xture=this._colorsTexture.toJSON(e)),this.boundingSphere!==null&&(s.boundingSphere=this.boundingSphere.toJSON()),this.boundingBox!==null&&(s.boundingBox=this.boundingBox.toJSON()));function r(o,l){return o[l.uuid]===void 0&&(o[l.uuid]=l.toJSON(e)),l.uuid}if(this.isScene)this.background&&(this.background.isColor?s.background=this.background.toJSON():this.background.isTexture&&(s.background=this.background.toJSON(e).uuid)),this.environment&&this.environment.isTexture&&this.environment.isRenderTargetTexture!==!0&&(s.environment=this.environment.toJSON(e).uuid);else if(this.isMesh||this.isLine||this.isPoints){s.geometry=r(e.geometries,this.geometry);let o=this.geometry.parameters;if(o!==void 0&&o.shapes!==void 0){let l=o.shapes;if(Array.isArray(l))for(let c=0,h=l.length;c0){s.children=[];for(let o=0;o0){s.animations=[];for(let o=0;o0&&(n.geometries=o),l.length>0&&(n.materials=l),c.length>0&&(n.textures=c),h.length>0&&(n.images=h),f.length>0&&(n.shapes=f),u.length>0&&(n.skeletons=u),d.length>0&&(n.animations=d),g.length>0&&(n.nodes=g)}return n.object=s,n;function a(o){let l=[];for(let c in o){let h=o[c];delete h.metadata,l.push(h)}return l}}clone(e){return new this.constructor().copy(this,e)}copy(e,t=!0){if(this.name=e.name,this.up.copy(e.up),this.position.copy(e.position),this.rotation.order=e.rotation.order,this.quaternion.copy(e.quaternion),this.scale.copy(e.scale),this.pivot=e.pivot!==null?e.pivot.clone():null,this.matrix.copy(e.matrix),this.matrixWorld.copy(e.matrixWorld),this.matrixAutoUpdate=e.matrixAutoUpdate,this.matrixWorldAutoUpdate=e.matrixWorldAutoUpdate,this.matrixWorldNeedsUpdate=e.matrixWorldNeedsUpdate,this.layers.mask=e.layers.mask,this.visible=e.visible,this.castShadow=e.castShadow,this.receiveShadow=e.receiveShadow,this.frustumCulled=e.frustumCulled,this.renderOrder=e.renderOrder,this.static=e.static,this.animations=e.animations.slice(),this.userData=JSON.parse(JSON.stringify(e.userData)),t===!0)for(let n=0;n