this.source.needsUpdate=!0)}set needsPMREMUpdate(t){t===!0&&this.pmremVersion++}};Ae.DEFAULT_IMAGE=null;Ae.DEFAULT_MAPPING=El;Ae.DEFAULT_ANISOTROPY=1;var fe=class s{static{s.prototype.isVector4=!0}constructor(t=0,e=0,n=0,i=1){this.x=t,this.y=e,this.z=n,this.w=i}get width(){return this.z}set width(t){this.z=t}get height(){return this.w}set height(t){this.w=t}set(t,e,n,i){return this.x=t,this.y=e,this.z=n,this.w=i,this}setScalar(t){return this.x=t,this.y=t,this.z=t,this.w=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setZ(t){return this.z=t,this}setW(t){return this.w=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;case 2:this.z=e;break;case 3:this.w=e;break;default:throw new Error("THREE.Vector4: index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;case 2:return this.z;case 3:return this.w;default:throw new Error("THREE.Vector4: index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y,this.z,this.w)}copy(t){return this.x=t.x,this.y=t.y,this.z=t.z,this.w=t.w!==void 0?t.w:1,this}add(t){return this.x+=t.x,this.y+=t.y,this.z+=t.z,this.w+=t.w,this}addScalar(t){return this.x+=t,this.y+=t,this.z+=t,this.w+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this.z=t.z+e.z,this.w=t.w+e.w,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this.z+=t.z*e,this.w+=t.w*e,this}sub(t){return this.x-=t.x,this.y-=t.y,this.z-=t.z,this.w-=t.w,this}subScalar(t){return this.x-=t,this.y-=t,this.z-=t,this.w-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this.z=t.z-e.z,this.w=t.w-e.w,this}multiply(t){return this.x*=t.x,this.y*=t.y,this.z*=t.z,this.w*=t.w,this}multiplyScalar(t){return this.x*=t,this.y*=t,this.z*=t,this.w*=t,this}applyMatrix4(t){let e=this.x,n=this.y,i=this.z,r=this.w,a=t.elements;return this.x=a[0]*e+a[4]*n+a[8]*i+a[12]*r,this.y=a[1]*e+a[5]*n+a[9]*i+a[13]*r,this.z=a[2]*e+a[6]*n+a[10]*i+a[14]*r,this.w=a[3]*e+a[7]*n+a[11]*i+a[15]*r,this}divide(t){return this.x/=t.x,this.y/=t.y,this.z/=t.z,this.w/=t.w,this}divideScalar(t){return this.multiplyScalar(1/t)}setAxisAngleFromQuaternion(t){this.w=2*Math.acos(t.w);let e=Math.sqrt(1-t.w*t.w);return e<1e-4?(this.x=1,this.y=0,this.z=0):(this.x=t.x/e,this.y=t.y/e,this.z=t.z/e),this}setAxisAngleFromRotationMatrix(t){let e,n,i,r,l=t.elements,c=l[0],h=l[4],d=l[8],u=l[1],f=l[5],p=l[9],_=l[2],g=l[6],m=l[10];if(Math.abs(h-u)<.01&&Math.abs(d-_)<.01&&Math.abs(p-g)<.01){if(Math.abs(h+u)<.1&&Math.abs(d+_)<.1&&Math.abs(p+g)<.1&&Math.abs(c+f+m-3)<.1)return this.set(1,0,0,0),this;e=Math.PI;let b=(c+1)/2,x=(f+1)/2,E=(m+1)/2,T=(h+u)/4,R=(d+_)/4,v=(p+g)/4;return b>x&&b>E?b<.01?(n=0,i=.707106781,r=.707106781):(n=Math.sqrt(b),i=T/n,r=R/n):x>E?x<.01?(n=.707106781,i=0,r=.707106781):(i=Math.sqrt(x),n=T/i,r=v/i):E<.01?(n=.707106781,i=.707106781,r=0):(r=Math.sqrt(E),n=R/r,i=v/r),this.set(n,i,r,e),this}let S=Math.sqrt((g-p)*(g-p)+(d-_)*(d-_)+(u-h)*(u-h));return Math.abs(S)<.001&&(S=1),this.x=(g-p)/S,this.y=(d-_)/S,this.z=(u-h)/S,this.w=Math.acos((c+f+m-1)/2),this}setFromMatrixPosition(t){let e=t.elements;return this.x=e[12],this.y=e[13],this.z=e[14],this.w=e[15],this}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this.z=Math.min(this.z,t.z),this.w=Math.min(this.w,t.w),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this.z=Math.max(this.z,t.z),this.w=Math.max(this.w,t.w),this}clamp(t,e){return this.x=kt(this.x,t.x,e.x),this.y=kt(this.y,t.y,e.y),this.z=kt(this.z,t.z,e.z),this.w=kt(this.w,t.w,e.w),this}clampScalar(t,e){return this.x=kt(this.x,t,e),this.y=kt(this.y,t,e),this.z=kt(this.z,t,e),this.w=kt(this.w,t,e),this}clampLength(t,e){let n=this.length();return this.divideScalar(n||1).multiplyScalar(kt(n,t,e))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this.w=Math.floor(this.w),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this.w=Math.ceil(this.w),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this.w=Math.round(this.w),this}roundToZero(){return this.x=Math.trunc(this.x),this.y=Math.trunc(this.y),this.z=Math.trunc(this.z),this.w=Math.trunc(this.w),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this.w=-this.w,this}dot(t){return this.x*t.x+this.y*t.y+this.z*t.z+this.w*t.w}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)+Math.abs(this.w)}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.w+=(t.w-this.w)*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