Z(X){for(let ot=0;ot=0)S[yt]=null,x[yt].disconnect(Y)}for(let ot=0;ot=S.length){S.push(Y),yt=vt;break}else if(S[vt]===null){S[vt]=Y,yt=vt;break}if(yt===-1)break}let Ht=x[yt];if(Ht)Ht.connect(Y)}}let at=new C,W=new C;function ht(X,ot,Y){at.setFromMatrixPosition(ot.matrixWorld),W.setFromMatrixPosition(Y.matrixWorld);let yt=at.distanceTo(W),Ht=ot.projectionMatrix.elements,vt=Y.projectionMatrix.elements,ye=Ht[14]/(Ht[10]-1),D=Ht[14]/(Ht[10]+1),ce=(Ht[9]+1)/Ht[5],kt=(Ht[9]-1)/Ht[5],Bt=(Ht[8]-1)/Ht[0],St=(vt[8]+1)/vt[0],Ue=ye*Bt,Dt=ye*St,It=yt/(-Bt+St),xe=It*-Bt;if(ot.matrixWorld.decompose(X.position,X.quaternion,X.scale),X.translateX(xe),X.translateZ(It),X.matrixWorld.compose(X.position,X.quaternion,X.scale),X.matrixWorldInverse.copy(X.matrixWorld).invert(),Ht[10]===-1)X.projectionMatrix.copy(ot.projectionMatrix),X.projectionMatrixInverse.copy(ot.projectionMatrixInverse);else{let be=ye+It,Ee=D+It,L=Ue-xe,E=Dt+(yt-xe),B=ce*D/Ee*be,tt=kt*D/Ee*be;X.projectionMatrix.makePerspective(L,E,B,tt,be,Ee),X.projectionMatrixInverse.copy(X.projectionMatrix).invert()}}function mt(X,ot){if(ot===null)X.matrixWorld.copy(X.matrix);else X.matrixWorld.multiplyMatrices(ot.matrixWorld,X.matrix);X.matrixWorldInverse.copy(X.matrixWorld).invert()}this.updateCamera=function(X){if(i===null)return;let{near:ot,far:Y}=X;if(y.texture!==null){if(y.depthNear>0)ot=y.depthNear;if(y.depthFar>0)Y=y.depthFar}if(R.near=b.near=w.near=ot,R.far=b.far=w.far=Y,O!==R.near||V!==R.far)i.updateRenderState({depthNear:R.near,depthFar:R.far}),O=R.near,V=R.far;R.layers.mask=X.layers.mask|6,w.layers.mask=R.layers.mask&3,b.layers.mask=R.layers.mask&5;let yt=X.parent,Ht=R.cameras;mt(R,yt);for(let vt=0;vt