;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: "+e)}}clone(){return new this.constructor(this.x,this.y,this.z,this.w)}copy(e){return this.x=e.x,this.y=e.y,this.z=e.z,this.w=e.w!==void 0?e.w:1,this}add(e){return this.x+=e.x,this.y+=e.y,this.z+=e.z,this.w+=e.w,this}addScalar(e){return this.x+=e,this.y+=e,this.z+=e,this.w+=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.w=e.w+t.w,this}addScaledVector(e,t){return this.x+=e.x*t,this.y+=e.y*t,this.z+=e.z*t,this.w+=e.w*t,this}sub(e){return this.x-=e.x,this.y-=e.y,this.z-=e.z,this.w-=e.w,this}subScalar(e){return this.x-=e,this.y-=e,this.z-=e,this.w-=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.w=e.w-t.w,this}multiply(e){return this.x*=e.x,this.y*=e.y,this.z*=e.z,this.w*=e.w,this}multiplyScalar(e){return this.x*=e,this.y*=e,this.z*=e,this.w*=e,this}applyMatrix4(e){let t=this.x,n=this.y,s=this.z,r=this.w,a=e.elements;return this.x=a[0]*t+a[4]*n+a[8]*s+a[12]*r,this.y=a[1]*t+a[5]*n+a[9]*s+a[13]*r,this.z=a[2]*t+a[6]*n+a[10]*s+a[14]*r,this.w=a[3]*t+a[7]*n+a[11]*s+a[15]*r,this}divide(e){return this.x/=e.x,this.y/=e.y,this.z/=e.z,this.w/=e.w,this}divideScalar(e){return this.multiplyScalar(1/e)}setAxisAngleFromQuaternion(e){this.w=2*Math.acos(e.w);let t=Math.sqrt(1-e.w*e.w);return t<1e-4?(this.x=1,this.y=0,this.z=0):(this.x=e.x/t,this.y=e.y/t,this.z=e.z/t),this}setAxisAngleFromRotationMatrix(e){let t,n,s,r,l=e.elements,c=l[0],h=l[4],f=l[8],u=l[1],d=l[5],g=l[9],M=l[2],m=l[6],p=l[10];if(Math.abs(h-u)<.01&&Math.abs(f-M)<.01&&Math.abs(g-m)<.01){if(Math.abs(h+u)<.1&&Math.abs(f+M)<.1&&Math.abs(g+m)<.1&&Math.abs(c+d+p-3)<.1)return this.set(1,0,0,0),this;t=Math.PI;let A=(c+1)/2,v=(d+1)/2,T=(p+1)/2,E=(h+u)/4,C=(f+M)/4,x=(g+m)/4;return A>v&&A>T?A<.01?(n=0,s=.707106781,r=.707106781):(n=Math.sqrt(A),s=E/n,r=C/n):v>T?v<.01?(n=.707106781,s=0,r=.707106781):(s=Math.sqrt(v),n=E/s,r=x/s):T<.01?(n=.707106781,s=.707106781,r=0):(r=Math.sqrt(T),n=C/r,s=x/r),this.set(n,s,r,t),this}let b=Math.sqrt((m-g)*(m-g)+(f-M)*(f-M)+(u-h)*(u-h));return Math.abs(b)<.001&&(b=1),this.x=(m-g)/b,this.y=(f-M)/b,this.z=(u-h)/b,this.w=Math.acos((c+d+p-1)/2),this}setFromMatrixPosition(e){let t=e.elements;return this.x=t[12],this.y=t[13],this.z=t[14],this.w=t[15],this}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.w=Math.min(this.w,e.w),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.w=Math.max(this.w,e.w),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.w=st(this.w,e.w,t.w),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.w=st(this.w,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.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(e){return this.x*e.x+this.y*e.y+this.z*e.z+this.w*e.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(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.w+=(e.w-this.w)*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.w=e.w+(t.w-e.w)*n,this}equals(e){return e.x===this.x&&e.y===this.y&&e.z===this.z&&e.w===this.w}fromArray(e,t=0){return this.x=e[t],this.y=e[t+1],this.z=e[t+2],this.w=e[t+3],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}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this.w=Math.random(),this}*[Symbol.iterator](){yield this.x,yield this.y,yield this.z,yield this.w}};Uh.prototype.isVector4=!0;var Ct=Uh,bo=class extends ai{constructor(e=1,t=1,n={}){super(),n=Object.assign({generateMipmaps:!1,internalFormat:null,minFilter:Kt,depthBuffer:!0,stencilBuffer:!1,resolveColorBuffer:!0,resolveDepthBuffer:!0,resolveStencilBuffer:!0,storeMultisa