Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)}normalize(){return this.divideScalar(this.length()||1)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this.z+=(t.z-this.z)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this.z=t.z+(e.z-t.z)*n,this}cross(t){return this.crossVectors(this,t)}crossVectors(t,e){let n=t.x,i=t.y,r=t.z,a=e.x,o=e.y,l=e.z;return this.x=i*l-r*o,this.y=r*a-n*l,this.z=n*o-i*a,this}projectOnVector(t){let e=t.lengthSq();if(e===0)return this.set(0,0,0);let n=t.dot(this)/e;return this.copy(t).multiplyScalar(n)}projectOnPlane(t){return Sc.copy(this).projectOnVector(t),this.sub(Sc)}reflect(t){return this.sub(Sc.copy(t).multiplyScalar(2*this.dot(t)))}angleTo(t){let e=Math.sqrt(this.lengthSq()*t.lengthSq());if(e===0)return Math.PI/2;let n=this.dot(t)/e;return Math.acos(kt(n,-1,1))}distanceTo(t){return Math.sqrt(this.distanceToSquared(t))}distanceToSquared(t){let e=this.x-t.x,n=this.y-t.y,i=this.z-t.z;return e*e+n*n+i*i}manhattanDistanceTo(t){return Math.abs(this.x-t.x)+Math.abs(this.y-t.y)+Math.abs(this.z-t.z)}setFromSpherical(t){return this.setFromSphericalCoords(t.radius,t.phi,t.theta)}setFromSphericalCoords(t,e,n){let i=Math.sin(e)*t;return this.x=i*Math.sin(n),this.y=Math.cos(e)*t,this.z=i*Math.cos(n),this}setFromCylindrical(t){return this.setFromCylindricalCoords(t.radius,t.theta,t.y)}setFromCylindricalCoords(t,e,n){return this.x=t*Math.sin(e),this.y=n,this.z=t*Math.cos(e),this}setFromMatrixPosition(t){let e=t.elements;return this.x=e[12],this.y=e[13],this.z=e[14],this}setFromMatrixScale(t){let e=this.setFromMatrixColumn(t,0).length(),n=this.setFromMatrixColumn(t,1).length(),i=this.setFromMatrixColumn(t,2).length();return this.x=e,this.y=n,this.z=i,this}setFromMatrixColumn(t,e){return this.fromArray(t.elements,e*4)}setFromMatrix3Column(t,e){return this.fromArray(t.elements,e*3)}setFromEuler(t){return this.x=t._x,this.y=t._y,this.z=t._z,this}setFromColor(t){return this.x=t.r,this.y=t.g,this.z=t.b,this}equals(t){return t.x===this.x&&t.y===this.y&&t.z===this.z}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this.z=t[e+2],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t[e+2]=this.z,t}fromBufferAttribute(t,e){return this.x=t.getX(e),this.y=t.getY(e),this.z=t.getZ(e),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this}randomDirection(){let t=Math.random()*Math.PI*2,e=Math.random()*2-1,n=Math.sqrt(1-e*e);return this.x=n*Math.cos(t),this.y=e,this.z=n*Math.sin(t),this}*[Symbol.iterator](){yield this.x,yield this.y,yield this.z}},Sc=new C,Sd=new Fe,Xt=class s{static{s.prototype.isMatrix3=!0}constructor(t,e,n,i,r,a,o,l,c){this.elements=[1,0,0,0,1,0,0,0,1],t!==void 0&&this.set(t,e,n,i,r,a,o,l,c)}set(t,e,n,i,r,a,o,l,c){let h=this.elements;return h[0]=t,h[1]=i,h[2]=o,h[3]=e,h[4]=r,h[5]=l,h[6]=n,h[7]=a,h[8]=c,this}identity(){return this.set(1,0,0,0,1,0,0,0,1),this}copy(t){let e=this.elements,n=t.elements;return e[0]=n[0],e[1]=n[1],e[2]=n[2],e[3]=n[3],e[4]=n[4],e[5]=n[5],e[6]=n[6],e[7]=n[7],e[8]=n[8],this}extractBasis(t,e,n){return t.setFromMatrix3Column(this,0),e.setFromMatrix3Column(this,1),n.setFromMatrix3Column(this,2),this}setFromMatrix4(t){let e=t.elements;return this.set(e[0],e[4],e[8],e[1],e[5],e[9],e[2],e[6],e[10]),this}multiply(t){return this.multiplyMatrices(this,t)}premultiply(t){return this.multiplyMatrices(t,this)}multiplyMatrices(t,e){let n=t.elements,i=e.elements,r=this.elements,a=n[0],o=n[3],l=n[6],c=n[1],h=n[4],d=n[7],u=n[2],f=n[5],p=n[8],_=i[0],g=i[3],m=i[6],S=i[1],b=i[4],x=i[7],E=i[2],T=i[5],R=i[8];return r[0]=a*_+o*S+l*E,r[3]=a*g+o*b+l*T,r[6]=a*m+o*x+l*R,r[1]=c*_+h*S+d*E,r[4]=c*g+h*b+d*T,r[7]=c*m+h*x+d*R,r[2]=u*_+f*S+p*E,r[5]=u*g+f*b+p*T,r[8]=u*m+f*x+p*R,this}multiplyScalar(t){let e=this.elements;return e[0]*=t,e[3]*=t,e[6]*=t,e[1]*=t,e[4]*=t,e[7]*=t,e[2]*=t,e[5]*=t,e[8]*=t,this}determinant(){let t=this.elements,e=t[0],n=t[1],i=t[2],r=t[3],a=t[4],o=t[5],l=t[6],c=t[7],h=t[8];return e*a*h-e*o*c-n*r*h+n*o*l+i*r*c-i*a*l}invert(){let t=this.elements,e=t[0],n=t[1],i=t[2],r=t[3],a=t[4],o=t[5],l=t[6],c=t[7],h=t[8],d=h*a-o*c,u=o*l-h*r,f=c*r-a*l,p=e*d+n*u+i*f;if(p===0)return this.set(0,0,0,0,0,0,0,0,0);let _=1/p;return t[0]=d*_,t[1]=(i*c-h*n)*_,t[2]=(o*n-i*a)*_,t[3]=u*_,t[4]=(h*e-i*l)*_,t[5]=(i*r-o*e)*_,t[6]=f*_,t[7]=(n*l-c*e)*_,t[8]=(a*e-n*r)*_,this}transpose(){let t,e=this.elements;return t=e[1],e[1]=e[3],e[3]=t,t=e[2],e[2]=e[6],e[6]=t,t=e[5],e[5]=e[7],e[7]=t,this}getNormalMatrix(t){return this.setFromMatrix4(t).invert().transpose()}transposeIntoArray(t){let e=this.elements;return t[0]=e[0],t[1]=e[3],t[2]=e[6],t[3]=e[1],t[4]=e[4],t[5]=e[7],t[6]=e[2],t[7]=e[5],t[8]=e[8],this}setUvTransform(t,e,n,i,r,a,o){let l=Math.cos(r),c=Math.sin(r);return this.set(n*l,n*c,-n*(l*a+c*o)+a+t,-i*c,i*l,-i*(-c*a+l*o)+o+e,0,0,1),this}scale(t,e){return $n("Matrix3: .scale() is deprecated. Use .makeScale() instead."),this.premultiply(Mc.