re.radius)&&ke('BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.',this)}}computeTangents(){let e=this.index,t=this.attributes;if(e===null||t.position===void 0||t.normal===void 0||t.uv===void 0){ke("BufferGeometry: .computeTangents() failed. Missing required attributes (index, position, normal or uv)");return}let n=t.position,s=t.normal,r=t.uv,a=this.getAttribute("tangent");(a===void 0||a.count!==n.count)&&(a=new wt(new Float32Array(4*n.count),4),this.setAttribute("tangent",a));let o=[],l=[];for(let x=0;x0&&(e.userData=this.userData),this.parameters!==void 0&&this._transformed!==!0){let l=this.parameters;for(let c in l)l[c]!==void 0&&(e[c]=l[c]);return e}e.data={attributes:{}};let t=this.index;t!==null&&(e.data.index={type:t.array.constructor.name,array:Array.prototype.slice.call(t.array)});let n=this.attributes;for(let l in n){let c=n[l];e.data.attributes[l]=c.toJSON(e.data)}let s={},r=!1;for(let l in this.morphAttributes){let c=this.morphAttributes[l],h=[];for(let f=0,u=c.length;f0&&(s[l]=h,r=!0)}r&&(e.data.morphAttributes=s,e.data.morphTargetsRelative=this.morphTargetsRelative);let a=this.groups;a.length>0&&(e.data.groups=JSON.parse(JSON.stringify(a)));let o=this.boundingSphere;return o!==null&&(e.data.boundingSphere=o.toJSON()),e}clone(){return new this.constructor().copy(this)}copy(e){this.index=null,this.attributes={},this.morphAttributes={},this.groups=[],this.boundingBox=null,this.boundingSphere=null;let t={};this.name=e.name;let n=e.index;n!==nu