babylonjs.loaders.min.js

!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t(require("babylonjs")):"function"==typeof define&&define.amd?define("babylonjs-loaders",["babylonjs"],t):"object"==typeof exports?exports["babylonjs-loaders"]=t(require("babylonjs")):e.LOADERS=t(e.BABYLON)}("undefined"!=typeof self?self:"undefined"!=typeof global?global:this,(e=>(()=>{"use strict";var t={520:t=>{t.exports=e}},n={};function r(e){var o=n[e];if(void 0!==o)return o.exports;var a=n[e]={exports:{}};return t[e](a,a.exports,r),a.exports}r.d=(e,t)=>{for(var n in t)r.o(t,n)&&!r.o(e,n)&&Object.defineProperty(e,n,{enumerable:!0,get:t[n]})},r.g=function(){if("object"==typeof globalThis)return globalThis;try{return this||new Function("return this")()}catch(e){if("object"==typeof window)return window}}(),r.o=(e,t)=>Object.prototype.hasOwnProperty.call(e,t),r.r=e=>{"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})};var o={};return(()=>{r.d(o,{default:()=>Ht});var e={};r.r(e),r.d(e,{GLTFValidation:()=>y});var t={};r.r(t),r.d(t,{GLTFFileLoader:()=>v,GLTFLoaderAnimationStartMode:()=>_,GLTFLoaderCoordinateSystemMode:()=>p,GLTFLoaderState:()=>m});var n={};r.r(n),r.d(n,{EBlendingFunction:()=>w,EComponentType:()=>T,ECullingType:()=>C,EParameterType:()=>E,EShaderType:()=>x,ETextureFilterType:()=>M,ETextureFormat:()=>L,ETextureWrapMode:()=>O,GLTFBinaryExtension:()=>ne,GLTFLoader:()=>ee,GLTFLoaderBase:()=>$,GLTFLoaderExtension:()=>te,GLTFMaterialsCommonExtension:()=>re,GLTFUtils:()=>R});var a={};r.r(a);var i={};r.r(i),r.d(i,{EXT_lights_image_based:()=>fe,EXT_mesh_gpu_instancing:()=>_e,EXT_meshopt_compression:()=>ye,EXT_texture_webp:()=>ve,ExtrasAsMetadata:()=>Mt,KHR_animation_pointer:()=>mt,KHR_draco_mesh_compression:()=>Ae,KHR_lights:()=>xe,KHR_materials_clearcoat:()=>we,KHR_materials_emissive_strength:()=>Pe,KHR_materials_ior:()=>ke,KHR_materials_iridescence:()=>Ne,KHR_materials_pbrSpecularGlossiness:()=>Oe,KHR_materials_sheen:()=>Fe,KHR_materials_specular:()=>Ve,KHR_materials_translucency:()=>Ye,KHR_materials_transmission:()=>Ke,KHR_materials_unlit:()=>Le,KHR_materials_variants:()=>Ue,KHR_materials_volume:()=>Xe,KHR_mesh_quantization:()=>Ze,KHR_texture_basisu:()=>Je,KHR_texture_transform:()=>et,KHR_xmp_json_ld:()=>nt,MSFT_audio_emitter:()=>gt,MSFT_lod:()=>bt,MSFT_minecraftMesh:()=>Tt,MSFT_sRGBFactors:()=>Et});var s={};r.r(s),r.d(s,{ArrayItem:()=>ue,EXT_lights_image_based:()=>fe,EXT_mesh_gpu_instancing:()=>_e,EXT_meshopt_compression:()=>ye,EXT_texture_webp:()=>ve,ExtrasAsMetadata:()=>Mt,GLTFLoader:()=>de,KHR_animation_pointer:()=>mt,KHR_draco_mesh_compression:()=>Ae,KHR_lights:()=>xe,KHR_materials_clearcoat:()=>we,KHR_materials_emissive_strength:()=>Pe,KHR_materials_ior:()=>ke,KHR_materials_iridescence:()=>Ne,KHR_materials_pbrSpecularGlossiness:()=>Oe,KHR_materials_sheen:()=>Fe,KHR_materials_specular:()=>Ve,KHR_materials_translucency:()=>Ye,KHR_materials_transmission:()=>Ke,KHR_materials_unlit:()=>Le,KHR_materials_variants:()=>Ue,KHR_materials_volume:()=>Xe,KHR_mesh_quantization:()=>Ze,KHR_texture_basisu:()=>Je,KHR_texture_transform:()=>et,KHR_xmp_json_ld:()=>nt,MSFT_audio_emitter:()=>gt,MSFT_lod:()=>bt,MSFT_minecraftMesh:()=>Tt,MSFT_sRGBFactors:()=>Et});var l={};r.r(l),r.d(l,{MTLFileLoader:()=>Lt,OBJFileLoader:()=>wt,SolidParser:()=>Ct});var c={};r.r(c),r.d(c,{STLFileLoader:()=>St});var u={};r.r(u),r.d(u,{GLTF1:()=>n,GLTF2:()=>s,GLTFFileLoader:()=>v,GLTFLoaderAnimationStartMode:()=>_,GLTFLoaderCoordinateSystemMode:()=>p,GLTFLoaderState:()=>m,GLTFValidation:()=>y,MTLFileLoader:()=>Lt,OBJFileLoader:()=>wt,STLFileLoader:()=>St,SolidParser:()=>Ct});var d=r(520);function h(e,t,n,r){var o={externalResourceFunction:function(e){return r(e).then((function(e){return new Uint8Array(e)}))}};return n&&(o.uri="file:"===t?n:t+n),e instanceof ArrayBuffer?GLTFValidator.validateBytes(new Uint8Array(e),o):GLTFValidator.validateString(e,o)}function f(){var e=[];onmessage=function(t){var n=t.data;switch(n.id){case"init":importScripts(n.url);break;case"validate":h(n.data,n.rootUrl,n.fileName,(function(t){return new Promise((function(n,r){var o=e.length;e.push({resolve:n,reject:r}),postMessage({id:"getExternalResource",index:o,uri:t})}))})).then((function(e){postMessage({id:"validate.resolve",value:e})}),(function(e){postMessage({id:"validate.reject",reason:e})}));break;case"getExternalResource.resolve":e[n.index].resolve(n.value);break;case"getExternalResource.reject":e[n.index].reject(n.reason)}}}var p,_,m,y=function(){function e(){}return e.ValidateAsync=function(e,t,n,r){var o=this;return"function"==typeof Worker?new Promise((function(a,i){var s="".concat(h,"(").concat(f,")()"),l=URL.createObjectURL(new Blob([s],{type:"application/javascript"})),c=new Worker(l),u=function(e){c.removeEventListener("error",u),c.removeEventListener("message",d),i(e)},d=function(e){var t=e.data;switch(t.id){case"getExternalResource":r(t.uri).then((function(e){c.postMessage({id:"getExternalResource.resolve",index:t.index,value:e},[e])}),(function(e){c.postMessage({id:"getExternalResource.reject",index:t.index,reason:e})}));break;case"validate.resolve":c.removeEventListener("error",u),c.removeEventListener("message",d),a(t.value),c.terminate();break;case"validate.reject":c.removeEventListener("error",u),c.removeEventListener("message",d),i(t.reason),c.terminate()}};c.addEventListener("error",u),c.addEventListener("message",d),c.postMessage({id:"init",url:o.Configuration.url}),c.postMessage({id:"validate",data:e,rootUrl:t,fileName:n})})):(this._LoadScriptPromise||(this._LoadScriptPromise=d.Tools.LoadScriptAsync(this.Configuration.url)),this._LoadScriptPromise.then((function(){return h(e,t,n,r)})))},e.Configuration={url:"https://preview.babylonjs.com/gltf_validator.js"},e}();function g(e,t,n){try{return Promise.resolve(new Uint8Array(e,t,n))}catch(e){return Promise.reject(e)}}!function(e){e[e.AUTO=0]="AUTO",e[e.FORCE_RIGHT_HANDED=1]="FORCE_RIGHT_HANDED"}(p||(p={})),function(e){e[e.NONE=0]="NONE",e[e.FIRST=1]="FIRST",e[e.ALL=2]="ALL"}(_||(_={})),function(e){e[e.LOADING=0]="LOADING",e[e.READY=1]="READY",e[e.COMPLETE=2]="COMPLETE"}(m||(m={}));var v=function(){function e(){this.onParsedObservable=new d.Observable,this.coordinateSystemMode=p.AUTO,this.animationStartMode=_.FIRST,this.compileMaterials=!1,this.useClipPlane=!1,this.compileShadowGenerators=!1,this.transparencyAsCoverage=!1,this.useRangeRequests=!1,this.createInstances=!0,this.alwaysComputeBoundingBox=!1,this.loadAllMaterials=!1,this.loadOnlyMaterials=!1,this.skipMaterials=!1,this.useSRGBBuffers=!0,this.targetFps=60,this.alwaysComputeSkeletonRootNode=!1,this.preprocessUrlAsync=function(e){return Promise.resolve(e)},this.onMeshLoadedObservable=new d.Observable,this.onSkinLoadedObservable=new d.Observable,this.onTextureLoadedObservable=new d.Observable,this.onMaterialLoadedObservable=new d.Observable,this.onCameraLoadedObservable=new d.Observable,this.onCompleteObservable=new d.Observable,this.onErrorObservable=new d.Observable,this.onDisposeObservable=new d.Observable,this.onExtensionLoadedObservable=new d.Observable,this.validate=!1,this.onValidatedObservable=new d.Observable,this._loader=null,this._state=null,this._requests=new Array,this.name="gltf",this.extensions={".gltf":{isBinary:!1},".glb":{isBinary:!0}},this.onLoaderStateChangedObservable=new d.Observable,this._logIndentLevel=0,this._loggingEnabled=!1,this._log=this._logDisabled,this._capturePerformanceCounters=!1,this._startPerformanceCounter=this._startPerformanceCounterDisabled,this._endPerformanceCounter=this._endPerformanceCounterDisabled}return Object.defineProperty(e.prototype,"onParsed",{set:function(e){this._onParsedObserver&&this.onParsedObservable.remove(this._onParsedObserver),this._onParsedObserver=this.onParsedObservable.add(e)},enumerable:!1,configurable:!0}),Object.defineProperty(e.prototype,"onMeshLoaded",{set:function(e){this._onMeshLoadedObserver&&this.onMeshLoadedObservable.remove(this._onMeshLoadedObserver),this._onMeshLoadedObserver=this.onMeshLoadedObservable.add(e)},enumerable:!1,configurable:!0}),Object.defineProperty(e.prototype,"onTextureLoaded",{set:function(e){this._onTextureLoadedObserver&&this.onTextureLoadedObservable.remove(this._onTextureLoadedObserver),this._onTextureLoadedObserver=this.onTextureLoadedObservable.add(e)},enumerable:!1,configurable:!0}),Object.defineProperty(e.prototype,"onMaterialLoaded",{set:function(e){this._onMaterialLoadedObserver&&this.onMaterialLoadedObservable.remove(this._onMaterialLoadedObserver),this._onMaterialLoadedObserver=this.onMaterialLoadedObservable.add(e)},enumerable:!1,configurable:!0}),Object.defineProperty(e.prototype,"onCameraLoaded",{set:function(e){this._onCameraLoadedObserver&&this.onCameraLoadedObservable.remove(this._onCameraLoadedObserver),this._onCameraLoadedObserver=this.onCameraLoadedObservable.add(e)},enumerable:!1,configurable:!0}),Object.defineProperty(e.prototype,"onComplete",{set:function(e){this._onCompleteObserver&&this.onCompleteObservable.remove(this._onCompleteObserver),this._onCompleteObserver=this.onCompleteObservable.add(e)},enumerable:!1,configurable:!0}),Object.defineProperty(e.prototype,"onError",{set:function(e){this._onErrorObserver&&this.onErrorObservable.remove(this._onErrorObserver),this._onErrorObserver=this.onErrorObservable.add(e)},enumerable:!1,configurable:!0}),Object.defineProperty(e.prototype,"onDispose",{set:function(e){this._onDisposeObserver&&this.onDisposeObservable.remove(this._onDisposeObserver),this._onDisposeObserver=this.onDisposeObservable.add(e)},enumerable:!1,configurable:!0}),Object.defineProperty(e.prototype,"onExtensionLoaded",{set:function(e){this._onExtensionLoadedObserver&&this.onExtensionLoadedObservable.remove(this._onExtensionLoadedObserver),this._onExtensionLoadedObserver=this.onExtensionLoadedObservable.add(e)},enumerable:!1,configurable:!0}),Object.defineProperty(e.prototype,"loggingEnabled",{get:function(){return this._loggingEnabled},set:function(e){this._loggingEnabled!==e&&(this._loggingEnabled=e,this._loggingEnabled?this._log=this._logEnabled:this._log=this._logDisabled)},enumerable:!1,configurable:!0}),Object.defineProperty(e.prototype,"capturePerformanceCounters",{get:function(){return this._capturePerformanceCounters},set:function(e){this._capturePerformanceCounters!==e&&(this._capturePerformanceCounters=e,this._capturePerformanceCounters?(this._startPerformanceCounter=this._startPerformanceCounterEnabled,this._endPerformanceCounter=this._endPerformanceCounterEnabled):(this._startPerformanceCounter=this._startPerformanceCounterDisabled,this._endPerformanceCounter=this._endPerformanceCounterDisabled))},enumerable:!1,configurable:!0}),Object.defineProperty(e.prototype,"onValidated",{set:function(e){this._onValidatedObserver&&this.onValidatedObservable.remove(this._onValidatedObserver),this._onValidatedObserver=this.onValidatedObservable.add(e)},enumerable:!1,configurable:!0}),e.prototype.dispose=function(){this._loader&&(this._loader.dispose(),this._loader=null);for(var e=0,t=this._requests;e<t.length;e++)t[e].abort();this._requests.length=0,delete this._progressCallback,this.preprocessUrlAsync=function(e){return Promise.resolve(e)},this.onMeshLoadedObservable.clear(),this.onSkinLoadedObservable.clear(),this.onTextureLoadedObservable.clear(),this.onMaterialLoadedObservable.clear(),this.onCameraLoadedObservable.clear(),this.onCompleteObservable.clear(),this.onExtensionLoadedObservable.clear(),this.onDisposeObservable.notifyObservers(void 0),this.onDisposeObservable.clear()},e.prototype.loadFile=function(e,t,n,r,o,a){var i=this;this._progressCallback=r;var s=t.name?"file:":d.Tools.GetFolderPath(t),l=t.name||d.Tools.GetFilename(t);if(o){if(this.useRangeRequests){this.validate&&d.Logger.Warn("glTF validation is not supported when range requests are enabled");var c={abort:function(){},onCompleteObservable:new d.Observable},u={readAsync:function(n,r){return new Promise((function(o,a){i._loadFile(e,t,(function(e){o(new Uint8Array(e))}),!0,(function(e){a(e)}),(function(e){e.setRequestHeader("Range","bytes=".concat(n,"-").concat(n+r-1))}))}))},byteLength:0};return this._unpackBinaryAsync(new d.DataReader(u)).then((function(e){c.onCompleteObservable.notifyObservers(c),n(e)}),a?function(e){return a(void 0,e)}:void 0),c}return this._loadFile(e,t,(function(t){i._validate(e,t,s,l),i._unpackBinaryAsync(new d.DataReader({readAsync:function(e,n){return g(t,e,n)},byteLength:t.byteLength})).then((function(e){n(e)}),a?function(e){return a(void 0,e)}:void 0)}),!0,a)}return this._loadFile(e,t,(function(t){i._validate(e,t,s,l),n({json:i._parseJson(t)})}),o,a)},e.prototype.importMeshAsync=function(e,t,n,r,o,a){var i=this;return Promise.resolve().then((function(){return i.onParsedObservable.notifyObservers(n),i.onParsedObservable.clear(),i._log("Loading ".concat(a||"")),i._loader=i._getLoader(n),i._loader.importMeshAsync(e,t,null,n,r,o,a)}))},e.prototype.loadAsync=function(e,t,n,r,o){var a=this;return Promise.resolve().then((function(){return a.onParsedObservable.notifyObservers(t),a.onParsedObservable.clear(),a._log("Loading ".concat(o||"")),a._loader=a._getLoader(t),a._loader.loadAsync(e,t,n,r,o)}))},e.prototype.loadAssetContainerAsync=function(e,t,n,r,o){var a=this;return Promise.resolve().then((function(){a.onParsedObservable.notifyObservers(t),a.onParsedObservable.clear(),a._log("Loading ".concat(o||"")),a._loader=a._getLoader(t);var i=new d.AssetContainer(e),s=[];a.onMaterialLoadedObservable.add((function(e){s.push(e)}));var l=[];a.onTextureLoadedObservable.add((function(e){l.push(e)}));var c=[];a.onCameraLoadedObservable.add((function(e){c.push(e)}));var u=[];return a.onMeshLoadedObservable.add((function(e){e.morphTargetManager&&u.push(e.morphTargetManager)})),a._loader.importMeshAsync(null,e,i,t,n,r,o).then((function(e){return Array.prototype.push.apply(i.geometries,e.geometries),Array.prototype.push.apply(i.meshes,e.meshes),Array.prototype.push.apply(i.particleSystems,e.particleSystems),Array.prototype.push.apply(i.skeletons,e.skeletons),Array.prototype.push.apply(i.animationGroups,e.animationGroups),Array.prototype.push.apply(i.materials,s),Array.prototype.push.apply(i.textures,l),Array.prototype.push.apply(i.lights,e.lights),Array.prototype.push.apply(i.transformNodes,e.transformNodes),Array.prototype.push.apply(i.cameras,c),Array.prototype.push.apply(i.morphTargetManagers,u),i}))}))},e.prototype.canDirectLoad=function(t){return-1!==t.indexOf("asset")&&-1!==t.indexOf("version")||t.startsWith("data:base64,"+e._MagicBase64Encoded)||t.startsWith("data:;base64,"+e._MagicBase64Encoded)||t.startsWith("data:application/octet-stream;base64,"+e._MagicBase64Encoded)||t.startsWith("data:model/gltf-binary;base64,"+e._MagicBase64Encoded)},e.prototype.directLoad=function(t,n){if(n.startsWith("base64,"+e._MagicBase64Encoded)||n.startsWith(";base64,"+e._MagicBase64Encoded)||n.startsWith("application/octet-stream;base64,"+e._MagicBase64Encoded)||n.startsWith("model/gltf-binary;base64,"+e._MagicBase64Encoded)){var r=(0,d.DecodeBase64UrlToBinary)(n);return this._validate(t,r),this._unpackBinaryAsync(new d.DataReader({readAsync:function(e,t){return g(r,e,t)},byteLength:r.byteLength}))}return this._validate(t,n),Promise.resolve({json:this._parseJson(n)})},e.prototype.createPlugin=function(){return new e},Object.defineProperty(e.prototype,"loaderState",{get:function(){return this._state},enumerable:!1,configurable:!0}),e.prototype.whenCompleteAsync=function(){var e=this;return new Promise((function(t,n){e.onCompleteObservable.addOnce((function(){t()})),e.onErrorObservable.addOnce((function(e){n(e)}))}))},e.prototype._setState=function(e){this._state!==e&&(this._state=e,this.onLoaderStateChangedObservable.notifyObservers(this._state),this._log(m[this._state]))},e.prototype._loadFile=function(e,t,n,r,o,a){var i=this,s=e._loadFile(t,n,(function(e){i._onProgress(e,s)}),!0,r,o,a);return s.onCompleteObservable.add((function(e){i._requests.splice(i._requests.indexOf(e),1)})),this._requests.push(s),s},e.prototype._onProgress=function(e,t){if(this._progressCallback){t._lengthComputable=e.lengthComputable,t._loaded=e.loaded,t._total=e.total;for(var n=!0,r=0,o=0,a=0,i=this._requests;a<i.length;a++){var s=i[a];if(void 0===s._lengthComputable||void 0===s._loaded||void 0===s._total)return;n=n&&s._lengthComputable,r+=s._loaded,o+=s._total}this._progressCallback({lengthComputable:n,loaded:r,total:n?o:0})}},e.prototype._validate=function(e,t,n,r){var o=this;void 0===n&&(n=""),void 0===r&&(r=""),this.validate&&(this._startPerformanceCounter("Validate JSON"),y.ValidateAsync(t,n,r,(function(t){return o.preprocessUrlAsync(n+t).then((function(t){return e._loadFileAsync(t,void 0,!0,!0)}))})).then((function(e){o._endPerformanceCounter("Validate JSON"),o.onValidatedObservable.notifyObservers(e),o.onValidatedObservable.clear()}),(function(e){o._endPerformanceCounter("Validate JSON"),d.Tools.Warn("Failed to validate: ".concat(e.message)),o.onValidatedObservable.clear()})))},e.prototype._getLoader=function(t){var n=t.json.asset||{};this._log("Asset version: ".concat(n.version)),n.minVersion&&this._log("Asset minimum version: ".concat(n.minVersion)),n.generator&&this._log("Asset generator: ".concat(n.generator));var r=e._parseVersion(n.version);if(!r)throw new Error("Invalid version: "+n.version);if(void 0!==n.minVersion){var o=e._parseVersion(n.minVersion);if(!o)throw new Error("Invalid minimum version: "+n.minVersion);if(e._compareVersion(o,{major:2,minor:0})>0)throw new Error("Incompatible minimum version: "+n.minVersion)}var a={1:e._CreateGLTF1Loader,2:e._CreateGLTF2Loader}[r.major];if(!a)throw new Error("Unsupported version: "+n.version);return a(this)},e.prototype._parseJson=function(e){this._startPerformanceCounter("Parse JSON"),this._log("JSON length: ".concat(e.length));var t=JSON.parse(e);return this._endPerformanceCounter("Parse JSON"),t},e.prototype._unpackBinaryAsync=function(e){var t=this;return this._startPerformanceCounter("Unpack Binary"),e.loadAsync(20).then((function(){var n=e.readUint32();if(1179937895!==n)throw new d.RuntimeError("Unexpected magic: "+n,d.ErrorCodes.GLTFLoaderUnexpectedMagicError);var r=e.readUint32();t.loggingEnabled&&t._log("Binary version: ".concat(r));var o,a=e.readUint32();switch(t.useRangeRequests||a===e.buffer.byteLength||d.Logger.Warn("Length in header does not match actual data length: ".concat(a," != ").concat(e.buffer.byteLength)),r){case 1:o=t._unpackBinaryV1Async(e,a);break;case 2:o=t._unpackBinaryV2Async(e,a);break;default:throw new Error("Unsupported version: "+r)}return t._endPerformanceCounter("Unpack Binary"),o}))},e.prototype._unpackBinaryV1Async=function(e,t){var n=e.readUint32(),r=e.readUint32();if(0!==r)throw new Error("Unexpected content format: ".concat(r));var o=t-e.byteOffset,a={json:this._parseJson(e.readString(n)),bin:null};if(0!==o){var i=e.byteOffset;a.bin={readAsync:function(t,n){return e.buffer.readAsync(i+t,n)},byteLength:o}}return Promise.resolve(a)},e.prototype._unpackBinaryV2Async=function(e,t){var n=this,r=1313821514,o=e.readUint32();if(e.readUint32()!==r)throw new Error("First chunk format is not JSON");return e.byteOffset+o===t?e.loadAsync(o).then((function(){return{json:n._parseJson(e.readString(o)),bin:null}})):e.loadAsync(o+8).then((function(){var a={json:n._parseJson(e.readString(o)),bin:null},i=function(){var n=e.readUint32();switch(e.readUint32()){case r:throw new Error("Unexpected JSON chunk");case 5130562:var o=e.byteOffset;a.bin={readAsync:function(t,n){return e.buffer.readAsync(o+t,n)},byteLength:n},e.skipBytes(n);break;default:e.skipBytes(n)}return e.byteOffset!==t?e.loadAsync(8).then(i):Promise.resolve(a)};return i()}))},e._parseVersion=function(e){if("1.0"===e||"1.0.1"===e)return{major:1,minor:0};var t=(e+"").match(/^(\d+)\.(\d+)/);return t?{major:parseInt(t[1]),minor:parseInt(t[2])}:null},e._compareVersion=function(e,t){return e.major>t.major?1:e.major<t.major?-1:e.minor>t.minor?1:e.minor<t.minor?-1:0},e.prototype._logOpen=function(e){this._log(e),this._logIndentLevel++},e.prototype._logClose=function(){--this._logIndentLevel},e.prototype._logEnabled=function(t){var n=e._logSpaces.substr(0,2*this._logIndentLevel);d.Logger.Log("".concat(n).concat(t))},e.prototype._logDisabled=function(e){},e.prototype._startPerformanceCounterEnabled=function(e){d.Tools.StartPerformanceCounter(e)},e.prototype._startPerformanceCounterDisabled=function(e){},e.prototype._endPerformanceCounterEnabled=function(e){d.Tools.EndPerformanceCounter(e)},e.prototype._endPerformanceCounterDisabled=function(e){},e.IncrementalLoading=!0,e.HomogeneousCoordinates=!1,e._MagicBase64Encoded="Z2xURg",e._logSpaces="                                ",e}();d.SceneLoader&&d.SceneLoader.RegisterPlugin(new v);var b=function(e,t){return b=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var n in t)Object.prototype.hasOwnProperty.call(t,n)&&(e[n]=t[n])},b(e,t)};function A(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Class extends value "+String(t)+" is not a constructor or null");function n(){this.constructor=e}b(e,t),e.prototype=null===t?Object.create(t):(n.prototype=t.prototype,new n)}var T,x,E,O,M,L,C,w,S=function(){return S=Object.assign||function(e){for(var t,n=1,r=arguments.length;n<r;n++)for(var o in t=arguments[n])Object.prototype.hasOwnProperty.call(t,o)&&(e[o]=t[o]);return 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d.SpotLight(o.name,new d.Vector3(0,10,0),new d.Vector3(0,-1,0),h.fallOffAngle||Math.PI,h.fallOffExponent||0,e.scene).diffuse=d.Color3.FromArray(h.color||[1,1,1]));break;default:d.Tools.Warn('GLTF Material Common extension: light type "'+o.type+"” not supported")}}return!1},t.prototype.loadMaterialAsync=function(e,t,n,r){var o=e.materials[t];if(!o||!o.extensions)return!1;var a=o.extensions[this.name];if(!a)return!1;var i=new d.StandardMaterial(t,e.scene);return i.sideOrientation=d.Material.CounterClockWiseSideOrientation,"CONSTANT"===a.technique&&(i.disableLighting=!0),i.backFaceCulling=void 0!==a.doubleSided&&!a.doubleSided,i.alpha=void 0===a.values.transparency?1:a.values.transparency,i.specularPower=void 0===a.values.shininess?0:a.values.shininess,"string"==typeof a.values.ambient?this._loadTexture(e,a.values.ambient,i,"ambientTexture",r):i.ambientColor=d.Color3.FromArray(a.values.ambient||[0,0,0]),"string"==typeof a.values.diffuse?this._loadTexture(e,a.values.diffuse,i,"diffuseTexture",r):i.diffuseColor=d.Color3.FromArray(a.values.diffuse||[0,0,0]),"string"==typeof a.values.emission?this._loadTexture(e,a.values.emission,i,"emissiveTexture",r):i.emissiveColor=d.Color3.FromArray(a.values.emission||[0,0,0]),"string"==typeof a.values.specular?this._loadTexture(e,a.values.specular,i,"specularTexture",r):i.specularColor=d.Color3.FromArray(a.values.specular||[0,0,0]),!0},t.prototype._loadTexture=function(e,t,n,r,o){$.LoadTextureBufferAsync(e,t,(function(o){$.CreateTextureAsync(e,t,o,(function(e){return n[r]=e}))}),o)},t}(te);function oe(e,t,n,r){return d.Vector3.FromArray(t,n).scaleInPlace(r)}ee.RegisterExtension(new re);var ae=function(){function e(e,t,n,r){this.type=e,this.name=t,this.getValue=n,this.getStride=r}return e.prototype._buildAnimation=function(e,t,n){var r=new d.Animation(e,this.name,t,this.type);return r.setKeys(n),r},e}(),ie=function(e){function t(){return null!==e&&e.apply(this,arguments)||this}return A(t,e),t.prototype.buildAnimations=function(e,t,n,r,o){o(e._babylonTransformNode,this._buildAnimation(t,n,r))},t}(ae),se=function(e){function t(){return null!==e&&e.apply(this,arguments)||this}return A(t,e),t.prototype.buildAnimations=function(e,t,n,r,o){if(e._numMorphTargets)for(var a=function(a){var s=new d.Animation("".concat(t,"_").concat(a),i.name,n,i.type);if(s.setKeys(r.map((function(e){return{frame:e.frame,inTangent:e.inTangent?e.inTangent[a]:void 0,value:e.value[a],outTangent:e.outTangent?e.outTangent[a]:void 0,interpolation:e.interpolation}}))),e._primitiveBabylonMeshes)for(var l=0,c=e._primitiveBabylonMeshes;l<c.length;l++){var u=c[l];if(u.morphTargetManager){var h=u.morphTargetManager.getTarget(a),f=s.clone();h.animations.push(f),o(h,f)}}},i=this,s=0;s<e._numMorphTargets;s++)a(s)},t}(ae),le={translation:[new ie(d.Animation.ANIMATIONTYPE_VECTOR3,"position",oe,(function(){return 3}))],rotation:[new ie(d.Animation.ANIMATIONTYPE_QUATERNION,"rotationQuaternion",(function(e,t,n,r){return d.Quaternion.FromArray(t,n).scaleInPlace(r)}),(function(){return 4}))],scale:[new ie(d.Animation.ANIMATIONTYPE_VECTOR3,"scaling",oe,(function(){return 3}))],weights:[new se(d.Animation.ANIMATIONTYPE_FLOAT,"influence",(function(e,t,n,r){for(var o=new Array(e._numMorphTargets),a=0;a<o.length;a++)o[a]=t[n++]*r;return o}),(function(e){return e._numMorphTargets}))]};function ce(){for(var e=[],t=0;t<arguments.length;t++)e[t]=arguments[t];var n=function(e){return e&&"object"==typeof e};return e.reduce((function(e,t){return Object.keys(t).forEach((function(r){var o=e[r],a=t[r];Array.isArray(o)&&Array.isArray(a)?e[r]=o.concat.apply(o,a):n(o)&&n(a)?e[r]=ce(o,a):e[r]=a})),e}),{})}var ue=function(){function e(){}return e.Get=function(e,t,n){if(!t||null==n||!t[n])throw new Error("".concat(e,": Failed to find index (").concat(n,")"));return t[n]},e.Assign=function(e){if(e)for(var t=0;t<e.length;t++)e[t].index=t},e}(),de=function(){function e(e){this._completePromises=new Array,this._assetContainer=null,this._babylonLights=[],this._disableInstancedMesh=0,this._extensions=new Array,this._disposed=!1,this._rootUrl=null,this._fileName=null,this._uniqueRootUrl=null,this._bin=null,this._rootBabylonMesh=null,this._defaultBabylonMaterialData={},this._postSceneLoadActions=new Array,this._parent=e}return e.RegisterExtension=function(t,n){e.UnregisterExtension(t)&&d.Logger.Warn("Extension with the name '".concat(t,"' already exists")),e._RegisteredExtensions[t]={factory:n}},e.UnregisterExtension=function(t){return!!e._RegisteredExtensions[t]&&(delete e._RegisteredExtensions[t],!0)},Object.defineProperty(e.prototype,"gltf",{get:function(){if(!this._gltf)throw new Error("glTF JSON is not available");return this._gltf},enumerable:!1,configurable:!0}),Object.defineProperty(e.prototype,"bin",{get:function(){return this._bin},enumerable:!1,configurable:!0}),Object.defineProperty(e.prototype,"parent",{get:function(){return this._parent},enumerable:!1,configurable:!0}),Object.defineProperty(e.prototype,"babylonScene",{get:function(){if(!this._babylonScene)throw new Error("Scene is not available");return this._babylonScene},enumerable:!1,configurable:!0}),Object.defineProperty(e.prototype,"rootBabylonMesh",{get:function(){return this._rootBabylonMesh},enumerable:!1,configurable:!0}),e.prototype.dispose=function(){this._disposed||(this._disposed=!0,this._completePromises.length=0,this._extensions.forEach((function(e){return e.dispose&&e.dispose()})),this._extensions.length=0,this._gltf=null,this._bin=null,this._babylonScene=null,this._rootBabylonMesh=null,this._defaultBabylonMaterialData={},this._postSceneLoadActions.length=0,this._parent.dispose())},e.prototype.importMeshAsync=function(e,t,n,r,o,a,i){var s=this;return void 0===i&&(i=""),Promise.resolve().then((function(){s._babylonScene=t,s._assetContainer=n,s._loadData(r);var a=null;if(e){var l={};if(s._gltf.nodes)for(var c=0,u=s._gltf.nodes;c<u.length;c++){var d=u[c];d.name&&(l[d.name]=d.index)}a=(e instanceof Array?e:[e]).map((function(e){var t=l[e];if(void 0===t)throw new Error("Failed to find node '".concat(e,"'"));return t}))}return s._loadAsync(o,i,a,(function(){return{meshes:s._getMeshes(),particleSystems:[],skeletons:s._getSkeletons(),animationGroups:s._getAnimationGroups(),lights:s._babylonLights,transformNodes:s._getTransformNodes(),geometries:s._getGeometries()}}))}))},e.prototype.loadAsync=function(e,t,n,r,o){var a=this;return void 0===o&&(o=""),Promise.resolve().then((function(){return a._babylonScene=e,a._loadData(t),a._loadAsync(n,o,null,(function(){}))}))},e.prototype._loadAsync=function(e,t,n,r){var o=this;return Promise.resolve().then((function(){o._rootUrl=e,o._uniqueRootUrl=!e.startsWith("file:")&&t?e:"".concat(e).concat(Date.now(),"/"),o._fileName=t,o._loadExtensions(),o._checkExtensions();var a="".concat(m[m.LOADING]," => ").concat(m[m.READY]),i="".concat(m[m.LOADING]," => ").concat(m[m.COMPLETE]);o._parent._startPerformanceCounter(a),o._parent._startPerformanceCounter(i),o._parent._setState(m.LOADING),o._extensionsOnLoading();var s=new Array,l=o._babylonScene.blockMaterialDirtyMechanism;if(o._babylonScene.blockMaterialDirtyMechanism=!0,!o.parent.loadOnlyMaterials)if(n)s.push(o.loadSceneAsync("/nodes",{nodes:n,index:-1}));else if(null!=o._gltf.scene||o._gltf.scenes&&o._gltf.scenes[0]){var c=ue.Get("/scene",o._gltf.scenes,o._gltf.scene||0);s.push(o.loadSceneAsync("/scenes/".concat(c.index),c))}if(!o.parent.skipMaterials&&o.parent.loadAllMaterials&&o._gltf.materials)for(var u=0;u<o._gltf.materials.length;++u){var h=o._gltf.materials[u],f="/materials/"+u,p=d.Material.TriangleFillMode;s.push(o._loadMaterialAsync(f,h,null,p,(function(){})))}return o._babylonScene.blockMaterialDirtyMechanism=l,o._parent.compileMaterials&&s.push(o._compileMaterialsAsync()),o._parent.compileShadowGenerators&&s.push(o._compileShadowGeneratorsAsync()),Promise.all(s).then((function(){return o._rootBabylonMesh&&o._rootBabylonMesh.setEnabled(!0),o._extensionsOnReady(),o._parent._setState(m.READY),o._startAnimations(),r()})).then((function(e){return o._parent._endPerformanceCounter(a),d.Tools.SetImmediate((function(){o._disposed||Promise.all(o._completePromises).then((function(){o._parent._endPerformanceCounter(i),o._parent._setState(m.COMPLETE),o._parent.onCompleteObservable.notifyObservers(void 0),o._parent.onCompleteObservable.clear(),o.dispose()}),(function(e){o._parent.onErrorObservable.notifyObservers(e),o._parent.onErrorObservable.clear(),o.dispose()}))})),e}))})).catch((function(e){throw o._disposed||(o._parent.onErrorObservable.notifyObservers(e),o._parent.onErrorObservable.clear(),o.dispose()),e}))},e.prototype._loadData=function(e){if(this._gltf=e.json,this._setupData(),e.bin){var t=this._gltf.buffers;if(t&&t[0]&&!t[0].uri){var n=t[0];(n.byteLength<e.bin.byteLength-3||n.byteLength>e.bin.byteLength)&&d.Logger.Warn("Binary buffer length (".concat(n.byteLength,") from JSON does not match chunk length (").concat(e.bin.byteLength,")")),this._bin=e.bin}else d.Logger.Warn("Unexpected BIN chunk")}},e.prototype._setupData=function(){if(ue.Assign(this._gltf.accessors),ue.Assign(this._gltf.animations),ue.Assign(this._gltf.buffers),ue.Assign(this._gltf.bufferViews),ue.Assign(this._gltf.cameras),ue.Assign(this._gltf.images),ue.Assign(this._gltf.materials),ue.Assign(this._gltf.meshes),ue.Assign(this._gltf.nodes),ue.Assign(this._gltf.samplers),ue.Assign(this._gltf.scenes),ue.Assign(this._gltf.skins),ue.Assign(this._gltf.textures),this._gltf.nodes){for(var e={},t=0,n=this._gltf.nodes;t<n.length;t++)if((l=n[t]).children)for(var r=0,o=l.children;r<o.length;r++)e[o[r]]=l.index;for(var a=this._createRootNode(),i=0,s=this._gltf.nodes;i<s.length;i++){var l,c=e[(l=s[i]).index];l.parent=void 0===c?a:this._gltf.nodes[c]}}},e.prototype._loadExtensions=function(){for(var t in e._RegisteredExtensions){var n=e._RegisteredExtensions[t].factory(this);n.name!==t&&d.Logger.Warn("The name of the glTF loader extension instance does not match the registered name: ".concat(n.name," !== ").concat(t)),this._extensions.push(n),this._parent.onExtensionLoadedObservable.notifyObservers(n)}this._extensions.sort((function(e,t){return(e.order||Number.MAX_VALUE)-(t.order||Number.MAX_VALUE)})),this._parent.onExtensionLoadedObservable.clear()},e.prototype._checkExtensions=function(){if(this._gltf.extensionsRequired)for(var e=function(e){if(!t._extensions.some((function(t){return t.name===e&&t.enabled})))throw new Error("Require extension ".concat(e," is not available"))},t=this,n=0,r=this._gltf.extensionsRequired;n<r.length;n++)e(r[n])},e.prototype._createRootNode=function(){this._babylonScene._blockEntityCollection=!!this._assetContainer,this._rootBabylonMesh=new d.Mesh("__root__",this._babylonScene),this._rootBabylonMesh._parentContainer=this._assetContainer,this._babylonScene._blockEntityCollection=!1,this._rootBabylonMesh.setEnabled(!1);var t={_babylonTransformNode:this._rootBabylonMesh,index:-1};switch(this._parent.coordinateSystemMode){case p.AUTO:this._babylonScene.useRightHandedSystem||(t.rotation=[0,1,0,0],t.scale=[1,1,-1],e._LoadTransform(t,this._rootBabylonMesh));break;case p.FORCE_RIGHT_HANDED:this._babylonScene.useRightHandedSystem=!0;break;default:throw new Error("Invalid coordinate system mode (".concat(this._parent.coordinateSystemMode,")"))}return this._parent.onMeshLoadedObservable.notifyObservers(this._rootBabylonMesh),t},e.prototype.loadSceneAsync=function(e,t){var n=this,r=this._extensionsLoadSceneAsync(e,t);if(r)return r;var o=new Array;if(this.logOpen("".concat(e," ").concat(t.name||"")),t.nodes)for(var a=0,i=t.nodes;a<i.length;a++){var s=i[a],l=ue.Get("".concat(e,"/nodes/").concat(s),this._gltf.nodes,s);o.push(this.loadNodeAsync("/nodes/".concat(l.index),l,(function(e){e.parent=n._rootBabylonMesh})))}for(var c=0,u=this._postSceneLoadActions;c<u.length;c++)(0,u[c])();return o.push(this._loadAnimationsAsync()),this.logClose(),Promise.all(o).then((function(){}))},e.prototype._forEachPrimitive=function(e,t){if(e._primitiveBabylonMeshes)for(var n=0,r=e._primitiveBabylonMeshes;n<r.length;n++)t(r[n])},e.prototype._getGeometries=function(){var e=new Array,t=this._gltf.nodes;if(t)for(var n=0,r=t;n<r.length;n++){var o=r[n];this._forEachPrimitive(o,(function(t){var n=t.geometry;n&&-1===e.indexOf(n)&&e.push(n)}))}return e},e.prototype._getMeshes=function(){var e=new Array;this._rootBabylonMesh&&e.push(this._rootBabylonMesh);var t=this._gltf.nodes;if(t)for(var n=0,r=t;n<r.length;n++){var o=r[n];this._forEachPrimitive(o,(function(t){e.push(t)}))}return e},e.prototype._getTransformNodes=function(){var e=new Array,t=this._gltf.nodes;if(t)for(var n=0,r=t;n<r.length;n++){var o=r[n];o._babylonTransformNode&&"TransformNode"===o._babylonTransformNode.getClassName()&&e.push(o._babylonTransformNode),o._babylonTransformNodeForSkin&&e.push(o._babylonTransformNodeForSkin)}return e},e.prototype._getSkeletons=function(){var e=new Array,t=this._gltf.skins;if(t)for(var n=0,r=t;n<r.length;n++){var o=r[n];o._data&&e.push(o._data.babylonSkeleton)}return e},e.prototype._getAnimationGroups=function(){var e=new Array,t=this._gltf.animations;if(t)for(var n=0,r=t;n<r.length;n++){var o=r[n];o._babylonAnimationGroup&&e.push(o._babylonAnimationGroup)}return e},e.prototype._startAnimations=function(){switch(this._parent.animationStartMode){case _.NONE:break;case _.FIRST:0!==(e=this._getAnimationGroups()).length&&e[0].start(!0);break;case _.ALL:for(var e,t=0,n=e=this._getAnimationGroups();t<n.length;t++)n[t].start(!0);break;default:return void d.Logger.Error("Invalid animation start mode (".concat(this._parent.animationStartMode,")"))}},e.prototype.loadNodeAsync=function(t,n,r){var o=this;void 0===r&&(r=function(){});var a=this._extensionsLoadNodeAsync(t,n,r);if(a)return a;if(n._babylonTransformNode)throw new Error("".concat(t,": Invalid recursive node hierarchy"));var i=new Array;this.logOpen("".concat(t," ").concat(n.name||""));var s=function(a){if(e.AddPointerMetadata(a,t),e._LoadTransform(n,a),null!=n.camera){var s=ue.Get("".concat(t,"/camera"),o._gltf.cameras,n.camera);i.push(o.loadCameraAsync("/cameras/".concat(s.index),s,(function(e){e.parent=a})))}if(n.children)for(var l=0,c=n.children;l<c.length;l++){var u=c[l],d=ue.Get("".concat(t,"/children/").concat(u),o._gltf.nodes,u);i.push(o.loadNodeAsync("/nodes/".concat(d.index),d,(function(e){e.parent=a})))}r(a)};if(null==n.mesh||null!=n.skin){var l=n.name||"node".concat(n.index);this._babylonScene._blockEntityCollection=!!this._assetContainer;var c=new d.TransformNode(l,this._babylonScene);c._parentContainer=this._assetContainer,this._babylonScene._blockEntityCollection=!1,null==n.mesh?n._babylonTransformNode=c:n._babylonTransformNodeForSkin=c,s(c)}if(null!=n.mesh)if(null==n.skin){var u=ue.Get("".concat(t,"/mesh"),this._gltf.meshes,n.mesh);i.push(this._loadMeshAsync("/meshes/".concat(u.index),n,u,s))}else u=ue.Get("".concat(t,"/mesh"),this._gltf.meshes,n.mesh),i.push(this._loadMeshAsync("/meshes/".concat(u.index),n,u,(function(e){var r=n._babylonTransformNodeForSkin;e.metadata=ce(r.metadata,e.metadata||{});var a=ue.Get("".concat(t,"/skin"),o._gltf.skins,n.skin);i.push(o._loadSkinAsync("/skins/".concat(a.index),n,a,(function(t){o._forEachPrimitive(n,(function(e){e.skeleton=t})),o._postSceneLoadActions.push((function(){if(null!=a.skeleton){var t=ue.Get("/skins/".concat(a.index,"/skeleton"),o._gltf.nodes,a.skeleton).parent;n.index===t.index?e.parent=r.parent:e.parent=t._babylonTransformNode}else e.parent=o._rootBabylonMesh;o._parent.onSkinLoadedObservable.notifyObservers({node:r,skinnedNode:e})}))})))})));return this.logClose(),Promise.all(i).then((function(){return o._forEachPrimitive(n,(function(e){e.geometry&&e.geometry.useBoundingInfoFromGeometry?e._updateBoundingInfo():e.refreshBoundingInfo(!0)})),n._babylonTransformNode}))},e.prototype._loadMeshAsync=function(e,t,n,r){var o=n.primitives;if(!o||!o.length)throw new Error("".concat(e,": Primitives are missing"));null==o[0].index&&ue.Assign(o);var a=new Array;this.logOpen("".concat(e," ").concat(n.name||""));var i=t.name||"node".concat(t.index);if(1===o.length){var s=n.primitives[0];a.push(this._loadMeshPrimitiveAsync("".concat(e,"/primitives/").concat(s.index),i,t,n,s,(function(e){t._babylonTransformNode=e,t._primitiveBabylonMeshes=[e]})))}else{this._babylonScene._blockEntityCollection=!!this._assetContainer,t._babylonTransformNode=new d.TransformNode(i,this._babylonScene),t._babylonTransformNode._parentContainer=this._assetContainer,this._babylonScene._blockEntityCollection=!1,t._primitiveBabylonMeshes=[];for(var l=0,c=o;l<c.length;l++)s=c[l],a.push(this._loadMeshPrimitiveAsync("".concat(e,"/primitives/").concat(s.index),"".concat(i,"_primitive").concat(s.index),t,n,s,(function(e){e.parent=t._babylonTransformNode,t._primitiveBabylonMeshes.push(e)})))}return r(t._babylonTransformNode),this.logClose(),Promise.all(a).then((function(){return t._babylonTransformNode}))},e.prototype._loadMeshPrimitiveAsync=function(t,n,r,o,a,i){var s=this,l=this._extensionsLoadMeshPrimitiveAsync(t,n,r,o,a,i);if(l)return l;this.logOpen("".concat(t));var c,u,h=0===this._disableInstancedMesh&&this._parent.createInstances&&null==r.skin&&!o.primitives[0].targets;if(h&&a._instanceData)this._babylonScene._blockEntityCollection=!!this._assetContainer,(c=a._instanceData.babylonSourceMesh.createInstance(n))._parentContainer=this._assetContainer,this._babylonScene._blockEntityCollection=!1,u=a._instanceData.promise;else{var f=new Array;this._babylonScene._blockEntityCollection=!!this._assetContainer;var p=new d.Mesh(n,this._babylonScene);p._parentContainer=this._assetContainer,this._babylonScene._blockEntityCollection=!1,p.overrideMaterialSideOrientation=this._babylonScene.useRightHandedSystem?d.Material.CounterClockWiseSideOrientation:d.Material.ClockWiseSideOrientation,this._createMorphTargets(t,r,o,a,p),f.push(this._loadVertexDataAsync(t,a,p).then((function(e){return s._loadMorphTargetsAsync(t,a,p,e).then((function(){s._disposed||(s._babylonScene._blockEntityCollection=!!s._assetContainer,e.applyToMesh(p),e._parentContainer=s._assetContainer,s._babylonScene._blockEntityCollection=!1)}))})));var _=e._GetDrawMode(t,a.mode);if(null==a.material){var m=this._defaultBabylonMaterialData[_];m||(m=this._createDefaultMaterial("__GLTFLoader._default",_),this._parent.onMaterialLoadedObservable.notifyObservers(m),this._defaultBabylonMaterialData[_]=m),p.material=m}else if(!this.parent.skipMaterials){var y=ue.Get("".concat(t,"/material"),this._gltf.materials,a.material);f.push(this._loadMaterialAsync("/materials/".concat(y.index),y,p,_,(function(e){p.material=e})))}u=Promise.all(f),h&&(a._instanceData={babylonSourceMesh:p,promise:u}),c=p}return e.AddPointerMetadata(c,t),this._parent.onMeshLoadedObservable.notifyObservers(c),i(c),this.logClose(),u.then((function(){return c}))},e.prototype._loadVertexDataAsync=function(e,t,n){var r=this,o=this._extensionsLoadVertexDataAsync(e,t,n);if(o)return o;var a=t.attributes;if(!a)throw new Error("".concat(e,": Attributes are missing"));var i=new Array,s=new d.Geometry(n.name,this._babylonScene);if(null==t.indices)n.isUnIndexed=!0;else{var l=ue.Get("".concat(e,"/indices"),this._gltf.accessors,t.indices);i.push(this._loadIndicesAccessorAsync("/accessors/".concat(l.index),l).then((function(e){s.setIndices(e)})))}var c=function(t,o,l){if(null!=a[t]){n._delayInfo=n._delayInfo||[],-1===n._delayInfo.indexOf(o)&&n._delayInfo.push(o);var c=ue.Get("".concat(e,"/attributes/").concat(t),r._gltf.accessors,a[t]);i.push(r._loadVertexAccessorAsync("/accessors/".concat(c.index),c,o).then((function(e){var t,o;if(e.getKind()===d.VertexBuffer.PositionKind&&!r.parent.alwaysComputeBoundingBox&&!n.skeleton&&c.min&&c.max){var a=(t=d.TmpVectors.Vector3[0]).copyFromFloats.apply(t,c.min),i=(o=d.TmpVectors.Vector3[1]).copyFromFloats.apply(o,c.max);if(c.normalized&&5126!==c.componentType){var l=1;switch(c.componentType){case 5120:l=127;break;case 5121:l=255;break;case 5122:l=32767;break;case 5123:l=65535}var u=1/l;a.scaleInPlace(u),i.scaleInPlace(u)}s._boundingInfo=new d.BoundingInfo(a,i),s.useBoundingInfoFromGeometry=!0}s.setVerticesBuffer(e,c.count)}))),o==d.VertexBuffer.MatricesIndicesExtraKind&&(n.numBoneInfluencers=8),l&&l(c)}};return c("POSITION",d.VertexBuffer.PositionKind),c("NORMAL",d.VertexBuffer.NormalKind),c("TANGENT",d.VertexBuffer.TangentKind),c("TEXCOORD_0",d.VertexBuffer.UVKind),c("TEXCOORD_1",d.VertexBuffer.UV2Kind),c("TEXCOORD_2",d.VertexBuffer.UV3Kind),c("TEXCOORD_3",d.VertexBuffer.UV4Kind),c("TEXCOORD_4",d.VertexBuffer.UV5Kind),c("TEXCOORD_5",d.VertexBuffer.UV6Kind),c("JOINTS_0",d.VertexBuffer.MatricesIndicesKind),c("WEIGHTS_0",d.VertexBuffer.MatricesWeightsKind),c("JOINTS_1",d.VertexBuffer.MatricesIndicesExtraKind),c("WEIGHTS_1",d.VertexBuffer.MatricesWeightsExtraKind),c("COLOR_0",d.VertexBuffer.ColorKind,(function(e){"VEC4"===e.type&&(n.hasVertexAlpha=!0)})),Promise.all(i).then((function(){return s}))},e.prototype._createMorphTargets=function(e,t,n,r,o){if(r.targets){if(null==t._numMorphTargets)t._numMorphTargets=r.targets.length;else if(r.targets.length!==t._numMorphTargets)throw new Error("".concat(e,": Primitives do not have the same number of targets"));var a=n.extras?n.extras.targetNames:null;this._babylonScene._blockEntityCollection=!!this._assetContainer,o.morphTargetManager=new d.MorphTargetManager(this._babylonScene),o.morphTargetManager._parentContainer=this._assetContainer,this._babylonScene._blockEntityCollection=!1,o.morphTargetManager.areUpdatesFrozen=!0;for(var i=0;i<r.targets.length;i++){var s=t.weights?t.weights[i]:n.weights?n.weights[i]:0,l=a?a[i]:"morphTarget".concat(i);o.morphTargetManager.addTarget(new d.MorphTarget(l,s,o.getScene()))}}},e.prototype._loadMorphTargetsAsync=function(e,t,n,r){if(!t.targets)return Promise.resolve();for(var o=new Array,a=n.morphTargetManager,i=0;i<a.numTargets;i++){var s=a.getTarget(i);o.push(this._loadMorphTargetVertexDataAsync("".concat(e,"/targets/").concat(i),r,t.targets[i],s))}return Promise.all(o).then((function(){a.areUpdatesFrozen=!1}))},e.prototype._loadMorphTargetVertexDataAsync=function(e,t,n,r){var o=this,a=new Array,i=function(r,i,s){if(null!=n[r]){var l=t.getVertexBuffer(i);if(l){var c=ue.Get("".concat(e,"/").concat(r),o._gltf.accessors,n[r]);a.push(o._loadFloatAccessorAsync("/accessors/".concat(c.index),c).then((function(e){s(l,e)})))}}};return i("POSITION",d.VertexBuffer.PositionKind,(function(e,t){var n=new Float32Array(t.length);e.forEach(t.length,(function(e,r){n[r]=t[r]+e})),r.setPositions(n)})),i("NORMAL",d.VertexBuffer.NormalKind,(function(e,t){var n=new Float32Array(t.length);e.forEach(n.length,(function(e,r){n[r]=t[r]+e})),r.setNormals(n)})),i("TANGENT",d.VertexBuffer.TangentKind,(function(e,t){var n=new Float32Array(t.length/3*4),o=0;e.forEach(t.length/3*4,(function(e,r){(r+1)%4!=0&&(n[o]=t[o]+e,o++)})),r.setTangents(n)})),Promise.all(a).then((function(){}))},e._LoadTransform=function(e,t){if(null==e.skin){var n=d.Vector3.Zero(),r=d.Quaternion.Identity(),o=d.Vector3.One();e.matrix?d.Matrix.FromArray(e.matrix).decompose(o,r,n):(e.translation&&(n=d.Vector3.FromArray(e.translation)),e.rotation&&(r=d.Quaternion.FromArray(e.rotation)),e.scale&&(o=d.Vector3.FromArray(e.scale))),t.position=n,t.rotationQuaternion=r,t.scaling=o}},e.prototype._loadSkinAsync=function(e,t,n,r){var o=this,a=this._extensionsLoadSkinAsync(e,t,n);if(a)return a;if(n._data)return r(n._data.babylonSkeleton),n._data.promise;var i="skeleton".concat(n.index);this._babylonScene._blockEntityCollection=!!this._assetContainer;var s=new d.Skeleton(n.name||i,i,this._babylonScene);s._parentContainer=this._assetContainer,this._babylonScene._blockEntityCollection=!1,this._loadBones(e,n,s);var l=this._loadSkinInverseBindMatricesDataAsync(e,n).then((function(e){o._updateBoneMatrices(s,e)}));return n._data={babylonSkeleton:s,promise:l},r(s),l},e.prototype._loadBones=function(e,t,n){if(null==t.skeleton||this._parent.alwaysComputeSkeletonRootNode){var r=this._findSkeletonRootNode("".concat(e,"/joints"),t.joints);if(r)if(void 0===t.skeleton)t.skeleton=r.index;else{var o=ue.Get("".concat(e,"/skeleton"),this._gltf.nodes,t.skeleton);o===r||function(e,t){for(;t.parent;t=t.parent)if(t.parent===e)return!0;return!1}(o,r)||(d.Logger.Warn("".concat(e,"/skeleton: Overriding with nearest common ancestor as skeleton node is not a common root")),t.skeleton=r.index)}else d.Logger.Warn("".concat(e,": Failed to find common root"))}for(var a={},i=0,s=t.joints;i<s.length;i++){var l=s[i],c=ue.Get("".concat(e,"/joints/").concat(l),this._gltf.nodes,l);this._loadBone(c,t,n,a)}},e.prototype._findSkeletonRootNode=function(e,t){if(0===t.length)return null;for(var n={},r=0,o=t;r<o.length;r++){for(var a=o[r],i=new Array,s=ue.Get("".concat(e,"/").concat(a),this._gltf.nodes,a);-1!==s.index;)i.unshift(s),s=s.parent;n[a]=i}for(var l=null,c=0;;++c){if(c>=(i=n[t[0]]).length)return l;s=i[c];for(var u=1;u<t.length;++u)if(c>=(i=n[t[u]]).length||s!==i[c])return l;l=s}},e.prototype._loadBone=function(e,t,n,r){var o=r[e.index];if(o)return o;var a=null;e.index!==t.skeleton&&(e.parent&&-1!==e.parent.index?a=this._loadBone(e.parent,t,n,r):void 0!==t.skeleton&&d.Logger.Warn("/skins/".concat(t.index,"/skeleton: Skeleton node is not a common root")));var i=t.joints.indexOf(e.index);return o=new d.Bone(e.name||"joint".concat(e.index),n,a,this._getNodeMatrix(e),null,null,i),r[e.index]=o,this._postSceneLoadActions.push((function(){o.linkTransformNode(e._babylonTransformNode)})),o},e.prototype._loadSkinInverseBindMatricesDataAsync=function(e,t){if(null==t.inverseBindMatrices)return Promise.resolve(null);var n=ue.Get("".concat(e,"/inverseBindMatrices"),this._gltf.accessors,t.inverseBindMatrices);return this._loadFloatAccessorAsync("/accessors/".concat(n.index),n)},e.prototype._updateBoneMatrices=function(e,t){for(var n=0,r=e.bones;n<r.length;n++){var o=r[n],a=d.Matrix.Identity(),i=o._index;t&&-1!==i&&(d.Matrix.FromArrayToRef(t,16*i,a),a.invertToRef(a));var s=o.getParent();s&&a.multiplyToRef(s.getInvertedAbsoluteTransform(),a),o.updateMatrix(a,!1,!1),o._updateDifferenceMatrix(void 0,!1)}},e.prototype._getNodeMatrix=function(e){return e.matrix?d.Matrix.FromArray(e.matrix):d.Matrix.Compose(e.scale?d.Vector3.FromArray(e.scale):d.Vector3.One(),e.rotation?d.Quaternion.FromArray(e.rotation):d.Quaternion.Identity(),e.translation?d.Vector3.FromArray(e.translation):d.Vector3.Zero())},e.prototype.loadCameraAsync=function(t,n,r){void 0===r&&(r=function(){});var o=this._extensionsLoadCameraAsync(t,n,r);if(o)return o;var a=new Array;this.logOpen("".concat(t," ").concat(n.name||"")),this._babylonScene._blockEntityCollection=!!this._assetContainer;var i=new d.FreeCamera(n.name||"camera".concat(n.index),d.Vector3.Zero(),this._babylonScene,!1);switch(i._parentContainer=this._assetContainer,this._babylonScene._blockEntityCollection=!1,i.ignoreParentScaling=!0,n._babylonCamera=i,i.rotation=new d.Vector3(0,Math.PI,0),n.type){case"perspective":var s=n.perspective;if(!s)throw new Error("".concat(t,": Camera perspective properties are missing"));i.fov=s.yfov,i.minZ=s.znear,i.maxZ=s.zfar||0;break;case"orthographic":if(!n.orthographic)throw new Error("".concat(t,": Camera orthographic properties are missing"));i.mode=d.Camera.ORTHOGRAPHIC_CAMERA,i.orthoLeft=-n.orthographic.xmag,i.orthoRight=n.orthographic.xmag,i.orthoBottom=-n.orthographic.ymag,i.orthoTop=n.orthographic.ymag,i.minZ=n.orthographic.znear,i.maxZ=n.orthographic.zfar;break;default:throw new Error("".concat(t,": Invalid camera type (").concat(n.type,")"))}return e.AddPointerMetadata(i,t),this._parent.onCameraLoadedObservable.notifyObservers(i),r(i),this.logClose(),Promise.all(a).then((function(){return i}))},e.prototype._loadAnimationsAsync=function(){var e=this._gltf.animations;if(!e)return Promise.resolve();for(var t=new Array,n=0;n<e.length;n++){var r=e[n];t.push(this.loadAnimationAsync("/animations/".concat(r.index),r).then((function(e){0===e.targetedAnimations.length&&e.dispose()})))}return Promise.all(t).then((function(){}))},e.prototype.loadAnimationAsync=function(e,t){var n=this._extensionsLoadAnimationAsync(e,t);if(n)return n;this._babylonScene._blockEntityCollection=!!this._assetContainer;var r=new d.AnimationGroup(t.name||"animation".concat(t.index),this._babylonScene);r._parentContainer=this._assetContainer,this._babylonScene._blockEntityCollection=!1,t._babylonAnimationGroup=r;var o=new Array;ue.Assign(t.channels),ue.Assign(t.samplers);for(var a=0,i=t.channels;a<i.length;a++){var s=i[a];o.push(this._loadAnimationChannelAsync("".concat(e,"/channels/").concat(s.index),e,t,s,(function(e,t){e.animations=e.animations||[],e.animations.push(t),r.addTargetedAnimation(t,e)})))}return Promise.all(o).then((function(){return r.normalize(0),r}))},e.prototype._loadAnimationChannelAsync=function(e,t,n,r,o){var a=this._extensionsLoadAnimationChannelAsync(e,t,n,r,o);if(a)return a;if(null==r.target.node)return Promise.resolve();var i,s=ue.Get("".concat(e,"/target/node"),this._gltf.nodes,r.target.node);if("weights"===r.target.path&&!s._numMorphTargets||"weights"!==r.target.path&&!s._babylonTransformNode)return Promise.resolve();switch(r.target.path){case"translation":i=le.translation;break;case"rotation":i=le.rotation;break;case"scale":i=le.scale;break;case"weights":i=le.weights;break;default:throw new Error("".concat(e,"/target/path: Invalid value (").concat(r.target.path,")"))}var l={target:s,properties:i};return this._loadAnimationChannelFromTargetInfoAsync(e,t,n,r,l,o)},e.prototype._loadAnimationChannelFromTargetInfoAsync=function(e,t,n,r,o,a){var i=this.parent.targetFps,s=1/i,l=ue.Get("".concat(e,"/sampler"),n.samplers,r.sampler);return this._loadAnimationSamplerAsync("".concat(t,"/samplers/").concat(r.sampler),l).then((function(e){for(var t=0,l=0,c=o.properties;l<c.length;l++){var u=c[l],h=u.getStride(o.target),f=e.input,p=e.output,_=new Array(f.length),m=0;switch(e.interpolation){case"STEP":for(var y=0;y<f.length;y++){var g=u.getValue(o.target,p,m,1);m+=h,_[y]={frame:f[y]*i,value:g,interpolation:d.AnimationKeyInterpolation.STEP}}break;case"CUBICSPLINE":for(y=0;y<f.length;y++){var v=u.getValue(o.target,p,m,s);m+=h,g=u.getValue(o.target,p,m,1),m+=h;var b=u.getValue(o.target,p,m,s);m+=h,_[y]={frame:f[y]*i,inTangent:v,value:g,outTangent:b}}break;case"LINEAR":for(y=0;y<f.length;y++)g=u.getValue(o.target,p,m,1),m+=h,_[y]={frame:f[y]*i,value:g}}if(m>0){var A="".concat(n.name||"animation".concat(n.index),"_channel").concat(r.index,"_").concat(t);u.buildAnimations(o.target,A,i,_,(function(e,n){++t,a(e,n)}))}}}))},e.prototype._loadAnimationSamplerAsync=function(e,t){if(t._data)return t._data;var n=t.interpolation||"LINEAR";switch(n){case"STEP":case"LINEAR":case"CUBICSPLINE":break;default:throw new Error("".concat(e,"/interpolation: Invalid value (").concat(t.interpolation,")"))}var r=ue.Get("".concat(e,"/input"),this._gltf.accessors,t.input),o=ue.Get("".concat(e,"/output"),this._gltf.accessors,t.output);return t._data=Promise.all([this._loadFloatAccessorAsync("/accessors/".concat(r.index),r),this._loadFloatAccessorAsync("/accessors/".concat(o.index),o)]).then((function(e){var t=e[0],r=e[1];return{input:t,interpolation:n,output:r}})),t._data},e.prototype.loadBufferAsync=function(e,t,n,r){var o=this._extensionsLoadBufferAsync(e,t,n,r);if(o)return o;if(!t._data)if(t.uri)t._data=this.loadUriAsync("".concat(e,"/uri"),t,t.uri);else{if(!this._bin)throw new Error("".concat(e,": Uri is missing or the binary glTF is missing its binary chunk"));t._data=this._bin.readAsync(0,t.byteLength)}return t._data.then((function(t){try{return new Uint8Array(t.buffer,t.byteOffset+n,r)}catch(t){throw new Error("".concat(e,": ").concat(t.message))}}))},e.prototype.loadBufferViewAsync=function(e,t){var n=this._extensionsLoadBufferViewAsync(e,t);if(n)return n;if(t._data)return t._data;var r=ue.Get("".concat(e,"/buffer"),this._gltf.buffers,t.buffer);return t._data=this.loadBufferAsync("/buffers/".concat(r.index),r,t.byteOffset||0,t.byteLength),t._data},e.prototype._loadAccessorAsync=function(t,n,r){var o=this;if(n._data)return n._data;var a=e._GetNumComponents(t,n.type),i=a*d.VertexBuffer.GetTypeByteLength(n.componentType),s=a*n.count;if(null==n.bufferView)n._data=Promise.resolve(new r(s));else{var l=ue.Get("".concat(t,"/bufferView"),this._gltf.bufferViews,n.bufferView);n._data=this.loadBufferViewAsync("/bufferViews/".concat(l.index),l).then((function(o){if(5126!==n.componentType||n.normalized||l.byteStride&&l.byteStride!==i){var c=new r(s);return d.VertexBuffer.ForEach(o,n.byteOffset||0,l.byteStride||i,a,n.componentType,c.length,n.normalized||!1,(function(e,t){c[t]=e})),c}return e._GetTypedArray(t,n.componentType,o,n.byteOffset,s)}))}if(n.sparse){var c=n.sparse;n._data=n._data.then((function(s){var l=s,u=ue.Get("".concat(t,"/sparse/indices/bufferView"),o._gltf.bufferViews,c.indices.bufferView),h=ue.Get("".concat(t,"/sparse/values/bufferView"),o._gltf.bufferViews,c.values.bufferView);return Promise.all([o.loadBufferViewAsync("/bufferViews/".concat(u.index),u),o.loadBufferViewAsync("/bufferViews/".concat(h.index),h)]).then((function(o){var s,u=o[0],h=o[1],f=e._GetTypedArray("".concat(t,"/sparse/indices"),c.indices.componentType,u,c.indices.byteOffset,c.count),p=a*c.count;if(5126!==n.componentType||n.normalized){var _=e._GetTypedArray("".concat(t,"/sparse/values"),n.componentType,h,c.values.byteOffset,p);s=new r(p),d.VertexBuffer.ForEach(_,0,i,a,n.componentType,s.length,n.normalized||!1,(function(e,t){s[t]=e}))}else s=e._GetTypedArray("".concat(t,"/sparse/values"),n.componentType,h,c.values.byteOffset,p);for(var m=0,y=0;y<f.length;y++)for(var g=f[y]*a,v=0;v<a;v++)l[g++]=s[m++];return l}))}))}return n._data},e.prototype._loadFloatAccessorAsync=function(e,t){return this._loadAccessorAsync(e,t,Float32Array)},e.prototype._loadIndicesAccessorAsync=function(t,n){if("SCALAR"!==n.type)throw new Error("".concat(t,"/type: Invalid value ").concat(n.type));if(5121!==n.componentType&&5123!==n.componentType&&5125!==n.componentType)throw new Error("".concat(t,"/componentType: Invalid value ").concat(n.componentType));if(n._data)return n._data;if(n.sparse){var r=e._GetTypedArrayConstructor("".concat(t,"/componentType"),n.componentType);n._data=this._loadAccessorAsync(t,n,r)}else{var o=ue.Get("".concat(t,"/bufferView"),this._gltf.bufferViews,n.bufferView);n._data=this.loadBufferViewAsync("/bufferViews/".concat(o.index),o).then((function(r){return e._GetTypedArray(t,n.componentType,r,n.byteOffset,n.count)}))}return n._data},e.prototype._loadVertexBufferViewAsync=function(e){if(e._babylonBuffer)return e._babylonBuffer;var t=this._babylonScene.getEngine();return e._babylonBuffer=this.loadBufferViewAsync("/bufferViews/".concat(e.index),e).then((function(e){return new d.Buffer(t,e,!1)})),e._babylonBuffer},e.prototype._loadVertexAccessorAsync=function(t,n,r){var o;if(null===(o=n._babylonVertexBuffer)||void 0===o?void 0:o[r])return n._babylonVertexBuffer[r];n._babylonVertexBuffer||(n._babylonVertexBuffer={});var a=this._babylonScene.getEngine();if(n.sparse)n._babylonVertexBuffer[r]=this._loadFloatAccessorAsync(t,n).then((function(e){return new d.VertexBuffer(a,e,r,!1)}));else if(r===d.VertexBuffer.MatricesIndicesKind||r===d.VertexBuffer.MatricesIndicesExtraKind)n._babylonVertexBuffer[r]=this._loadFloatAccessorAsync(t,n).then((function(e){return new d.VertexBuffer(a,e,r,!1)}));else{var i=ue.Get("".concat(t,"/bufferView"),this._gltf.bufferViews,n.bufferView);n._babylonVertexBuffer[r]=this._loadVertexBufferViewAsync(i).then((function(o){var s=e._GetNumComponents(t,n.type);return new d.VertexBuffer(a,o,r,!1,!1,i.byteStride,!1,n.byteOffset,s,n.componentType,n.normalized,!0,1,!0)}))}return n._babylonVertexBuffer[r]},e.prototype._loadMaterialMetallicRoughnessPropertiesAsync=function(e,t,n){if(!(n instanceof d.PBRMaterial))throw new Error("".concat(e,": Material type not supported"));var r=new Array;return t&&(t.baseColorFactor?(n.albedoColor=d.Color3.FromArray(t.baseColorFactor),n.alpha=t.baseColorFactor[3]):n.albedoColor=d.Color3.White(),n.metallic=null==t.metallicFactor?1:t.metallicFactor,n.roughness=null==t.roughnessFactor?1:t.roughnessFactor,t.baseColorTexture&&r.push(this.loadTextureInfoAsync("".concat(e,"/baseColorTexture"),t.baseColorTexture,(function(e){e.name="".concat(n.name," (Base Color)"),n.albedoTexture=e}))),t.metallicRoughnessTexture&&(t.metallicRoughnessTexture.nonColorData=!0,r.push(this.loadTextureInfoAsync("".concat(e,"/metallicRoughnessTexture"),t.metallicRoughnessTexture,(function(e){e.name="".concat(n.name," (Metallic Roughness)"),n.metallicTexture=e}))),n.useMetallnessFromMetallicTextureBlue=!0,n.useRoughnessFromMetallicTextureGreen=!0,n.useRoughnessFromMetallicTextureAlpha=!1)),Promise.all(r).then((function(){}))},e.prototype._loadMaterialAsync=function(t,n,r,o,a){void 0===a&&(a=function(){});var i=this._extensionsLoadMaterialAsync(t,n,r,o,a);if(i)return i;n._data=n._data||{};var s=n._data[o];if(!s){this.logOpen("".concat(t," ").concat(n.name||""));var l=this.createMaterial(t,n,o);s={babylonMaterial:l,babylonMeshes:[],promise:this.loadMaterialPropertiesAsync(t,n,l)},n._data[o]=s,e.AddPointerMetadata(l,t),this._parent.onMaterialLoadedObservable.notifyObservers(l),this.logClose()}return r&&(s.babylonMeshes.push(r),r.onDisposeObservable.addOnce((function(){var e=s.babylonMeshes.indexOf(r);-1!==e&&s.babylonMeshes.splice(e,1)}))),a(s.babylonMaterial),s.promise.then((function(){return s.babylonMaterial}))},e.prototype._createDefaultMaterial=function(e,t){this._babylonScene._blockEntityCollection=!!this._assetContainer;var n=new d.PBRMaterial(e,this._babylonScene);return n._parentContainer=this._assetContainer,this._babylonScene._blockEntityCollection=!1,n.fillMode=t,n.enableSpecularAntiAliasing=!0,n.useRadianceOverAlpha=!this._parent.transparencyAsCoverage,n.useSpecularOverAlpha=!this._parent.transparencyAsCoverage,n.transparencyMode=d.PBRMaterial.PBRMATERIAL_OPAQUE,n.metallic=1,n.roughness=1,n},e.prototype.createMaterial=function(e,t,n){var r=this._extensionsCreateMaterial(e,t,n);if(r)return r;var o=t.name||"material".concat(t.index);return this._createDefaultMaterial(o,n)},e.prototype.loadMaterialPropertiesAsync=function(e,t,n){var r=this._extensionsLoadMaterialPropertiesAsync(e,t,n);if(r)return r;var o=new Array;return o.push(this.loadMaterialBasePropertiesAsync(e,t,n)),t.pbrMetallicRoughness&&o.push(this._loadMaterialMetallicRoughnessPropertiesAsync("".concat(e,"/pbrMetallicRoughness"),t.pbrMetallicRoughness,n)),this.loadMaterialAlphaProperties(e,t,n),Promise.all(o).then((function(){}))},e.prototype.loadMaterialBasePropertiesAsync=function(e,t,n){if(!(n instanceof d.PBRMaterial))throw new Error("".concat(e,": Material type not supported"));var r=new Array;return n.emissiveColor=t.emissiveFactor?d.Color3.FromArray(t.emissiveFactor):new d.Color3(0,0,0),t.doubleSided&&(n.backFaceCulling=!1,n.twoSidedLighting=!0),t.normalTexture&&(t.normalTexture.nonColorData=!0,r.push(this.loadTextureInfoAsync("".concat(e,"/normalTexture"),t.normalTexture,(function(e){e.name="".concat(n.name," (Normal)"),n.bumpTexture=e}))),n.invertNormalMapX=!this._babylonScene.useRightHandedSystem,n.invertNormalMapY=this._babylonScene.useRightHandedSystem,null!=t.normalTexture.scale&&n.bumpTexture&&(n.bumpTexture.level=t.normalTexture.scale),n.forceIrradianceInFragment=!0),t.occlusionTexture&&(t.occlusionTexture.nonColorData=!0,r.push(this.loadTextureInfoAsync("".concat(e,"/occlusionTexture"),t.occlusionTexture,(function(e){e.name="".concat(n.name," (Occlusion)"),n.ambientTexture=e}))),n.useAmbientInGrayScale=!0,null!=t.occlusionTexture.strength&&(n.ambientTextureStrength=t.occlusionTexture.strength)),t.emissiveTexture&&r.push(this.loadTextureInfoAsync("".concat(e,"/emissiveTexture"),t.emissiveTexture,(function(e){e.name="".concat(n.name," (Emissive)"),n.emissiveTexture=e}))),Promise.all(r).then((function(){}))},e.prototype.loadMaterialAlphaProperties=function(e,t,n){if(!(n instanceof d.PBRMaterial))throw new Error("".concat(e,": Material type not supported"));switch(t.alphaMode||"OPAQUE"){case"OPAQUE":n.transparencyMode=d.PBRMaterial.PBRMATERIAL_OPAQUE;break;case"MASK":n.transparencyMode=d.PBRMaterial.PBRMATERIAL_ALPHATEST,n.alphaCutOff=null==t.alphaCutoff?.5:t.alphaCutoff,n.albedoTexture&&(n.albedoTexture.hasAlpha=!0);break;case"BLEND":n.transparencyMode=d.PBRMaterial.PBRMATERIAL_ALPHABLEND,n.albedoTexture&&(n.albedoTexture.hasAlpha=!0,n.useAlphaFromAlbedoTexture=!0);break;default:throw new Error("".concat(e,"/alphaMode: Invalid value (").concat(t.alphaMode,")"))}},e.prototype.loadTextureInfoAsync=function(t,n,r){var o=this;void 0===r&&(r=function(){});var a=this._extensionsLoadTextureInfoAsync(t,n,r);if(a)return a;if(this.logOpen("".concat(t)),n.texCoord>=6)throw new Error("".concat(t,"/texCoord: Invalid value (").concat(n.texCoord,")"));var i=ue.Get("".concat(t,"/index"),this._gltf.textures,n.index);i._textureInfo=n;var s=this._loadTextureAsync("/textures/".concat(n.index),i,(function(a){a.coordinatesIndex=n.texCoord||0,e.AddPointerMetadata(a,t),o._parent.onTextureLoadedObservable.notifyObservers(a),r(a)}));return this.logClose(),s},e.prototype._loadTextureAsync=function(t,n,r){void 0===r&&(r=function(){});var o=this._extensionsLoadTextureAsync(t,n,r);if(o)return o;this.logOpen("".concat(t," ").concat(n.name||""));var a=null==n.sampler?e.DefaultSampler:ue.Get("".concat(t,"/sampler"),this._gltf.samplers,n.sampler),i=ue.Get("".concat(t,"/source"),this._gltf.images,n.source),s=this._createTextureAsync(t,a,i,r,void 0,!n._textureInfo.nonColorData);return this.logClose(),s},e.prototype._createTextureAsync=function(e,t,n,r,o,a){var i=this;void 0===r&&(r=function(){});var s=this._loadSampler("/samplers/".concat(t.index),t),l=new Array,c=new d.Deferred;this._babylonScene._blockEntityCollection=!!this._assetContainer;var u={noMipmap:s.noMipMaps,invertY:!1,samplingMode:s.samplingMode,onLoad:function(){i._disposed||c.resolve()},onError:function(t,n){i._disposed||c.reject(new Error("".concat(e,": ").concat(n&&n.message?n.message:t||"Failed to load texture")))},mimeType:n.mimeType,loaderOptions:o,useSRGBBuffer:!!a&&this._parent.useSRGBBuffers},h=new d.Texture(null,this._babylonScene,u);return h._parentContainer=this._assetContainer,this._babylonScene._blockEntityCollection=!1,l.push(c.promise),l.push(this.loadImageAsync("/images/".concat(n.index),n).then((function(e){var t=n.uri||"".concat(i._fileName,"#image").concat(n.index),r="data:".concat(i._uniqueRootUrl).concat(t);h.updateURL(r,e)}))),h.wrapU=s.wrapU,h.wrapV=s.wrapV,r(h),Promise.all(l).then((function(){return h}))},e.prototype._loadSampler=function(t,n){return n._data||(n._data={noMipMaps:9728===n.minFilter||9729===n.minFilter,samplingMode:e._GetTextureSamplingMode(t,n),wrapU:e._GetTextureWrapMode("".concat(t,"/wrapS"),n.wrapS),wrapV:e._GetTextureWrapMode("".concat(t,"/wrapT"),n.wrapT)}),n._data},e.prototype.loadImageAsync=function(e,t){if(!t._data){if(this.logOpen("".concat(e," ").concat(t.name||"")),t.uri)t._data=this.loadUriAsync("".concat(e,"/uri"),t,t.uri);else{var n=ue.Get("".concat(e,"/bufferView"),this._gltf.bufferViews,t.bufferView);t._data=this.loadBufferViewAsync("/bufferViews/".concat(n.index),n)}this.logClose()}return t._data},e.prototype.loadUriAsync=function(t,n,r){var o=this,a=this._extensionsLoadUriAsync(t,n,r);if(a)return a;if(!e._ValidateUri(r))throw new Error("".concat(t,": '").concat(r,"' is invalid"));if((0,d.IsBase64DataUrl)(r)){var i=new Uint8Array((0,d.DecodeBase64UrlToBinary)(r));return this.log("".concat(t,": Decoded ").concat(r.substr(0,64),"... (").concat(i.length," bytes)")),Promise.resolve(i)}return this.log("".concat(t,": Loading ").concat(r)),this._parent.preprocessUrlAsync(this._rootUrl+r).then((function(e){return new Promise((function(n,a){o._parent._loadFile(o._babylonScene,e,(function(e){o._disposed||(o.log("".concat(t,": Loaded ").concat(r," (").concat(e.byteLength," bytes)")),n(new Uint8Array(e)))}),!0,(function(e){a(new d.LoadFileError("".concat(t,": Failed to load '").concat(r,"'").concat(e?": "+e.status+" "+e.statusText:""),e))}))}))}))},e.AddPointerMetadata=function(e,t){e.metadata=e.metadata||{};var n=e._internalMetadata=e._internalMetadata||{},r=n.gltf=n.gltf||{};(r.pointers=r.pointers||[]).push(t)},e._GetTextureWrapMode=function(e,t){switch(t=null==t?10497:t){case 33071:return d.Texture.CLAMP_ADDRESSMODE;case 33648:return d.Texture.MIRROR_ADDRESSMODE;case 10497:return d.Texture.WRAP_ADDRESSMODE;default:return d.Logger.Warn("".concat(e,": Invalid value (").concat(t,")")),d.Texture.WRAP_ADDRESSMODE}},e._GetTextureSamplingMode=function(e,t){var n=null==t.magFilter?9729:t.magFilter,r=null==t.minFilter?9987:t.minFilter;if(9729===n)switch(r){case 9728:return d.Texture.LINEAR_NEAREST;case 9729:return d.Texture.LINEAR_LINEAR;case 9984:return d.Texture.LINEAR_NEAREST_MIPNEAREST;case 9985:return d.Texture.LINEAR_LINEAR_MIPNEAREST;case 9986:return d.Texture.LINEAR_NEAREST_MIPLINEAR;case 9987:return d.Texture.LINEAR_LINEAR_MIPLINEAR;default:return d.Logger.Warn("".concat(e,"/minFilter: Invalid value (").concat(r,")")),d.Texture.LINEAR_LINEAR_MIPLINEAR}else switch(9728!==n&&d.Logger.Warn("".concat(e,"/magFilter: Invalid value (").concat(n,")")),r){case 9728:return d.Texture.NEAREST_NEAREST;case 9729:return d.Texture.NEAREST_LINEAR;case 9984:return d.Texture.NEAREST_NEAREST_MIPNEAREST;case 9985:return d.Texture.NEAREST_LINEAR_MIPNEAREST;case 9986:return d.Texture.NEAREST_NEAREST_MIPLINEAR;case 9987:return d.Texture.NEAREST_LINEAR_MIPLINEAR;default:return d.Logger.Warn("".concat(e,"/minFilter: Invalid value (").concat(r,")")),d.Texture.NEAREST_NEAREST_MIPNEAREST}},e._GetTypedArrayConstructor=function(e,t){switch(t){case 5120:return Int8Array;case 5121:return Uint8Array;case 5122:return Int16Array;case 5123:return Uint16Array;case 5125:return Uint32Array;case 5126:return Float32Array;default:throw new Error("".concat(e,": Invalid component type ").concat(t))}},e._GetTypedArray=function(t,n,r,o,a){var i=r.buffer;o=r.byteOffset+(o||0);var s=e._GetTypedArrayConstructor("".concat(t,"/componentType"),n),l=d.VertexBuffer.GetTypeByteLength(n);return o%l!=0?(d.Logger.Warn("".concat(t,": Copying buffer as byte offset (").concat(o,") is not a multiple of component type byte length (").concat(l,")")),new s(i.slice(o,o+a*l),0)):new s(i,o,a)},e._GetNumComponents=function(e,t){switch(t){case"SCALAR":return 1;case"VEC2":return 2;case"VEC3":return 3;case"VEC4":case"MAT2":return 4;case"MAT3":return 9;case"MAT4":return 16}throw new Error("".concat(e,": Invalid type (").concat(t,")"))},e._ValidateUri=function(e){return d.Tools.IsBase64(e)||-1===e.indexOf("..")},e._GetDrawMode=function(e,t){switch(null==t&&(t=4),t){case 0:return d.Material.PointListDrawMode;case 1:return d.Material.LineListDrawMode;case 2:return d.Material.LineLoopDrawMode;case 3:return d.Material.LineStripDrawMode;case 4:return d.Material.TriangleFillMode;case 5:return d.Material.TriangleStripDrawMode;case 6:return d.Material.TriangleFanDrawMode}throw new Error("".concat(e,": Invalid mesh primitive mode (").concat(t,")"))},e.prototype._compileMaterialsAsync=function(){var e=this;this._parent._startPerformanceCounter("Compile materials");var t=new Array;if(this._gltf.materials)for(var n=0,r=this._gltf.materials;n<r.length;n++){var o=r[n];if(o._data)for(var a in o._data)for(var i=o._data[a],s=0,l=i.babylonMeshes;s<l.length;s++){var c=l[s];c.computeWorldMatrix(!0);var u=i.babylonMaterial;t.push(u.forceCompilationAsync(c)),t.push(u.forceCompilationAsync(c,{useInstances:!0})),this._parent.useClipPlane&&(t.push(u.forceCompilationAsync(c,{clipPlane:!0})),t.push(u.forceCompilationAsync(c,{clipPlane:!0,useInstances:!0})))}}return Promise.all(t).then((function(){e._parent._endPerformanceCounter("Compile materials")}))},e.prototype._compileShadowGeneratorsAsync=function(){var e=this;this._parent._startPerformanceCounter("Compile shadow generators");for(var t=new Array,n=0,r=this._babylonScene.lights;n<r.length;n++){var o=r[n].getShadowGenerator();o&&t.push(o.forceCompilationAsync())}return Promise.all(t).then((function(){e._parent._endPerformanceCounter("Compile shadow generators")}))},e.prototype._forEachExtensions=function(e){for(var t=0,n=this._extensions;t<n.length;t++){var r=n[t];r.enabled&&e(r)}},e.prototype._applyExtensions=function(e,t,n){for(var r=0,o=this._extensions;r<o.length;r++){var a=o[r];if(a.enabled){var i="".concat(a.name,".").concat(t),s=e;s._activeLoaderExtensionFunctions=s._activeLoaderExtensionFunctions||{};var l=s._activeLoaderExtensionFunctions;if(!l[i]){l[i]=!0;try{var c=n(a);if(c)return c}finally{delete l[i]}}}}return null},e.prototype._extensionsOnLoading=function(){this._forEachExtensions((function(e){return e.onLoading&&e.onLoading()}))},e.prototype._extensionsOnReady=function(){this._forEachExtensions((function(e){return e.onReady&&e.onReady()}))},e.prototype._extensionsLoadSceneAsync=function(e,t){return this._applyExtensions(t,"loadScene",(function(n){return n.loadSceneAsync&&n.loadSceneAsync(e,t)}))},e.prototype._extensionsLoadNodeAsync=function(e,t,n){return this._applyExtensions(t,"loadNode",(function(r){return r.loadNodeAsync&&r.loadNodeAsync(e,t,n)}))},e.prototype._extensionsLoadCameraAsync=function(e,t,n){return this._applyExtensions(t,"loadCamera",(function(r){return r.loadCameraAsync&&r.loadCameraAsync(e,t,n)}))},e.prototype._extensionsLoadVertexDataAsync=function(e,t,n){return this._applyExtensions(t,"loadVertexData",(function(r){return r._loadVertexDataAsync&&r._loadVertexDataAsync(e,t,n)}))},e.prototype._extensionsLoadMeshPrimitiveAsync=function(e,t,n,r,o,a){return this._applyExtensions(o,"loadMeshPrimitive",(function(i){return i._loadMeshPrimitiveAsync&&i._loadMeshPrimitiveAsync(e,t,n,r,o,a)}))},e.prototype._extensionsLoadMaterialAsync=function(e,t,n,r,o){return this._applyExtensions(t,"loadMaterial",(function(a){return a._loadMaterialAsync&&a._loadMaterialAsync(e,t,n,r,o)}))},e.prototype._extensionsCreateMaterial=function(e,t,n){return this._applyExtensions(t,"createMaterial",(function(r){return r.createMaterial&&r.createMaterial(e,t,n)}))},e.prototype._extensionsLoadMaterialPropertiesAsync=function(e,t,n){return this._applyExtensions(t,"loadMaterialProperties",(function(r){return r.loadMaterialPropertiesAsync&&r.loadMaterialPropertiesAsync(e,t,n)}))},e.prototype._extensionsLoadTextureInfoAsync=function(e,t,n){return this._applyExtensions(t,"loadTextureInfo",(function(r){return r.loadTextureInfoAsync&&r.loadTextureInfoAsync(e,t,n)}))},e.prototype._extensionsLoadTextureAsync=function(e,t,n){return this._applyExtensions(t,"loadTexture",(function(r){return r._loadTextureAsync&&r._loadTextureAsync(e,t,n)}))},e.prototype._extensionsLoadAnimationAsync=function(e,t){return this._applyExtensions(t,"loadAnimation",(function(n){return n.loadAnimationAsync&&n.loadAnimationAsync(e,t)}))},e.prototype._extensionsLoadAnimationChannelAsync=function(e,t,n,r,o){return this._applyExtensions(n,"loadAnimationChannel",(function(a){return a._loadAnimationChannelAsync&&a._loadAnimationChannelAsync(e,t,n,r,o)}))},e.prototype._extensionsLoadSkinAsync=function(e,t,n){return this._applyExtensions(n,"loadSkin",(function(r){return r._loadSkinAsync&&r._loadSkinAsync(e,t,n)}))},e.prototype._extensionsLoadUriAsync=function(e,t,n){return this._applyExtensions(t,"loadUri",(function(r){return r._loadUriAsync&&r._loadUriAsync(e,t,n)}))},e.prototype._extensionsLoadBufferViewAsync=function(e,t){return this._applyExtensions(t,"loadBufferView",(function(n){return n.loadBufferViewAsync&&n.loadBufferViewAsync(e,t)}))},e.prototype._extensionsLoadBufferAsync=function(e,t,n,r){return this._applyExtensions(t,"loadBuffer",(function(o){return o.loadBufferAsync&&o.loadBufferAsync(e,t,n,r)}))},e.LoadExtensionAsync=function(e,t,n,r){if(!t.extensions)return null;var o=t.extensions[n];return o?r("".concat(e,"/extensions/").concat(n),o):null},e.LoadExtraAsync=function(e,t,n,r){if(!t.extras)return null;var o=t.extras[n];return o?r("".concat(e,"/extras/").concat(n),o):null},e.prototype.isExtensionUsed=function(e){return!!this._gltf.extensionsUsed&&-1!==this._gltf.extensionsUsed.indexOf(e)},e.prototype.logOpen=function(e){this._parent._logOpen(e)},e.prototype.logClose=function(){this._parent._logClose()},e.prototype.log=function(e){this._parent._log(e)},e.prototype.startPerformanceCounter=function(e){this._parent._startPerformanceCounter(e)},e.prototype.endPerformanceCounter=function(e){this._parent._endPerformanceCounter(e)},e._RegisteredExtensions={},e.DefaultSampler={index:-1},e}();v._CreateGLTF2Loader=function(e){return new de(e)};var he="EXT_lights_image_based",fe=function(){function e(e){this.name=he,this._loader=e,this.enabled=this._loader.isExtensionUsed(he)}return e.prototype.dispose=function(){this._loader=null,delete this._lights},e.prototype.onLoading=function(){var e=this._loader.gltf.extensions;if(e&&e[this.name]){var t=e[this.name];this._lights=t.lights}},e.prototype.loadSceneAsync=function(e,t){var n=this;return de.LoadExtensionAsync(e,t,this.name,(function(r,o){var a=new Array;a.push(n._loader.loadSceneAsync(e,t)),n._loader.logOpen("".concat(r));var i=ue.Get("".concat(r,"/light"),n._lights,o.light);return a.push(n._loadLightAsync("/extensions/".concat(n.name,"/lights/").concat(o.light),i).then((function(e){n._loader.babylonScene.environmentTexture=e}))),n._loader.logClose(),Promise.all(a).then((function(){}))}))},e.prototype._loadLightAsync=function(e,t){var n=this;if(!t._loaded){var r=new Array;this._loader.logOpen("".concat(e));for(var o=new Array(t.specularImages.length),a=function(n){var a=t.specularImages[n];o[n]=new Array(a.length);for(var s=function(t){var s="".concat(e,"/specularImages/").concat(n,"/").concat(t);i._loader.logOpen("".concat(s));var l=a[t],c=ue.Get(s,i._loader.gltf.images,l);r.push(i._loader.loadImageAsync("/images/".concat(l),c).then((function(e){o[n][t]=e}))),i._loader.logClose()},l=0;l<a.length;l++)s(l)},i=this,s=0;s<t.specularImages.length;s++)a(s);this._loader.logClose(),t._loaded=Promise.all(r).then((function(){var r=new d.RawCubeTexture(n._loader.babylonScene,null,t.specularImageSize);if(r.name=t.name||"environment",t._babylonTexture=r,null!=t.intensity&&(r.level=t.intensity),t.rotation){var a=d.Quaternion.FromArray(t.rotation);n._loader.babylonScene.useRightHandedSystem||(a=d.Quaternion.Inverse(a)),d.Matrix.FromQuaternionToRef(a,r.getReflectionTextureMatrix())}if(!t.irradianceCoefficients)throw new Error("".concat(e,": Irradiance coefficients are missing"));var i=d.SphericalHarmonics.FromArray(t.irradianceCoefficients);i.scaleInPlace(t.intensity),i.convertIrradianceToLambertianRadiance();var s=d.SphericalPolynomial.FromHarmonics(i),l=(o.length-1)/d.Scalar.Log2(t.specularImageSize);return r.updateRGBDAsync(o,s,l)}))}return t._loaded.then((function(){return t._babylonTexture}))},e}();de.RegisterExtension(he,(function(e){return new fe(e)}));var pe="EXT_mesh_gpu_instancing",_e=function(){function e(e){this.name=pe,this._loader=e,this.enabled=this._loader.isExtensionUsed(pe)}return e.prototype.dispose=function(){this._loader=null},e.prototype.loadNodeAsync=function(e,t,n){var r=this;return de.LoadExtensionAsync(e,t,this.name,(function(e,o){r._loader._disableInstancedMesh++;var a=r._loader.loadNodeAsync("/nodes/".concat(t.index),t,n);if(r._loader._disableInstancedMesh--,!t._primitiveBabylonMeshes)return a;var i=new Array,s=0,l=function(t){if(null!=o.attributes[t]){var n=ue.Get("".concat(e,"/attributes/").concat(t),r._loader.gltf.accessors,o.attributes[t]);if(i.push(r._loader._loadFloatAccessorAsync("/accessors/".concat(n.bufferView),n)),0===s)s=n.count;else if(s!==n.count)throw new Error("".concat(e,"/attributes: Instance buffer accessors do not have the same count."))}else i.push(Promise.resolve(null))};return l("TRANSLATION"),l("ROTATION"),l("SCALE"),a.then((function(e){return Promise.all(i).then((function(n){var r=n[0],o=n[1],a=n[2],i=new Float32Array(16*s);d.TmpVectors.Vector3[0].copyFromFloats(0,0,0),d.TmpVectors.Quaternion[0].copyFromFloats(0,0,0,1),d.TmpVectors.Vector3[1].copyFromFloats(1,1,1);for(var l=0;l<s;++l)r&&d.Vector3.FromArrayToRef(r,3*l,d.TmpVectors.Vector3[0]),o&&d.Quaternion.FromArrayToRef(o,4*l,d.TmpVectors.Quaternion[0]),a&&d.Vector3.FromArrayToRef(a,3*l,d.TmpVectors.Vector3[1]),d.Matrix.ComposeToRef(d.TmpVectors.Vector3[1],d.TmpVectors.Quaternion[0],d.TmpVectors.Vector3[0],d.TmpVectors.Matrix[0]),d.TmpVectors.Matrix[0].copyToArray(i,16*l);for(var c=0,u=t._primitiveBabylonMeshes;c<u.length;c++)u[c].thinInstanceSetBuffer("matrix",i,16,!0);return e}))}))}))},e}();de.RegisterExtension(pe,(function(e){return new _e(e)}));var me="EXT_meshopt_compression",ye=function(){function e(e){this.name=me,this.enabled=e.isExtensionUsed(me),this._loader=e}return e.prototype.dispose=function(){this._loader=null},e.prototype.loadBufferViewAsync=function(e,t){var n=this;return de.LoadExtensionAsync(e,t,this.name,(function(r,o){var a=t;if(a._meshOptData)return a._meshOptData;var i=ue.Get("".concat(e,"/buffer"),n._loader.gltf.buffers,o.buffer);return a._meshOptData=n._loader.loadBufferAsync("/buffers/".concat(i.index),i,o.byteOffset||0,o.byteLength).then((function(e){return d.MeshoptCompression.Default.decodeGltfBufferAsync(e,o.count,o.byteStride,o.mode,o.filter)})),a._meshOptData}))},e}();de.RegisterExtension(me,(function(e){return new ye(e)}));var ge="EXT_texture_webp",ve=function(){function e(e){this.name=ge,this._loader=e,this.enabled=e.isExtensionUsed(ge)}return e.prototype.dispose=function(){this._loader=null},e.prototype._loadTextureAsync=function(e,t,n){var r=this;return de.LoadExtensionAsync(e,t,this.name,(function(o,a){var i=null==t.sampler?de.DefaultSampler:ue.Get("".concat(e,"/sampler"),r._loader.gltf.samplers,t.sampler),s=ue.Get("".concat(o,"/source"),r._loader.gltf.images,a.source);return r._loader._createTextureAsync(e,i,s,(function(e){n(e)}),void 0,!t._textureInfo.nonColorData)}))},e}();de.RegisterExtension(ge,(function(e){return new ve(e)}));var be="KHR_draco_mesh_compression",Ae=function(){function e(e){this.name=be,this._loader=e,this.enabled=d.DracoCompression.DecoderAvailable&&this._loader.isExtensionUsed(be)}return e.prototype.dispose=function(){delete this.dracoCompression,this._loader=null},e.prototype._loadVertexDataAsync=function(e,t,n){var r=this;return de.LoadExtensionAsync(e,t,this.name,(function(o,a){if(null!=t.mode){if(5!==t.mode&&4!==t.mode)throw new Error("".concat(e,": Unsupported mode ").concat(t.mode));if(5===t.mode)throw new Error("".concat(e,": Mode ").concat(t.mode," is not currently supported"))}var i={},s={},l=function(o,l){var c=a.attributes[o];if(void 0!==c&&void 0!==t.attributes[o]){i[l]=c;var u=ue.Get("".concat(e,"/attributes/").concat(o),r._loader.gltf.accessors,t.attributes[o]);if(u.normalized&&5126!==u.componentType){var d=1;switch(u.componentType){case 5120:d=127;break;case 5121:d=255;break;case 5122:d=32767;break;case 5123:d=65535}s[l]=d}n._delayInfo=n._delayInfo||[],-1===n._delayInfo.indexOf(l)&&n._delayInfo.push(l)}};l("POSITION",d.VertexBuffer.PositionKind),l("NORMAL",d.VertexBuffer.NormalKind),l("TANGENT",d.VertexBuffer.TangentKind),l("TEXCOORD_0",d.VertexBuffer.UVKind),l("TEXCOORD_1",d.VertexBuffer.UV2Kind),l("TEXCOORD_2",d.VertexBuffer.UV3Kind),l("TEXCOORD_3",d.VertexBuffer.UV4Kind),l("TEXCOORD_4",d.VertexBuffer.UV5Kind),l("TEXCOORD_5",d.VertexBuffer.UV6Kind),l("JOINTS_0",d.VertexBuffer.MatricesIndicesKind),l("WEIGHTS_0",d.VertexBuffer.MatricesWeightsKind),l("COLOR_0",d.VertexBuffer.ColorKind);var c=ue.Get(o,r._loader.gltf.bufferViews,a.bufferView);return c._dracoBabylonGeometry||(c._dracoBabylonGeometry=r._loader.loadBufferViewAsync("/bufferViews/".concat(c.index),c).then((function(t){return(r.dracoCompression||d.DracoCompression.Default).decodeMeshAsync(t,i,s).then((function(e){var t=new d.Geometry(n.name,r._loader.babylonScene);return e.applyToGeometry(t),t})).catch((function(t){throw new Error("".concat(e,": ").concat(t.message))}))}))),c._dracoBabylonGeometry}))},e}();de.RegisterExtension(be,(function(e){return new Ae(e)}));var Te="KHR_lights_punctual",xe=function(){function e(e){this.name=Te,this._loader=e,this.enabled=this._loader.isExtensionUsed(Te)}return e.prototype.dispose=function(){this._loader=null,delete this._lights},e.prototype.onLoading=function(){var e=this._loader.gltf.extensions;if(e&&e[this.name]){var t=e[this.name];this._lights=t.lights,ue.Assign(this._lights)}},e.prototype.loadNodeAsync=function(e,t,n){var r=this;return de.LoadExtensionAsync(e,t,this.name,(function(o,a){return r._loader.loadNodeAsync(e,t,(function(e){var t,i=ue.Get(o,r._lights,a.light),s=i.name||e.name;switch(r._loader.babylonScene._blockEntityCollection=!!r._loader._assetContainer,i.type){case"directional":t=new d.DirectionalLight(s,d.Vector3.Backward(),r._loader.babylonScene);break;case"point":t=new d.PointLight(s,d.Vector3.Zero(),r._loader.babylonScene);break;case"spot":var l=new d.SpotLight(s,d.Vector3.Zero(),d.Vector3.Backward(),0,1,r._loader.babylonScene);l.angle=2*(i.spot&&i.spot.outerConeAngle||Math.PI/4),l.innerAngle=2*(i.spot&&i.spot.innerConeAngle||0),t=l;break;default:throw r._loader.babylonScene._blockEntityCollection=!1,new Error("".concat(o,": Invalid light type (").concat(i.type,")"))}t._parentContainer=r._loader._assetContainer,r._loader.babylonScene._blockEntityCollection=!1,i._babylonLight=t,t.falloffType=d.Light.FALLOFF_GLTF,t.diffuse=i.color?d.Color3.FromArray(i.color):d.Color3.White(),t.intensity=null==i.intensity?1:i.intensity,t.range=null==i.range?Number.MAX_VALUE:i.range,t.parent=e,r._loader._babylonLights.push(t),de.AddPointerMetadata(t,o),n(e)}))}))},e}();de.RegisterExtension(Te,(function(e){return new xe(e)}));var Ee="KHR_materials_pbrSpecularGlossiness",Oe=function(){function e(e){this.name=Ee,this.order=200,this._loader=e,this.enabled=this._loader.isExtensionUsed(Ee)}return e.prototype.dispose=function(){this._loader=null},e.prototype.loadMaterialPropertiesAsync=function(e,t,n){var r=this;return de.LoadExtensionAsync(e,t,this.name,(function(o,a){var i=new Array;return i.push(r._loader.loadMaterialBasePropertiesAsync(e,t,n)),i.push(r._loadSpecularGlossinessPropertiesAsync(o,t,a,n)),r._loader.loadMaterialAlphaProperties(e,t,n),Promise.all(i).then((function(){}))}))},e.prototype._loadSpecularGlossinessPropertiesAsync=function(e,t,n,r){if(!(r instanceof d.PBRMaterial))throw new Error("".concat(e,": Material type not supported"));var o=new Array;return r.metallic=null,r.roughness=null,n.diffuseFactor?(r.albedoColor=d.Color3.FromArray(n.diffuseFactor),r.alpha=n.diffuseFactor[3]):r.albedoColor=d.Color3.White(),r.reflectivityColor=n.specularFactor?d.Color3.FromArray(n.specularFactor):d.Color3.White(),r.microSurface=null==n.glossinessFactor?1:n.glossinessFactor,n.diffuseTexture&&o.push(this._loader.loadTextureInfoAsync("".concat(e,"/diffuseTexture"),n.diffuseTexture,(function(e){e.name="".concat(r.name," (Diffuse)"),r.albedoTexture=e}))),n.specularGlossinessTexture&&(o.push(this._loader.loadTextureInfoAsync("".concat(e,"/specularGlossinessTexture"),n.specularGlossinessTexture,(function(e){e.name="".concat(r.name," (Specular Glossiness)"),r.reflectivityTexture=e,r.reflectivityTexture.hasAlpha=!0}))),r.useMicroSurfaceFromReflectivityMapAlpha=!0),Promise.all(o).then((function(){}))},e}();de.RegisterExtension(Ee,(function(e){return new Oe(e)}));var Me="KHR_materials_unlit",Le=function(){function e(e){this.name=Me,this.order=210,this._loader=e,this.enabled=this._loader.isExtensionUsed(Me)}return e.prototype.dispose=function(){this._loader=null},e.prototype.loadMaterialPropertiesAsync=function(e,t,n){var r=this;return de.LoadExtensionAsync(e,t,this.name,(function(){return r._loadUnlitPropertiesAsync(e,t,n)}))},e.prototype._loadUnlitPropertiesAsync=function(e,t,n){if(!(n instanceof d.PBRMaterial))throw new Error("".concat(e,": Material type not supported"));var r=new Array;n.unlit=!0;var o=t.pbrMetallicRoughness;return o&&(o.baseColorFactor?(n.albedoColor=d.Color3.FromArray(o.baseColorFactor),n.alpha=o.baseColorFactor[3]):n.albedoColor=d.Color3.White(),o.baseColorTexture&&r.push(this._loader.loadTextureInfoAsync("".concat(e,"/baseColorTexture"),o.baseColorTexture,(function(e){e.name="".concat(n.name," (Base Color)"),n.albedoTexture=e})))),t.doubleSided&&(n.backFaceCulling=!1,n.twoSidedLighting=!0),this._loader.loadMaterialAlphaProperties(e,t,n),Promise.all(r).then((function(){}))},e}();de.RegisterExtension(Me,(function(e){return new Le(e)}));var Ce="KHR_materials_clearcoat",we=function(){function e(e){this.name=Ce,this.order=190,this._loader=e,this.enabled=this._loader.isExtensionUsed(Ce)}return e.prototype.dispose=function(){this._loader=null},e.prototype.loadMaterialPropertiesAsync=function(e,t,n){var r=this;return de.LoadExtensionAsync(e,t,this.name,(function(o,a){var i=new Array;return i.push(r._loader.loadMaterialPropertiesAsync(e,t,n)),i.push(r._loadClearCoatPropertiesAsync(o,a,n)),Promise.all(i).then((function(){}))}))},e.prototype._loadClearCoatPropertiesAsync=function(e,t,n){if(!(n instanceof d.PBRMaterial))throw new Error("".concat(e,": Material type not supported"));var r=new Array;return n.clearCoat.isEnabled=!0,n.clearCoat.useRoughnessFromMainTexture=!1,n.clearCoat.remapF0OnInterfaceChange=!1,null!=t.clearcoatFactor?n.clearCoat.intensity=t.clearcoatFactor:n.clearCoat.intensity=0,t.clearcoatTexture&&r.push(this._loader.loadTextureInfoAsync("".concat(e,"/clearcoatTexture"),t.clearcoatTexture,(function(e){e.name="".concat(n.name," (ClearCoat Intensity)"),n.clearCoat.texture=e}))),null!=t.clearcoatRoughnessFactor?n.clearCoat.roughness=t.clearcoatRoughnessFactor:n.clearCoat.roughness=0,t.clearcoatRoughnessTexture&&(t.clearcoatRoughnessTexture.nonColorData=!0,r.push(this._loader.loadTextureInfoAsync("".concat(e,"/clearcoatRoughnessTexture"),t.clearcoatRoughnessTexture,(function(e){e.name="".concat(n.name," (ClearCoat Roughness)"),n.clearCoat.textureRoughness=e})))),t.clearcoatNormalTexture&&(t.clearcoatNormalTexture.nonColorData=!0,r.push(this._loader.loadTextureInfoAsync("".concat(e,"/clearcoatNormalTexture"),t.clearcoatNormalTexture,(function(e){e.name="".concat(n.name," (ClearCoat Normal)"),n.clearCoat.bumpTexture=e}))),n.invertNormalMapX=!n.getScene().useRightHandedSystem,n.invertNormalMapY=n.getScene().useRightHandedSystem,null!=t.clearcoatNormalTexture.scale&&(n.clearCoat.bumpTexture.level=t.clearcoatNormalTexture.scale)),Promise.all(r).then((function(){}))},e}();de.RegisterExtension(Ce,(function(e){return new we(e)}));var Se="KHR_materials_iridescence",Ne=function(){function e(e){this.name=Se,this.order=195,this._loader=e,this.enabled=this._loader.isExtensionUsed(Se)}return e.prototype.dispose=function(){this._loader=null},e.prototype.loadMaterialPropertiesAsync=function(e,t,n){var r=this;return de.LoadExtensionAsync(e,t,this.name,(function(o,a){var i=new Array;return i.push(r._loader.loadMaterialPropertiesAsync(e,t,n)),i.push(r._loadIridescencePropertiesAsync(o,a,n)),Promise.all(i).then((function(){}))}))},e.prototype._loadIridescencePropertiesAsync=function(e,t,n){var r,o,a,i,s;if(!(n instanceof d.PBRMaterial))throw new Error("".concat(e,": Material type not supported"));var l=new Array;return n.iridescence.isEnabled=!0,n.iridescence.intensity=null!==(r=t.iridescenceFactor)&&void 0!==r?r:0,n.iridescence.indexOfRefraction=null!==(a=null!==(o=t.iridescenceIor)&&void 0!==o?o:t.iridescenceIOR)&&void 0!==a?a:1.3,n.iridescence.minimumThickness=null!==(i=t.iridescenceThicknessMinimum)&&void 0!==i?i:100,n.iridescence.maximumThickness=null!==(s=t.iridescenceThicknessMaximum)&&void 0!==s?s:400,t.iridescenceTexture&&l.push(this._loader.loadTextureInfoAsync("".concat(e,"/iridescenceTexture"),t.iridescenceTexture,(function(e){e.name="".concat(n.name," (Iridescence Intensity)"),n.iridescence.texture=e}))),t.iridescenceThicknessTexture&&l.push(this._loader.loadTextureInfoAsync("".concat(e,"/iridescenceThicknessTexture"),t.iridescenceThicknessTexture,(function(e){e.name="".concat(n.name," (Iridescence Thickness)"),n.iridescence.thicknessTexture=e}))),Promise.all(l).then((function(){}))},e}();de.RegisterExtension(Se,(function(e){return new Ne(e)}));var Re="KHR_materials_emissive_strength",Pe=function(){function e(e){this.name=Re,this.order=170,this._loader=e,this.enabled=this._loader.isExtensionUsed(Re)}return e.prototype.dispose=function(){this._loader=null},e.prototype.loadMaterialPropertiesAsync=function(e,t,n){var r=this;return de.LoadExtensionAsync(e,t,this.name,(function(o,a){return r._loader.loadMaterialPropertiesAsync(e,t,n).then((function(){r._loadEmissiveProperties(o,a,n)}))}))},e.prototype._loadEmissiveProperties=function(e,t,n){if(!(n instanceof d.PBRMaterial))throw new Error("".concat(e,": Material type not supported"));void 0!==t.emissiveStrength&&n.emissiveColor.scaleToRef(t.emissiveStrength,n.emissiveColor)},e}();de.RegisterExtension(Re,(function(e){return new Pe(e)}));var Ie="KHR_materials_sheen",Fe=function(){function e(e){this.name=Ie,this.order=190,this._loader=e,this.enabled=this._loader.isExtensionUsed(Ie)}return e.prototype.dispose=function(){this._loader=null},e.prototype.loadMaterialPropertiesAsync=function(e,t,n){var r=this;return de.LoadExtensionAsync(e,t,this.name,(function(o,a){var i=new Array;return i.push(r._loader.loadMaterialPropertiesAsync(e,t,n)),i.push(r._loadSheenPropertiesAsync(o,a,n)),Promise.all(i).then((function(){}))}))},e.prototype._loadSheenPropertiesAsync=function(e,t,n){if(!(n instanceof d.PBRMaterial))throw new Error("".concat(e,": Material type not supported"));var r=new Array;return n.sheen.isEnabled=!0,n.sheen.intensity=1,null!=t.sheenColorFactor?n.sheen.color=d.Color3.FromArray(t.sheenColorFactor):n.sheen.color=d.Color3.Black(),t.sheenColorTexture&&r.push(this._loader.loadTextureInfoAsync("".concat(e,"/sheenColorTexture"),t.sheenColorTexture,(function(e){e.name="".concat(n.name," (Sheen Color)"),n.sheen.texture=e}))),void 0!==t.sheenRoughnessFactor?n.sheen.roughness=t.sheenRoughnessFactor:n.sheen.roughness=0,t.sheenRoughnessTexture&&(t.sheenRoughnessTexture.nonColorData=!0,r.push(this._loader.loadTextureInfoAsync("".concat(e,"/sheenRoughnessTexture"),t.sheenRoughnessTexture,(function(e){e.name="".concat(n.name," (Sheen Roughness)"),n.sheen.textureRoughness=e})))),n.sheen.albedoScaling=!0,n.sheen.useRoughnessFromMainTexture=!1,Promise.all(r).then((function(){}))},e}();de.RegisterExtension(Ie,(function(e){return new Fe(e)}));var Be="KHR_materials_specular",Ve=function(){function e(e){this.name=Be,this.order=190,this._loader=e,this.enabled=this._loader.isExtensionUsed(Be)}return e.prototype.dispose=function(){this._loader=null},e.prototype.loadMaterialPropertiesAsync=function(e,t,n){var r=this;return de.LoadExtensionAsync(e,t,this.name,(function(o,a){var i=new Array;return i.push(r._loader.loadMaterialPropertiesAsync(e,t,n)),i.push(r._loadSpecularPropertiesAsync(o,a,n)),Promise.all(i).then((function(){}))}))},e.prototype._loadSpecularPropertiesAsync=function(e,t,n){if(!(n instanceof d.PBRMaterial))throw new Error("".concat(e,": Material type not supported"));var r=new Array;return void 0!==t.specularFactor&&(n.metallicF0Factor=t.specularFactor),void 0!==t.specularColorFactor&&(n.metallicReflectanceColor=d.Color3.FromArray(t.specularColorFactor)),t.specularTexture&&(t.specularTexture.nonColorData=!0,r.push(this._loader.loadTextureInfoAsync("".concat(e,"/specularTexture"),t.specularTexture,(function(e){e.name="".concat(n.name," (Specular F0 Strength)"),n.metallicReflectanceTexture=e,n.useOnlyMetallicFromMetallicReflectanceTexture=!0})))),t.specularColorTexture&&r.push(this._loader.loadTextureInfoAsync("".concat(e,"/specularColorTexture"),t.specularColorTexture,(function(e){e.name="".concat(n.name," (Specular F0 Color)"),n.reflectanceTexture=e}))),Promise.all(r).then((function(){}))},e}();de.RegisterExtension(Be,(function(e){return new Ve(e)}));var De="KHR_materials_ior",ke=function(){function e(e){this.name=De,this.order=180,this._loader=e,this.enabled=this._loader.isExtensionUsed(De)}return e.prototype.dispose=function(){this._loader=null},e.prototype.loadMaterialPropertiesAsync=function(e,t,n){var r=this;return de.LoadExtensionAsync(e,t,this.name,(function(o,a){var i=new Array;return i.push(r._loader.loadMaterialPropertiesAsync(e,t,n)),i.push(r._loadIorPropertiesAsync(o,a,n)),Promise.all(i).then((function(){}))}))},e.prototype._loadIorPropertiesAsync=function(t,n,r){if(!(r instanceof d.PBRMaterial))throw new Error("".concat(t,": Material type not supported"));return void 0!==n.ior?r.indexOfRefraction=n.ior:r.indexOfRefraction=e._DEFAULT_IOR,Promise.resolve()},e._DEFAULT_IOR=1.5,e}();de.RegisterExtension(De,(function(e){return new ke(e)}));var Ge="KHR_materials_variants",Ue=function(){function e(e){this.name=Ge,this._loader=e,this.enabled=this._loader.isExtensionUsed(Ge)}return e.prototype.dispose=function(){this._loader=null},e.GetAvailableVariants=function(e){var t=this._GetExtensionMetadata(e);return t?Object.keys(t.variants):[]},e.prototype.getAvailableVariants=function(t){return e.GetAvailableVariants(t)},e.SelectVariant=function(e,t){var n=this._GetExtensionMetadata(e);if(!n)throw new Error("Cannot select variant on a glTF mesh that does not have the ".concat(Ge," extension"));var r=function(e){var t=n.variants[e];if(t)for(var r=0,o=t;r<o.length;r++){var a=o[r];a.mesh.material=a.material}};if(t instanceof Array)for(var o=0,a=t;o<a.length;o++)r(a[o]);else r(t);n.lastSelected=t},e.prototype.selectVariant=function(t,n){return e.SelectVariant(t,n)},e.Reset=function(e){var t=this._GetExtensionMetadata(e);if(!t)throw new Error("Cannot reset on a glTF mesh that does not have the ".concat(Ge," extension"));for(var n=0,r=t.original;n<r.length;n++){var o=r[n];o.mesh.material=o.material}t.lastSelected=null},e.prototype.reset=function(t){return e.Reset(t)},e.GetLastSelectedVariant=function(e){var t=this._GetExtensionMetadata(e);if(!t)throw new Error("Cannot get the last selected variant on a glTF mesh that does not have the ".concat(Ge," extension"));return t.lastSelected},e.prototype.getLastSelectedVariant=function(t){return e.GetLastSelectedVariant(t)},e._GetExtensionMetadata=function(e){var t,n;return(null===(n=null===(t=null==e?void 0:e._internalMetadata)||void 0===t?void 0:t.gltf)||void 0===n?void 0:n[Ge])||null},e.prototype.onLoading=function(){var e=this._loader.gltf.extensions;if(e&&e[this.name]){var t=e[this.name];this._variants=t.variants}},e.prototype._loadMeshPrimitiveAsync=function(t,n,r,o,a,i){var s=this;return de.LoadExtensionAsync(t,a,this.name,(function(l,c){var u=new Array;return u.push(s._loader._loadMeshPrimitiveAsync(t,n,r,o,a,(function(n){if(i(n),n instanceof d.Mesh){var r=de._GetDrawMode(t,a.mode),o=s._loader.rootBabylonMesh,h=o?o._internalMetadata=o._internalMetadata||{}:{},f=h.gltf=h.gltf||{},p=f[Ge]=f[Ge]||{lastSelected:null,original:[],variants:{}};p.original.push({mesh:n,material:n.material});for(var _=function(t){var a=c.mappings[t],i=ue.Get("".concat(l,"/mappings/").concat(t,"/material"),s._loader.gltf.materials,a.material);u.push(s._loader._loadMaterialAsync("#/materials/".concat(a.material),i,n,r,(function(t){for(var r=function(r){var i=a.variants[r],l=ue.Get("/extensions/".concat(Ge,"/variants/").concat(i),s._variants,i);p.variants[l.name]=p.variants[l.name]||[],p.variants[l.name].push({mesh:n,material:t}),n.onClonedObservable.add((function(t){var r=t,a=null,i=r;do{if(!(i=i.parent))return;a=e._GetExtensionMetadata(i)}while(null===a);if(o&&a===e._GetExtensionMetadata(o)){for(var s in i._internalMetadata={},o._internalMetadata)i._internalMetadata[s]=o._internalMetadata[s];for(var s in i._internalMetadata.gltf=[],o._internalMetadata.gltf)i._internalMetadata.gltf[s]=o._internalMetadata.gltf[s];i._internalMetadata.gltf[Ge]={lastSelected:null,original:[],variants:{}};for(var c=0,u=a.original;c<u.length;c++){var d=u[c];i._internalMetadata.gltf[Ge].original.push({mesh:d.mesh,material:d.material})}for(var s in a.variants)if(Object.prototype.hasOwnProperty.call(a.variants,s)){i._internalMetadata.gltf[Ge].variants[s]=[];for(var h=0,f=a.variants[s];h<f.length;h++){var p=f[h];i._internalMetadata.gltf[Ge].variants[s].push({mesh:p.mesh,material:p.material})}}a=i._internalMetadata.gltf[Ge]}for(var _=0,m=a.original;_<m.length;_++)(v=m[_]).mesh===n&&(v.mesh=r);for(var y=0,g=a.variants[l.name];y<g.length;y++){var v;(v=g[y]).mesh===n&&(v.mesh=r)}}))},i=0;i<a.variants.length;++i)r(i)})))},m=0;m<c.mappings.length;++m)_(m)}}))),Promise.all(u).then((function(e){return e[0]}))}))},e}();de.RegisterExtension(Ge,(function(e){return new Ue(e)}));var je=function(){function e(t,n){var r=this;this._opaqueRenderTarget=null,this._opaqueMeshesCache=[],this._transparentMeshesCache=[],this._materialObservers={},this._options=S(S({},e._GetDefaultOptions()),t),this._scene=n,this._scene._transmissionHelper=this,this.onErrorObservable=new d.Observable,this._scene.onDisposeObservable.addOnce((function(){r.dispose()})),this._parseScene(),this._setupRenderTargets()}return e._GetDefaultOptions=function(){return{renderSize:1024,samples:4,lodGenerationScale:1,lodGenerationOffset:-4,renderTargetTextureType:d.Constants.TEXTURETYPE_HALF_FLOAT,generateMipmaps:!0}},e.prototype.updateOptions=function(e){var t=this,n=Object.keys(e).filter((function(n){return t._options[n]!==e[n]}));if(n.length){var r=S(S({},this._options),e),o=this._options;this._options=r,r.renderSize===o.renderSize&&r.renderTargetTextureType===o.renderTargetTextureType&&r.generateMipmaps===o.generateMipmaps&&this._opaqueRenderTarget?(this._opaqueRenderTarget.samples=r.samples,this._opaqueRenderTarget.lodGenerationScale=r.lodGenerationScale,this._opaqueRenderTarget.lodGenerationOffset=r.lodGenerationOffset):this._setupRenderTargets()}},e.prototype.getOpaqueTarget=function(){return this._opaqueRenderTarget},e.prototype._shouldRenderAsTransmission=function(e){return!!e&&!!(e instanceof d.PBRMaterial&&e.subSurface.isRefractionEnabled)},e.prototype._addMesh=function(e){var t=this;this._materialObservers[e.uniqueId]=e.onMaterialChangedObservable.add(this._onMeshMaterialChanged.bind(this)),d.Tools.SetImmediate((function(){t._shouldRenderAsTransmission(e.material)?(e.material.refractionTexture=t._opaqueRenderTarget,-1===t._transparentMeshesCache.indexOf(e)&&t._transparentMeshesCache.push(e)):-1===t._opaqueMeshesCache.indexOf(e)&&t._opaqueMeshesCache.push(e)}))},e.prototype._removeMesh=function(e){e.onMaterialChangedObservable.remove(this._materialObservers[e.uniqueId]),delete this._materialObservers[e.uniqueId];var t=this._transparentMeshesCache.indexOf(e);-1!==t&&this._transparentMeshesCache.splice(t,1),-1!==(t=this._opaqueMeshesCache.indexOf(e))&&this._opaqueMeshesCache.splice(t,1)},e.prototype._parseScene=function(){this._scene.meshes.forEach(this._addMesh.bind(this)),this._scene.onNewMeshAddedObservable.add(this._addMesh.bind(this)),this._scene.onMeshRemovedObservable.add(this._removeMesh.bind(this))},e.prototype._onMeshMaterialChanged=function(e){var t=this._transparentMeshesCache.indexOf(e),n=this._opaqueMeshesCache.indexOf(e);this._shouldRenderAsTransmission(e.material)?(e.material instanceof d.PBRMaterial&&(e.material.subSurface.refractionTexture=this._opaqueRenderTarget),-1!==n?(this._opaqueMeshesCache.splice(n,1),this._transparentMeshesCache.push(e)):-1===t&&this._transparentMeshesCache.push(e)):-1!==t?(this._transparentMeshesCache.splice(t,1),this._opaqueMeshesCache.push(e)):-1===n&&this._opaqueMeshesCache.push(e)},e.prototype._setupRenderTargets=function(){var e,t,n,r,o=this;this._opaqueRenderTarget&&this._opaqueRenderTarget.dispose(),this._opaqueRenderTarget=new d.RenderTargetTexture("opaqueSceneTexture",this._options.renderSize,this._scene,this._options.generateMipmaps,void 0,this._options.renderTargetTextureType),this._opaqueRenderTarget.ignoreCameraViewport=!0,this._opaqueRenderTarget.renderList=this._opaqueMeshesCache,this._opaqueRenderTarget.clearColor=null!==(t=null===(e=this._options.clearColor)||void 0===e?void 0:e.clone())&&void 0!==t?t:this._scene.clearColor.clone(),this._opaqueRenderTarget.gammaSpace=!1,this._opaqueRenderTarget.lodGenerationScale=this._options.lodGenerationScale,this._opaqueRenderTarget.lodGenerationOffset=this._options.lodGenerationOffset,this._opaqueRenderTarget.samples=this._options.samples,this._opaqueRenderTarget.onBeforeBindObservable.add((function(e){r=o._scene.environmentIntensity,o._scene.environmentIntensity=1,n=o._scene.imageProcessingConfiguration.applyByPostProcess,o._options.clearColor?e.clearColor.copyFrom(o._options.clearColor):o._scene.clearColor.toLinearSpaceToRef(e.clearColor,o._scene.getEngine().useExactSrgbConversions),o._scene.imageProcessingConfiguration._applyByPostProcess=!0})),this._opaqueRenderTarget.onAfterUnbindObservable.add((function(){o._scene.environmentIntensity=r,o._scene.imageProcessingConfiguration._applyByPostProcess=n})),this._transparentMeshesCache.forEach((function(e){o._shouldRenderAsTransmission(e.material)&&(e.material.refractionTexture=o._opaqueRenderTarget)}))},e.prototype.dispose=function(){this._scene._transmissionHelper=void 0,this._opaqueRenderTarget&&(this._opaqueRenderTarget.dispose(),this._opaqueRenderTarget=null),this._transparentMeshesCache=[],this._opaqueMeshesCache=[]},e}(),He="KHR_materials_transmission",Ke=function(){function e(e){this.name=He,this.order=175,this._loader=e,this.enabled=this._loader.isExtensionUsed(He),this.enabled&&(e.parent.transparencyAsCoverage=!0)}return e.prototype.dispose=function(){this._loader=null},e.prototype.loadMaterialPropertiesAsync=function(e,t,n){var r=this;return de.LoadExtensionAsync(e,t,this.name,(function(o,a){var i=new Array;return i.push(r._loader.loadMaterialBasePropertiesAsync(e,t,n)),i.push(r._loader.loadMaterialPropertiesAsync(e,t,n)),i.push(r._loadTransparentPropertiesAsync(o,t,n,a)),Promise.all(i).then((function(){}))}))},e.prototype._loadTransparentPropertiesAsync=function(e,t,n,r){if(!(n instanceof d.PBRMaterial))throw new Error("".concat(e,": Material type not supported"));var o=n;if(o.subSurface.isRefractionEnabled=!0,o.subSurface.volumeIndexOfRefraction=1,o.subSurface.useAlbedoToTintRefraction=!0,void 0===r.transmissionFactor)return o.subSurface.refractionIntensity=0,o.subSurface.isRefractionEnabled=!1,Promise.resolve();o.subSurface.refractionIntensity=r.transmissionFactor;var a=o.getScene();return o.subSurface.refractionIntensity&&!a._transmissionHelper&&new je({},o.getScene()),o.subSurface.minimumThickness=0,o.subSurface.maximumThickness=0,r.transmissionTexture?(r.transmissionTexture.nonColorData=!0,this._loader.loadTextureInfoAsync("".concat(e,"/transmissionTexture"),r.transmissionTexture,void 0).then((function(e){o.subSurface.refractionIntensityTexture=e,o.subSurface.useGltfStyleTextures=!0}))):Promise.resolve()},e}();de.RegisterExtension(He,(function(e){return new Ke(e)}));var We="KHR_materials_translucency",Ye=function(){function e(e){this.name=We,this.order=174,this._loader=e,this.enabled=this._loader.isExtensionUsed(We),this.enabled&&(e.parent.transparencyAsCoverage=!0)}return e.prototype.dispose=function(){this._loader=null},e.prototype.loadMaterialPropertiesAsync=function(e,t,n){var r=this;return de.LoadExtensionAsync(e,t,this.name,(function(o,a){var i=new Array;return i.push(r._loader.loadMaterialBasePropertiesAsync(e,t,n)),i.push(r._loader.loadMaterialPropertiesAsync(e,t,n)),i.push(r._loadTranslucentPropertiesAsync(o,t,n,a)),Promise.all(i).then((function(){}))}))},e.prototype._loadTranslucentPropertiesAsync=function(e,t,n,r){if(!(n instanceof d.PBRMaterial))throw new Error("".concat(e,": Material type not supported"));var o=n;return o.subSurface.isTranslucencyEnabled=!0,o.subSurface.volumeIndexOfRefraction=1,o.subSurface.minimumThickness=0,o.subSurface.maximumThickness=0,o.subSurface.useAlbedoToTintTranslucency=!0,void 0===r.translucencyFactor?(o.subSurface.translucencyIntensity=0,o.subSurface.isTranslucencyEnabled=!1,Promise.resolve()):(o.subSurface.translucencyIntensity=r.translucencyFactor,r.translucencyTexture?(r.translucencyTexture.nonColorData=!0,this._loader.loadTextureInfoAsync("".concat(e,"/translucencyTexture"),r.translucencyTexture).then((function(e){o.subSurface.translucencyIntensityTexture=e}))):Promise.resolve())},e}();de.RegisterExtension(We,(function(e){return new Ye(e)}));var qe="KHR_materials_volume",Xe=function(){function e(e){this.name=qe,this.order=173,this._loader=e,this.enabled=this._loader.isExtensionUsed(qe),this.enabled&&this._loader._disableInstancedMesh++}return e.prototype.dispose=function(){this.enabled&&this._loader._disableInstancedMesh--,this._loader=null},e.prototype.loadMaterialPropertiesAsync=function(e,t,n){var r=this;return de.LoadExtensionAsync(e,t,this.name,(function(o,a){var i=new Array;return i.push(r._loader.loadMaterialBasePropertiesAsync(e,t,n)),i.push(r._loader.loadMaterialPropertiesAsync(e,t,n)),i.push(r._loadVolumePropertiesAsync(o,t,n,a)),Promise.all(i).then((function(){}))}))},e.prototype._loadVolumePropertiesAsync=function(e,t,n,r){if(!(n instanceof d.PBRMaterial))throw new Error("".concat(e,": Material type not supported"));if(!n.subSurface.isRefractionEnabled&&!n.subSurface.isTranslucencyEnabled||!r.thicknessFactor)return Promise.resolve();n.subSurface.volumeIndexOfRefraction=n.indexOfRefraction;var o=void 0!==r.attenuationDistance?r.attenuationDistance:Number.MAX_VALUE;return n.subSurface.tintColorAtDistance=o,void 0!==r.attenuationColor&&3==r.attenuationColor.length&&n.subSurface.tintColor.copyFromFloats(r.attenuationColor[0],r.attenuationColor[1],r.attenuationColor[2]),n.subSurface.minimumThickness=0,n.subSurface.maximumThickness=r.thicknessFactor,n.subSurface.useThicknessAsDepth=!0,r.thicknessTexture?(r.thicknessTexture.nonColorData=!0,this._loader.loadTextureInfoAsync("".concat(e,"/thicknessTexture"),r.thicknessTexture).then((function(e){n.subSurface.thicknessTexture=e,n.subSurface.useGltfStyleTextures=!0}))):Promise.resolve()},e}();de.RegisterExtension(qe,(function(e){return new Xe(e)}));var ze="KHR_mesh_quantization",Ze=function(){function e(e){this.name=ze,this.enabled=e.isExtensionUsed(ze)}return e.prototype.dispose=function(){},e}();de.RegisterExtension(ze,(function(e){return new Ze(e)}));var Qe="KHR_texture_basisu",Je=function(){function e(e){this.name=Qe,this._loader=e,this.enabled=e.isExtensionUsed(Qe)}return e.prototype.dispose=function(){this._loader=null},e.prototype._loadTextureAsync=function(e,t,n){var r=this;return de.LoadExtensionAsync(e,t,this.name,(function(o,a){var i=null==t.sampler?de.DefaultSampler:ue.Get("".concat(e,"/sampler"),r._loader.gltf.samplers,t.sampler),s=ue.Get("".concat(o,"/source"),r._loader.gltf.images,a.source);return r._loader._createTextureAsync(e,i,s,(function(e){n(e)}),t._textureInfo.nonColorData?{useRGBAIfASTCBC7NotAvailableWhenUASTC:!0}:void 0,!t._textureInfo.nonColorData)}))},e}();de.RegisterExtension(Qe,(function(e){return new Je(e)}));var $e="KHR_texture_transform",et=function(){function e(e){this.name=$e,this._loader=e,this.enabled=this._loader.isExtensionUsed($e)}return e.prototype.dispose=function(){this._loader=null},e.prototype.loadTextureInfoAsync=function(e,t,n){var r=this;return de.LoadExtensionAsync(e,t,this.name,(function(o,a){return r._loader.loadTextureInfoAsync(e,t,(function(e){if(!(e instanceof d.Texture))throw new Error("".concat(o,": Texture type not supported"));a.offset&&(e.uOffset=a.offset[0],e.vOffset=a.offset[1]),e.uRotationCenter=0,e.vRotationCenter=0,a.rotation&&(e.wAng=-a.rotation),a.scale&&(e.uScale=a.scale[0],e.vScale=a.scale[1]),null!=a.texCoord&&(e.coordinatesIndex=a.texCoord),n(e)}))}))},e}();de.RegisterExtension($e,(function(e){return new et(e)}));var tt="KHR_xmp_json_ld",nt=function(){function e(e){this.name=tt,this.order=100,this._loader=e,this.enabled=this._loader.isExtensionUsed(tt)}return e.prototype.dispose=function(){this._loader=null},e.prototype.onLoading=function(){var e,t,n;if(null!==this._loader.rootBabylonMesh){var r=null===(e=this._loader.gltf.extensions)||void 0===e?void 0:e.KHR_xmp_json_ld,o=null===(n=null===(t=this._loader.gltf.asset)||void 0===t?void 0:t.extensions)||void 0===n?void 0:n.KHR_xmp_json_ld;if(r&&o){var a=+o.packet;r.packets&&a<r.packets.length&&(this._loader.rootBabylonMesh.metadata=this._loader.rootBabylonMesh.metadata||{},this._loader.rootBabylonMesh.metadata.xmp=r.packets[a])}}},e}();function rt(e,t,n,r){return d.Color3.FromArray(t,n).scale(r)}function ot(e,t,n,r){return t[n]*r}function at(e,t,n,r){return-t[n]*r}function it(e,t,n,r){return t[n+1]*r}function st(e,t,n,r){return t[n]*r*2}function lt(e){return{scale:[new ut(d.Animation.ANIMATIONTYPE_FLOAT,"".concat(e,".uScale"),ot,(function(){return 2})),new ut(d.Animation.ANIMATIONTYPE_FLOAT,"".concat(e,".vScale"),it,(function(){return 2}))],offset:[new ut(d.Animation.ANIMATIONTYPE_FLOAT,"".concat(e,".uOffset"),ot,(function(){return 2})),new ut(d.Animation.ANIMATIONTYPE_FLOAT,"".concat(e,".vOffset"),it,(function(){return 2}))],rotation:[new ut(d.Animation.ANIMATIONTYPE_FLOAT,"".concat(e,".wAng"),at,(function(){return 1}))]}}de.RegisterExtension(tt,(function(e){return new nt(e)}));var ct=function(e){function t(){return null!==e&&e.apply(this,arguments)||this}return A(t,e),t.prototype.buildAnimations=function(e,t,n,r,o){o(e._babylonCamera,this._buildAnimation(t,n,r))},t}(ae),ut=function(e){function t(){return null!==e&&e.apply(this,arguments)||this}return A(t,e),t.prototype.buildAnimations=function(e,t,n,r,o){for(var a in e._data)o(e._data[a].babylonMaterial,this._buildAnimation(t,n,r))},t}(ae),dt=function(e){function t(){return null!==e&&e.apply(this,arguments)||this}return A(t,e),t.prototype.buildAnimations=function(e,t,n,r,o){o(e._babylonLight,this._buildAnimation(t,n,r))},t}(ae),ht={__array__:S({__target__:!0},le)},ft={__array__:{__target__:!0,orthographic:{xmag:[new ct(d.Animation.ANIMATIONTYPE_FLOAT,"orthoLeft",at,(function(){return 1})),new ct(d.Animation.ANIMATIONTYPE_FLOAT,"orthoRight",it,(function(){return 1}))],ymag:[new ct(d.Animation.ANIMATIONTYPE_FLOAT,"orthoBottom",at,(function(){return 1})),new ct(d.Animation.ANIMATIONTYPE_FLOAT,"orthoTop",it,(function(){return 1}))],zfar:[new ct(d.Animation.ANIMATIONTYPE_FLOAT,"maxZ",ot,(function(){return 1}))],znear:[new ct(d.Animation.ANIMATIONTYPE_FLOAT,"minZ",ot,(function(){return 1}))]},perspective:{yfov:[new ct(d.Animation.ANIMATIONTYPE_FLOAT,"fov",ot,(function(){return 1}))],zfar:[new ct(d.Animation.ANIMATIONTYPE_FLOAT,"maxZ",ot,(function(){return 1}))],znear:[new ct(d.Animation.ANIMATIONTYPE_FLOAT,"minZ",ot,(function(){return 1}))]}}},pt={nodes:ht,materials:{__array__:{__target__:!0,pbrMetallicRoughness:{baseColorFactor:[new ut(d.Animation.ANIMATIONTYPE_COLOR3,"albedoColor",rt,(function(){return 4})),new ut(d.Animation.ANIMATIONTYPE_FLOAT,"alpha",(function(e,t,n,r){return t[n+3]*r}),(function(){return 4}))],metallicFactor:[new ut(d.Animation.ANIMATIONTYPE_FLOAT,"metallic",ot,(function(){return 1}))],roughnessFactor:[new ut(d.Animation.ANIMATIONTYPE_FLOAT,"roughness",ot,(function(){return 1}))],baseColorTexture:{extensions:{KHR_texture_transform:lt("albedoTexture")}}},emissiveFactor:[new ut(d.Animation.ANIMATIONTYPE_COLOR3,"emissiveColor",rt,(function(){return 3}))],normalTexture:{scale:[new ut(d.Animation.ANIMATIONTYPE_FLOAT,"bumpTexture.level",ot,(function(){return 1}))]},occlusionTexture:{strength:[new ut(d.Animation.ANIMATIONTYPE_FLOAT,"ambientTextureStrength",ot,(function(){return 1}))],extensions:{KHR_texture_transform:lt("ambientTexture")}},emissiveTexture:{extensions:{KHR_texture_transform:lt("emissiveTexture")}},extensions:{KHR_materials_ior:{ior:[new ut(d.Animation.ANIMATIONTYPE_FLOAT,"indexOfRefraction",ot,(function(){return 1}))]},KHR_materials_clearcoat:{clearcoatFactor:[new ut(d.Animation.ANIMATIONTYPE_FLOAT,"clearCoat.intensity",ot,(function(){return 1}))],clearcoatRoughnessFactor:[new ut(d.Animation.ANIMATIONTYPE_FLOAT,"clearCoat.roughness",ot,(function(){return 1}))]},KHR_materials_sheen:{sheenColorFactor:[new ut(d.Animation.ANIMATIONTYPE_COLOR3,"sheen.color",rt,(function(){return 3}))],sheenRoughnessFactor:[new ut(d.Animation.ANIMATIONTYPE_FLOAT,"sheen.roughness",ot,(function(){return 1}))]},KHR_materials_specular:{specularFactor:[new ut(d.Animation.ANIMATIONTYPE_FLOAT,"metallicF0Factor",ot,(function(){return 1}))],specularColorFactor:[new ut(d.Animation.ANIMATIONTYPE_COLOR3,"metallicReflectanceColor",rt,(function(){return 3}))]},KHR_materials_emissive_strength:{emissiveStrength:[new ut(d.Animation.ANIMATIONTYPE_FLOAT,"emissiveIntensity",ot,(function(){return 1}))]},KHR_materials_transmission:{transmissionFactor:[new ut(d.Animation.ANIMATIONTYPE_FLOAT,"subSurface.refractionIntensity",ot,(function(){return 1}))]},KHR_materials_volume:{attenuationColor:[new ut(d.Animation.ANIMATIONTYPE_COLOR3,"subSurface.tintColor",rt,(function(){return 3}))],attenuationDistance:[new ut(d.Animation.ANIMATIONTYPE_FLOAT,"subSurface.tintColorAtDistance",ot,(function(){return 1}))],thicknessFactor:[new ut(d.Animation.ANIMATIONTYPE_FLOAT,"subSurface.maximumThickness",ot,(function(){return 1}))]},KHR_materials_iridescence:{iridescenceFactor:[new ut(d.Animation.ANIMATIONTYPE_FLOAT,"iridescence.intensity",ot,(function(){return 1}))],iridescenceIor:[new ut(d.Animation.ANIMATIONTYPE_FLOAT,"iridescence.indexOfRefraction",ot,(function(){return 1}))],iridescenceThicknessMinimum:[new ut(d.Animation.ANIMATIONTYPE_FLOAT,"iridescence.minimumThickness",ot,(function(){return 1}))],iridescenceThicknessMaximum:[new ut(d.Animation.ANIMATIONTYPE_FLOAT,"iridescence.maximumThickness",ot,(function(){return 1}))]}}}},cameras:ft,extensions:{KHR_lights_punctual:{lights:{__array__:{__target__:!0,color:[new dt(d.Animation.ANIMATIONTYPE_COLOR3,"diffuse",rt,(function(){return 3}))],intensity:[new dt(d.Animation.ANIMATIONTYPE_FLOAT,"intensity",ot,(function(){return 1}))],range:[new dt(d.Animation.ANIMATIONTYPE_FLOAT,"range",ot,(function(){return 1}))],spot:{innerConeAngle:[new dt(d.Animation.ANIMATIONTYPE_FLOAT,"innerAngle",st,(function(){return 1}))],outerConeAngle:[new dt(d.Animation.ANIMATIONTYPE_FLOAT,"angle",st,(function(){return 1}))]}}}}}},_t="KHR_animation_pointer",mt=function(){function e(e){this.name=_t,this._loader=e}return Object.defineProperty(e.prototype,"enabled",{get:function(){return this._loader.isExtensionUsed(_t)},enumerable:!1,configurable:!0}),e.prototype.dispose=function(){this._loader=null},e.prototype._loadAnimationChannelAsync=function(e,t,n,r,o){var a,i=null===(a=r.target.extensions)||void 0===a?void 0:a.KHR_animation_pointer;if(!i)return null;"pointer"!==r.target.path&&d.Logger.Warn("".concat(e,"/target/path: Value (").concat(r.target.path,") must be (").concat("pointer",") when using the ").concat(this.name," extension")),null!=r.target.node&&d.Logger.Warn("".concat(e,"/target/node: Value (").concat(r.target.node,") must not be present when using the ").concat(this.name," extension"));var s="".concat(e,"/extensions/").concat(this.name),l=i.pointer;if(!l)throw new Error("".concat(s,": Pointer is missing"));var c=this._parseAnimationPointer("".concat(s,"/pointer"),l);return c?this._loader._loadAnimationChannelFromTargetInfoAsync(e,t,n,r,c,o):(d.Logger.Warn("".concat(s,"/pointer: Invalid pointer (").concat(l,") skipped")),null)},e.prototype._parseAnimationPointer=function(e,t){if(!t.startsWith("/"))return d.Logger.Warn("".concat(e,": Value (").concat(t,") must start with a slash")),null;var n=t.split("/");n.shift();for(var r=pt,o=this._loader.gltf,a=void 0,i=0,s=n;i<s.length;i++){var l=s[i];if(r.__array__)r=r.__array__;else if(!(r=r[l]))return null;o=o&&o[l],r.__target__&&(a=o)}return a&&Array.isArray(r)?{target:a,properties:r}:null},e}();de.RegisterExtension(_t,(function(e){return new mt(e)}));var yt="MSFT_audio_emitter",gt=function(){function e(e){this.name=yt,this._loader=e,this.enabled=this._loader.isExtensionUsed(yt)}return e.prototype.dispose=function(){this._loader=null,this._clips=null,this._emitters=null},e.prototype.onLoading=function(){var e=this._loader.gltf.extensions;if(e&&e[this.name]){var t=e[this.name];this._clips=t.clips,this._emitters=t.emitters,ue.Assign(this._clips),ue.Assign(this._emitters)}},e.prototype.loadSceneAsync=function(e,t){var n=this;return de.LoadExtensionAsync(e,t,this.name,(function(r,o){var a=new Array;a.push(n._loader.loadSceneAsync(e,t));for(var i=0,s=o.emitters;i<s.length;i++){var l=s[i],c=ue.Get("".concat(r,"/emitters"),n._emitters,l);if(null!=c.refDistance||null!=c.maxDistance||null!=c.rolloffFactor||null!=c.distanceModel||null!=c.innerAngle||null!=c.outerAngle)throw new Error("".concat(r,": Direction or Distance properties are not allowed on emitters attached to a scene"));a.push(n._loadEmitterAsync("".concat(r,"/emitters/").concat(c.index),c))}return Promise.all(a).then((function(){}))}))},e.prototype.loadNodeAsync=function(e,t,n){var r=this;return de.LoadExtensionAsync(e,t,this.name,(function(e,o){var a=new Array;return r._loader.loadNodeAsync(e,t,(function(t){for(var i=function(n){var o=ue.Get("".concat(e,"/emitters"),r._emitters,n);a.push(r._loadEmitterAsync("".concat(e,"/emitters/").concat(o.index),o).then((function(){for(var e=0,n=o._babylonSounds;e<n.length;e++){var r=n[e];r.attachToMesh(t),null==o.innerAngle&&null==o.outerAngle||(r.setLocalDirectionToMesh(d.Vector3.Forward()),r.setDirectionalCone(2*d.Tools.ToDegrees(null==o.innerAngle?Math.PI:o.innerAngle),2*d.Tools.ToDegrees(null==o.outerAngle?Math.PI:o.outerAngle),0))}})))},s=0,l=o.emitters;s<l.length;s++)i(l[s]);n(t)})).then((function(e){return Promise.all(a).then((function(){return e}))}))}))},e.prototype.loadAnimationAsync=function(e,t){var n=this;return de.LoadExtensionAsync(e,t,this.name,(function(r,o){return n._loader.loadAnimationAsync(e,t).then((function(a){var i=new Array;ue.Assign(o.events);for(var s=0,l=o.events;s<l.length;s++){var c=l[s];i.push(n._loadAnimationEventAsync("".concat(r,"/events/").concat(c.index),e,t,c,a))}return Promise.all(i).then((function(){return a}))}))}))},e.prototype._loadClipAsync=function(e,t){if(t._objectURL)return t._objectURL;var n;if(t.uri)n=this._loader.loadUriAsync(e,t,t.uri);else{var r=ue.Get("".concat(e,"/bufferView"),this._loader.gltf.bufferViews,t.bufferView);n=this._loader.loadBufferViewAsync("/bufferViews/".concat(r.index),r)}return t._objectURL=n.then((function(e){return URL.createObjectURL(new Blob([e],{type:t.mimeType}))})),t._objectURL},e.prototype._loadEmitterAsync=function(e,t){var n=this;if(t._babylonSounds=t._babylonSounds||[],!t._babylonData){for(var r=new Array,o=t.name||"emitter".concat(t.index),a={loop:!1,autoplay:!1,volume:null==t.volume?1:t.volume},i=function(e){var i="/extensions/".concat(s.name,"/clips"),l=ue.Get(i,s._clips,t.clips[e].clip);r.push(s._loadClipAsync("".concat(i,"/").concat(t.clips[e].clip),l).then((function(r){var i=t._babylonSounds[e]=new d.Sound(o,r,n._loader.babylonScene,null,a);i.refDistance=t.refDistance||1,i.maxDistance=t.maxDistance||256,i.rolloffFactor=t.rolloffFactor||1,i.distanceModel=t.distanceModel||"exponential"})))},s=this,l=0;l<t.clips.length;l++)i(l);var c=Promise.all(r).then((function(){var e=t.clips.map((function(e){return e.weight||1})),n=new d.WeightedSound(t.loop||!1,t._babylonSounds,e);t.innerAngle&&(n.directionalConeInnerAngle=2*d.Tools.ToDegrees(t.innerAngle)),t.outerAngle&&(n.directionalConeOuterAngle=2*d.Tools.ToDegrees(t.outerAngle)),t.volume&&(n.volume=t.volume),t._babylonData.sound=n}));t._babylonData={loaded:c}}return t._babylonData.loaded},e.prototype._getEventAction=function(e,t,n,r,o){switch(n){case"play":return function(e){var n=(o||0)+(e-r);t.play(n)};case"stop":return function(){t.stop()};case"pause":return function(){t.pause()};default:throw new Error("".concat(e,": Unsupported action ").concat(n))}},e.prototype._loadAnimationEventAsync=function(e,t,n,r,o){var a=this;if(0==o.targetedAnimations.length)return Promise.resolve();var i=o.targetedAnimations[0],s=r.emitter,l=ue.Get("/extensions/".concat(this.name,"/emitters"),this._emitters,s);return this._loadEmitterAsync(e,l).then((function(){var t=l._babylonData.sound;if(t){var n=new d.AnimationEvent(r.time,a._getEventAction(e,t,r.action,r.time,r.startOffset));i.animation.addEvent(n),o.onAnimationGroupEndObservable.add((function(){t.stop()})),o.onAnimationGroupPauseObservable.add((function(){t.pause()}))}}))},e}();de.RegisterExtension(yt,(function(e){return new gt(e)}));var vt="MSFT_lod",bt=function(){function e(e){this.name=vt,this.order=100,this.maxLODsToLoad=10,this.onNodeLODsLoadedObservable=new d.Observable,this.onMaterialLODsLoadedObservable=new d.Observable,this._bufferLODs=new Array,this._nodeIndexLOD=null,this._nodeSignalLODs=new Array,this._nodePromiseLODs=new Array,this._nodeBufferLODs=new Array,this._materialIndexLOD=null,this._materialSignalLODs=new Array,this._materialPromiseLODs=new Array,this._materialBufferLODs=new Array,this._loader=e,this.enabled=this._loader.isExtensionUsed(vt)}return e.prototype.dispose=function(){this._loader=null,this._nodeIndexLOD=null,this._nodeSignalLODs.length=0,this._nodePromiseLODs.length=0,this._nodeBufferLODs.length=0,this._materialIndexLOD=null,this._materialSignalLODs.length=0,this._materialPromiseLODs.length=0,this._materialBufferLODs.length=0,this.onMaterialLODsLoadedObservable.clear(),this.onNodeLODsLoadedObservable.clear()},e.prototype.onReady=function(){for(var e=this,t=function(t){var r=Promise.all(n._nodePromiseLODs[t]).then((function(){0!==t&&(e._loader.endPerformanceCounter("Node LOD ".concat(t)),e._loader.log("Loaded node LOD ".concat(t))),e.onNodeLODsLoadedObservable.notifyObservers(t),t!==e._nodePromiseLODs.length-1&&(e._loader.startPerformanceCounter("Node LOD ".concat(t+1)),e._loadBufferLOD(e._nodeBufferLODs,t+1),e._nodeSignalLODs[t]&&e._nodeSignalLODs[t].resolve())}));n._loader._completePromises.push(r)},n=this,r=0;r<this._nodePromiseLODs.length;r++)t(r);var o=function(t){var n=Promise.all(a._materialPromiseLODs[t]).then((function(){0!==t&&(e._loader.endPerformanceCounter("Material LOD ".concat(t)),e._loader.log("Loaded material LOD ".concat(t))),e.onMaterialLODsLoadedObservable.notifyObservers(t),t!==e._materialPromiseLODs.length-1&&(e._loader.startPerformanceCounter("Material LOD ".concat(t+1)),e._loadBufferLOD(e._materialBufferLODs,t+1),e._materialSignalLODs[t]&&e._materialSignalLODs[t].resolve())}));a._loader._completePromises.push(n)},a=this;for(r=0;r<this._materialPromiseLODs.length;r++)o(r)},e.prototype.loadSceneAsync=function(e,t){var n=this._loader.loadSceneAsync(e,t);return this._loadBufferLOD(this._bufferLODs,0),n},e.prototype.loadNodeAsync=function(e,t,n){var r=this;return de.LoadExtensionAsync(e,t,this.name,(function(e,o){var a,i=r._getLODs(e,t,r._loader.gltf.nodes,o.ids);r._loader.logOpen("".concat(e));for(var s=function(e){var t=i[e];0!==e&&(r._nodeIndexLOD=e,r._nodeSignalLODs[e]=r._nodeSignalLODs[e]||new d.Deferred);var o=r._loader.loadNodeAsync("/nodes/".concat(t.index),t,(function(e){n(e),e.setEnabled(!1)})).then((function(t){if(0!==e){var n=i[e-1];n._babylonTransformNode&&(r._disposeTransformNode(n._babylonTransformNode),delete n._babylonTransformNode)}return t.setEnabled(!0),t}));r._nodePromiseLODs[e]=r._nodePromiseLODs[e]||[],0===e?a=o:(r._nodeIndexLOD=null,r._nodePromiseLODs[e].push(o))},l=0;l<i.length;l++)s(l);return r._loader.logClose(),a}))},e.prototype._loadMaterialAsync=function(e,t,n,r,o){var a=this;return this._nodeIndexLOD?null:de.LoadExtensionAsync(e,t,this.name,(function(e,i){var s,l=a._getLODs(e,t,a._loader.gltf.materials,i.ids);a._loader.logOpen("".concat(e));for(var c=function(e){var t=l[e];0!==e&&(a._materialIndexLOD=e);var i=a._loader._loadMaterialAsync("/materials/".concat(t.index),t,n,r,(function(t){0===e&&o(t)})).then((function(t){if(0!==e){o(t);var n=l[e-1]._data;n[r]&&(a._disposeMaterials([n[r].babylonMaterial]),delete n[r])}return t}));a._materialPromiseLODs[e]=a._materialPromiseLODs[e]||[],0===e?s=i:(a._materialIndexLOD=null,a._materialPromiseLODs[e].push(i))},u=0;u<l.length;u++)c(u);return a._loader.logClose(),s}))},e.prototype._loadUriAsync=function(e,t,n){var r=this;if(null!==this._nodeIndexLOD){this._loader.log("deferred");var o=this._nodeIndexLOD-1;return this._nodeSignalLODs[o]=this._nodeSignalLODs[o]||new d.Deferred,this._nodeSignalLODs[this._nodeIndexLOD-1].promise.then((function(){return r._loader.loadUriAsync(e,t,n)}))}return null!==this._materialIndexLOD?(this._loader.log("deferred"),o=this._materialIndexLOD-1,this._materialSignalLODs[o]=this._materialSignalLODs[o]||new d.Deferred,this._materialSignalLODs[o].promise.then((function(){return r._loader.loadUriAsync(e,t,n)}))):null},e.prototype.loadBufferAsync=function(e,t,n,r){if(this._loader.parent.useRangeRequests&&!t.uri){if(!this._loader.bin)throw new Error("".concat(e,": Uri is missing or the binary glTF is missing its binary chunk"));var o=function(e,t){var o=n,a=o+r-1,i=e[t];return i?(i.start=Math.min(i.start,o),i.end=Math.max(i.end,a)):(i={start:o,end:a,loaded:new d.Deferred},e[t]=i),i.loaded.promise.then((function(e){return new Uint8Array(e.buffer,e.byteOffset+n-i.start,r)}))};return this._loader.log("deferred"),null!==this._nodeIndexLOD?o(this._nodeBufferLODs,this._nodeIndexLOD):null!==this._materialIndexLOD?o(this._materialBufferLODs,this._materialIndexLOD):o(this._bufferLODs,0)}return null},e.prototype._loadBufferLOD=function(e,t){var n=e[t];n&&(this._loader.log("Loading buffer range [".concat(n.start,"-").concat(n.end,"]")),this._loader.bin.readAsync(n.start,n.end-n.start+1).then((function(e){n.loaded.resolve(e)}),(function(e){n.loaded.reject(e)})))},e.prototype._getLODs=function(e,t,n,r){if(this.maxLODsToLoad<=0)throw new Error("maxLODsToLoad must be greater than zero");for(var o=new Array,a=r.length-1;a>=0;a--)if(o.push(ue.Get("".concat(e,"/ids/").concat(r[a]),n,r[a])),o.length===this.maxLODsToLoad)return o;return o.push(t),o},e.prototype._disposeTransformNode=function(e){var t=this,n=new Array,r=e.material;r&&n.push(r);for(var o=0,a=e.getChildMeshes();o<a.length;o++){var i=a[o];i.material&&n.push(i.material)}e.dispose();var s=n.filter((function(e){return t._loader.babylonScene.meshes.every((function(t){return t.material!=e}))}));this._disposeMaterials(s)},e.prototype._disposeMaterials=function(e){for(var t={},n=0,r=e;n<r.length;n++){for(var o=0,a=(u=r[n]).getActiveTextures();o<a.length;o++){var i=a[o];t[i.uniqueId]=i}u.dispose()}for(var s in t)for(var l=0,c=this._loader.babylonScene.materials;l<c.length;l++){var u;(u=c[l]).hasTexture(t[s])&&delete t[s]}for(var s in t)t[s].dispose()},e}();de.RegisterExtension(vt,(function(e){return new bt(e)}));var At="MSFT_minecraftMesh",Tt=function(){function e(e){this.name=At,this._loader=e,this.enabled=this._loader.isExtensionUsed(At)}return e.prototype.dispose=function(){this._loader=null},e.prototype.loadMaterialPropertiesAsync=function(e,t,n){var r=this;return de.LoadExtraAsync(e,t,this.name,(function(o,a){if(a){if(!(n instanceof d.PBRMaterial))throw new Error("".concat(o,": Material type not supported"));var i=r._loader.loadMaterialPropertiesAsync(e,t,n);return n.needAlphaBlending()&&(n.forceDepthWrite=!0,n.separateCullingPass=!0),n.backFaceCulling=n.forceDepthWrite,n.twoSidedLighting=!0,i}return null}))},e}();de.RegisterExtension(At,(function(e){return new Tt(e)}));var xt="MSFT_sRGBFactors",Et=function(){function e(e){this.name=xt,this._loader=e,this.enabled=this._loader.isExtensionUsed(xt)}return e.prototype.dispose=function(){this._loader=null},e.prototype.loadMaterialPropertiesAsync=function(e,t,n){var r=this;return de.LoadExtraAsync(e,t,this.name,(function(o,a){if(a){if(!(n instanceof d.PBRMaterial))throw new Error("".concat(o,": Material type not supported"));var i=r._loader.loadMaterialPropertiesAsync(e,t,n),s=n.getScene().getEngine().useExactSrgbConversions;return n.albedoTexture||n.albedoColor.toLinearSpaceToRef(n.albedoColor,s),n.reflectivityTexture||n.reflectivityColor.toLinearSpaceToRef(n.reflectivityColor,s),i}return null}))},e}();de.RegisterExtension(xt,(function(e){return new Et(e)}));var Ot="ExtrasAsMetadata",Mt=function(){function e(e){this.name=Ot,this.enabled=!0,this._loader=e}return e.prototype._assignExtras=function(e,t){if(t.extras&&Object.keys(t.extras).length>0){var n=e.metadata=e.metadata||{};(n.gltf=n.gltf||{}).extras=t.extras}},e.prototype.dispose=function(){this._loader=null},e.prototype.loadNodeAsync=function(e,t,n){var r=this;return this._loader.loadNodeAsync(e,t,(function(e){r._assignExtras(e,t),n(e)}))},e.prototype.loadCameraAsync=function(e,t,n){var r=this;return this._loader.loadCameraAsync(e,t,(function(e){r._assignExtras(e,t),n(e)}))},e.prototype.createMaterial=function(e,t,n){var r=this._loader.createMaterial(e,t,n);return this._assignExtras(r,t),r},e}();de.RegisterExtension(Ot,(function(e){return new Mt(e)}));var Lt=function(){function e(){this.materials=[]}return e.prototype.parseMTL=function(t,n,r,o){if(!(n instanceof ArrayBuffer)){for(var a,i=n.split("\n"),s=/\s+/,l=null,c=0;c<i.length;c++){var u=i[c].trim();if(0!==u.length&&"#"!==u.charAt(0)){var h=u.indexOf(" "),f=h>=0?u.substring(0,h):u;f=f.toLowerCase();var p=h>=0?u.substring(h+1).trim():"";if("newmtl"===f)l&&this.materials.push(l),t._blockEntityCollection=!!o,(l=new d.StandardMaterial(p,t))._parentContainer=o,t._blockEntityCollection=!1;else if("kd"===f&&l)a=p.split(s,3).map(parseFloat),l.diffuseColor=d.Color3.FromArray(a);else if("ka"===f&&l)a=p.split(s,3).map(parseFloat),l.ambientColor=d.Color3.FromArray(a);else if("ks"===f&&l)a=p.split(s,3).map(parseFloat),l.specularColor=d.Color3.FromArray(a);else if("ke"===f&&l)a=p.split(s,3).map(parseFloat),l.emissiveColor=d.Color3.FromArray(a);else if("ns"===f&&l)l.specularPower=parseFloat(p);else if("d"===f&&l)l.alpha=parseFloat(p);else if("map_ka"===f&&l)l.ambientTexture=e._GetTexture(r,p,t);else if("map_kd"===f&&l)l.diffuseTexture=e._GetTexture(r,p,t);else if("map_ks"===f&&l)l.specularTexture=e._GetTexture(r,p,t);else if("map_ns"===f);else if("map_bump"===f&&l){var _=p.split(s),m=_.indexOf("-bm"),y=null;m>=0&&(y=_[m+1],_.splice(m,2)),l.bumpTexture=e._GetTexture(r,_.join(" "),t),l.bumpTexture&&null!==y&&(l.bumpTexture.level=parseFloat(y))}else"map_d"===f&&l&&(l.opacityTexture=e._GetTexture(r,p,t))}}l&&this.materials.push(l)}},e._GetTexture=function(t,n,r){if(!n)return null;var o=t;if("file:"===t){var a=n.lastIndexOf("\\");-1===a&&(a=n.lastIndexOf("/")),o+=a>-1?n.substr(a+1):n}else o+=n;return new d.Texture(o,r,!1,e.INVERT_TEXTURE_Y)},e.INVERT_TEXTURE_Y=!0,e}(),Ct=function(){function e(e,t,n){this._positions=[],this._normals=[],this._uvs=[],this._colors=[],this._meshesFromObj=[],this._indicesForBabylon=[],this._wrappedPositionForBabylon=[],this._wrappedUvsForBabylon=[],this._wrappedColorsForBabylon=[],this._wrappedNormalsForBabylon=[],this._tuplePosNorm=[],this._curPositionInIndices=0,this._hasMeshes=!1,this._unwrappedPositionsForBabylon=[],this._unwrappedColorsForBabylon=[],this._unwrappedNormalsForBabylon=[],this._unwrappedUVForBabylon=[],this._triangles=[],this._materialNameFromObj="",this._objMeshName="",this._increment=1,this._isFirstMaterial=!0,this._grayColor=new d.Color4(.5,.5,.5,1),this._materialToUse=e,this._babylonMeshesArray=t,this._loadingOptions=n}return e.prototype._isInArray=function(e,t){e[t[0]]||(e[t[0]]={normals:[],idx:[]});var n=e[t[0]].normals.indexOf(t[1]);return-1===n?-1:e[t[0]].idx[n]},e.prototype._isInArrayUV=function(e,t){e[t[0]]||(e[t[0]]={normals:[],idx:[],uv:[]});var n=e[t[0]].normals.indexOf(t[1]);return 1!=n&&t[2]===e[t[0]].uv[n]?e[t[0]].idx[n]:-1},e.prototype._setData=function(e,t,n,r,o,a,i){var s;-1===(s=this._loadingOptions.optimizeWithUV?this._isInArrayUV(this._tuplePosNorm,[e,n,t]):this._isInArray(this._tuplePosNorm,[e,n]))?(this._indicesForBabylon.push(this._wrappedPositionForBabylon.length),this._wrappedPositionForBabylon.push(r),this._wrappedUvsForBabylon.push(o),this._wrappedNormalsForBabylon.push(a),void 0!==i&&this._wrappedColorsForBabylon.push(i),this._tuplePosNorm[e].normals.push(n),this._tuplePosNorm[e].idx.push(this._curPositionInIndices++),this._loadingOptions.optimizeWithUV&&this._tuplePosNorm[e].uv.push(t)):this._indicesForBabylon.push(s)},e.prototype._unwrapData=function(){for(var e=0;e<this._wrappedPositionForBabylon.length;e++)this._unwrappedPositionsForBabylon.push(this._wrappedPositionForBabylon[e].x,this._wrappedPositionForBabylon[e].y,this._wrappedPositionForBabylon[e].z),this._unwrappedNormalsForBabylon.push(this._wrappedNormalsForBabylon[e].x,this._wrappedNormalsForBabylon[e].y,this._wrappedNormalsForBabylon[e].z),this._unwrappedUVForBabylon.push(this._wrappedUvsForBabylon[e].x,this._wrappedUvsForBabylon[e].y),this._loadingOptions.importVertexColors&&this._unwrappedColorsForBabylon.push(this._wrappedColorsForBabylon[e].r,this._wrappedColorsForBabylon[e].g,this._wrappedColorsForBabylon[e].b,this._wrappedColorsForBabylon[e].a);this._wrappedPositionForBabylon.length=0,this._wrappedNormalsForBabylon.length=0,this._wrappedUvsForBabylon.length=0,this._wrappedColorsForBabylon.length=0,this._tuplePosNorm.length=0,this._curPositionInIndices=0},e.prototype._getTriangles=function(e,t){for(var n=t;n<e.length-1;n++)this._triangles.push(e[0],e[n],e[n+1])},e.prototype._setDataForCurrentFaceWithPattern1=function(e,t){this._getTriangles(e,t);for(var n=0;n<this._triangles.length;n++){var r=parseInt(this._triangles[n])-1;this._setData(r,0,0,this._positions[r],d.Vector2.Zero(),d.Vector3.Up(),this._loadingOptions.importVertexColors?this._colors[r]:void 0)}this._triangles.length=0},e.prototype._setDataForCurrentFaceWithPattern2=function(e,t){this._getTriangles(e,t);for(var n=0;n<this._triangles.length;n++){var r=this._triangles[n].split("/"),o=parseInt(r[0])-1,a=parseInt(r[1])-1;this._setData(o,a,0,this._positions[o],this._uvs[a],d.Vector3.Up(),this._loadingOptions.importVertexColors?this._colors[o]:void 0)}this._triangles.length=0},e.prototype._setDataForCurrentFaceWithPattern3=function(e,t){this._getTriangles(e,t);for(var n=0;n<this._triangles.length;n++){var r=this._triangles[n].split("/"),o=parseInt(r[0])-1,a=parseInt(r[1])-1,i=parseInt(r[2])-1;this._setData(o,a,i,this._positions[o],this._uvs[a],this._normals[i])}this._triangles.length=0},e.prototype._setDataForCurrentFaceWithPattern4=function(e,t){this._getTriangles(e,t);for(var n=0;n<this._triangles.length;n++){var r=this._triangles[n].split("//"),o=parseInt(r[0])-1,a=parseInt(r[1])-1;this._setData(o,1,a,this._positions[o],d.Vector2.Zero(),this._normals[a],this._loadingOptions.importVertexColors?this._colors[o]:void 0)}this._triangles.length=0},e.prototype._setDataForCurrentFaceWithPattern5=function(e,t){this._getTriangles(e,t);for(var n=0;n<this._triangles.length;n++){var r=this._triangles[n].split("/"),o=this._positions.length+parseInt(r[0]),a=this._uvs.length+parseInt(r[1]),i=this._normals.length+parseInt(r[2]);this._setData(o,a,i,this._positions[o],this._uvs[a],this._normals[i],this._loadingOptions.importVertexColors?this._colors[o]:void 0)}this._triangles.length=0},e.prototype._addPreviousObjMesh=function(){this._meshesFromObj.length>0&&(this._handledMesh=this._meshesFromObj[this._meshesFromObj.length-1],this._unwrapData(),this._indicesForBabylon.reverse(),this._handledMesh.indices=this._indicesForBabylon.slice(),this._handledMesh.positions=this._unwrappedPositionsForBabylon.slice(),this._handledMesh.normals=this._unwrappedNormalsForBabylon.slice(),this._handledMesh.uvs=this._unwrappedUVForBabylon.slice(),this._loadingOptions.importVertexColors&&(this._handledMesh.colors=this._unwrappedColorsForBabylon.slice()),this._indicesForBabylon.length=0,this._unwrappedPositionsForBabylon.length=0,this._unwrappedColorsForBabylon.length=0,this._unwrappedNormalsForBabylon.length=0,this._unwrappedUVForBabylon.length=0)},e.prototype._optimizeNormals=function(e){var t=e.getVerticesData(d.VertexBuffer.PositionKind),n=e.getVerticesData(d.VertexBuffer.NormalKind),r={};if(t&&n){for(var o=0;o<t.length/3;o++)(s=r[i=t[3*o+0]+"_"+t[3*o+1]+"_"+t[3*o+2]])||(s=[],r[i]=s),s.push(o);var a=new d.Vector3;for(var i in r){var s;if(!((s=r[i]).length<2)){var l=s[0];for(o=1;o<s.length;++o){var c=s[o];n[3*l+0]+=n[3*c+0],n[3*l+1]+=n[3*c+1],n[3*l+2]+=n[3*c+2]}for(a.copyFromFloats(n[3*l+0],n[3*l+1],n[3*l+2]),a.normalize(),o=0;o<s.length;++o)n[3*(c=s[o])+0]=a.x,n[3*c+1]=a.y,n[3*c+2]=a.z}}e.setVerticesData(d.VertexBuffer.NormalKind,n)}},e.prototype.parse=function(t,n,r,o,a){for(var i,s=n.split("\n"),l=0;l<s.length;l++){var c=s[l].trim().replace(/\s\s/g," "),u=void 0;if(0!==c.length&&"#"!==c.charAt(0))if(e.VertexPattern.test(c)){if(u=c.match(/[^ ]+/g),this._positions.push(new d.Vector3(parseFloat(u[1]),parseFloat(u[2]),parseFloat(u[3]))),this._loadingOptions.importVertexColors)if(u.length>=7){var h=parseFloat(u[4]),f=parseFloat(u[5]),p=parseFloat(u[6]);this._colors.push(new d.Color4(h>1?h/255:h,f>1?f/255:f,p>1?p/255:p,7===u.length||void 0===u[7]?1:parseFloat(u[7])))}else this._colors.push(this._grayColor)}else if(null!==(u=e.NormalPattern.exec(c)))this._normals.push(new d.Vector3(parseFloat(u[1]),parseFloat(u[2]),parseFloat(u[3])));else if(null!==(u=e.UVPattern.exec(c)))this._uvs.push(new d.Vector2(parseFloat(u[1])*this._loadingOptions.UVScaling.x,parseFloat(u[2])*this._loadingOptions.UVScaling.y));else if(null!==(u=e.FacePattern3.exec(c)))this._setDataForCurrentFaceWithPattern3(u[1].trim().split(" "),1);else if(null!==(u=e.FacePattern4.exec(c)))this._setDataForCurrentFaceWithPattern4(u[1].trim().split(" "),1);else if(null!==(u=e.FacePattern5.exec(c)))this._setDataForCurrentFaceWithPattern5(u[1].trim().split(" "),1);else if(null!==(u=e.FacePattern2.exec(c)))this._setDataForCurrentFaceWithPattern2(u[1].trim().split(" "),1);else if(null!==(u=e.FacePattern1.exec(c)))this._setDataForCurrentFaceWithPattern1(u[1].trim().split(" "),1);else if(e.GroupDescriptor.test(c)||e.ObjectDescriptor.test(c)){var _={name:c.substring(2).trim(),indices:void 0,positions:void 0,normals:void 0,uvs:void 0,colors:void 0,materialName:this._materialNameFromObj};this._addPreviousObjMesh(),this._meshesFromObj.push(_),this._hasMeshes=!0,this._isFirstMaterial=!0,this._increment=1}else e.UseMtlDescriptor.test(c)?(this._materialNameFromObj=c.substring(7).trim(),this._isFirstMaterial&&this._hasMeshes||(this._addPreviousObjMesh(),_={name:(this._objMeshName||"mesh")+"_mm"+this._increment.toString(),indices:void 0,positions:void 0,normals:void 0,uvs:void 0,colors:void 0,materialName:this._materialNameFromObj},this._increment++,this._meshesFromObj.push(_),this._hasMeshes=!0),this._hasMeshes&&this._isFirstMaterial&&(this._meshesFromObj[this._meshesFromObj.length-1].materialName=this._materialNameFromObj,this._isFirstMaterial=!1)):e.MtlLibGroupDescriptor.test(c)?a(c.substring(7).trim()):e.SmoothDescriptor.test(c)||console.log("Unhandled expression at line : "+c)}if(this._hasMeshes&&(this._handledMesh=this._meshesFromObj[this._meshesFromObj.length-1],this._indicesForBabylon.reverse(),this._unwrapData(),this._handledMesh.indices=this._indicesForBabylon,this._handledMesh.positions=this._unwrappedPositionsForBabylon,this._handledMesh.normals=this._unwrappedNormalsForBabylon,this._handledMesh.uvs=this._unwrappedUVForBabylon,this._loadingOptions.importVertexColors&&(this._handledMesh.colors=this._unwrappedColorsForBabylon)),!this._hasMeshes){var m=null;if(this._indicesForBabylon.length)this._indicesForBabylon.reverse(),this._unwrapData();else{for(var y=0,g=this._positions;y<g.length;y++){var v=g[y];this._unwrappedPositionsForBabylon.push(v.x,v.y,v.z)}if(this._normals.length)for(var b=0,A=this._normals;b<A.length;b++){var T=A[b];this._unwrappedNormalsForBabylon.push(T.x,T.y,T.z)}if(this._uvs.length)for(var x=0,E=this._uvs;x<E.length;x++){var O=E[x];this._unwrappedUVForBabylon.push(O.x,O.y)}if(this._colors.length)for(var M=0,L=this._colors;M<L.length;M++){var C=L[M];this._unwrappedColorsForBabylon.push(C.r,C.g,C.b,C.a)}this._materialNameFromObj||((m=new d.StandardMaterial(d.Geometry.RandomId(),r)).pointsCloud=!0,this._materialNameFromObj=m.name,this._normals.length||(m.disableLighting=!0,m.emissiveColor=d.Color3.White()))}this._meshesFromObj.push({name:d.Geometry.RandomId(),indices:this._indicesForBabylon,positions:this._unwrappedPositionsForBabylon,colors:this._unwrappedColorsForBabylon,normals:this._unwrappedNormalsForBabylon,uvs:this._unwrappedUVForBabylon,materialName:this._materialNameFromObj,directMaterial:m})}for(var w=0;w<this._meshesFromObj.length;w++){if(t&&this._meshesFromObj[w].name)if(t instanceof Array){if(-1===t.indexOf(this._meshesFromObj[w].name))continue}else if(this._meshesFromObj[w].name!==t)continue;this._handledMesh=this._meshesFromObj[w],r._blockEntityCollection=!!o;var S=new d.Mesh(this._meshesFromObj[w].name,r);if(S._parentContainer=o,r._blockEntityCollection=!1,this._materialToUse.push(this._meshesFromObj[w].materialName),0!==(null===(i=this._handledMesh.positions)||void 0===i?void 0:i.length)){var N=new d.VertexData;if(N.uvs=this._handledMesh.uvs,N.indices=this._handledMesh.indices,N.positions=this._handledMesh.positions,this._loadingOptions.computeNormals){var R=new Array;d.VertexData.ComputeNormals(this._handledMesh.positions,this._handledMesh.indices,R),N.normals=R}else N.normals=this._handledMesh.normals;this._loadingOptions.importVertexColors&&(N.colors=this._handledMesh.colors),N.applyToMesh(S),this._loadingOptions.invertY&&(S.scaling.y*=-1),this._loadingOptions.optimizeNormals&&this._optimizeNormals(S),this._babylonMeshesArray.push(S),this._handledMesh.directMaterial&&(S.material=this._handledMesh.directMaterial)}else this._babylonMeshesArray.push(S)}},e.ObjectDescriptor=/^o/,e.GroupDescriptor=/^g/,e.MtlLibGroupDescriptor=/^mtllib /,e.UseMtlDescriptor=/^usemtl /,e.SmoothDescriptor=/^s /,e.VertexPattern=/v(\s+[\d|.|+|\-|e|E]+){3,7}/,e.NormalPattern=/vn(\s+[\d|.|+|\-|e|E]+)( +[\d|.|+|\-|e|E]+)( +[\d|.|+|\-|e|E]+)/,e.UVPattern=/vt(\s+[\d|.|+|\-|e|E]+)( +[\d|.|+|\-|e|E]+)/,e.FacePattern1=/f\s+(([\d]{1,}[\s]?){3,})+/,e.FacePattern2=/f\s+((([\d]{1,}\/[\d]{1,}[\s]?){3,})+)/,e.FacePattern3=/f\s+((([\d]{1,}\/[\d]{1,}\/[\d]{1,}[\s]?){3,})+)/,e.FacePattern4=/f\s+((([\d]{1,}\/\/[\d]{1,}[\s]?){3,})+)/,e.FacePattern5=/f\s+(((-[\d]{1,}\/-[\d]{1,}\/-[\d]{1,}[\s]?){3,})+)/,e}(),wt=function(){function e(t){this.name="obj",this.extensions=".obj",this._assetContainer=null,this._loadingOptions=t||e._DefaultLoadingOptions}return Object.defineProperty(e,"INVERT_TEXTURE_Y",{get:function(){return Lt.INVERT_TEXTURE_Y},set:function(e){Lt.INVERT_TEXTURE_Y=e},enumerable:!1,configurable:!0}),Object.defineProperty(e,"_DefaultLoadingOptions",{get:function(){return{computeNormals:e.COMPUTE_NORMALS,optimizeNormals:e.OPTIMIZE_NORMALS,importVertexColors:e.IMPORT_VERTEX_COLORS,invertY:e.INVERT_Y,invertTextureY:e.INVERT_TEXTURE_Y,UVScaling:e.UV_SCALING,materialLoadingFailsSilently:e.MATERIAL_LOADING_FAILS_SILENTLY,optimizeWithUV:e.OPTIMIZE_WITH_UV,skipMaterials:e.SKIP_MATERIALS}},enumerable:!1,configurable:!0}),e.prototype._loadMTL=function(e,t,n,r){var o=t+e;d.Tools.LoadFile(o,n,void 0,void 0,!1,(function(e,t){r(o,t)}))},e.prototype.createPlugin=function(){return new e(e._DefaultLoadingOptions)},e.prototype.canDirectLoad=function(){return!1},e.prototype.importMeshAsync=function(e,t,n,r){return this._parseSolid(e,t,n,r).then((function(e){return{meshes:e,particleSystems:[],skeletons:[],animationGroups:[],transformNodes:[],geometries:[],lights:[]}}))},e.prototype.loadAsync=function(e,t,n){return this.importMeshAsync(null,e,t,n).then((function(){}))},e.prototype.loadAssetContainerAsync=function(e,t,n){var r=this,o=new d.AssetContainer(e);return this._assetContainer=o,this.importMeshAsync(null,e,t,n).then((function(e){return e.meshes.forEach((function(e){return o.meshes.push(e)})),e.meshes.forEach((function(e){var t=e.material;t&&-1==o.materials.indexOf(t)&&(o.materials.push(t),t.getActiveTextures().forEach((function(e){-1==o.textures.indexOf(e)&&o.textures.push(e)})))})),r._assetContainer=null,o})).catch((function(e){throw r._assetContainer=null,e}))},e.prototype._parseSolid=function(e,t,n,r){var o=this,a="",i=new Lt,s=new Array,l=[];new Ct(s,l,this._loadingOptions).parse(e,n,t,this._assetContainer,(function(e){a=e}));var c=[];return""===a||this._loadingOptions.skipMaterials||c.push(new Promise((function(e,n){o._loadMTL(a,r,(function(c){try{i.parseMTL(t,c,r,o._assetContainer);for(var u=0;u<i.materials.length;u++){for(var h=0,f=[],p=void 0;(p=s.indexOf(i.materials[u].name,h))>-1;)f.push(p),h=p+1;if(-1===p&&0===f.length)i.materials[u].dispose();else for(var _=0;_<f.length;_++){var m=l[f[_]],y=i.materials[u];m.material=y,m.getTotalIndices()||(y.pointsCloud=!0)}}e()}catch(t){d.Tools.Warn("Error processing MTL file: '".concat(a,"'")),o._loadingOptions.materialLoadingFailsSilently?e():n(t)}}),(function(t,r){d.Tools.Warn("Error downloading MTL file: '".concat(a,"'")),o._loadingOptions.materialLoadingFailsSilently?e():n(r)}))}))),Promise.all(c).then((function(){return l}))},e.OPTIMIZE_WITH_UV=!0,e.INVERT_Y=!1,e.IMPORT_VERTEX_COLORS=!1,e.COMPUTE_NORMALS=!1,e.OPTIMIZE_NORMALS=!1,e.UV_SCALING=new d.Vector2(1,1),e.SKIP_MATERIALS=!1,e.MATERIAL_LOADING_FAILS_SILENTLY=!0,e}();d.SceneLoader&&d.SceneLoader.RegisterPlugin(new wt);var St=function(){function e(){this.solidPattern=/solid (\S*)([\S\s]*?)endsolid[ ]*(\S*)/g,this.facetsPattern=/facet([\s\S]*?)endfacet/g,this.normalPattern=/normal[\s]+([-+]?[0-9]+\.?[0-9]*([eE][-+]?[0-9]+)?)+[\s]+([-+]?[0-9]*\.?[0-9]+([eE][-+]?[0-9]+)?)+[\s]+([-+]?[0-9]*\.?[0-9]+([eE][-+]?[0-9]+)?)+/g,this.vertexPattern=/vertex[\s]+([-+]?[0-9]+\.?[0-9]*([eE][-+]?[0-9]+)?)+[\s]+([-+]?[0-9]*\.?[0-9]+([eE][-+]?[0-9]+)?)+[\s]+([-+]?[0-9]*\.?[0-9]+([eE][-+]?[0-9]+)?)+/g,this.name="stl",this.extensions={".stl":{isBinary:!0}}}return e.prototype.importMesh=function(e,t,n,r,o){var a;if("string"!=typeof n){if(this._isBinary(n)){var i=new d.Mesh("stlmesh",t);return this._parseBinary(i,n),o&&o.push(i),!0}for(var s=new Uint8Array(n),l="",c=0;c<n.byteLength;c++)l+=String.fromCharCode(s[c]);n=l}for(;a=this.solidPattern.exec(n);){var u=a[1],h=a[3];if(h&&u!=h)return d.Tools.Error("Error in STL, solid name != endsolid name"),!1;if(e&&u)if(e instanceof Array){if(!e.indexOf(u))continue}else if(u!==e)continue;u=u||"stlmesh",i=new d.Mesh(u,t),this._parseASCII(i,a[2]),o&&o.push(i)}return!0},e.prototype.load=function(e,t,n){return this.importMesh(null,e,t,n,null)},e.prototype.loadAssetContainer=function(e,t,n){var r=new d.AssetContainer(e);return e._blockEntityCollection=!0,this.importMesh(null,e,t,n,r.meshes),e._blockEntityCollection=!1,r},e.prototype._isBinary=function(e){var t=new DataView(e);if(t.byteLength<=80)return!1;if(84+50*t.getUint32(80,!0)===t.byteLength)return!0;for(var n=[115,111,108,105,100],r=0;r<5;r++)if(t.getUint8(r)!==n[r])return!0;return!1},e.prototype._parseBinary=function(t,n){for(var r=new DataView(n),o=r.getUint32(80,!0),a=0,i=new Float32Array(3*o*3),s=new Float32Array(3*o*3),l=new Uint32Array(3*o),c=0,u=0;u<o;u++){for(var h=84+50*u,f=r.getFloat32(h,!0),p=r.getFloat32(h+4,!0),_=r.getFloat32(h+8,!0),m=1;m<=3;m++){var y=h+12*m;i[a]=r.getFloat32(y,!0),s[a]=f,e.DO_NOT_ALTER_FILE_COORDINATES?(i[a+1]=r.getFloat32(y+4,!0),i[a+2]=r.getFloat32(y+8,!0),s[a+1]=p,s[a+2]=_):(i[a+2]=r.getFloat32(y+4,!0),i[a+1]=r.getFloat32(y+8,!0),s[a+2]=p,s[a+1]=_),a+=3}e.DO_NOT_ALTER_FILE_COORDINATES?(l[c]=c,l[c+1]=c+2,l[c+2]=c+1,c+=3):(l[c]=c++,l[c]=c++,l[c]=c++)}t.setVerticesData(d.VertexBuffer.PositionKind,i),t.setVerticesData(d.VertexBuffer.NormalKind,s),t.setIndices(l),t.computeWorldMatrix(!0)},e.prototype._parseASCII=function(t,n){for(var r,o=[],a=[],i=[],s=0;r=this.facetsPattern.exec(n);){var l=r[1],c=this.normalPattern.exec(l);if(this.normalPattern.lastIndex=0,c){for(var u=[Number(c[1]),Number(c[5]),Number(c[3])],h=void 0;h=this.vertexPattern.exec(l);)e.DO_NOT_ALTER_FILE_COORDINATES?(o.push(Number(h[1]),Number(h[3]),Number(h[5])),a.push(u[0],u[2],u[1])):(o.push(Number(h[1]),Number(h[5]),Number(h[3])),a.push(u[0],u[1],u[2]));e.DO_NOT_ALTER_FILE_COORDINATES?(i.push(s,s+2,s+1),s+=3):i.push(s++,s++,s++),this.vertexPattern.lastIndex=0}}this.facetsPattern.lastIndex=0,t.setVerticesData(d.VertexBuffer.PositionKind,o),t.setVerticesData(d.VertexBuffer.NormalKind,a),t.setIndices(i),t.computeWorldMatrix(!0)},e.DO_NOT_ALTER_FILE_COORDINATES=!1,e}();d.SceneLoader&&d.SceneLoader.RegisterPlugin(new St);var Nt=void 0!==r.g?r.g:"undefined"!=typeof window?window:void 0;if(void 0!==Nt){for(var Rt in Nt.BABYLON=Nt.BABYLON||{},t)Nt.BABYLON[Rt]=t[Rt];for(var Rt in e)Nt.BABYLON[Rt]=e[Rt]}var Pt=void 0!==r.g?r.g:"undefined"!=typeof window?window:void 0;if(void 0!==Pt)for(var It in Pt.BABYLON=Pt.BABYLON||{},Pt.BABYLON.GLTF1=Pt.BABYLON.GLTF1||{},n)Pt.BABYLON.GLTF1[It]=n[It];var Ft=void 0!==r.g?r.g:"undefined"!=typeof window?window:void 0;if(void 0!==Ft){Ft.BABYLON=Ft.BABYLON||{};var Bt=Ft.BABYLON;Bt.GLTF2=Bt.GLTF2||{},Bt.GLTF2.Loader=Bt.GLTF2.Loader||{},Bt.GLTF2.Loader.Extensions=Bt.GLTF2.Loader.Extensions||{};var Vt=[];for(var Dt in i)Bt.GLTF2.Loader.Extensions[Dt]=i[Dt],Vt.push(Dt);for(var Dt in a)Bt.GLTF2.Loader[Dt]=a[Dt],Vt.push(Dt);for(var Dt in s)Vt.indexOf(Dt)>-1||(Bt.GLTF2[Dt]=s[Dt])}var kt=void 0!==r.g?r.g:"undefined"!=typeof window?window:void 0;if(void 0!==kt)for(var Gt in l)kt.BABYLON[Gt]||(kt.BABYLON[Gt]=l[Gt]);var Ut=void 0!==r.g?r.g:"undefined"!=typeof window?window:void 0;if(void 0!==Ut)for(var jt in c)Ut.BABYLON[jt]||(Ut.BABYLON[jt]=c[jt]);const Ht=u})(),o.default})()));
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