distance||n.far;r!==n.far&&(n.far=r,n.updateProjectionMatrix()),ql.setFromMatrixPosition(t.matrixWorld),n.position.copy(ql),Xl.copy(n.position),Xl.add(this._cubeDirections[e]),n.up.copy(this._cubeUps[e]),n.lookAt(Xl),n.updateMatrixWorld(),i.makeTranslation(-ql.x,-ql.y,-ql.z),jl.multiplyMatrices(n.projectionMatrix,n.matrixWorldInverse),this._frustum.setFromProjectionMatrix(jl)}}Yl.prototype.isPointLightShadow=!0;class Zl extends Fl{constructor(t,e,n=0,i=1){super(t,e),this.type="PointLight",this.distance=n,this.decay=i,this.shadow=new Yl}get power(){return 4*this.intensity*Math.PI}set power(t){this.intensity=t/(4*Math.PI)}dispose(){this.shadow.dispose()}copy(t){return super.copy(t),this.distance=t.distance,this.decay=t.decay,this.shadow=t.shadow.clone(),this}}Zl.prototype.isPointLight=!0;class Jl extends Qn{constructor(t=-1,e=1,n=1,i=-1,r=.1,s=2e3){super(),this.type="OrthographicCamera",this.zoom=1,this.view=null,this.left=t,this.right=e,this.top=n,this.bottom=i,this.near=r,this.far=s,this.updateProjectionMatrix()}copy(t,e){return super.copy(t,e),this.left=t.left,this.right=t.right,this.top=t.top,this.bottom=t.bottom,this.near=t.near,this.far=t.far,this.zoom=t.zoom,this.view=null===t.view?null:Object.assign({},t.view),this}setViewOffset(t,e,n,i,r,s){null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height: