=e[t+1],this._z=e[t+2],this._w=e[t+3],this._onChangeCallback(),this}toArray(e=[],t=0){return e[t]=this._x,e[t+1]=this._y,e[t+2]=this._z,e[t+3]=this._w,e}fromBufferAttribute(e,t){return this._x=e.getX(t),this._y=e.getY(t),this._z=e.getZ(t),this._w=e.getW(t),this._onChangeCallback(),this}toJSON(){return this.toArray()}_onChange(e){return this._onChangeCallback=e,this}_onChangeCallback(){}*[Symbol.iterator](){yield this._x,yield this._y,yield this._z,yield this._w}},Dh=class Dh{constructor(e=0,t=0,n=0){this.x=e,this.y=t,this.z=n}set(e,t,n){return n===void 0&&(n=this.z),this.x=e,this.y=t,this.z=n,this}setScalar(e){return this.x=e,this.y=e,this.z=e,this}setX(e){return this.x=e,this}setY(e){return this.y=e,this}setZ(e){return this.z=e,this}setComponent(e,t){switch(e){case 0:this.x=t;break;case 1:this.y=t;break;case 2:this.z=t;break;default:throw new Error("THREE.Vector3: index is out of range: "+e)}return this}getComponent(e){switch(e){case 0:return this.x;case 1:return this.y;case 2:return this.z;default:throw new Error("THREE.Vector3: index is out of range: "+e)}}clone(){return new this.constructor(this.x,this.y,this.z)}copy(e){return this.x=e.x,this.y=e.y,this.z=e.z,this}add(e){return this.x+=e.x,this.y+=e.y,this.z+=e.z,this}addScalar(e){return this.x+=e,this.y+=e,this.z+=e,this}addVectors(e,t){return this.x=e.x+t.x,this.y=e.y+t.y,this.z=e.z+t.z,this}addScaledVector(e,t){return this.x+=e.x*t,this.y+=e.y*t,this.z+=e.z*t,this}sub(e){return this.x-=e.x,this.y-=e.y,this.z-=e.z,this}subScalar(e){return this.x-=e,this.y-=e,this.z-=e,this}subVectors(e,t){return this.x=e.x-t.x,this.y=e.y-t.y,this.z=e.z-t.z,this}multiply(e){return this.x*=e.x,this.y*=e.y,this.z*=e.z,this}multiplyScalar(e){return this.x*=e,this.y*=e,this.z*=e,this}multiplyVectors(e,t){return this.x=e.x*t.x,this.y=e.y*t.y,this.z=e.z*t.z,this}applyEuler(e){return this.applyQuaternion(Cu.setFromEuler(e))}applyAxisAngle(e,t){return this.applyQuaternion(Cu.setFromAxisAngle(e,t))}applyMatrix3(e){let t=this.x,n=this.y,s=this.z,r=e.elements;return this.x=r[0]*t+r[3]*n+r[6]*s,this.y=r[1]*t+r[4]*n+r[7]*s,this.z=r[2]*t+r[5]*n+r[8]*s,this}applyNormalMatrix(e){return this.applyMatrix3(e).normalize()}applyMatrix4(e){let t=this.x,n=this.y,s=this.z,r=e.elements,a=1/(r[3]*t+r[7]*n+r[11]*s+r[15]);return this.x=(r[0]*t+r[4]*n+r[8]*s+r[12])*a,this.y=(r[1]*t+r[5]*n+r[9]*s+r[13])*a,this.z=(r[2]*t+r[6]*n+r[10]*s+r[14])*a,this}applyQuaternion(e){let t=this.x,n=this.y,s=this.z,r=e.x,a=e.y,o=e.z,l=e.w,c=2*(a*s-o*n),h=2*(o*t-r*s),f=2*(r*n-a*t);return this.x=t+l*c+a*f-o*h,this.y=n+l*h+o*c-r*f,this.z=s+l*f+r*h-a*c,this}project(e){return this.applyMatrix4(e.matrixWorldInverse).applyMatrix4(e.projectionMatrix)}unproject(e){return this.applyMatrix4(e.projectionMatrixInverse).applyMatrix4(e.matrixWorld)}transformDirection(e){let t=this.x,n=this.y,s=this.z,r=e.elements;return this.x=r[0]*t+r[4]*n+r[8]*s,this.y=r[1]*t+r[5]*n+r[9]*s,this.z=r[2]*t+r[6]*n+r[10]*s,this.normalize()}divide(e){return this.x/=e.x,this.y/=e.y,this.z/=e.z,this}divideScalar(e){return this.multiplyScalar(1/e)}min(e){return this.x=Math.min(this.x,e.x),this.y=Math.min(this.y,e.y),this.z=Math.min(this.z,e.z),this}max(e){return this.x=Math.max(this.x,e.x),this.y=Math.max(this.y,e.y),this.z=Math.max(this.z,e.z),this}clamp(e,t){return this.x=st(this.x,e.x,t.x),this.y=st(this.y,e.y,t.y),this.z=st(this.z,e.z,t.z),this}clampScalar(e,t){return this.x=st(this.x,e,t),this.y=st(this.y,e,t),this.z=st(this.z,e,t),this}clampLength(e,t){let n=this.length();return this.divideScalar(n||1).multiplyScalar(st(n,e,t))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this}roundToZero(){return this.x=Math.trunc(this.x),this.y=Math.trunc(this.y),this.z=Math.trunc(this.z),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this}dot(e){return this.x*e.x+this.y*e.y+this.z*e.z}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)}normalize(){return this.divideScalar(this.length()||1)}setLength(e){return this.normalize().multiplyScalar(e)}lerp(e,t){return this.x+=(e.x-this.x)*t,this.y+=(e.y-this.y)*t,this.z+=(e.z-this.z)*t,this}lerpVectors(e,t,n){return this.x=e.x+(t.x-e.x)*n,this.y=e.y+(t.y-e.y)*n,this.z=e.z+(t.z-e.z)*n,this}cross(e){return this.crossVectors(this,e)}crossVectors(e,t){let n=e.x,s=e.y,r=e.z,a=t.x,o=t.y,l=t.z;return this.x=s*l-r*o,this.y=r*a-n*l,this.z=n*o-s*a,this}projectOnVector(e){let t=e.lengthSq();if(t===0)return this.set(0,0,0);let n=e.dot(this)/t;return this.copy(e).multiplyScalar(n)}projectOnPlane(e){return bc.copy(this).projectOnVector(e),this.sub(bc)}reflect(e){return this.sub(bc.copy(e).multiply