import{M as e,co as t,bi as n,bu as o,aV as r,F as s,aW as i,V as a,cp as l,i as c,m as u,c1 as f,aU as p,bs as d,aD as h,aR as m,bn as g}from"./index-OM-TXt9s.esm.min.js";import{S as y}from"./standardMaterial.pure-CDkApYCL.esm.min.js";import{S as b}from"./skeleton-CVVbMGoG.esm.min.js";import{B as v}from"./bone.pure-DxlM4RQF.esm.min.js";import{A as x}from"./animationGroup.pure-CtDCPZp-.esm.min.js";import{M,a as I,F as w}from"./morphTargetManager-DVR41bOb.esm.min.js";import{P as A}from"./pointLight.pure-v7CSz3M6.esm.min.js";import{S as T}from"./spotLight.pure-guqQj5Iw.esm.min.js";import{A as S}from"./assetContainer-BpKLnjKZ.esm.min.js";import"./prepass.defines-izweOGjj.esm.min.js";import"./material.detailMapConfiguration-CnvG2ZB5.esm.min.js";const C=15,_=[3,4,5,6,7,8,9,10,11,13,15,17,19,23,27,31,35,43,51,59,67,83,99,115,131,163,195,227,258],O=[0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0],N=[1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577],F=[0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13],B=[16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15];class P{constructor(e,t,n){this.input=e,this.byteOffset=t,this.endOffset=n,this.bitBuffer=0,this.bitCount=0}readBits(e){this.ensureBits(e);const t=this.bitBuffer&(1<<e)-1;return this.bitBuffer>>>=e,this.bitCount-=e,t}readBit(){if(0===this.bitCount){if(this.byteOffset>=this.endOffset)throw new Error("zlib: unexpected end of input");this.bitBuffer=this.input[this.byteOffset++],this.bitCount=8}const e=1&this.bitBuffer;return this.bitBuffer>>>=1,this.bitCount--,e}alignToByte(){this.bitBuffer=0,this.bitCount=0}readUint16LE(){if(this.ensureByteAligned(),this.byteOffset+2>this.endOffset)throw new 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n=0;n<t;n++)this.writeByte(this.bytes[this.offset-e])}finish(){if(this.offset!==this.bytes.byteLength)throw new Error("zlib: output length mismatch")}adler32(){return(this.adlerB<<16|this.adlerA)>>>0}}class L{constructor(e,t={}){const n=new Array(16).fill(0);let o=0,r=0;for(const t of e){if(!Number.isInteger(t)||t<0||t>C)throw new Error("deflate: invalid huffman code lengths");t>0&&(n[t]++,o++,r=Math.max(r,t))}if(0===o){if(t.allowEmpty)return this.symbolsByLength=[],void(this.maxCodeLength=0);throw new Error("deflate: invalid huffman code lengths")}let s=1;for(let e=1;e<=C;e++)if(s=(s<<1)-n[e],s<0)throw new Error("deflate: invalid huffman code lengths");if(0!==s&&1!==o)throw new Error("deflate: invalid huffman code lengths");const i=new Array(16).fill(0);let a=0;for(let e=1;e<=C;e++)a=a+n[e-1]<<1,i[e]=a;this.symbolsByLength=Array.from({length:16},(e,t)=>{if(0===n[t])return;const o=new Int16Array(1<<t);return o.fill(-1),o});for(let t=0;t<e.length;t++){const n=e[t];0!==n&&(this.symbolsByLength[n][i[n]++]=t)}this.maxCodeLength=r}decode(e){if(0===this.maxCodeLength)throw new Error("deflate: invalid huffman code");let t=0;for(let n=1;n<=this.maxCodeLength;n++){t=t<<1|e.readBit();const o=this.symbolsByLength[n]?.[t]??-1;if(o>=0)return o}throw new Error("deflate: invalid huffman code")}}let k,R;function $(){if(!k){const e=new Array(288);for(let t=0;t<=143;t++)e[t]=8;for(let t=144;t<=255;t++)e[t]=9;for(let t=256;t<=279;t++)e[t]=7;for(let t=280;t<=287;t++)e[t]=8;k=new L(e)}return k}function D(){return R||(R=new L(new Array(32).fill(5))),R}function X(e,t){e.alignToByte();const n=e.readUint16LE();if(65535&(n^~e.readUint16LE()))throw new Error("deflate: invalid stored block length");for(let o=0;o<n;o++)t.writeByte(e.readByte())}function V(e,t,n,o){for(;;){const r=n.decode(e);if(r<256){t.writeByte(r);continue}if(256===r)return;if(r>285)throw new Error("deflate: invalid literal/length symbol");const 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r=String.fromCharCode(t[n]);switch(n+=1,r){case"C":K(t,n,1,o,"FBX boolean property");return{property:{type:"boolean",value:0!==t[n]},nextOffset:n+1};case"Y":K(t,n,2,o,"FBX int16 property");return{property:{type:"int16",value:e.getInt16(n,!0)},nextOffset:n+2};case"I":K(t,n,4,o,"FBX int32 property");return{property:{type:"int32",value:e.getInt32(n,!0)},nextOffset:n+4};case"F":K(t,n,4,o,"FBX float32 property");return{property:{type:"float32",value:e.getFloat32(n,!0)},nextOffset:n+4};case"D":K(t,n,8,o,"FBX float64 property");return{property:{type:"float64",value:e.getFloat64(n,!0)},nextOffset:n+8};case"L":K(t,n,8,o,"FBX int64 property");return{property:{type:"int64",value:G(e,n)},nextOffset:n+8};case"S":{K(t,n,4,o,"FBX string property length");const r=e.getUint32(n,!0);K(t,n+4,r,o,"FBX string property data");const s=function(e,t,n){return new TextDecoder("utf-8").decode(e.subarray(t,t+n))}(t,n+4,r);return{property:{type:"string",value:s},nextOffset:n+4+r}}case"R":{K(t,n,4,o,"FBX raw 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P(e,2,e.byteLength-4),s=new E(t);let i=!1;for(;!i;)switch(i=1===r.readBits(1),r.readBits(2)){case 0:X(r,s);break;case 1:V(r,s,$(),D());break;case 2:{const{literalLengthTree:e,distanceTree:t}=j(r);V(r,s,e,t);break}default:throw new Error("deflate: invalid block type")}if(r.byteOffset<e.byteLength-4)throw new Error("zlib: trailing deflate data");s.finish();const a=(e[e.byteLength-4]<<24|e[e.byteLength-3]<<16|e[e.byteLength-2]<<8|e[e.byteLength-1])>>>0;if(s.adler32()!==a)throw new Error("zlib: adler32 mismatch");return s.bytes}(t.subarray(n,n+l),c)}else{if(0!==a)throw new Error(`Unsupported FBX array encoding: ${a}`);if(l!==c)throw new Error(`Invalid FBX array byte length for ${o}`);u=t.slice(n,n+l)}const f=u.buffer.slice(u.byteOffset,u.byteOffset+u.byteLength);let p;switch(o){case"float32[]":p=new Float32Array(f);break;case"float64[]":p=new Float64Array(f);break;case"int32[]":p=new Int32Array(f);break;case"boolean[]":p=u;break;case"int64[]":p=function(e){const t=new DataView(e.buffer,e.byteOffset,e.byteLength),n=new Float64Array(e.byteLength/8);for(let e=0;e<n.length;e++)n[e]=G(t,8*e);return n}(u);break;default:throw new Error(`Unexpected array type: ${o}`)}return{property:{type:o,value:p},nextOffset:n+l}}function K(e,t,n,o,r){if(t<0||n<0||t+n>o||t+n>e.byteLength)throw new Error(`${r}: unexpected end of input`)}function z(e,t){const n=e.getUint32(t,!0);return 4294967296*e.getUint32(t+4,!0)+n}function G(e,t){const n=e.getUint32(t,!0);return 4294967296*e.getInt32(t+4,!0)+n}function Z(e,t,n){let o="";for(let r=0;r<n;r++)o+=String.fromCharCode(e[t+r]);return o}function H(e){const t=new q(e),n=function(e){const t=e.match(/;\s*FBX\s+(\d+)\.(\d+)\.(\d+)/);if(!t)throw new Error("Cannot determine FBX version from ASCII header");return 1e3*parseInt(t[1])+100*parseInt(t[2])+parseInt(t[3])}(e),o=[];for(;!t.isEOF()&&(t.skipWhitespaceAndComments(),!t.isEOF());){const e=J(t);e&&o.push(e)}return{version:n,nodes:o}}var Q;!function(e){e[e.Identifier=0]="Identifier",e[e.Number=1]="Number",e[e.String=2]="String",e[e.OpenBrace=3]="OpenBrace",e[e.CloseBrace=4]="CloseBrace",e[e.Colon=5]="Colon",e[e.Comma=6]="Comma",e[e.Star=7]="Star",e[e.EOF=8]="EOF"}(Q||(Q={}));class q{constructor(e){this.text=e,this.pos=0,this.len=e.length}isEOF(){return this.skipWhitespaceAndComments(),this.pos>=this.len}peek(){const e=this.pos,t=this.next();return this.pos=e,t}next(){if(this.skipWhitespaceAndComments(),this.pos>=this.len)return{type:8,value:"",pos:this.pos};const e=this.text[this.pos],t=this.pos;switch(e){case"{":return this.pos++,{type:3,value:"{",pos:t};case"}":return this.pos++,{type:4,value:"}",pos:t};case":":return this.pos++,{type:5,value:":",pos:t};case",":return this.pos++,{type:6,value:",",pos:t};case"*":return this.pos++,{type:7,value:"*",pos:t};case'"':return this.readString();default:if(this.isNumberStart(e))return this.readNumber();if(this.isIdentStart(e))return this.readIdentifier();throw new Error(`Unexpected character '${e}' at position ${this.pos}`)}}expect(e){const t=this.next();if(t.type!==e)throw new Error(`Expected token type ${e} but got ${t.type} ('${t.value}') at pos ${t.pos}`);return t}isNextNodeStart(){const e=this.pos;if(this.skipWhitespaceAndComments(),this.pos<this.len&&this.isIdentStart(this.text[this.pos])){for(;this.pos<this.len&&this.isIdentChar(this.text[this.pos]);)this.pos++;for(;this.pos<this.len&&(" "===this.text[this.pos]||"\t"===this.text[this.pos]);)this.pos++;const t=this.pos<this.len&&":"===this.text[this.pos];return this.pos=e,t}return this.pos=e,!1}skipWhitespaceAndComments(){for(;this.pos<this.len;){const e=this.text[this.pos];if(" "===e||"\t"===e||"\r"===e||"\n"===e)this.pos++;else{if(";"!==e)break;for(;this.pos<this.len&&"\n"!==this.text[this.pos];)this.pos++}}}readString(){const e=this.pos;this.pos++;let t="";for(;this.pos<this.len&&'"'!==this.text[this.pos];)"\\"===this.text[this.pos]&&this.pos+1<this.len?(this.pos++,t+=this.text[this.pos]):t+=this.text[this.pos],this.pos++;return this.pos<this.len&&this.pos++,{type:2,value:t,pos:e}}readNumber(){const e=this.pos;for("-"!==this.text[this.pos]&&"+"!==this.text[this.pos]||this.pos++;this.pos<this.len&&this.isDigit(this.text[this.pos]);)this.pos++;if(this.pos<this.len&&"."===this.text[this.pos])for(this.pos++;this.pos<this.len&&this.isDigit(this.text[this.pos]);)this.pos++;if(this.pos<this.len&&("e"===this.text[this.pos]||"E"===this.text[this.pos]))for(this.pos++,this.pos<this.len&&("+"===this.text[this.pos]||"-"===this.text[this.pos])&&this.pos++;this.pos<this.len&&this.isDigit(this.text[this.pos]);)this.pos++;return{type:1,value:this.text.substring(e,this.pos),pos:e}}readIdentifier(){const 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Scaling",[1,1,1]),s=Ce(e,t,"PreRotation",[0,0,0]),i=Ce(e,t,"PostRotation",[0,0,0]),a=Ce(e,t,"RotationPivot",[0,0,0]),l=Ce(e,t,"ScalingPivot",[0,0,0]),c=Ce(e,t,"RotationOffset",[0,0,0]),u=Ce(e,t,"ScalingOffset",[0,0,0]),f=Ce(e,t,"GeometricTranslation",[0,0,0]),p=Ce(e,t,"GeometricRotation",[0,0,0]),d=Ce(e,t,"GeometricScaling",[1,1,1]),h=Se(e,t,"RotationOrder",0),m=Se(e,t,"InheritType",1);return{translation:n,rotation:o,scale:r,preRotation:s,postRotation:i,rotationPivot:a,scalingPivot:l,rotationOffset:c,scalingOffset:u,geometricTranslation:f,geometricRotation:p,geometricScaling:d,rotationOrder:h,inheritType:m,diagnostics:1!==m&&2!==m?[`InheritType ${m} is parsed and preserved; runtime parent-scale inheritance remains gated to avoid changing existing visual behavior without a fixture-specific baseline.`]:[]}}(t,Ae(s,"Model","FbxNode")??Ae(s,"Model")),d=ie(n,e,"Model"),h=[];for(const{id:e,node:t}of d)h.push(Bt(e,t,n,o,r,s));const m=t.children.find(e=>"Culling"===e.name),g=!!m&&"CullingOff"===re(m,0),y=function(e){const t=ne(e,"Properties70");if(!t)return;const n={};let o=!1;for(const e of t.children){if("P"!==e.name)continue;const t=re(e,0);if(!t||Pt.has(t))continue;const r=e.properties[4]?.value;void 0!==r&&(("string"==typeof r||"number"==typeof r||"boolean"==typeof r)&&(n[t]=r,o=!0))}return o?n:void 0}(t);return{id:e,name:i,subType:a,geometry:c,materials:f,children:h,cullingOff:g,customProperties:y,...p}}const Pt=new Set(["Lcl Translation","Lcl Rotation","Lcl Scaling","PreRotation","PostRotation","RotationPivot","ScalingPivot","RotationOffset","ScalingOffset","RotationOrder","GeometricTranslation","GeometricRotation","GeometricScaling","Visibility","InheritType","ScalingMax","DefaultAttributeIndex","currentUVSet","lockInfluenceWeights"]);const Et=new Set(["FieldOfView","FieldOfViewX","FieldOfViewY","NearPlane","FarPlane","AspectWidth","AspectHeight","FilmAspectRatio","FocalLength","FilmWidth","FilmHeight","ApertureWidth","ApertureHeight","CameraProjectionType","ProjectionType","OrthoZoom","Roll","ApertureMode"]),Lt=new Set(["LightType","Color","Intensity","InnerAngle","OuterAngle","ConeAngle","DecayType","DecayStart","EnableNearAttenuation","EnableFarAttenuation","CastShadow","Shadow"]);function kt(e){if("number"==typeof e)return e}function Rt(e){return"boolean"==typeof e?e:"number"==typeof e?0!==e:void 0}function $t(e,t){const n=kt(Te(e,t,"FilmAspectRatio"));if(void 0!==n&&n>0)return n;const o=kt(Te(e,t,"AspectWidth")),r=kt(Te(e,t,"AspectHeight"));return void 0!==o&&void 0!==r&&o>0&&r>0?o/r:0}function Dt(e,t,n,o,r){const s=kt(Te(e,t,"FieldOfViewY"))??kt(Te(e,t,"FieldOfView"));if(void 0!==s)return s;const i=kt(Te(e,t,"FieldOfViewX"));return void 0!==i?n>0?Vt(2*Math.atan(Math.tan(i*Math.PI/180/2)/n)):i:void 0!==o&&o>0&&void 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WeakSet,this._sourceBonesBySkeleton=new WeakMap,this._scaleCompensationHelpersBySkeleton=new WeakMap,this._options={normalMapCoordinateSystem:e.normalMapCoordinateSystem??"y-up"}}createPlugin(e){return new Yt(e[t.name])}async importMeshAsync(e,t,n,o,r,s){const i=Ft(this._parse(n));return this._buildScene(i,t,o,e)}async loadAsync(e,t,n,o,r){const s=Ft(this._parse(t));this._buildScene(s,e,n,null)}async loadAssetContainerAsync(e,t,n,o,r){const s=Ft(this._parse(t)),i=new S(e),a=this._buildScene(s,e,n,null);for(const e of a.meshes)i.meshes.push(e);for(const e of a.skeletons)i.skeletons.push(e);for(const e of a.animationGroups)i.animationGroups.push(e);for(const e of a.transformNodes)i.transformNodes.push(e);for(const e of a.lights)i.lights.push(e);for(const e of a.cameras)i.cameras.push(e);for(const e of a.materials)this._addMaterialToContainer(e,i);for(const e of a.textures)this._addTextureToContainer(e,i);for(const e of a.meshes)this._addMaterialToContainer(e.material,i);return this._setAssetContainer(i),i.removeAllFromScene(),i}_parse(e){if(e instanceof ArrayBuffer)return this._parseFromArrayBuffer(e);if(ArrayBuffer.isView(e)){const t=e,n=t.buffer.slice(t.byteOffset,t.byteOffset+t.byteLength);return this._parseFromArrayBuffer(n)}if("string"==typeof e)return H(e);throw new Error("FBXFileLoader: unsupported data type")}_parseFromArrayBuffer(e){const t=new Uint8Array(e,0,Math.min(21,e.byteLength));if(String.fromCharCode(...t).startsWith("Kaydara FBX Binary"))return function(e){const t=new DataView(e),n=new Uint8Array(e);if("Kaydara FBX Binary  \0"!==Z(n,0,21))throw new Error("Not a valid binary FBX file");if(e.byteLength<27)throw new Error("Truncated binary FBX header");const o=t.getUint32(23,!0),r=o>=7500,s=[];let i=27;for(;i<e.byteLength;){const o=U(t,n,i,r,e.byteLength);if(null===o)break;s.push(o.node),i=o.endOffset}return{version:o,nodes:s}}(e);const n=new TextDecoder("utf-8").decode(e);if(n.trimStart().startsWith("; FBX"))return H(n);throw new Error("FBXFileLoader: unrecognized FBX format")}_buildScene(t,o,r,s){const i=this._buildNameFilter(s),a=new Map;for(const e of t.materials){const t=this._createMaterial(e,o,r);a.set(e.id,t)}const l=[],c=new Map,u=new Map,f=new Map,p=new Map,d=new Map;for(const e of t.skins)d.set(e.id,e);for(const e of t.rigs){const t=this._createSkeleton(e.id,e.bones,o);l.push(t),c.set(e.id,t);for(const n of e.skinBindings){const e=d.get(n.skinId);e&&(u.set(n.geometryId,t),f.set(n.geometryId,e),p.set(n.geometryId,n))}}const h=new Map,m=e=>{for(const t of e)h.set(t.id,t),m(t.children)};m(t.rootModels);const g=Yt._collectCullingConflictMaterialIds(t.rootModels),y=new Map,b=new n("__fbx_root__",o);o.useRightHandedSystem||(b.rotation.y=Math.PI,b.scaling.z=-1);const v=[],x=[b];let M=b;const I=Yt._computeFBXAxisConversionMatrix(t);I.equals(e.Identity())||(M=new n("__fbx_axis_conversion__",o),M.parent=b,Yt._applyMatrixToTransform(M,I),x.push(M));const w=new Map,A=e.Identity();for(const e of t.rootModels)this._buildModel(e,o,M,M,A,a,i,v,x,u,f,p,w,g,y);this._linkSkeletonsToTransformNodes(t.rigs,c,w,x,o);for(const n of t.rigs){const t=c.get(n.id);if(!t)continue;const o=v.find(e=>e.skeleton===t)??null,r=o??b,s=new Set;for(const e of t.bones){const t=e.getTransformNode();t&&s.add(t)}for(const i of n.bones){if(!i.isCluster)continue;const n=w.get(i.modelId),a=this._getSourceBone(t,i.index);if(n&&a)for(const i of[...n.getChildren()]){const n=i;if(!s.has(n)){const s=n.computeWorldMatrix(!0).clone(),i=Yt._getBoneReferenceWorldMatrix(t,a,r,o),l=new e;i.invertToRef(l);const c=s.multiply(l);n.parent=null,n.attachToBone(a,r),Yt._applyMatrixToTransform(n,c)}}}}t.blendShapes.length>0&&this._applyBlendShapes(t.blendShapes,v,o);const T=[];for(const e of t.animations){const n=this._createAnimationGroup(e,t.rigs,c,o,w,h,v);n&&T.push(n)}const S=[];for(const e of t.cameras){const t=this._createCamera(e,w,o);t&&S.push(t)}const C=[];for(const e of t.lights){const t=this._createLight(e,w,o);t&&C.push(t)}return{meshes:v,particleSystems:[],skeletons:l,animationGroups:T,transformNodes:x,geometries:[],lights:C,spriteManagers:[],materials:Array.from(a.values()),textures:Array.from(new Set(Array.from(a.values()).flatMap(e=>e.getActiveTextures()))),cameras:S}}_addMaterialToContainer(e,t){if(e){if(e instanceof o){t.multiMaterials.includes(e)||t.multiMaterials.push(e);for(const n of e.subMaterials)this._addMaterialToContainer(n,t)}else t.materials.includes(e)||t.materials.push(e);for(const n of e.getActiveTextures())this._addTextureToContainer(n,t)}}_addTextureToContainer(e,t){t.textures.includes(e)||t.textures.push(e)}_setAssetContainer(e){for(const t of e.meshes)t._parentContainer=e;for(const t of e.transformNodes)t._parentContainer=e;for(const t of e.skeletons)t._parentContainer=e;for(const t of e.animationGroups)t._parentContainer=e;for(const t of e.lights)t._parentContainer=e;for(const t of e.cameras)t._parentContainer=e;for(const t of e.materials)t._parentContainer=e;for(const t of e.multiMaterials)t._parentContainer=e;for(const t of e.textures)t._parentContainer=e}static _computeFBXAxisConversionMatrix(t){const n=[[0,0,0],[0,0,0],[0,0,0]],o=(e,t,o)=>{if(e<0||e>2)return;const r=[0,0,0];r[o]=t>=0?1:-1,n[e]=r};return o(t.coordAxis,t.coordAxisSign,0),o(t.upAxis,t.upAxisSign,1),o(t.frontAxis,t.frontAxisSign,2),n.some(e=>e.every(e=>0===e))?e.Identity():e.FromValues(n[0][0],n[0][1],n[0][2],0,n[1][0],n[1][1],n[1][2],0,n[2][0],n[2][1],n[2][2],0,0,0,0,1)}_buildModel(t,o,r,s,i,a,l,c,u,f,p,d,h,m,g){const y=Yt._computeFBXModelLocalMatrix(t).multiply(i);if(!t.geometry||"Mesh"!==t.subType||l&&!l(t.name)){if(t.geometry&&"Mesh"===t.subType&&l&&!Yt._modelSubtreeMatchesNameFilter(t,l))return;const e=new n(t.name,o);r&&(e.parent=r),Yt._applyFBXTransform(e,t),u.push(e),h.set(t.id,e),Yt._applyModelMetadata(e,t);for(const n of t.children)this._buildModel(n,o,e,s,y,a,l,c,u,f,p,d,h,m,g)}else{const n=f.get(t.geometry.id),i=p.get(t.geometry.id),b=d.get(t.geometry.id);n&&i&&(n.needInitialSkinMatrix=!0);const v=this._createMesh(t,t.geometry,o,n,i,b);if(n&&i){const t=i.meshBindPoseMatrix?e.FromArray(i.meshBindPoseMatrix):y;v.parent=s,Yt._applyMatrixToTransform(v,t),v.computeWorldMatrix(!0),v.updatePoseMatrix(e.Invert(t)),v.alwaysSelectAsActiveMesh=!0}else r&&(v.parent=r),Yt._applyFBXTransform(v,t);if(t.materials.length>1&&t.geometry?.materialIndices)this._applyMultiMaterial(v,t,a,o,m,g);else if(t.materials.length>0){const e=a.get(t.materials[0].id);e&&(v.material=Yt._getModelMaterial(e,t,g,m.has(t.materials[0].id)))}t.geometry?.colors&&this._useUnmodulatedVertexColorMaterials(v,o),this._applyMaterialUVSetCoordinates(v.material,t.geometry),c.push(v),h.set(t.id,v),Yt._applyModelMetadata(v,t);for(const e of t.children)this._buildModel(e,o,v,s,y,a,l,c,u,f,p,d,h,m,g)}}_linkSkeletonsToTransformNodes(e,t,o,r,s){for(const i of e){const e=t.get(i.id);if(e)for(const t of i.bones){const i=this._getSourceBone(e,t.index),a=o.get(t.modelId);if(!i||!a)continue;const l=this._getScaleCompensationHelper(e,t.index);if(l){const e=new n(l.name,s);e.parent=a.parent,a.parent=e,Yt._applyMatrixToTransform(e,l.getLocalMatrix()),Yt._applyMatrixToTransform(a,i.getLocalMatrix()),l.linkTransformNode(e),r.push(e)}else Yt._applyMatrixToTransform(a,i.getLocalMatrix());i.linkTransformNode(a)}}}static _modelSubtreeMatchesNameFilter(e,t){for(const n of e.children){if(n.geometry&&"Mesh"===n.subType&&t(n.name))return!0;if(Yt._modelSubtreeMatchesNameFilter(n,t))return!0}return!1}static _applyModelMetadata(e,t){(t.customProperties||0!==t.diagnostics.length)&&(e.metadata={...e.metadata??{},...t.customProperties?{fbxCustomProperties:t.customProperties}:{},...t.diagnostics.length>0?{fbxDiagnostics:t.diagnostics}:{}})}_createMesh(t,n,o,l,c,u){const f=new r(t.name,o);f.sideOrientation=o.useRightHandedSystem?s.CounterClockWiseSideOrientation:s.ClockWiseSideOrientation;const p=new i,d=Kt(n.positions),h=t.geometricTranslation,m=t.geometricRotation,g=t.geometricScaling,y=Yt._computeFBXGeometricMatrix(h,m,g),b=Yt._computeFBXGeometricDeltaMatrix(m,g),v=Yt._computeFBXGeometricNormalMatrix(m,g),x=!y.equals(e.Identity()),M=!b.equals(e.Identity()),I=!v.equals(e.Identity());if(x)for(let e=0;e<d.length;e+=3){const t=a.TransformCoordinates(new a(d[e],d[e+1],d[e+2]),y);d[e]=t.x,d[e+1]=t.y,d[e+2]=t.z}let w;if(p.positions=d,p.indices=Array.from(n.indices),n.normals){if(w=Kt(n.normals),I)for(let e=0;e<w.length;e+=3){const t=a.TransformNormal(new a(w[e],w[e+1],w[e+2]),v);t.lengthSquared()>0&&t.normalize(),w[e]=t.x,w[e+1]=t.y,w[e+2]=t.z}p.normals=w}if(n.uvs&&(p.uvs=Kt(n.uvs)),n.uvSets.length>1&&(p.uvs2=Kt(n.uvSets[1].data)),n.uvSets.length>2&&(p.uvs3=Kt(n.uvSets[2].data)),n.uvSets.length>3&&(p.uvs4=Kt(n.uvSets[3].data)),n.uvSets.length>4&&(p.uvs5=Kt(n.uvSets[4].data)),n.uvSets.length>5&&(p.uvs6=Kt(n.uvSets[5].data)),n.tangents){const e=Kt(n.tangents);if(I)for(let t=0;t<e.length;t+=4){const n=a.TransformNormal(new a(e[t],e[t+1],e[t+2]),v);n.lengthSquared()>0&&n.normalize(),e[t]=n.x,e[t+1]=n.y,e[t+2]=n.z}!function(e,t){if(1===t)return;for(let n=3;n<e.length;n+=4)e[n]*=t}(e,this._getNormalMapTangentHandednessScale()),p.tangents=e}else w&&p.uvs&&(p.tangents=function(e,t,n,o,r=1,s=null,i=null){const a=e.length/3,l=new Map,c=new Array(a).fill(null);for(let r=0;r+2<o.length;r+=3){const a=i?i[r/3]:0,u=o[r],f=o[r+1],p=o[r+2],d=3*u,h=3*f,m=3*p,g=2*u,y=2*f,b=2*p,v=e[h]-e[d],x=e[m]-e[d],M=e[h+1]-e[d+1],I=e[m+1]-e[d+1],w=e[h+2]-e[d+2],A=e[m+2]-e[d+2],T=n[y]-n[g],S=n[b]-n[g],C=n[y+1]-n[g+1],_=n[b+1]-n[g+1],O=T*_-S*C;if(Math.abs(O)<1e-8)continue;const N=1/O,F=(_*v-C*x)*N,B=(_*M-C*I)*N,P=(_*w-C*A)*N,E=(T*x-S*v)*N,L=(T*I-S*M)*N,k=(T*A-S*w)*N;zt(u,f,p,F,B,P,E,L,k,e,t,n,s,a,l,c),zt(f,p,u,F,B,P,E,L,k,e,t,n,s,a,l,c),zt(p,u,f,F,B,P,E,L,k,e,t,n,s,a,l,c)}const u=new Float32Array(4*a);for(let e=0;e<a;e++){const n=3*e,o=4*e,[s,i,a]=Gt(t[n],t[n+1],t[n+2]),f=c[e]?l.get(c[e]):void 0,p=f?.tx??0,d=f?.ty??0,h=f?.tz??0,m=s*p+i*d+a*h;let g=p-s*m,y=d-i*m,b=h-a*m;const v=Math.hypot(g,y,b);v>1e-8?(g/=v,y/=v,b/=v):[g,y,b]=Ht(s,i,a);const x=f?.bx??0,M=f?.by??0,I=f?.bz??0,w=i*b-a*y,A=a*g-s*b,T=s*y-i*g,S=Math.hypot(x,M,I)>1e-8&&w*x+A*M+T*I<0?-1:1;u[o]=g,u[o+1]=y,u[o+2]=b,u[o+3]=S*r}return u}(d,w,p.uvs,n.indices,this._getNormalMapTangentHandednessScale(),n.controlPointIndices,n.materialIndices));if(n.colors){const e=new Float32Array(n.colors.length);for(let t=0;t<e.length;t+=4)e[t]=n.colors[t],e[t+1]=n.colors[t+1],e[t+2]=n.colors[t+2],e[t+3]=1;p.colors=e,f.hasVertexAlpha=!1}if(l&&c){const{matricesIndices:e,matricesWeights:t,matricesIndicesExtra:o,matricesWeightsExtra:r,numBoneInfluencers:s}=this._buildSkinningData(n,c,u);p.matricesIndices=e,p.matricesWeights=t,o&&r&&(p.matricesIndicesExtra=o,p.matricesWeightsExtra=r),f.numBoneInfluencers=s}return p.applyToMesh(f),f.metadata={...f.metadata??{},fbxGeometryId:n.id,fbxControlPointIndices:n.controlPointIndices,fbxGeometryDeltaMatrix:M?b:null,fbxGeometryNormalMatrix:I?v:null,fbxPreRotMatrix:M?b:null},l&&(f.skeleton=l),f}_applyMultiMaterial(e,t,n,r,s,i){const a=t.geometry.materialIndices,c=e.getIndices();if(!c)return;const u=c.length/3,f=new Map;for(let e=0;e<u;e++){const t=e<a.length?a[e]:0;let n=f.get(t);n||(n=[],f.set(t,n)),n.push(e)}const p=Array.from(f.keys()).sort((e,t)=>e-t),d=[],h=[];for(const e of p){const t=f.get(e),n=d.length;for(const e of t)d.push(c[3*e],c[3*e+1],c[3*e+2]);h.push({start:n,count:3*t.length,matIdx:e})}e.setIndices(d);const m=new o(t.name+"_multi",r);for(const e of h){const o=t.materials[e.matIdx];if(o){const e=n.get(o.id);e?m.subMaterials.push(Yt._getModelMaterial(e,t,i,s.has(o.id))):m.subMaterials.push(null)}else m.subMaterials.push(null)}e.material=m,e.subMeshes=[];const g=e.getTotalVertices();for(let t=0;t<h.length;t++){const n=h[t];new l(t,0,g,n.start,n.count,e)}}static _collectCullingConflictMaterialIds(e){const t=new Map,n=e=>{for(const n of e.materials){const o=t.get(n.id)??{cullingOff:!1,cullingOn:!1};e.cullingOff?o.cullingOff=!0:o.cullingOn=!0,t.set(n.id,o)}for(const t of e.children)n(t)};for(const t of e)n(t);const o=new Set;for(const[e,n]of Array.from(t))n.cullingOff&&n.cullingOn&&o.add(e);return o}static _getModelMaterial(e,t,n,o=!0){if(!t.cullingOff||!e.backFaceCulling)return e;if(!o)return e.backFaceCulling=!1,e;const r=n?.get(e);if(r)return r;const s=e.clone(`${e.name}_CullingOff`);return s.backFaceCulling=!1,n?.set(e,s),s}_applyMaterialUVSetCoordinates(e,t){if(e)if(e instanceof o)for(const n of e.subMaterials)n instanceof y&&this._applyStandardMaterialUVSetCoordinates(n,t);else e instanceof y&&this._applyStandardMaterialUVSetCoordinates(e,t)}_applyStandardMaterialUVSetCoordinates(e,t){for(const n of[e.diffuseTexture,e.bumpTexture,e.emissiveTexture,e.ambientTexture,e.specularTexture,e.opacityTexture,e.reflectionTexture]){if(!n)continue;const e=n.metadata?.fbxUVSetName;if(!e)continue;const o=t.uvSets.findIndex(t=>t.name===e);o>=0&&(n.coordinatesIndex=o)}}_useUnmodulatedVertexColorMaterials(e,t){const n=e.material;if(n)if(n instanceof y){if(!n.diffuseTexture){const t=n.clone(`${n.name}_VertexColor`);t.diffuseColor=new c(1,1,1),e.material=t}}else if(n instanceof o){const r=new o(`${n.name}_VertexColor`,t);r.subMaterials=n.subMaterials.map(e=>{if(e instanceof y&&!e.diffuseTexture){const t=e.clone(`${e.name}_VertexColor`);return t.diffuseColor=new c(1,1,1),t}return e}),e.material=r}}_buildSkinningData(e,t,n){const o=e.positions.length/3,r=new Float32Array(4*o),s=new Float32Array(4*o);let i=null,a=null,l=0;if(e.controlPointIndices){for(let n=0;n<o;n++){const o=e.controlPointIndices[n],r=t.boneIndices[o]??[];l=Math.max(l,Math.min(r.length,8))}l>4&&(i=new Float32Array(4*o),a=new Float32Array(4*o));for(let l=0;l<o;l++){const o=e.controlPointIndices[l],c=t.boneIndices[o]??[],u=t.boneWeights[o]??[];for(let e=0;e<8;e++){const t=e<4?r:i,o=e<4?s:a;if(!t||!o)continue;const f=4*l+e%4;if(e<c.length){const o=c[e],r=n?n.skinBoneIndexToRigBoneIndex[o]:o;if(void 0===r||r<0)throw new Error(`FBXFileLoader: missing rig bone mapping for skin bone index ${o}`);t[f]=r}else t[f]=0;o[f]=e<u.length?u[e]:0}}}return{matricesIndices:r,matricesWeights:s,matricesIndicesExtra:i,matricesWeightsExtra:a,numBoneInfluencers:Math.max(l,1)}}_createMaterial(e,t,n){const o=new y(e.name,t),r=e.properties,i=(...t)=>e.textures.some(e=>t.includes(e.propertyName));if("Lambert"===e.type&&(o.specularColor=c.Black()),r.diffuseColor){const e=i("DiffuseColor","Diffuse")?1:r.diffuseFactor??1;o.diffuseColor=new c(r.diffuseColor[0]*e,r.diffuseColor[1]*e,r.diffuseColor[2]*e)}if(r.ambientColor){const e=i("AmbientColor","Ambient")?1:r.ambientFactor??1;o.ambientColor=new c(r.ambientColor[0]*e,r.ambientColor[1]*e,r.ambientColor[2]*e)}if("Phong"===e.type&&r.specularColor){const e=i("SpecularColor","Specular","Shininess","ShininessExponent")?1:r.specularFactor??1;o.specularColor=new c(r.specularColor[0]*e,r.specularColor[1]*e,r.specularColor[2]*e)}if(r.emissiveColor){const e=i("EmissiveColor","Emissive")?1:r.emissiveFactor??1;o.emissiveColor=new c(r.emissiveColor[0]*e,r.emissiveColor[1]*e,r.emissiveColor[2]*e)}void 0!==r.opacity?o.alpha=r.opacity:void 0!==r.transparencyFactor&&(o.alpha=1-r.transparencyFactor),o.alpha<1&&(o.transparencyMode=s.MATERIAL_ALPHABLEND),void 0!==r.shininess&&(o.specularPower=r.shininess);for(const r of e.textures){if(!Yt._isSupportedMaterialTextureSlot(r.propertyName))continue;const e=Yt._createTexture(r,t,n,Yt._isNormalMapTextureSlot(r.propertyName));if(e){switch(r.propertyName){case"DiffuseColor":o.diffuseTexture=e,o.diffuseColor=new c(1,1,1);break;case"NormalMap":case"NormalMapTexture":case"normalCamera":case"Bump":case"BumpFactor":o.bumpTexture=e,this._configureNormalTexture(e,o);break;case"EmissiveColor":o.emissiveTexture=e;break;case"AmbientColor":o.ambientTexture=e;break;case"SpecularColor":o.specularTexture=e;break;case"TransparencyFactor":case"TransparentColor":o.opacityTexture=e,o.transparencyMode=s.MATERIAL_ALPHATESTANDBLEND;break;case"ReflectionColor":case"ReflectionFactor":o.reflectionTexture=e}r.uvTranslation&&(e.uOffset=r.uvTranslation[0],e.vOffset=r.uvTranslation[1]),r.uvScaling&&(e.uScale=r.uvScaling[0],e.vScale=r.uvScaling[1]),void 0!==r.uvRotation&&(e.wAng=r.uvRotation*(Math.PI/180)),void 0!==r.uvSetIndex&&(e.coordinatesIndex=r.uvSetIndex),r.uvSetName&&(e.metadata={...e.metadata??{},fbxUVSetName:r.uvSetName})}}return o}_configureNormalTexture(e,t){e.gammaSpace=!1,t.invertNormalMapX=!1,t.invertNormalMapY="y-down"===this._options.normalMapCoordinateSystem}_getNormalMapTangentHandednessScale(){return"y-down"===this._options.normalMapCoordinateSystem?-1:1}static _isSupportedMaterialTextureSlot(e){switch(e){case"DiffuseColor":case"NormalMap":case"NormalMapTexture":case"normalCamera":case"Bump":case"BumpFactor":case"EmissiveColor":case"AmbientColor":case"SpecularColor":case"TransparencyFactor":case"TransparentColor":case"ReflectionColor":case"ReflectionFactor":case"DisplacementColor":case"Displacement":case"DisplacementFactor":case"ShininessExponent":case"Shininess":return!0;default:return!1}}static _isNormalMapTextureSlot(e){switch(e){case"NormalMap":case"NormalMapTexture":case"normalCamera":case"Bump":case"BumpFactor":return!0;default:return!1}}static _createTexture(e,t,n,o){const r=Yt._getTextureSourceName(e),s=Yt._getTextureCreationOptions(r,o,e.embeddedData);if(e.embeddedData){const n=new u(null,t,s),o=r??`embeddedTexture_${e.id.toString()}`;return n.updateURL(`data:fbx-embedded-texture/${encodeURIComponent(o)}`,new Uint8Array(e.embeddedData),void 0,s.forcedExtension),n.name=o,n}const i=Yt._getExternalTextureUrls(e,n),a=i.shift();return a?Yt._createExternalTexture(a,i,t,s):null}static _createExternalTexture(e,t,n,o){t.push(...Yt._buildTextureFallbackUrls(e));let r=0;const s=new u(e,n,{...o,onError:()=>{const e=t[r++];e&&s.getScene()&&s.updateURL(e,null,void 0,Yt._getForcedExtension(e))}});return s}static _buildTextureFallbackUrls(e){const t=Math.max(e.lastIndexOf("/"),e.lastIndexOf("\\")),n=e.lastIndexOf(".");if(n<=t)return[];const o=e.slice(0,n),r=e.slice(n+1).toLowerCase();return["png","jpg","jpeg","webp","bmp","tga"].filter(e=>e!==r).map(e=>`${o}.${e}`)}static _getTextureCreationOptions(e,t,n){const o=n?e?Yt._getMimeType(e):"image/png":void 0;return{buffer:n?new Uint8Array(n):void 0,forcedExtension:e?Yt._getForcedExtension(e,o):n?".png":void 0,gammaSpace:!t,mimeType:o}}static _getExternalTextureUrls(e,t){const n=[e.relativeFileName,e.fileName].filter(e=>!!e),o=[];for(const e of n){const n=e.replace(/\\/g,"/");Yt._isSafeRelativeTexturePath(n)&&o.push(t+n);const r=Yt._getTextureSourceNameFromPath(n);r&&o.push(t+r)}return Array.from(new Set(o))}static _getTextureSourceName(e){const t=e.relativeFileName||e.fileName;if(!t)return null;const n=t.replace(/\\/g,"/");return Yt._getTextureSourceNameFromPath(n)}static _getTextureSourceNameFromPath(e){return e.split("/").pop()??e}static _isSafeRelativeTexturePath(e){return!(/^[a-zA-Z][a-zA-Z0-9+.-]*:/.test(e)||e.startsWith("/")||e.startsWith("//"))&&!e.split("/").some(e=>".."===e)}static _getForcedExtension(e,t){const n=Math.max(e.lastIndexOf("/"),e.lastIndexOf("\\")),o=e.lastIndexOf(".");if(o>n)return e.slice(o).toLowerCase();switch(t){case"image/png":return".png";case"image/jpeg":return".jpg";case"image/webp":return".webp";case"image/bmp":return".bmp";case"image/gif":return".gif";case"image/x-tga":return".tga";default:return}}static _getMimeType(e){const t=f(e);if(t)return t;switch(Yt._getForcedExtension(e)){case".tga":return"image/x-tga";case".bmp":return"image/bmp";case".gif":return"image/gif";default:return"image/png"}}_applyBlendShapes(e,t,n){for(const o of e){const e=t.find(e=>{const t=e.metadata?.fbxGeometryId;return t===o.geometryId});if(!e)continue;const r=new M(n);r.optimizeInfluencers=!1;const s=e.metadata?.fbxGeometryDeltaMatrix??e.metadata?.fbxPreRotMatrix??null,i=e.metadata?.fbxGeometryNormalMatrix??s;for(const t of o.channels){const o=e.metadata?.fbxControlPointIndices;if(!o)continue;const a=e.getVerticesData("position"),l=e.getVerticesData("normal");if(!a)continue;const c=qt(t.deformPercent,t.fullWeights,t.shapes.length),u=[];for(let e=0;e<t.shapes.length;e++){const f=t.shapes[e];if(!f)continue;const p=Qt(f,o,a,l,s,i);if(!p)continue;const d=t.fullWeights&&t.shapes.length>1?`${t.name}_${t.fullWeights[e]}`:t.name,h=new I(d,c[e]??0,n);h.setPositions(p.positions),p.normals&&h.setNormals(p.normals),u.push(r.numTargets),r.addTarget(h)}0!==u.length&&(e.metadata||(e.metadata={}),e.metadata.fbxBlendShapeChannelIds||(e.metadata.fbxBlendShapeChannelIds=new Map),e.metadata.fbxBlendShapeChannelIds.set(t.id,u[0]),e.metadata.fbxBlendShapeChannelTargets||(e.metadata.fbxBlendShapeChannelTargets=new Map),e.metadata.fbxBlendShapeChannelTargets.set(t.id,{targetIndices:u,fullWeights:t.fullWeights}))}r.numTargets>0&&(r.numMaxInfluencers=r.numTargets,e.morphTargetManager=r)}}_createCamera(t,n,o){const r=n.get(t.modelId),s=r?r.computeWorldMatrix(!0):e.Identity(),i=a.TransformCoordinates(a.Zero(),s),l=new w(t.name,i,o);if(l.fov=t.fieldOfView*(Math.PI/180),l.minZ=t.nearPlane,l.maxZ=t.farPlane,l.metadata={...l.metadata??{},fbxCamera:{projectionType:t.projectionType,focalLength:t.focalLength,filmWidth:t.filmWidth,filmHeight:t.filmHeight,orthoZoom:t.orthoZoom,roll:t.roll,aspectRatio:t.aspectRatio,unknownProperties:t.unknownProperties,diagnostics:t.diagnostics}},"orthographic"===t.projectionType){const e=t.orthoZoom&&t.orthoZoom>0?t.orthoZoom:1,n=t.aspectRatio>0?t.aspectRatio:1;l.mode=p.ORTHOGRAPHIC_CAMERA,l.orthoTop=e/2,l.orthoBottom=-e/2,l.orthoRight=e*n/2,l.orthoLeft=-e*n/2}const c=a.TransformCoordinates(new a(1,0,0),s);return l.setTarget(c),l}_createLight(t,n,o){const r=n.get(t.modelId),s=r?r.computeWorldMatrix(!0):e.Identity(),i=a.TransformCoordinates(a.Zero(),s),l=new c(t.color[0],t.color[1],t.color[2]),u=a.TransformCoordinates(new a(0,0,-1),s).subtract(i).normalize();let f;switch(t.lightType){case 1:f=new d(t.name,u,o),f.diffuse=l,f.intensity=t.intensity;break;case 2:{const e=t.coneAngle*(Math.PI/180);f=new T(t.name,i,u,e,2,o),f.diffuse=l,f.intensity=t.intensity;break}default:f=new A(t.name,i,o),f.diffuse=l,f.intensity=t.intensity}return f.metadata={...f.metadata??{},fbxLight:{lightType:t.lightType,decayType:t.decayType,decayStart:t.decayStart,innerAngle:t.innerAngle,outerAngle:t.outerAngle,enableNearAttenuation:t.enableNearAttenuation,enableFarAttenuation:t.enableFarAttenuation,castShadows:t.castShadows,unknownProperties:t.unknownProperties,diagnostics:t.diagnostics}},f}_createSkeleton(t,n,o){const r=new b("Skeleton",`skeleton_${t}`,o),s=[],i=new Map,a=[],l=[],c=[];for(let e=0;e<n.length;e++){const t=n[e],o=Yt._computeFBXLocalMatrix(t.translation,t.rotation,t.scale,t.preRotation,t.postRotation,t.rotationPivot,t.scalingPivot,t.rotationOffset,t.scalingOffset,t.rotationOrder);a[e]=o,c[e]=Yt._computeFBXRuntimeLocalMatrix(n,o,e)}l.push(...Yt._computeFBXAbsoluteMatrices(n,c));const u=n.map((t,n)=>t.transformLinkMatrix?e.FromArray(t.transformLinkMatrix):t.modelBindPoseMatrix?e.FromArray(t.modelBindPoseMatrix):l[n]),f=u.map((t,o)=>{const r=n[o].parentIndex;if(r<0)return t;const s=new e;return u[r].invertToRef(s),t.multiply(s)}),p=Yt._shouldUseBindMatricesAsRest(n,a,f);for(let t=0;t<n.length;t++){let o=p?f[t]:c[t],l=n[t].parentIndex>=0?s[n[t].parentIndex]:null;if(!p&&2===n[t].inheritType&&n[t].parentIndex>=0&&l){const s=Yt._splitParentScaleCompensatedLocalMatrix(a[t],n[n[t].parentIndex].scale),c=new v(`${n[t].name}__fbx_scaleCompensation`,r,l,s.helperLocalMatrix,s.helperLocalMatrix.clone(),e.Identity(),-1);c.metadata={...c.metadata??{},fbxScaleCompensationForBoneIndex:t,fbxScaleCompensationForBoneName:n[t].name},i.set(t,c),l=c,o=s.boneLocalMatrix}const u=new v(n[t].name,r,l,o,p?o.clone():null,p?o.clone():null,t);p&&n[t].isCluster&&Yt._getMaxScaleRatio(a[t],f[t])>=10&&this._bindRestBones.add(u),s.push(u)}if(this._sourceBonesBySkeleton.set(r,s),this._scaleCompensationHelpersBySkeleton.set(r,i),!p){for(let e=0;e<n.length;e++){s[e].updateMatrix(f[e],!1,!1)}for(const t of Array.from(i.values()))t.updateMatrix(e.Identity(),!1,!1);for(const e of r.bones)e.getParent()||e._updateAbsoluteBindMatrices(void 0,!0)}return r}_getSourceBone(e,t){return this._sourceBonesBySkeleton.get(e)?.[t]??e.bones[t]}_getScaleCompensationHelper(e,t){return this._scaleCompensationHelpersBySkeleton.get(e)?.get(t)}static _computeFBXAbsoluteMatrices(e,t){const n=[];for(let o=0;o<e.length;o++){const r=e[o].parentIndex;r<0?n[o]=t[o].clone():n[o]=t[o].multiply(n[r])}return n}static _computeFBXRuntimeLocalMatrix(e,t,n,o){const r=e[n].parentIndex;if(2!==e[n].inheritType||r<0)return t;const s=o??e[r].scale;return Yt._applyParentScaleCompensation(t,s)}static _applyParentScaleCompensation(e,t){const n=Yt._splitParentScaleCompensatedLocalMatrix(e,t);return n.boneLocalMatrix.multiply(n.helperLocalMatrix)}static _splitParentScaleCompensatedLocalMatrix(t,n){const o=t.getTranslation(),r=t.clone();r.setTranslation(a.Zero());return{boneLocalMatrix:r,helperLocalMatrix:e.Compose(Yt._getInverseScaleVector(n),h.Identity(),o)}}static _safeInverseScale(e){return Math.abs(e)>1e-8?1/e:1}static _getInverseScaleVector(e){return new a(Yt._safeInverseScale(e[0]),Yt._safeInverseScale(e[1]),Yt._safeInverseScale(e[2]))}static _shouldUseBindMatricesAsRest(e,t,n){return e.some((e,o)=>!!e.isCluster&&Yt._getMaxScaleRatio(t[o],n[o])>=10)}static _getMaxScaleRatio(e,t){const n=new a,o=new h,r=new a,s=new a,i=new h,l=new a;return e.decompose(n,o,r),t.decompose(s,i,l),Math.max(Yt._getScaleRatio(n.x,s.x),Yt._getScaleRatio(n.y,s.y),Yt._getScaleRatio(n.z,s.z))}static _getScaleRatio(e,t){const n=Math.abs(e),o=Math.abs(t);return n<1e-6||o<1e-6?n<1e-6&&o<1e-6?1:Number.POSITIVE_INFINITY:Math.max(n/o,o/n)}static _computeFBXGeometricMatrix(t,n,o){return function(t,n,o){const r=e.Translation(t[0],t[1],t[2]);return Wt(n,o).multiply(r)}(t,n,o)}static _computeFBXGeometricDeltaMatrix(e,t){return Wt(e,t)}static _computeFBXGeometricNormalMatrix(t,n){return function(t,n){const o=Math.PI/180,r=e.Scaling(0===n[0]?0:1/n[0],0===n[1]?0:1/n[1],0===n[2]?0:1/n[2]),s=jt(t[0]*o,t[1]*o,t[2]*o);return r.multiply(s)}(t,n)}static _computeFBXLocalMatrix(t,n,o,r,s,i,a,l,c,u=0){return function(t){const{translation:n,rotation:o,scale:r,preRotation:s,postRotation:i,rotationPivot:a,scalingPivot:l,rotationOffset:c,scalingOffset:u,rotationOrder:f}=t,p=Math.PI/180,d=0!==a[0]||0!==a[1]||0!==a[2]||0!==l[0]||0!==l[1]||0!==l[2],h=0!==c[0]||0!==c[1]||0!==c[2]||0!==u[0]||0!==u[1]||0!==u[2],m=0!==i[0]||0!==i[1]||0!==i[2];if(!d&&!h&&!m){const t=jt(s[0]*p,s[1]*p,s[2]*p),i=Ut(o[0]*p,o[1]*p,o[2]*p,f),a=e.Translation(n[0],n[1],n[2]),l=i.multiply(t);return e.Scaling(r[0],r[1],r[2]).multiply(l).multiply(a)}const g=e.Translation(n[0],n[1],n[2]),y=e.Translation(c[0],c[1],c[2]),b=e.Translation(a[0],a[1],a[2]),v=e.Translation(-a[0],-a[1],-a[2]),x=e.Translation(u[0],u[1],u[2]),M=e.Translation(l[0],l[1],l[2]),I=e.Translation(-l[0],-l[1],-l[2]),w=jt(s[0]*p,s[1]*p,s[2]*p),A=Ut(o[0]*p,o[1]*p,o[2]*p,f),T=e.Scaling(r[0],r[1],r[2]);let S;if(m){const t=jt(i[0]*p,i[1]*p,i[2]*p);S=new e,t.invertToRef(S)}else S=e.Identity();let C=I;return C=C.multiply(T),C=C.multiply(M),C=C.multiply(x),C=C.multiply(v),C=C.multiply(S),C=C.multiply(A),C=C.multiply(w),C=C.multiply(b),C=C.multiply(y),C=C.multiply(g),C}({translation:t,rotation:n,scale:o,preRotation:r,postRotation:s,rotationPivot:i,scalingPivot:a,rotationOffset:l,scalingOffset:c,rotationOrder:u})}static _applyFBXTransform(e,t){const n=Yt._computeFBXModelLocalMatrix(t),o=new a,r=new h,s=new a;n.decompose(o,r,s),e.position=s,e.rotationQuaternion=r,e.scaling=o}static _computeFBXModelLocalMatrix(e){return Yt._computeFBXLocalMatrix(e.translation,e.rotation,e.scale,e.preRotation,e.postRotation,e.rotationPivot,e.scalingPivot,e.rotationOffset,e.scalingOffset,e.rotationOrder)}static _getBoneReferenceWorldMatrix(e,t,n,o){return o?e.getTransformMatrices(o):e.prepare(!0),n.computeWorldMatrix(!0),t.getFinalMatrix().multiply(n.getWorldMatrix())}static _applyMatrixToTransform(e,t){const n=new a,o=new h,r=new a;t.decompose(n,o,r),e.position=r,e.rotationQuaternion=o,e.scaling=n}_createAnimationGroup(e,t,n,o,r,s,i){if(0===e.curveNodes.length)return null;const a=new x(e.name,o),l=new Map,c=(e,t)=>{const n=t.getTransformNode()??t;let o=l.get(n);if(o){if(o.has(e.targetProperty))return}else o=new Set,l.set(n,o);o.add(e.targetProperty),a.addTargetedAnimation(e,n)},u=new Map;for(const e of t){const t=n.get(e.id);if(t)for(const n of e.bones){const e=this._getSourceBone(t,n.index);if(!e)continue;const o=u.get(n.modelId);o?o.push(e):u.set(n.modelId,[e])}}const f=new Map,p=new Map,d=[];for(const t of e.curveNodes)"DeformPercent"!==t.type?u.has(t.targetModelId)?(f.has(t.targetModelId)||f.set(t.targetModelId,[]),f.get(t.targetModelId).push(t)):(p.has(t.targetModelId)||p.set(t.targetModelId,[]),p.get(t.targetModelId).push(t)):d.push(t);const h=new Set;for(const o of t){const t=new Set(o.bones.filter(e=>2===e.inheritType).map(e=>e.modelId));if(0===t.size)continue;const r=n.get(o.id);if(r&&!r.bones.some(e=>this._bindRestBones.has(e))){for(const e of Array.from(t))h.add(e);for(const{bone:n,animations:i}of this._buildInheritedRigBoneAnimations(o,r,f,s,t,e.startTime,e.stopTime))for(const e of i)c(e,n)}}for(const[t,n]of Array.from(f)){if(h.has(t))continue;const o=u.get(t),r=s.get(t);if(o&&0!==o.length&&r)for(const t of o){const o=this._buildBoneAnimations(n,t.name,r,e.startTime,e.stopTime,this._bindRestBones.has(t)?t.getBindMatrix():void 0);for(const e of o)c(e,t)}}for(const[t,n]of Array.from(p)){const o=r.get(t);if(!o)continue;const i=s.get(t);if(!i)continue;const l=this._buildNodeAnimations(n,o.name,i,e.startTime,e.stopTime);for(const e of l)a.addTargetedAnimation(e,o)}for(const t of d){const n=t.targetModelId;let o=!1;for(const r of i){if(!r.morphTargetManager||o)continue;const s=r.metadata,i=s?.fbxBlendShapeChannelTargets,l=i?.get(n);if(l&&t.curves.length>0){const n=30;for(let o=0;o<l.targetIndices.length;o++){const s=r.morphTargetManager.getTarget(l.targetIndices[o]);if(!s)continue;const i=new m(`${s.name}_influence`,"influence",n,m.ANIMATIONTYPE_FLOAT,m.ANIMATIONLOOPMODE_CYCLE),c=nn(t.curves[0],n,e.startTime,e.stopTime,e=>qt(e,l.fullWeights,l.targetIndices.length)[o]??0);i.setKeys(c),a.addTargetedAnimation(i,s)}o=!0;continue}const c=s?.fbxBlendShapeChannelIds;if(!c)continue;const u=c.get(n);if(void 0===u)continue;const f=r.morphTargetManager.getTarget(u);if(f&&t.curves.length>0){const n=30,r=new m(`${f.name}_influence`,"influence",n,m.ANIMATIONTYPE_FLOAT,m.ANIMATIONLOOPMODE_CYCLE),s=nn(t.curves[0],n,e.startTime,e.stopTime,e=>e/100);r.setKeys(s),a.addTargetedAnimation(r,f),o=!0}}}return a.targetedAnimations.length>0?(a.normalize(30*e.startTime,30*e.stopTime),a):(a.dispose(),null)}_buildInheritedRigBoneAnimations(t,n,o,r,s,i,a){const l=30,c=new Set;for(let e=0;e<t.bones.length;e++)if(s.has(t.bones[e].modelId))for(let n=e;n>=0;n=t.bones[n].parentIndex)c.add(t.bones[n].modelId);const u=en(t.bones.filter(e=>c.has(e.modelId)).flatMap(e=>o.get(e.modelId)??[]),l,i,a);if(0===u.length)return[];const f=t.bones.map(()=>({posKeys:[],rotKeys:[],sclKeys:[],prevQuat:null})),p=t.bones.map(()=>({posKeys:[],rotKeys:[],sclKeys:[],prevQuat:null})),d=t.bones.map((t,o)=>{const s=this._getSourceBone(n,o),i=r.get(t.modelId);if(!s||!i||!this._bindRestBones.has(s))return null;const a=Yt._computeFBXModelLocalMatrix(i),l=new e;return a.invertToRef(l),l});for(const i of u){const a=t.bones.map((t,s)=>{const a=r.get(t.modelId),l=o.get(t.modelId)??[];let c=a?this._sampleModelLocalMatrix(a,l,i):e.Identity();const u=d[s];if(u){const t=this._getSourceBone(n,s);c=(t?.getBindMatrix()??e.Identity()).multiply(u).multiply(c)}return c}),c=t.bones.map(e=>{const t=r.get(e.modelId),n=o.get(e.modelId)??[];return t?this._sampleModelScale(t,n,i):e.scale}),u=i*l;for(let e=0;e<a.length;e++){if(!s.has(t.bones[e].modelId))continue;const n=t.bones[e].parentIndex,o=n>=0?c[n]:t.bones[e].scale,r=Yt._splitParentScaleCompensatedLocalMatrix(a[e],o);Yt._pushMatrixKeys(f[e],u,r.boneLocalMatrix),Yt._pushMatrixKeys(p[e],u,r.helperLocalMatrix)}}const h=[];for(let e=0;e<t.bones.length;e++){if(!s.has(t.bones[e].modelId))continue;const o=this._getSourceBone(n,e);if(!o)continue;const{posKeys:r,rotKeys:i,sclKeys:a}=f[e],c=[];if(!this._isVector3KeysConstant(r)){const e=new m(`${o.name}_position`,"position",l,m.ANIMATIONTYPE_VECTOR3,m.ANIMATIONLOOPMODE_CYCLE);e.setKeys(r),c.push(e)}if(!tn(i)){const e=new m(`${o.name}_rotation`,"rotationQuaternion",l,m.ANIMATIONTYPE_QUATERNION,m.ANIMATIONLOOPMODE_CYCLE);e.setKeys(i),c.push(e)}if(!this._isVector3KeysConstant(a)){const e=new m(`${o.name}_scaling`,"scaling",l,m.ANIMATIONTYPE_VECTOR3,m.ANIMATIONLOOPMODE_CYCLE);e.setKeys(a),c.push(e)}c.length>0&&h.push({bone:o,animations:c});const u=this._getScaleCompensationHelper(n,e);if(!u)continue;const d=[],{posKeys:g,rotKeys:y,sclKeys:b}=p[e];if(!this._isVector3KeysConstant(g)){const e=new m(`${u.name}_position`,"position",l,m.ANIMATIONTYPE_VECTOR3,m.ANIMATIONLOOPMODE_CYCLE);e.setKeys(g),d.push(e)}if(!tn(y)){const e=new m(`${u.name}_rotation`,"rotationQuaternion",l,m.ANIMATIONTYPE_QUATERNION,m.ANIMATIONLOOPMODE_CYCLE);e.setKeys(y),d.push(e)}if(!this._isVector3KeysConstant(b)){const e=new m(`${u.name}_scaling`,"scaling",l,m.ANIMATIONTYPE_VECTOR3,m.ANIMATIONLOOPMODE_CYCLE);e.setKeys(b),d.push(e)}d.length>0&&h.push({bone:u,animations:d})}return h}static _pushMatrixKeys(e,t,n){const o=new a,r=new h,s=new a;n.decompose(o,r,s),e.prevQuat&&h.Dot(e.prevQuat,r)<0&&r.scaleInPlace(-1),e.prevQuat=r,e.posKeys.push({frame:t,value:s}),e.rotKeys.push({frame:t,value:r}),e.sclKeys.push({frame:t,value:o})}_buildNodeAnimations(e,t,n,o,r){const s=e.find(e=>"T"===e.type),i=e.find(e=>"R"===e.type),l=e.find(e=>"S"===e.type),c=en(e,30,o,r);if(0===c.length)return[];const u=s?.curves.find(e=>"d|X"===e.channel),f=s?.curves.find(e=>"d|Y"===e.channel),p=s?.curves.find(e=>"d|Z"===e.channel),d=i?.curves.find(e=>"d|X"===e.channel),g=i?.curves.find(e=>"d|Y"===e.channel),y=i?.curves.find(e=>"d|Z"===e.channel),b=l?.curves.find(e=>"d|X"===e.channel),v=l?.curves.find(e=>"d|Y"===e.channel),x=l?.curves.find(e=>"d|Z"===e.channel),M=[],I=[],w=[];let A=null;for(const e of c){const t=30*e,o=mt(u,e)??n.translation[0],r=mt(f,e)??n.translation[1],s=mt(p,e)??n.translation[2],i=mt(d,e)??n.rotation[0],l=mt(g,e)??n.rotation[1],c=mt(y,e)??n.rotation[2],m=mt(b,e)??n.scale[0],T=mt(v,e)??n.scale[1],S=mt(x,e)??n.scale[2],C=Yt._computeFBXLocalMatrix([o,r,s],[i,l,c],[m,T,S],n.preRotation,n.postRotation,n.rotationPivot,n.scalingPivot,n.rotationOffset,n.scalingOffset,n.rotationOrder),_=new a,O=new h,N=new a;C.decompose(_,O,N),A&&h.Dot(A,O)<0&&O.scaleInPlace(-1),A=O,M.push({frame:t,value:N}),I.push({frame:t,value:O}),w.push({frame:t,value:_})}const T=[];if(!this._isVector3KeysConstant(M)){const e=new m(`${t}_position`,"position",30,m.ANIMATIONTYPE_VECTOR3,m.ANIMATIONLOOPMODE_CYCLE);e.setKeys(M),T.push(e)}if(i){const e=new m(`${t}_rotation`,"rotationQuaternion",30,m.ANIMATIONTYPE_QUATERNION,m.ANIMATIONLOOPMODE_CYCLE);e.setKeys(I),T.push(e)}if(!this._isVector3KeysConstant(w)){const e=new m(`${t}_scaling`,"scaling",30,m.ANIMATIONTYPE_VECTOR3,m.ANIMATIONLOOPMODE_CYCLE);e.setKeys(w),T.push(e)}return T}_isVector3KeysConstant(e){if(e.length<2)return!0;const t=e[0].value;for(let n=1;n<e.length;n++){const o=e[n].value;if(Math.abs(o.x-t.x)>1e-4||Math.abs(o.y-t.y)>1e-4||Math.abs(o.z-t.z)>1e-4)return!1}return!0}_sampleModelLocalMatrix(e,t,n,o){const r=t.find(e=>"T"===e.type),s=t.find(e=>"R"===e.type),i=t.find(e=>"S"===e.type),a=r?.curves.find(e=>"d|X"===e.channel),l=r?.curves.find(e=>"d|Y"===e.channel),c=r?.curves.find(e=>"d|Z"===e.channel),u=s?.curves.find(e=>"d|X"===e.channel),f=s?.curves.find(e=>"d|Y"===e.channel),p=s?.curves.find(e=>"d|Z"===e.channel),d=i?.curves.find(e=>"d|X"===e.channel),h=i?.curves.find(e=>"d|Y"===e.channel),m=i?.curves.find(e=>"d|Z"===e.channel);return Yt._computeFBXLocalMatrix([mt(a,n)??e.translation[0],mt(l,n)??e.translation[1],mt(c,n)??e.translation[2]],[mt(u,n)??e.rotation[0],mt(f,n)??e.rotation[1],mt(p,n)??e.rotation[2]],o??[mt(d,n)??e.scale[0],mt(h,n)??e.scale[1],mt(m,n)??e.scale[2]],e.preRotation,e.postRotation,e.rotationPivot,e.scalingPivot,e.rotationOffset,e.scalingOffset,e.rotationOrder)}_sampleModelScale(e,t,n){const o=t.find(e=>"S"===e.type),r=o?.curves.find(e=>"d|X"===e.channel),s=o?.curves.find(e=>"d|Y"===e.channel),i=o?.curves.find(e=>"d|Z"===e.channel);return[mt(r,n)??e.scale[0],mt(s,n)??e.scale[1],mt(i,n)??e.scale[2]]}_buildBoneAnimations(t,n,o,r,s,i){const l=t.find(e=>"T"===e.type),c=t.find(e=>"R"===e.type),u=t.find(e=>"S"===e.type),f=en(t,30,r,s);if(0===f.length)return[];const p=l?.curves.find(e=>"d|X"===e.channel),d=l?.curves.find(e=>"d|Y"===e.channel),g=l?.curves.find(e=>"d|Z"===e.channel),y=c?.curves.find(e=>"d|X"===e.channel),b=c?.curves.find(e=>"d|Y"===e.channel),v=c?.curves.find(e=>"d|Z"===e.channel),x=u?.curves.find(e=>"d|X"===e.channel),M=u?.curves.find(e=>"d|Y"===e.channel),I=u?.curves.find(e=>"d|Z"===e.channel),w=[],A=[],T=[];let S=null,C=null;if(i){const t=Yt._computeFBXLocalMatrix(o.translation,o.rotation,o.scale,o.preRotation,o.postRotation,o.rotationPivot,o.scalingPivot,o.rotationOffset,o.scalingOffset,o.rotationOrder);C=new e,t.invertToRef(C)}for(const e of f){const t=30*e,n=mt(p,e)??o.translation[0],r=mt(d,e)??o.translation[1],s=mt(g,e)??o.translation[2],l=mt(y,e)??o.rotation[0],c=mt(b,e)??o.rotation[1],u=mt(v,e)??o.rotation[2],f=mt(x,e)??o.scale[0],m=mt(M,e)??o.scale[1],_=mt(I,e)??o.scale[2],O=Yt._computeFBXLocalMatrix([n,r,s],[l,c,u],[f,m,_],o.preRotation,o.postRotation,o.rotationPivot,o.scalingPivot,o.rotationOffset,o.scalingOffset,o.rotationOrder),N=C&&i?i.multiply(C).multiply(O):O,F=new a,B=new h,P=new a;N.decompose(F,B,P),S&&h.Dot(S,B)<0&&B.scaleInPlace(-1),S=B,w.push({frame:t,value:P}),A.push({frame:t,value:B}),T.push({frame:t,value:F})}const _=[];if(!this._isVector3KeysConstant(w)){const e=new m(`${n}_position`,"position",30,m.ANIMATIONTYPE_VECTOR3,m.ANIMATIONLOOPMODE_CYCLE);e.setKeys(w),_.push(e)}if(c){const e=new m(`${n}_rotation`,"rotationQuaternion",30,m.ANIMATIONTYPE_QUATERNION,m.ANIMATIONLOOPMODE_CYCLE);e.setKeys(A),_.push(e)}if(!this._isVector3KeysConstant(T)){const e=new m(`${n}_scaling`,"scaling",30,m.ANIMATIONTYPE_VECTOR3,m.ANIMATIONLOOPMODE_CYCLE);e.setKeys(T),_.push(e)}return _}_buildNameFilter(e){if(!e)return null;if("string"==typeof e)return""===e?null:t=>t===e;if(0===e.length)return null;const t=new Set(e);return e=>t.has(e)}}function Kt(e){const t=new Float32Array(e.length);for(let n=0;n<e.length;n++)t[n]=e[n];return t}function zt(e,t,n,o,r,s,i,a,l,c,u,f,p,d,h,m){const g=function(e,t,n,o){const r=3*t,s=3*n,i=3*o,a=e[s]-e[r],l=e[s+1]-e[r+1],c=e[s+2]-e[r+2],u=e[i]-e[r],f=e[i+1]-e[r+1],p=e[i+2]-e[r+2],d=Math.hypot(a,l,c),h=Math.hypot(u,f,p);if(d<=1e-8||h<=1e-8)return 0;const m=(a*u+l*f+c*p)/(d*h);return Math.acos(Math.max(-1,Math.min(1,m)))}(c,e,t,n);if(g<=1e-8)return;const y=function(e,t,n,o,r,s,i,a,l,c,u,f){const p=3*e,d=3*e,h=2*e,[m,g,y]=Gt(l[d],l[d+1],l[d+2]),b=function(e,t,n,o,r,s,i,a,l){const c=t*s-n*r,u=n*o-e*s,f=e*r-t*o;return 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f=e.vertices[3*i],p=e.vertices[3*i+1],d=e.vertices[3*i+2];if(r){const e=a.TransformNormal(new a(f,p,d),r);f=e.x,p=e.y,d=e.z}if(l[3*n]+=f,l[3*n+1]+=p,l[3*n+2]+=d,c&&e.normals){let t=e.normals[3*i],o=e.normals[3*i+1],r=e.normals[3*i+2];if(s){const e=a.TransformNormal(new a(t,o,r),s);e.lengthSquared()>0&&e.normalize(),t=e.x,o=e.y,r=e.z}c[3*n]+=t,c[3*n+1]+=o,c[3*n+2]+=r}}return{positions:l,normals:c}}function qt(e,t,n){if(n<=0)return[];if(!t||t.length!==n||1===n){return[Jt(e/(t?.[0]&&0!==t[0]?t[0]:100))]}const o=new Array(n).fill(0);if(e<=t[0])return o[0]=0===t[0]?e<=0?1:0:Jt(e/t[0]),o;for(let n=1;n<t.length;n++){const r=t[n-1],s=t[n];if(e>s)continue;const i=s-r;if(Math.abs(i)<1e-6)return o[n]=1,o;const a=Jt((e-r)/i);return o[n-1]=1-a,o[n]=a,o}return o[n-1]=1,o}function Jt(e){return Math.max(0,Math.min(1,e))}function en(e,t,n,o){let r=Number.POSITIVE_INFINITY,s=Number.NEGATIVE_INFINITY;const i=new Set;for(const t of e)for(const e of t.curves)for(const t of e.keys)r=Math.min(r,t.time),s=Math.max(s,t.time),t.time>=n&&t.time<=o&&i.add(t.time);if(!Number.isFinite(r)||!Number.isFinite(s))return[];const a=o>n?n:r,l=o>n?o:s,c=new Set([a,l,...Array.from(i)]),u=Math.ceil(a*t),f=Math.floor(l*t);for(let e=u;e<=f;e++)c.add(e/t);return Array.from(c).sort((e,t)=>e-t)}function tn(e){if(e.length<2)return!0;const t=e[0].value;for(let n=1;n<e.length;n++){const o=e[n].value;if(Math.abs(o.x-t.x)>1e-4||Math.abs(o.y-t.y)>1e-4||Math.abs(o.z-t.z)>1e-4||Math.abs(o.w-t.w)>1e-4)return!1}return!0}function nn(e,t,n,o,r){const s=function(e,t,n){if(n>t)return{start:t,stop:n};return{start:e.keys[0]?.time??0,stop:e.keys[e.keys.length-1]?.time??0}}(e,n,o),i=e.keys.filter(e=>e.time>=s.start&&e.time<=s.stop).map(e=>({source:e,frame:e.time*t,value:r(e.value)}));i.some(e=>Math.abs(e.source.time-s.start)<1e-6)||i.unshift({source:{time:s.start,value:mt(e,s.start)??0,interpolation:"linear"},frame:s.start*t,value:r(mt(e,s.start)??0)}),i.some(e=>Math.abs(e.source.time-s.stop)<1e-6)||i.push({source:{time:s.stop,value:mt(e,s.stop)??0,interpolation:"linear"},frame:s.stop*t,value:r(mt(e,s.stop)??0)});const a=i.map(e=>({frame:e.frame,value:e.value}));for(let e=0;e<i.length-1;e++){const n=i[e].source,o=a[e+1];if("constant"===n.interpolation){a[e].interpolation=1;continue}if("cubic"!==n.interpolation)continue;const s=i[e+1].source,l=Math.max(s.time-n.time,1e-6),c=(s.value-n.value)/l;a[e].outTangent=on(n.rightSlope??c,r)/t,o.inTangent=on(n.nextLeftSlope??c,r)/t}return a}function on(e,t){return t(e)-t(0)}let rn=!1;function sn(){rn||(rn=!0,g(new Yt))}sn();export{Yt as FBXFileLoader,sn as RegisterFBXFileLoader};
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