&n.isVector3))i.copy(n);else if(i&&n&&(i.isMatrix3&&n.isMatrix3))i.copy(n);else this[e]=n}}toJSON(t){let e=t===void 0||typeof t==="string";if(!e&&t.textures[this.uuid]!==void 0)return t.textures[this.uuid];let n={metadata:{version:4.7,type:"Texture",generator:"Texture.toJSON"},uuid:this.uuid,name:this.name,image:this.source.toJSON(t).uuid,mapping:this.mapping,channel:this.channel,repeat:[this.repeat.x,this.repeat.y],offset:[this.offset.x,this.offset.y],center:[this.center.x,this.center.y],rotation:this.rotation,wrap:[this.wrapS,this.wrapT],format:this.format,internalFormat:this.internalFormat,type:this.type,colorSpace:this.colorSpace,minFilter:this.minFilter,magFilter:this.magFilter,anisotropy:this.anisotropy,flipY:this.flipY,generateMipmaps:this.generateMipmaps,premultiplyAlpha:this.premultiplyAlpha,unpackAlignment:this.unpackAlignment};if(Object.keys(this.userData).length>0)n.userData=this.userData;if(!e)t.textures[this.uuid]=n;return n}dispose(){this.dispatchEvent({type:"dispose"})}transformUv(t){if(this.mapping!==300)return t;if(t.applyMatrix3(this.matrix),t.x<0||t.x>1)switch(this.wrapS){case 1000:t.x=t.x-Math.floor(t.x);break;case 1001:t.x=t.x<0?0:1;break;case 1002:if(Math.abs(Math.floor(t.x)%2)===1)t.x=Math.ceil(t.x)-t.x;else t.x=t.x-Math.floor(t.x);break}if(t.y<0||t.y>1)switch(this.wrapT){case 1000:t.y=t.y-Math.floor(t.y);break;case 1001:t.y=t.y<0?0:1;break;case 1002:if(Math.abs(Math.floor(t.y)%2)===1)t.y=Math.ceil(t.y)-t.y;else t.y=t.y-Math.floor(t.y);break}if(this.flipY)t.y=1-t.y;return t}set needsUpdate(t){if(t===!0)this.version++,this.source.needsUpdate=!0}set needsPMREMUpdate(t){if(t===!0)this.pmremVersion++}}bn.DEFAULT_IMAGE=null;bn.DEFAULT_MAPPING=300;bn.DEFAULT_ANISOTROPY=1;class Le{constructor(t=0,e=0,n=0,i=1){Le.prototype.isVector4=!0,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 Error("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 Error("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,s=this.w,a=t.elements;return this.x=a[0]*e+a[4]*n+a[8]*i+a[12]*s,this.y=a[1]*e+a[5]*n+a[9]*i+a[13]*s,this.z=a[2]*e+a[6]*n+a[10]*i+a[14]*s,this.w=a[3]*e+a[7]*n+a[11]*i+a[15]*s,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);if(e<0.0001)this.x=1,this.y=0,this.z=0;else this.x=t.x/e,this.y=t.y/e,this.z=t.z/e;return this}setAxisAngleFromRotationMatrix(t){let e,n,i,s,a=0.01,r=0.1,o=t.elements,l=o[0],c=o[4],u=o[8],f=o[1],h=o[5],p=o[9],v=o[2],y=o[6],U=o[10];if(Math.abs(c-f)<0.01&&Math.abs(u-v)<0.01&&Math.abs(p-y)<0.01){if(Math.abs(c+f)<0.1&&Math.abs(u+v)<0.1&&Math.abs(p+y)<0.1&&Math.abs(l+h+U-3)<0.1)return this.set(1,0,0,0),this;e=Math.PI;let g=(l+1)/2,m=(h+1)/2,x=(U+1)/2,S=(c+f)/4,A=(u+v)/4,T=(p+y)/4;if(g>m&&g>x)if(g<0.01)n=0,i=0.707106781,s=0.707106781;else n=Math.sqrt(g),i=S/n,s=A/n;else if(m>x)if(m<0.01)n=0.707106781,i=0,s=0.707106781;else i=Math.sqrt(m),n=S/i,s=T/i;else if(x<0.01)n=0.707106781,i=0.707106781,s=0;else s=Math.sqrt(x),n=A/s,i=T/s;return this.set(n,i,s,e),this}let d=Math.sqrt((y-p)*(y-p)+(u-v)*(u-v)+(f-c)*(f-c));if(Math.abs(d)<0.001)d=1;return this.x=(y-p)/d,this.y=(u-v)/d,this.z=(f-c)/d,this.w=Math.acos((l+h+U-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