ls.length>0){Ma.setFromMatrixPosition(this.matrixWorld);let i=t.ray.origin.distanceTo(Ma);this.getObjectForDistance(i).raycast(t,e)}}update(t){let e=this.levels;if(e.length>1){Ma.setFromMatrixPosition(t.matrixWorld),Nd.setFromMatrixPosition(this.matrixWorld);let n=Ma.distanceTo(Nd)/t.zoom;e[0].object.visible=!0;let i,r;for(i=1,r=e.length;i=a)e[i-1].object.visible=!1,e[i].object.visible=!0;else break}for(this._currentLevel=i-1;i0)if(d=a*l-o,u=a*o-l,p=r*h,d>=0)if(u>=-p)if(u<=p){let _=1/h;d*=_,u*=_,f=d*(d+a*u+2*o)+u*(a*d+u+2*l)+c}else u=r,d=Math.max(0,-(a*u+o)),f=-d*d+u*(u+2*l)+c;else u=-r,d=Math.max(0,-(a*u+o)),f=-d*d+u*(u+2*l)+c;else u<=-p?(d=Math.max(0,-(-a*r+o)),u=d>0?-r:Math.min(Math.max(-r,-l),r),f=-d*d+u*(u+2*l)+c):u<=p?(d=0,u=Math.min(Math.max(-r,-l),r),f=u*(u+2*l)+c):(d=Math.max(0,-(a*r+o)),u=d>0?r:Math.min(Math.max(-r,-l),r),f=-d*d+u*(u+2*l)+c);else u=a>0?-r:r,d=Math.max(0,-(a*u+o)),f=-d*d+u*(u+2*l)+c;return n&&n.copy(this.origin).addScaledVector(this.direction,d),i&&i.copy(zc).addScaledVector(ba,u),f}intersectSphere(t,e){if(t.radius<0)return null;Yn.subVectors(t.center,this.origin);let n=Yn.dot(this.direction),i=Yn.dot(Yn)-n*n,r=t.radius*t.radius;if(i>r)return null;let a=Math.sqrt(r-i),o=n-a,l=n+a;return l<0?null:o<0?this.at(l,e):this.at(o,e)}intersectsSphere(t){return t.radius<0?!1:this.distanceSqToPoint(t.center)<=t.radius*t.radius}distanceToPlane(t){let e=t.normal.dot(this.direction);if(e===0)return t.distanceToPoint(this.origin)===0?0:null;let n=-(this.origin.dot(t.normal)+t.constant)/e;return n>=0?n:null}intersectPlane(t,e){let n=this.distanceToPlane(t);return n===null?null:this.at(n,e)}intersectsPlane(t){let e=t.distanceToPoint(this.origin);return e===0||t.normal.dot(this.direction)*e<0}intersectBox(t,e){let n,i,r,a,o,l,c=1/this.direction.x,h=1/this.direction.y,d=1/this.direction.z,u=this.origin;return c>=0?(n=(t.min.x-u.x)*c,i=(t.max.x-u.x)*c):(n=(t.max.x-u.x)*c,i=(t.min.x-u.x)*c),h>=0?(r=(t.min.y-u.y)*h,a=(t.max.y-u.y)*h):(r=(t.max.y-u.y)*h,a=(t.min.y-u.y)*h),n>a||r>i||((r>n||isNaN(n))&&(n=r),(a=0?(o=(t.min.z-u.z)*d,l=(t.max.z-u.z)*d):(o=(t.max.z-u.z)*d,l=(t.min.z-u.z)*d),n>l||o>i)||((o>n||n!==n)&&(n=o),(l=0?n:i,e)}intersectsBox(t){return this.intersectBox(t,Yn)!==null}intersectTriangle(t,e,n,i,r){let a=this.origin,o=this.direction,l=o.x,c=o.y,h=o.z,d=t.x-a.x,u=t.y-a.y,f=t.z-a.z,p=e.x-a.x,_=e.y-a.y,g=e.z-a.z,m=n.x-a.x,S=n.y-a.y,b=n.z-a.z,x=Math.abs(l),E=Math.abs(c),T=Math.abs(h),R,v,A,I,L,F,z,D,B,X,W,st;if(x>=E&&x>=T?(A=l,F=d,B=p,st=m,l>=0?(R=c,v=h,I=u,L=f,z=_,D=g,X=S,W=b):(R=h,v=c,I=f,L=u,z=g,D=_,X=b,W=S)):E>=T?(A=c,F=u,B=_,st=S,c>=0?(R=h,v=l,I=f,L=d,z=g,D=p,X=b,W=m):(R=l,v=h,I=d,L=f,z=p,D=g,X=m,W=b)):(A=h,F=f,B=g,st=b,h>=0?(R=l,v=c,I=d,L=u,z=p,D=_,X=m,W=S):(R=c,v=l,I=u,L=d,z=_,D=p,X=S,W=m)),A===0)return null;let q=R/A,Q=v/A,et=1/A,Dt=I-q*F,wt=L-Q*F,se=z-q*B,Qt=D-Q*B,ne=X-q*st,J=W-Q*st,j=ne*Qt-J*se,xt=Dt*J-wt*ne,Vt=se*wt-Qt*Dt;if(i){if(j<0||xt<0||Vt<0)return null}else if((j<0||xt<0||Vt<0)&&(j>0||xt>0||Vt>0))return null;let bt=j+xt+Vt;if(bt===0)return null;let Gt=et*(j*F+xt*B+Vt*st);return(bt>0?Gt<0:Gt>0)?null:this.at(Gt/bt,r)}applyMatrix4(t){return this.origin.applyMatrix4(t),this.direction.transformDirection(t),this}equals(t){return t.origin.equals(this.origin)&&t.direction.equals(this.direction)}clone(){return new this.constructor().copy(this)}},Nn=class extends Pe{constructor(t){super(),this.isMeshBasicMaterial=!0,this.type="Me