var BABYLON;!(function(e){var t;!(function(e){e[e.AUTO=0]="AUTO",e[e.PASS_THROUGH=1]="PASS_THROUGH",e[e.FORCE_RIGHT_HANDED=2]="FORCE_RIGHT_HANDED"})(t=e.GLTFLoaderCoordinateSystemMode||(e.GLTFLoaderCoordinateSystemMode={}));var r=(function(){function e(){this.coordinateSystemMode=t.AUTO,this.name="gltf",this.extensions={".gltf":{isBinary:!1},".glb":{isBinary:!0}}}return e.prototype.importMeshAsync=function(t,r,n,o,i,a,s){var l=e._parse(n,s);if(l){this.onParsed&&this.onParsed(l);var u=this._getLoader(l,s);u&&u.importMeshAsync(t,r,l,o,i,a,s)}},e.prototype.loadAsync=function(t,r,n,o,i,a){var s=e._parse(r,a);if(s){this.onParsed&&this.onParsed(s);var l=this._getLoader(s,a);if(l)return l.loadAsync(t,s,n,o,i,a)}},e.prototype.canDirectLoad=function(e){return e.indexOf("scene")!==-1&&e.indexOf("node")!==-1},e._parse=function(t,r){try{return t instanceof ArrayBuffer?e._parseBinary(t,r):{json:JSON.parse(t),bin:null}}catch(e){return r(e.message),null}},e.prototype._getLoader=function(t,r){var n={major:2,minor:0},o=t.json.asset||{},i=e._parseVersion(o.version);if(!i)return r("Invalid version: "+o.version),null;if(void 0!==o.minVersion){var a=e._parseVersion(o.minVersion);if(!a)return r("Invalid minimum version: "+o.minVersion),null;if(e._compareVersion(a,n)>0)return r("Incompatible minimum version: "+o.minVersion),null}var s={1:e.CreateGLTFLoaderV1,2:e.CreateGLTFLoaderV2},l=s[i.major];return l?l(this):(r("Unsupported version: "+o.version),null)},e._parseBinary=function(t,r){var o={Magic:1179937895},i=new n(t),a=i.readUint32();if(a!==o.Magic)return r("Unexpected magic: "+a),null;var s=i.readUint32();switch(s){case 1:return e._parseV1(i,r);case 2:return e._parseV2(i,r)}return r("Unsupported version: "+s),null},e._parseV1=function(t,r){var n={JSON:0},o=t.readUint32();if(o!=t.getLength())return r("Length in header does not match actual data length: "+o+" != "+t.getLength()),null;var i,a=t.readUint32(),s=t.readUint32();switch(s){case 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BABYLON;!(function(e){!(function(e){!(function(e){e[e.BYTE=5120]="BYTE",e[e.UNSIGNED_BYTE=5121]="UNSIGNED_BYTE",e[e.SHORT=5122]="SHORT",e[e.UNSIGNED_SHORT=5123]="UNSIGNED_SHORT",e[e.FLOAT=5126]="FLOAT"})(e.EComponentType||(e.EComponentType={}));!(function(e){e[e.FRAGMENT=35632]="FRAGMENT",e[e.VERTEX=35633]="VERTEX"})(e.EShaderType||(e.EShaderType={}));!(function(e){e[e.BYTE=5120]="BYTE",e[e.UNSIGNED_BYTE=5121]="UNSIGNED_BYTE",e[e.SHORT=5122]="SHORT",e[e.UNSIGNED_SHORT=5123]="UNSIGNED_SHORT",e[e.INT=5124]="INT",e[e.UNSIGNED_INT=5125]="UNSIGNED_INT",e[e.FLOAT=5126]="FLOAT",e[e.FLOAT_VEC2=35664]="FLOAT_VEC2",e[e.FLOAT_VEC3=35665]="FLOAT_VEC3",e[e.FLOAT_VEC4=35666]="FLOAT_VEC4",e[e.INT_VEC2=35667]="INT_VEC2",e[e.INT_VEC3=35668]="INT_VEC3",e[e.INT_VEC4=35669]="INT_VEC4",e[e.BOOL=35670]="BOOL",e[e.BOOL_VEC2=35671]="BOOL_VEC2",e[e.BOOL_VEC3=35672]="BOOL_VEC3",e[e.BOOL_VEC4=35673]="BOOL_VEC4",e[e.FLOAT_MAT2=35674]="FLOAT_MAT2",e[e.FLOAT_MAT3=35675]="FLOAT_MAT3",e[e.FLOAT_MAT4=35676]="FLOAT_MAT4",e[e.SAMPLER_2D=35678]="SAMPLER_2D"})(e.EParameterType||(e.EParameterType={}));!(function(e){e[e.CLAMP_TO_EDGE=33071]="CLAMP_TO_EDGE",e[e.MIRRORED_REPEAT=33648]="MIRRORED_REPEAT",e[e.REPEAT=10497]="REPEAT"})(e.ETextureWrapMode||(e.ETextureWrapMode={}));!(function(e){e[e.NEAREST=9728]="NEAREST",e[e.LINEAR=9728]="LINEAR",e[e.NEAREST_MIPMAP_NEAREST=9984]="NEAREST_MIPMAP_NEAREST",e[e.LINEAR_MIPMAP_NEAREST=9985]="LINEAR_MIPMAP_NEAREST",e[e.NEAREST_MIPMAP_LINEAR=9986]="NEAREST_MIPMAP_LINEAR",e[e.LINEAR_MIPMAP_LINEAR=9987]="LINEAR_MIPMAP_LINEAR"})(e.ETextureFilterType||(e.ETextureFilterType={}));!(function(e){e[e.ALPHA=6406]="ALPHA",e[e.RGB=6407]="RGB",e[e.RGBA=6408]="RGBA",e[e.LUMINANCE=6409]="LUMINANCE",e[e.LUMINANCE_ALPHA=6410]="LUMINANCE_ALPHA"})(e.ETextureFormat||(e.ETextureFormat={}));!(function(e){e[e.FRONT=1028]="FRONT",e[e.BACK=1029]="BACK",e[e.FRONT_AND_BACK=1032]="FRONT_AND_BACK"})(e.ECullingType||(e.ECullingType={}));!(function(e){e[e.ZERO=0]="ZERO",e[e.ONE=1]="ONE",e[e.SRC_COLOR=768]="SRC_COLOR",e[e.ONE_MINUS_SRC_COLOR=769]="ONE_MINUS_SRC_COLOR",e[e.DST_COLOR=774]="DST_COLOR",e[e.ONE_MINUS_DST_COLOR=775]="ONE_MINUS_DST_COLOR",e[e.SRC_ALPHA=770]="SRC_ALPHA",e[e.ONE_MINUS_SRC_ALPHA=771]="ONE_MINUS_SRC_ALPHA",e[e.DST_ALPHA=772]="DST_ALPHA",e[e.ONE_MINUS_DST_ALPHA=773]="ONE_MINUS_DST_ALPHA",e[e.CONSTANT_COLOR=32769]="CONSTANT_COLOR",e[e.ONE_MINUS_CONSTANT_COLOR=32770]="ONE_MINUS_CONSTANT_COLOR",e[e.CONSTANT_ALPHA=32771]="CONSTANT_ALPHA",e[e.ONE_MINUS_CONSTANT_ALPHA=32772]="ONE_MINUS_CONSTANT_ALPHA",e[e.SRC_ALPHA_SATURATE=776]="SRC_ALPHA_SATURATE"})(e.EBlendingFunction||(e.EBlendingFunction={}))})(e.GLTF1||(e.GLTF1={}))})(BABYLON||(BABYLON={}));var BABYLON;!(function(e){!(function(t){var r;!(function(e){e[e.IDENTIFIER=1]="IDENTIFIER",e[e.UNKNOWN=2]="UNKNOWN",e[e.END_OF_INPUT=3]="END_OF_INPUT"})(r||(r={}));var n=(function(){function e(e){this._pos=0,this.isLetterOrDigitPattern=/^[a-zA-Z0-9]+$/,this._toParse=e,this._maxPos=e.length}return e.prototype.getNextToken=function(){if(this.isEnd())return r.END_OF_INPUT;if(this.currentString=this.read(),this.currentToken=r.UNKNOWN,"_"===this.currentString||this.isLetterOrDigitPattern.test(this.currentString))for(this.currentToken=r.IDENTIFIER,this.currentIdentifier=this.currentString;!this.isEnd()&&(this.isLetterOrDigitPattern.test(this.currentString=this.peek())||"_"===this.currentString);)this.currentIdentifier+=this.currentString,this.forward();return this.currentToken},e.prototype.peek=function(){return this._toParse[this._pos]},e.prototype.read=function(){return this._toParse[this._pos++]},e.prototype.forward=function(){this._pos++},e.prototype.isEnd=function(){return this._pos>=this._maxPos},e})(),o=["MODEL","VIEW","PROJECTION","MODELVIEW","MODELVIEWPROJECTION","JOINTMATRIX"],i=["world","view","projection","worldView","worldViewProjection","mBones"],a=["translation","rotation","scale"],s=["position","rotationQuaternion","scaling"],l=function(e,t){for(var r in e){var n=e[r];t.buffers[r]=n,t.buffersCount++}},u=function(e,t){for(var r in e){var n=e[r];t.shaders[r]=n,t.shaderscount++}},c=function(e,t,r){for(var n in e){var o=e[n];r[t][n]=o}},f=function(e){if(e)for(var t=0;t<e.length/2;t++)e[2*t+1]=1-e[2*t+1]},d=function(e){if("NORMAL"===e.semantic)return"normal";if("POSITION"===e.semantic)return"position";if("JOINT"===e.semantic)return"matricesIndices";if("WEIGHT"===e.semantic)return"matricesWeights";if("COLOR"===e.semantic)return"color";if(e.semantic.indexOf("TEXCOORD_")!==-1){var t=Number(e.semantic.split("_")[1]);return"uv"+(0===t?"":t+1)}return null},h=function(r){for(var n in r.animations)for(var o=r.animations[n],i=null,l=0;l<o.channels.length;l++){var u=o.channels[l],c=o.samplers[u.sampler];if(c){var f=null,d=null;o.parameters?(f=o.parameters[c.input],d=o.parameters[c.output]):(f=c.input,d=c.output);var h=t.GLTFUtils.GetBufferFromAccessor(r,r.accessors[f]),T=t.GLTFUtils.GetBufferFromAccessor(r,r.accessors[d]),E=u.target.id,p=r.scene.getNodeByID(E);if(null===p&&(p=r.scene.getNodeByName(E)),null!==p){var _=p instanceof e.Bone,A=u.target.path,m=a.indexOf(A);m!==-1&&(A=s[m]);var y=e.Animation.ANIMATIONTYPE_MATRIX;_||("rotationQuaternion"===A?(y=e.Animation.ANIMATIONTYPE_QUATERNION,p.rotationQuaternion=new e.Quaternion):y=e.Animation.ANIMATIONTYPE_VECTOR3);var g=null,L=[],v=0,b=!1;_&&i&&i.getKeys().length===h.length&&(g=i,b=!0),b||(g=new e.Animation(n,_?"_matrix":A,1,y,e.Animation.ANIMATIONLOOPMODE_CYCLE));for(var N=0;N<h.length;N++){var x=null;if("rotationQuaternion"===A?(x=e.Quaternion.FromArray([T[v],T[v+1],T[v+2],T[v+3]]),v+=4):(x=e.Vector3.FromArray([T[v],T[v+1],T[v+2]]),v+=3),_){var M=p,O=e.Vector3.Zero(),F=new e.Quaternion,R=e.Vector3.Zero(),S=M.getBaseMatrix();b&&(S=i.getKeys()[N].value),S.decompose(R,F,O),"position"===A?O=x:"rotationQuaternion"===A?F=x:R=x,x=e.Matrix.Compose(R,F,O)}b?i.getKeys()[N].value=x:L.push({frame:h[N],value:x})}b||(g.setKeys(L),p.animations.push(g)),i=g,r.scene.stopAnimation(p),r.scene.beginAnimation(p,0,h[h.length-1],!0,1)}else e.Tools.Warn("Creating animation named "+n+". But cannot find node named "+E+" to attach to")}}},T=function(t){var r=null;if(t.translation||t.rotation||t.scale){var n=e.Vector3.FromArray(t.scale||[1,1,1]),o=e.Quaternion.FromArray(t.rotation||[0,0,0,1]),i=e.Vector3.FromArray(t.translation||[0,0,0]);r=e.Matrix.Compose(n,o,i)}else r=e.Matrix.FromArray(t.matrix);return r},E=function(t,r,n,o){for(var i=0;i<o.bones.length;i++)if(o.bones[i].name===n)return o.bones[i];var a=t.nodes;for(var s in a){var l=a[s];if(l.jointName)for(var u=l.children,i=0;i<u.length;i++){var c=t.nodes[u[i]];if(c.jointName&&c.jointName===n){var f=T(l),d=new e.Bone(l.name,o,E(t,r,l.jointName,o),f);return d.id=s,d}}}return null},p=function(e,t){for(var r=0;r<e.length;r++)for(var n=e[r],o=0;o<n.node.children.length;o++){var i=n.node.children[o];if(i===t)return n.bone}return null},_=function(e,t){var r=e.nodes,n=r[t];if(n)return{node:n,id:t};for(var o in r)if(n=r[o],n.jointName===t)return{node:n,id:o};return null},A=function(e,t){for(var r=0;r<e.jointNames.length;r++)if(e.jointNames[r]===t)return!0;return!1},m=function(t,r,n,o){for(var i in t.nodes){var a=t.nodes[i],s=i;if(a.jointName&&!A(n,a.jointName)){var l=T(a),u=new e.Bone(a.name,r,null,l);u.id=s,o.push({bone:u,node:a,id:s})}}for(var c=0;c<o.length;c++)for(var f=o[c],d=f.node.children,h=0;h<d.length;h++){for(var E=null,p=0;p<o.length;p++)if(o[p].id===d[h]){E=o[p];break}E&&(E.bone._parent=f.bone,f.bone.children.push(E.bone))}},y=function(t,r,n,o,i){if(o||(o=new e.Skeleton(r.name,"",t.scene)),!r.babylonSkeleton)return o;var a=[],s=[];m(t,o,r,a),o.bones=[];for(var l=0;l<r.jointNames.length;l++){var u=_(t,r.jointNames[l]),c=u.node;if(c){var i=u.id,f=t.scene.getBoneByID(i);if(f)o.bones.push(f);else{for(var d=!1,h=null,A=0;A<l;A++){var y=_(t,r.jointNames[A]).node;if(y){var g=y.children;if(g){d=!1;for(var L=0;L<g.length;L++)if(g[L]===i){h=E(t,r,r.jointNames[A],o),d=!0;break}if(d)break}}else e.Tools.Warn("Joint named "+r.jointNames[A]+" does not exist when looking for 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Float32Array(v.length),m.normals.set(v);else if("POSITION"===b){if(e.GLTFFileLoader.HomogeneousCoordinates){m.positions=new Float32Array(v.length-v.length/4);for(var N=0;N<v.length;N+=4)m.positions[N]=v[N],m.positions[N+1]=v[N+1],m.positions[N+2]=v[N+2]}else m.positions=new Float32Array(v.length),m.positions.set(v);d.push(m.positions.length)}else if(b.indexOf("TEXCOORD_")!==-1){var x=Number(b.split("_")[1]),M=e.VertexBuffer.UVKind+(0===x?"":x+1),O=new Float32Array(v.length);O.set(v),f(O),m.set(O,M)}else"JOINT"===b?(m.matricesIndices=new Float32Array(v.length),m.matricesIndices.set(v)):"WEIGHT"===b?(m.matricesWeights=new Float32Array(v.length),m.matricesWeights.set(v)):"COLOR"===b&&(m.colors=new Float32Array(v.length),m.colors.set(v));if(L=r.accessors[y.indices])v=t.GLTFUtils.GetBufferFromAccessor(r,L),m.indices=new Int32Array(v.length),m.indices.set(v),T.push(m.indices.length);else{for(var F=[],N=0;N<m.positions.length/3;N++)F.push(N);m.indices=new Int32Array(F),T.push(m.indices.length)}l.merge(m),m=void 0;var R=r.scene.getMaterialByID(y.material);s.subMaterials.push(null===R?t.GLTFUtils.GetDefaultMaterial(r.scene):R),c.push(0===c.length?0:c[c.length-1]+d[d.length-2]),h.push(0===h.length?0:h[h.length-1]+T[T.length-2])}}u.setAllVerticesData(l,!1),a.computeWorldMatrix(!0),a.subMeshes=[];for(var S=0,E=0;E<o.length;E++){var p=o[E],_=r.meshes[p];if(_)for(var A=0;A<_.primitives.length;A++)_.primitives[A].mode,e.SubMesh.AddToMesh(S,c[S],d[S],h[S],T[S],a,a,!0),S++}return a},L=function(e,t,r,n){e.position&&(e.position=t),(e.rotationQuaternion||e.rotation)&&(e.rotationQuaternion=r),e.scaling&&(e.scaling=n)},v=function(t,r,n){if(r.matrix){var o=new e.Vector3(0,0,0),i=new e.Quaternion,a=new e.Vector3(0,0,0);e.Matrix.FromArray(r.matrix).decompose(a,i,o),L(t,o,i,a)}else L(t,e.Vector3.FromArray(r.translation),e.Quaternion.FromArray(r.rotation),e.Vector3.FromArray(r.scale));t.computeWorldMatrix(!0)},b=function(t,r,n,o){var i=null;if(t.importOnlyMeshes&&(r.skin||r.meshes)&&t.importMeshesNames.length>0&&t.importMeshesNames.indexOf(r.name)===-1)return null;if(r.skin){if(r.meshes){var a=t.skins[r.skin],s=g(t,r,r.meshes,n,r.babylonNode);s.skeleton=t.scene.getLastSkeletonByID(r.skin),null===s.skeleton&&(s.skeleton=y(t,a,0,a.babylonSkeleton,r.skin),a.babylonSkeleton||(a.babylonSkeleton=s.skeleton)),i=s}}else if(r.meshes){var s=g(t,r,r.mesh?[r.mesh]:r.meshes,n,r.babylonNode);i=s}else if(!r.light||r.babylonNode||t.importOnlyMeshes){if(r.camera&&!r.babylonNode&&!t.importOnlyMeshes){var l=t.cameras[r.camera];if(l)if("orthographic"===l.type){var u=new e.FreeCamera(r.camera,e.Vector3.Zero(),t.scene);u.name=r.name,u.mode=e.Camera.ORTHOGRAPHIC_CAMERA,u.attachControl(t.scene.getEngine().getRenderingCanvas()),i=u}else if("perspective"===l.type){var c=l[l.type],f=new e.FreeCamera(r.camera,e.Vector3.Zero(),t.scene);f.name=r.name,f.attachControl(t.scene.getEngine().getRenderingCanvas()),c.aspectRatio||(c.aspectRatio=t.scene.getEngine().getRenderWidth()/t.scene.getEngine().getRenderHeight()),c.znear&&c.zfar&&(f.maxZ=c.zfar,f.minZ=c.znear),i=f}}}else{var d=t.lights[r.light];if(d)if("ambient"===d.type){var h=d[d.type],T=new e.HemisphericLight(r.light,e.Vector3.Zero(),t.scene);T.name=r.name,h.color&&(T.diffuse=e.Color3.FromArray(h.color)),i=T}else if("directional"===d.type){var E=d[d.type],p=new e.DirectionalLight(r.light,e.Vector3.Zero(),t.scene);p.name=r.name,E.color&&(p.diffuse=e.Color3.FromArray(E.color)),i=p}else if("point"===d.type){var _=d[d.type],A=new e.PointLight(r.light,e.Vector3.Zero(),t.scene);A.name=r.name,_.color&&(A.diffuse=e.Color3.FromArray(_.color)),i=A}else if("spot"===d.type){var m=d[d.type],b=new e.SpotLight(r.light,e.Vector3.Zero(),e.Vector3.Zero(),0,0,t.scene);b.name=r.name,m.color&&(b.diffuse=e.Color3.FromArray(m.color)),m.fallOfAngle&&(b.angle=m.fallOfAngle),m.fallOffExponent&&(b.exponent=m.fallOffExponent),i=b}}if(!r.jointName){if(r.babylonNode)return r.babylonNode;if(null===i){var N=new e.Mesh(r.name,t.scene);r.babylonNode=N,i=N}}if(null!==i){if(r.matrix&&i instanceof e.Mesh)v(i,r);else{var x=r.translation||[0,0,0],M=r.rotation||[0,0,0,1],O=r.scale||[1,1,1];L(i,e.Vector3.FromArray(x),e.Quaternion.FromArray(M),e.Vector3.FromArray(O))}i.updateCache(!0),r.babylonNode=i}return i},N=function(e,t,r,n){var o=e.nodes[t],i=null;if(n=!(e.importOnlyMeshes&&!n)||(e.importMeshesNames.indexOf(o.name)!==-1||0===e.importMeshesNames.length),!o.jointName&&n&&null!==(i=b(e,o,t))&&(i.id=t,i.parent=r),o.children)for(var a=0;a<o.children.length;a++)N(e,o.children[a],i,n)},x=function(e){var t=e.currentScene;if(t)for(var r=0;r<t.nodes.length;r++)N(e,t.nodes[r],null);else for(var n in 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B=(function(){function r(){}return r.RegisterExtension=function(t){if(r.Extensions[t.name])return void e.Tools.Error('Tool with the same name "'+t.name+'" already exists');r.Extensions[t.name]=t},r.prototype.importMeshAsync=function(r,n,o,i,a,s,l){var u=this;return n.useRightHandedSystem=!0,t.GLTFLoaderExtension.LoadRuntimeAsync(n,o,i,(function(t){t.importOnlyMeshes=!0,""===r?t.importMeshesNames=[]:"string"==typeof r?t.importMeshesNames=[r]:!r||r instanceof Array?(t.importMeshesNames=[],e.Tools.Warn("Argument meshesNames must be of type string or string[]")):t.importMeshesNames=[r],u._createNodes(t);var n=new Array,o=new Array;for(var i in t.nodes){var l=t.nodes[i];l.babylonNode instanceof e.AbstractMesh&&n.push(l.babylonNode)}for(var c in t.skins){var f=t.skins[c];f.babylonSkeleton instanceof 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e.loadRuntimeAsync(r,n,o,i,a)}),(function(){setTimeout((function(){i(e.GLTFLoaderBase.CreateRuntime(n.json,r,o))}))}))},t.LoadRuntimeExtensionsAsync=function(e,r,n){t.ApplyExtensions((function(t){return t.loadRuntimeExtensionsAsync(e,r,n)}),(function(){setTimeout((function(){r()}))}))},t.LoadBufferAsync=function(r,n,o,i,a){t.ApplyExtensions((function(e){return e.loadBufferAsync(r,n,o,i,a)}),(function(){e.GLTFLoaderBase.LoadBufferAsync(r,n,o,i,a)}))},t.LoadTextureAsync=function(e,r,n,o){t.LoadTextureBufferAsync(e,r,(function(i){return t.CreateTextureAsync(e,r,i,n,o)}),o)},t.LoadShaderStringAsync=function(r,n,o,i){t.ApplyExtensions((function(e){return e.loadShaderStringAsync(r,n,o,i)}),(function(){e.GLTFLoaderBase.LoadShaderStringAsync(r,n,o,i)}))},t.LoadMaterialAsync=function(r,n,o,i){t.ApplyExtensions((function(e){return e.loadMaterialAsync(r,n,o,i)}),(function(){e.GLTFLoaderBase.LoadMaterialAsync(r,n,o,i)}))},t.LoadTextureBufferAsync=function(r,n,o,i){t.ApplyExtensions((function(e){return e.loadTextureBufferAsync(r,n,o,i)}),(function(){e.GLTFLoaderBase.LoadTextureBufferAsync(r,n,o,i)}))},t.CreateTextureAsync=function(r,n,o,i,a){t.ApplyExtensions((function(e){return e.createTextureAsync(r,n,o,i,a)}),(function(){e.GLTFLoaderBase.CreateTextureAsync(r,n,o,i,a)}))},t.ApplyExtensions=function(t,r){for(var n in e.GLTFLoader.Extensions){if(t(e.GLTFLoader.Extensions[n]))return}r()},t})();e.GLTFLoaderExtension=t})(e.GLTF1||(e.GLTF1={}))})(BABYLON||(BABYLON={}));var __extends=this&&this.__extends||(function(){var e=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var r in t)t.hasOwnProperty(r)&&(e[r]=t[r])};return function(t,r){function n(){this.constructor=t}e(t,r),t.prototype=null===r?Object.create(r):(n.prototype=r.prototype,new n)}})(),BABYLON;!(function(e){!(function(e){var t=(function(t){function r(){return t.call(this,"KHR_binary_glTF")||this}return __extends(r,t),r.prototype.loadRuntimeAsync=function(t,r,n,o,i){var a=r.json.extensionsUsed;return!(!a||a.indexOf(this.name)===-1)&&(this._bin=r.bin,o(e.GLTFLoaderBase.CreateRuntime(r.json,t,n)),!0)},r.prototype.loadBufferAsync=function(e,t,r,n){return e.extensionsUsed.indexOf(this.name)!==-1&&("binary_glTF"===t&&(r(this._bin),!0))},r.prototype.loadTextureBufferAsync=function(t,r,n,o){var i=t.textures[r],a=t.images[i.source];if(!(a.extensions&&this.name in a.extensions))return!1;var s=a.extensions[this.name],l=t.bufferViews[s.bufferView];return n(e.GLTFUtils.GetBufferFromBufferView(t,l,0,l.byteLength,e.EComponentType.UNSIGNED_BYTE)),!0},r.prototype.loadShaderStringAsync=function(t,r,n,o){var i=t.shaders[r];if(!(i.extensions&&this.name in i.extensions))return!1;var a=i.extensions[this.name],s=t.bufferViews[a.bufferView],l=e.GLTFUtils.GetBufferFromBufferView(t,s,0,s.byteLength,e.EComponentType.UNSIGNED_BYTE);return setTimeout((function(){var t=e.GLTFUtils.DecodeBufferToText(l);n(t)})),!0},r})(e.GLTFLoaderExtension);e.GLTFBinaryExtension=t,e.GLTFLoader.RegisterExtension(new t)})(e.GLTF1||(e.GLTF1={}))})(BABYLON||(BABYLON={}));var __extends=this&&this.__extends||(function(){var e=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var r in t)t.hasOwnProperty(r)&&(e[r]=t[r])};return function(t,r){function n(){this.constructor=t}e(t,r),t.prototype=null===r?Object.create(r):(n.prototype=r.prototype,new n)}})(),BABYLON;!(function(e){!(function(t){var r=(function(r){function n(){return r.call(this,"KHR_materials_common")||this}return __extends(n,r),n.prototype.loadRuntimeExtensionsAsync=function(t,r,n){if(!t.extensions)return!1;var o=t.extensions[this.name];if(!o)return!1;var i=o.lights;if(i)for(var a in i){var s=i[a];switch(s.type){case"ambient":var l=new e.HemisphericLight(s.name,new e.Vector3(0,1,0),t.scene),u=s.ambient;l.diffuse=e.Color3.FromArray(u.color||[1,1,1]);break;case"point":var c=new e.PointLight(s.name,new e.Vector3(10,10,10),t.scene),f=s.point;c.diffuse=e.Color3.FromArray(f.color||[1,1,1]);break;case"directional":var d=new e.DirectionalLight(s.name,new e.Vector3(0,-1,0),t.scene),h=s.directional;d.diffuse=e.Color3.FromArray(h.color||[1,1,1]);break;case"spot":var T=s.spot,E=new e.SpotLight(s.name,new e.Vector3(0,10,0),new e.Vector3(0,-1,0),s.spot.fallOffAngle||Math.PI,s.spot.fallOffExponent||0,t.scene);E.diffuse=e.Color3.FromArray(T.color||[1,1,1]);break;default:e.Tools.Warn('GLTF Material Common extension: light type "'+s.type+"” not supported")}}return!1},n.prototype.loadMaterialAsync=function(t,r,n,o){var i=t.materials[r];if(!i||!i.extensions)return!1;var a=i.extensions[this.name];if(!a)return!1;var s=new e.StandardMaterial(r,t.scene);return s.sideOrientation=e.Material.CounterClockWiseSideOrientation,"CONSTANT"===a.technique&&(s.disableLighting=!0),s.backFaceCulling=void 0!==a.doubleSided&&!a.doubleSided,s.alpha=void 0===a.values.transparency?1:a.values.transparency,s.specularPower=void 0===a.values.shininess?0:a.values.shininess,"string"==typeof a.values.ambient?this._loadTexture(t,a.values.ambient,s,"ambientTexture",o):s.ambientColor=e.Color3.FromArray(a.values.ambient||[0,0,0]),"string"==typeof a.values.diffuse?this._loadTexture(t,a.values.diffuse,s,"diffuseTexture",o):s.diffuseColor=e.Color3.FromArray(a.values.diffuse||[0,0,0]),"string"==typeof a.values.emission?this._loadTexture(t,a.values.emission,s,"emissiveTexture",o):s.emissiveColor=e.Color3.FromArray(a.values.emission||[0,0,0]),"string"==typeof a.values.specular?this._loadTexture(t,a.values.specular,s,"specularTexture",o):s.specularColor=e.Color3.FromArray(a.values.specular||[0,0,0]),!0},n.prototype._loadTexture=function(e,r,n,o,i){t.GLTFLoaderBase.LoadTextureBufferAsync(e,r,(function(a){t.GLTFLoaderBase.CreateTextureAsync(e,r,a,(function(e){return n[o]=e}),i)}),i)},n})(t.GLTFLoaderExtension);t.GLTFMaterialsCommonExtension=r,t.GLTFLoader.RegisterExtension(new r)})(e.GLTF1||(e.GLTF1={}))})(BABYLON||(BABYLON={}));var BABYLON;!(function(e){!(function(e){!(function(e){e[e.BYTE=5120]="BYTE",e[e.UNSIGNED_BYTE=5121]="UNSIGNED_BYTE",e[e.SHORT=5122]="SHORT",e[e.UNSIGNED_SHORT=5123]="UNSIGNED_SHORT",e[e.UNSIGNED_INT=5125]="UNSIGNED_INT",e[e.FLOAT=5126]="FLOAT"})(e.EComponentType||(e.EComponentType={}));!(function(e){e[e.POINTS=0]="POINTS",e[e.LINES=1]="LINES",e[e.LINE_LOOP=2]="LINE_LOOP",e[e.LINE_STRIP=3]="LINE_STRIP",e[e.TRIANGLES=4]="TRIANGLES",e[e.TRIANGLE_STRIP=5]="TRIANGLE_STRIP",e[e.TRIANGLE_FAN=6]="TRIANGLE_FAN"})(e.EMeshPrimitiveMode||(e.EMeshPrimitiveMode={}));!(function(e){e[e.NEAREST=9728]="NEAREST",e[e.LINEAR=9729]="LINEAR"})(e.ETextureMagFilter||(e.ETextureMagFilter={}));!(function(e){e[e.NEAREST=9728]="NEAREST",e[e.LINEAR=9729]="LINEAR",e[e.NEAREST_MIPMAP_NEAREST=9984]="NEAREST_MIPMAP_NEAREST",e[e.LINEAR_MIPMAP_NEAREST=9985]="LINEAR_MIPMAP_NEAREST",e[e.NEAREST_MIPMAP_LINEAR=9986]="NEAREST_MIPMAP_LINEAR",e[e.LINEAR_MIPMAP_LINEAR=9987]="LINEAR_MIPMAP_LINEAR"})(e.ETextureMinFilter||(e.ETextureMinFilter={}));!(function(e){e[e.CLAMP_TO_EDGE=33071]="CLAMP_TO_EDGE",e[e.MIRRORED_REPEAT=33648]="MIRRORED_REPEAT",e[e.REPEAT=10497]="REPEAT"})(e.ETextureWrapMode||(e.ETextureWrapMode={}))})(e.GLTF2||(e.GLTF2={}))})(BABYLON||(BABYLON={}));var BABYLON;!(function(e){!(function(t){var r=(function(){function e(e){this._pendingCount=0,this._callback=e}return e.prototype._addPendingData=function(e){this._pendingCount++},e.prototype._removePendingData=function(e){0==--this._pendingCount&&this._callback()},e})(),n=(function(){function n(t){this._renderReady=!1,this._disposed=!1,this._renderReadyObservable=new e.Observable,this._renderPendingCount=0,this._loaderPendingCount=0,this._loaderTrackers=new Array,this._parent=t}return n.RegisterExtension=function(r){if(n.Extensions[r.name])return void e.Tools.Error("Extension with the same name '"+r.name+"' already exists");n.Extensions[r.name]=r,t.GLTFLoaderExtension._Extensions.push(r)},n.prototype.dispose=function(){this._disposed||(this._disposed=!0,this._gltf.textures&&this._gltf.textures.forEach((function(e){e.url&&URL.revokeObjectURL(e.url)})),this._gltf=void 0,this._babylonScene=void 0,this._rootUrl=void 0,this._defaultMaterial=void 0,this._successCallback=void 0,this._errorCallback=void 0,this._renderReady=!1,this._renderReadyObservable.clear(),this._renderPendingCount=0,this._loaderPendingCount=0)},n.prototype.importMeshAsync=function(e,t,r,n,o,i,a){var s=this;this._loadAsync(e,t,r,n,(function(){o(s._getMeshes(),null,s._getSkeletons())}),i,a)},n.prototype.loadAsync=function(e,t,r,n,o,i){this._loadAsync(null,e,t,r,n,o,i)},n.prototype._loadAsync=function(e,r,n,o,i,a,s){var l=this;this._tryCatchOnError((function(){l._loadData(n),l._babylonScene=r,l._rootUrl=o,l._successCallback=i,l._progressCallback=a,l._errorCallback=s,t.GLTFUtils.AssignIndices(l._gltf.accessors),t.GLTFUtils.AssignIndices(l._gltf.animations),t.GLTFUtils.AssignIndices(l._gltf.buffers),t.GLTFUtils.AssignIndices(l._gltf.bufferViews),t.GLTFUtils.AssignIndices(l._gltf.images),t.GLTFUtils.AssignIndices(l._gltf.materials),t.GLTFUtils.AssignIndices(l._gltf.meshes),t.GLTFUtils.AssignIndices(l._gltf.nodes),t.GLTFUtils.AssignIndices(l._gltf.scenes),t.GLTFUtils.AssignIndices(l._gltf.skins),t.GLTFUtils.AssignIndices(l._gltf.textures),l._addPendingData(l),l._loadDefaultScene(e),l._loadAnimations(),l._removePendingData(l)}))},n.prototype._onError=function(t){this._disposed||(e.Tools.Error("glTF Loader: "+t),this._errorCallback&&this._errorCallback(t),this.dispose())},n.prototype._onProgress=function(e){this._disposed||this._progressCallback&&this._progressCallback(e)},n.prototype._executeWhenRenderReady=function(e){this._renderReady?e():this._renderReadyObservable.add(e)},n.prototype._onRenderReady=function(){this._rootNode.babylonMesh.setEnabled(!0),this._startAnimations(),this._successCallback(),this._renderReadyObservable.notifyObservers(this),this._parent.onReady&&this._parent.onReady()},n.prototype._onComplete=function(){this._parent.onComplete&&this._parent.onComplete(),this.dispose()},n.prototype._loadData=function(t){if(this._gltf=t.json,t.bin){var r=this._gltf.buffers;if(r&&r[0]&&!r[0].uri){var n=r[0];n.byteLength!=t.bin.byteLength&&e.Tools.Warn("Binary buffer length ("+n.byteLength+") from JSON does not match chunk length ("+t.bin.byteLength+")"),n.loadedData=t.bin}else e.Tools.Warn("Unexpected BIN chunk")}},n.prototype._getMeshes=function(){var e=[this._rootNode.babylonMesh],t=this._gltf.nodes;return t&&t.forEach((function(t){t.babylonMesh&&e.push(t.babylonMesh)})),e},n.prototype._getSkeletons=function(){var t=new Array,r=this._gltf.skins;return r&&r.forEach((function(r){r.babylonSkeleton instanceof e.Skeleton&&t.push(r.babylonSkeleton)})),t},n.prototype._getAnimationTargets=function(){var e=new Array,t=this._gltf.animations;return t&&t.forEach((function(t){e.push.apply(e,t.targets)})),e},n.prototype._startAnimations=function(){var e=this;this._getAnimationTargets().forEach((function(t){return e._babylonScene.beginAnimation(t,0,Number.MAX_VALUE,!0)}))},n.prototype._loadDefaultScene=function(e){var r=t.GLTFUtils.GetArrayItem(this._gltf.scenes,this._gltf.scene||0);if(!r)throw new Error("Failed to find scene "+(this._gltf.scene||0));this._loadScene("#/scenes/"+r.index,r,e)},n.prototype._loadScene=function(r,n,o){switch(this._rootNode={babylonMesh:new e.Mesh("__root__",this._babylonScene)},this._parent.coordinateSystemMode){case e.GLTFLoaderCoordinateSystemMode.AUTO:this._babylonScene.useRightHandedSystem||(this._rootNode.babylonMesh.rotation=new e.Vector3(0,Math.PI,0),this._rootNode.babylonMesh.scaling=new e.Vector3(1,1,-1));break;case e.GLTFLoaderCoordinateSystemMode.PASS_THROUGH:break;case e.GLTFLoaderCoordinateSystemMode.FORCE_RIGHT_HANDED:this._babylonScene.useRightHandedSystem=!0;break;default:return void e.Tools.Error("Invalid coordinate system mode ("+this._parent.coordinateSystemMode+")")}var i=n.nodes;if(this._traverseNodes(r,i,(function(e,t){return e.parent=t,!0}),this._rootNode),o){o instanceof Array||(o=[o]);var a=new Array;this._traverseNodes(r,i,(function(e){return o.indexOf(e.name)===-1||(a.push(e.index),!1)}),this._rootNode),i=a}for(var s=0;s<i.length;s++){var l=t.GLTFUtils.GetArrayItem(this._gltf.nodes,i[s]);if(!l)throw new Error(r+": Failed to find node "+i[s]);this._loadNode("#/nodes/"+i[s],l)}this._rootNode.babylonMesh.setEnabled(!1)},n.prototype._loadNode=function(r,n){if(!t.GLTFLoaderExtension.LoadNode(this,r,n)){if(n.babylonMesh=new e.Mesh(n.name||"mesh"+n.index,this._babylonScene),this._loadTransform(n),null!=n.mesh){var o=t.GLTFUtils.GetArrayItem(this._gltf.meshes,n.mesh);if(!o)throw new Error(r+": Failed to find mesh "+n.mesh);this._loadMesh("#/meshes/"+n.mesh,n,o)}if(n.babylonMesh.parent=n.parent?n.parent.babylonMesh:null,n.babylonAnimationTargets=n.babylonAnimationTargets||[],n.babylonAnimationTargets.push(n.babylonMesh),null!=n.skin){var i=t.GLTFUtils.GetArrayItem(this._gltf.skins,n.skin);if(!i)throw new Error(r+": Failed to find skin "+n.skin);n.babylonMesh.skeleton=this._loadSkin("#/skins/"+n.skin,i)}if(n.camera,n.children)for(var a=0;a<n.children.length;a++){var s=t.GLTFUtils.GetArrayItem(this._gltf.nodes,n.children[a]);if(!s)throw new Error(r+": Failed to find child node "+n.children[a]);this._loadNode("#/nodes/"+n.children[a],s)}}},n.prototype._loadMesh=function(t,r,n){r.babylonMesh.name=n.name||r.babylonMesh.name;var o=new e.MultiMaterial(r.babylonMesh.name,this._babylonScene);r.babylonMesh.material=o;var i=new e.Geometry(r.babylonMesh.name,this._babylonScene,null,!1,r.babylonMesh),a=new e.VertexData;a.positions=[],a.indices=[];for(var s=[],l=n.primitives.length,u=0;u<n.primitives.length;u++){var c=n.primitives[u];this._loadPrimitive(t+"/primitives/"+u,r,n,c,(function(t,n){if(s.push({verticesStart:a.positions.length,verticesCount:t.positions.length,indicesStart:a.indices.length,indicesCount:t.indices.length,loadMaterial:n}),a.merge(t),0==--l){i.setAllVerticesData(a,!1),r.babylonMesh.subMeshes=[];for(var o=0;o<s.length;o++){var u=s[o];e.SubMesh.AddToMesh(o,u.verticesStart,u.verticesCount,u.indicesStart,u.indicesCount,r.babylonMesh),u.loadMaterial(o)}}}))}},n.prototype._loadPrimitive=function(e,r,n,o,i){var a=this,s=r.babylonMesh.material.subMaterials;if(o.mode&&o.mode!==t.EMeshPrimitiveMode.TRIANGLES)throw new Error(e+": Mode "+o.mode+" is not currently supported");this._createMorphTargets(r,n,o),this._loadVertexDataAsync(e,n,o,(function(l){a._loadMorphTargetsData(e,n,o,l,r.babylonMesh),i(l,(function(n){if(null==o.material)s[n]=a._getDefaultMaterial();else{var i=t.GLTFUtils.GetArrayItem(a._gltf.materials,o.material);if(!i)throw new Error(e+": Failed to find material "+o.material);a._loadMaterial("#/materials/"+i.index,i,(function(e,t){t&&a._parent.onMaterialLoaded&&a._parent.onMaterialLoaded(e),a._parent.onBeforeMaterialReadyAsync?(a._addLoaderPendingData(i),a._parent.onBeforeMaterialReadyAsync(e,r.babylonMesh,null!=s[n],(function(){s[n]=e,a._removeLoaderPendingData(i)}))):s[n]=e}))}}))}))},n.prototype._loadVertexDataAsync=function(r,n,o,i){var a=this,s=o.attributes;if(!s)throw new Error(r+": Attributes are missing");var l,u=new e.VertexData,c=Object.keys(s).length,f=this;for(var d in s)!(function(n){if(!(l=t.GLTFUtils.GetArrayItem(f._gltf.accessors,s[n])))throw new Error(r+": Failed to find attribute '"+n+"' accessor "+s[n]);f._loadAccessorAsync("#/accessors/"+l.index,l,(function(s){switch(n){case"NORMAL":u.normals=s;break;case"POSITION":u.positions=s;break;case"TANGENT":u.tangents=s;break;case"TEXCOORD_0":u.uvs=s;break;case"TEXCOORD_1":u.uvs2=s;break;case"JOINTS_0":u.matricesIndices=new Float32Array(Array.prototype.slice.apply(s));break;case"WEIGHTS_0":u.matricesWeights=s;break;case"COLOR_0":u.colors=s;break;default:e.Tools.Warn("Ignoring unrecognized attribute '"+n+"'")}if(0==--c)if(null==o.indices)u.indices=new Uint32Array(u.positions.length/3),u.indices.forEach((function(e,t){return u.indices[t]=t})),i(u);else{var l=t.GLTFUtils.GetArrayItem(a._gltf.accessors,o.indices);if(!l)throw new Error(r+": Failed to find indices accessor "+o.indices);a._loadAccessorAsync("#/accessors/"+l.index,l,(function(e){u.indices=e,i(u)}))}}))})(d)},n.prototype._createMorphTargets=function(t,r,n){var o=n.targets;if(o){t.babylonMesh.morphTargetManager||(t.babylonMesh.morphTargetManager=new e.MorphTargetManager);for(var i=0;i<o.length;i++){var a=t.weights?t.weights[i]:r.weights?r.weights[i]:0;t.babylonMesh.morphTargetManager.addTarget(new e.MorphTarget("morphTarget"+i,a))}}},n.prototype._loadMorphTargetsData=function(r,n,o,i,a){var s=o.targets;if(s)for(var l,u,c=this,f=0;f<s.length;f++)!(function(){var n=a.morphTargetManager.getTarget(f);l=s[f];for(var o in l)!(function(o){if(!(u=t.GLTFUtils.GetArrayItem(c._gltf.accessors,l[o])))throw new Error(r+"/targets/"+f+": Failed to find attribute '"+o+"' accessor "+l[o]);c._loadAccessorAsync("#/accessors/"+u.index,u,(function(r){u.name&&(n.name=u.name);var a=r;switch(o){case"NORMAL":t.GLTFUtils.ForEach(a,(function(e,t){return a[t]+=i.normals[t]})),n.setNormals(a);break;case"POSITION":t.GLTFUtils.ForEach(a,(function(e,t){return a[t]+=i.positions[t]})),n.setPositions(a);break;case"TANGENT":for(var s=0,l=0;s<a.length;s++,l++)a[s]+=i.tangents[l],(s+1)%3==0&&l++;n.setTangents(a);break;default:e.Tools.Warn("Ignoring unrecognized attribute '"+o+"'")}}))})(o)})()},n.prototype._loadTransform=function(t){var r=e.Vector3.Zero(),n=e.Quaternion.Identity(),o=e.Vector3.One();if(t.matrix){e.Matrix.FromArray(t.matrix).decompose(o,n,r)}else t.translation&&(r=e.Vector3.FromArray(t.translation)),t.rotation&&(n=e.Quaternion.FromArray(t.rotation)),t.scale&&(o=e.Vector3.FromArray(t.scale));t.babylonMesh.position=r,t.babylonMesh.rotationQuaternion=n,t.babylonMesh.scaling=o},n.prototype._loadSkin=function(r,n){var o=this,i="skeleton"+n.index;if(n.babylonSkeleton=new e.Skeleton(n.name||i,i,this._babylonScene),null==n.inverseBindMatrices)this._loadBones(r,n,null);else{var a=t.GLTFUtils.GetArrayItem(this._gltf.accessors,n.inverseBindMatrices);if(!a)throw new Error(r+": Failed to find inverse bind matrices attribute "+n.inverseBindMatrices);this._loadAccessorAsync("#/accessors/"+a.index,a,(function(e){o._loadBones(r,n,e)}))}return n.babylonSkeleton},n.prototype._createBone=function(t,r,n,o,i,a){var s=new e.Bone(t.name||"bone"+t.index,r.babylonSkeleton,n,o,null,i,a);return t.babylonBones=t.babylonBones||{},t.babylonBones[r.index]=s,t.babylonAnimationTargets=t.babylonAnimationTargets||[],t.babylonAnimationTargets.push(s),s},n.prototype._loadBones=function(e,r,n){for(var o={},i=0;i<r.joints.length;i++){var a=t.GLTFUtils.GetArrayItem(this._gltf.nodes,r.joints[i]);if(!a)throw new Error(e+": Failed to find joint "+r.joints[i]);this._loadBone(a,r,n,o)}},n.prototype._loadBone=function(t,r,n,o){var i=o[t.index];if(i)return i;var a=r.joints.indexOf(t.index),s=e.Matrix.Identity();n&&a!==-1&&(s=e.Matrix.FromArray(n,16*a),s.invertToRef(s));var l;return t.index!==r.skeleton&&t.parent!==this._rootNode&&(l=this._loadBone(t.parent,r,n,o),s.multiplyToRef(l.getInvertedAbsoluteTransform(),s)),i=this._createBone(t,r,l,this._getNodeMatrix(t),s,a),o[t.index]=i,i},n.prototype._getNodeMatrix=function(t){return t.matrix?e.Matrix.FromArray(t.matrix):e.Matrix.Compose(t.scale?e.Vector3.FromArray(t.scale):e.Vector3.One(),t.rotation?e.Quaternion.FromArray(t.rotation):e.Quaternion.Identity(),t.translation?e.Vector3.FromArray(t.translation):e.Vector3.Zero())},n.prototype._traverseNodes=function(e,r,n,o){void 0===o&&(o=null);for(var i=0;i<r.length;i++){var a=t.GLTFUtils.GetArrayItem(this._gltf.nodes,r[i]);if(!a)throw new Error(e+": Failed to find node "+r[i]);this._traverseNode(e,a,n,o)}},n.prototype._traverseNode=function(e,r,n,o){void 0===o&&(o=null),t.GLTFLoaderExtension.TraverseNode(this,e,r,n,o)||n(r,o)&&r.children&&this._traverseNodes(e,r.children,n,r)},n.prototype._loadAnimations=function(){var e=this._gltf.animations;if(e)for(var r=0;r<e.length;r++)for(var n=e[r],o="#/animations/"+r,i=0;i<n.channels.length;i++){var a=t.GLTFUtils.GetArrayItem(n.channels,i);if(!a)throw new Error(o+": Failed to find channel "+i);var s=t.GLTFUtils.GetArrayItem(n.samplers,a.sampler);if(!s)throw new Error(o+": Failed to find sampler "+a.sampler);this._loadAnimationChannel(n,o+"/channels/"+i,a,o+"/samplers/"+a.sampler,s)}},n.prototype._loadAnimationChannel=function(r,n,o,i,a){var s=t.GLTFUtils.GetArrayItem(this._gltf.nodes,o.target.node);if(!s)throw new Error(n+": Failed to find target node "+o.target.node);var l,u;switch(o.target.path){case"translation":l="position",u=e.Animation.ANIMATIONTYPE_VECTOR3;break;case"rotation":l="rotationQuaternion",u=e.Animation.ANIMATIONTYPE_QUATERNION;break;case"scale":l="scaling",u=e.Animation.ANIMATIONTYPE_VECTOR3;break;case"weights":l="influence",u=e.Animation.ANIMATIONTYPE_FLOAT;break;default:throw new Error(n+": Invalid target path '"+o.target.path+"'")}var c,f,d=function(){if(c&&f){var t,n=0;switch(l){case"position":t=function(){var t=e.Vector3.FromArray(f,n);return n+=3,t};break;case"rotationQuaternion":t=function(){var t=e.Quaternion.FromArray(f,n);return n+=4,t};break;case"scaling":t=function(){var t=e.Vector3.FromArray(f,n);return n+=3,t};break;case"influence":t=function(){for(var e=s.babylonMesh.morphTargetManager.numTargets,t=new Array(e),r=0;r<e;r++)t[r]=f[n++];return t}}var o;switch(a.interpolation){case"LINEAR":o=function(e){return{frame:c[e],value:t()}};break;case"CUBICSPLINE":o=function(e){return{frame:c[e],inTangent:t(),value:t(),outTangent:t()}};break;default:throw new Error(i+": Invalid interpolation '"+a.interpolation+"'")}for(var d=new Array(c.length),h=0;h<c.length;h++)d[h]=o(h);if(r.targets=r.targets||[],"influence"===l)for(var T=s.babylonMesh.morphTargetManager,E=0;E<T.numTargets;E++){var p=T.getTarget(E),_=(r.name||"anim"+r.index)+"_"+E,A=new e.Animation(_,l,1,u);A.setKeys(d.map((function(e){return{frame:e.frame,inTangent:e.inTangent?e.inTangent[E]:void 0,value:e.value[E],outTangent:e.outTangent?e.outTangent[E]:void 0}}))),p.animations.push(A),r.targets.push(p)}else{var _=r.name||"anim"+r.index,A=new e.Animation(_,l,1,u);A.setKeys(d);for(var m=0;m<s.babylonAnimationTargets.length;m++){var y=s.babylonAnimationTargets[m];y.animations.push(A.clone()),r.targets.push(y)}}}},h=t.GLTFUtils.GetArrayItem(this._gltf.accessors,a.input);if(!h)throw new Error(i+": Failed to find input accessor "+a.input);this._loadAccessorAsync("#/accessors/"+h.index,h,(function(e){c=e,d()}));var T=t.GLTFUtils.GetArrayItem(this._gltf.accessors,a.output);if(!T)throw new Error(i+": Failed to find output accessor "+a.output);this._loadAccessorAsync("#/accessors/"+T.index,T,(function(e){f=e,d()}))},n.prototype._loadBufferAsync=function(r,n,o){var i=this;if(this._addPendingData(n),n.loadedData)o(n.loadedData),this._removePendingData(n);else if(n.loadedObservable)n.loadedObservable.add((function(e){o(e.loadedData),i._removePendingData(e)}));else{if(!n.uri)throw new Error(r+": Uri is missing");if(t.GLTFUtils.IsBase64(n.uri)){var a=t.GLTFUtils.DecodeBase64(n.uri);n.loadedData=new Uint8Array(a),o(n.loadedData),this._removePendingData(n)}else{if(!t.GLTFUtils.ValidateUri(n.uri))throw new Error(r+": Uri '"+n.uri+"' is invalid");n.loadedObservable=new e.Observable,n.loadedObservable.add((function(e){o(e.loadedData),i._removePendingData(e)})),e.Tools.LoadFile(this._rootUrl+n.uri,(function(e){i._tryCatchOnError((function(){n.loadedData=new Uint8Array(e),n.loadedObservable.notifyObservers(n),n.loadedObservable=null}))}),(function(e){i._tryCatchOnError((function(){i._onProgress(e)}))}),this._babylonScene.database,!0,(function(e){i._tryCatchOnError((function(){throw new Error(r+": Failed to load '"+n.uri+"'"+(e?": "+e.status+" "+e.statusText:""))}))}))}}},n.prototype._loadBufferViewAsync=function(e,r,n){var o=this,i=t.GLTFUtils.GetArrayItem(this._gltf.buffers,r.buffer);if(!i)throw new Error(e+": Failed to find buffer "+r.buffer);this._loadBufferAsync("#/buffers/"+i.index,i,(function(t){if(!o._disposed){try{var i=new Uint8Array(t.buffer,t.byteOffset+(r.byteOffset||0),r.byteLength)}catch(t){throw new Error(e+": "+t.message)}n(i)}}))},n.prototype._loadAccessorAsync=function(e,r,n){var o=this;if(r.sparse)throw new Error(e+": Sparse accessors are not currently supported");if(r.normalized)throw new Error(e+": Normalized accessors are not currently supported");var i=t.GLTFUtils.GetArrayItem(this._gltf.bufferViews,r.bufferView);if(!i)throw new Error(e+": Failed to find buffer view "+r.bufferView);this._loadBufferViewAsync("#/bufferViews/"+i.index,i,(function(a){var s=o._getNumComponentsOfType(r.type);if(0===s)throw new Error(e+": Invalid type ("+r.type+")");var l;switch(r.componentType){case t.EComponentType.BYTE:l=o._buildArrayBuffer(Float32Array,e,a,r.byteOffset,r.count,s,i.byteStride);break;case t.EComponentType.UNSIGNED_BYTE:l=o._buildArrayBuffer(Uint8Array,e,a,r.byteOffset,r.count,s,i.byteStride);break;case t.EComponentType.SHORT:l=o._buildArrayBuffer(Int16Array,e,a,r.byteOffset,r.count,s,i.byteStride);break;case t.EComponentType.UNSIGNED_SHORT:l=o._buildArrayBuffer(Uint16Array,e,a,r.byteOffset,r.count,s,i.byteStride);break;case t.EComponentType.UNSIGNED_INT:l=o._buildArrayBuffer(Uint32Array,e,a,r.byteOffset,r.count,s,i.byteStride);break;case t.EComponentType.FLOAT:l=o._buildArrayBuffer(Float32Array,e,a,r.byteOffset,r.count,s,i.byteStride);break;default:throw new Error(e+": Invalid component type ("+r.componentType+")")}n(l)}))},n.prototype._getNumComponentsOfType=function(e){switch(e){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}return 0},n.prototype._buildArrayBuffer=function(e,t,r,n,o,i,a){try{var n=r.byteOffset+(n||0),s=o*i;if(null==a||a===i*e.BYTES_PER_ELEMENT)return new e(r.buffer,n,s);for(var l=a/e.BYTES_PER_ELEMENT,u=new e(r.buffer,n,l*o),c=new e(s),f=0,d=0;d<s;){for(var h=0;h<i;h++)c[d]=u[f+h],d++;f+=l}return c}catch(e){throw new Error(t+": "+e)}},n.prototype._addPendingData=function(e){this._renderReady||this._renderPendingCount++,this._addLoaderPendingData(e)},n.prototype._removePendingData=function(e){this._renderReady||0==--this._renderPendingCount&&(this._renderReady=!0,this._onRenderReady()),this._removeLoaderPendingData(e)},n.prototype._addLoaderPendingData=function(e){this._loaderPendingCount++,this._loaderTrackers.forEach((function(t){return t._addPendingData(e)}))},n.prototype._removeLoaderPendingData=function(e){this._loaderTrackers.forEach((function(t){return t._removePendingData(e)})),0==--this._loaderPendingCount&&this._onComplete()},n.prototype._whenAction=function(e,t){var n=this,o=new r(function(){n._loaderTrackers.splice(n._loaderTrackers.indexOf(o)),t()});this._loaderTrackers.push(o),this._addLoaderPendingData(o),e(),this._removeLoaderPendingData(o)},n.prototype._getDefaultMaterial=function(){if(!this._defaultMaterial){var t="__gltf_default",r=this._babylonScene.getMaterialByName(t);r||(r=new e.PBRMaterial(t,this._babylonScene),r.sideOrientation=e.Material.CounterClockWiseSideOrientation,r.metallic=1,r.roughness=1),this._defaultMaterial=r}return this._defaultMaterial},n.prototype._loadMaterialMetallicRoughnessProperties=function(r,n){var o=n.babylonMaterial;o.metallic=1,o.roughness=1;var i=n.pbrMetallicRoughness;if(i){if(o.albedoColor=i.baseColorFactor?e.Color3.FromArray(i.baseColorFactor):new e.Color3(1,1,1),o.metallic=null==i.metallicFactor?1:i.metallicFactor,o.roughness=null==i.roughnessFactor?1:i.roughnessFactor,i.baseColorTexture){var a=t.GLTFUtils.GetArrayItem(this._gltf.textures,i.baseColorTexture.index);if(!a)throw new Error(r+": Failed to find base color texture "+i.baseColorTexture.index);o.albedoTexture=this._loadTexture("#/textures/"+a.index,a,i.baseColorTexture.texCoord)}if(i.metallicRoughnessTexture){var a=t.GLTFUtils.GetArrayItem(this._gltf.textures,i.metallicRoughnessTexture.index);if(!a)throw new Error(r+": Failed to find metallic roughness texture "+i.metallicRoughnessTexture.index);o.metallicTexture=this._loadTexture("#/textures/"+a.index,a,i.metallicRoughnessTexture.texCoord),o.useMetallnessFromMetallicTextureBlue=!0,o.useRoughnessFromMetallicTextureGreen=!0,o.useRoughnessFromMetallicTextureAlpha=!1}this._loadMaterialAlphaProperties(r,n,i.baseColorFactor)}},n.prototype._loadMaterial=function(e,r,n){if(r.babylonMaterial)return void n(r.babylonMaterial,!1);t.GLTFLoaderExtension.LoadMaterial(this,e,r,n)||(this._createPbrMaterial(r),this._loadMaterialBaseProperties(e,r),this._loadMaterialMetallicRoughnessProperties(e,r),n(r.babylonMaterial,!0))},n.prototype._createPbrMaterial=function(t){var r=new e.PBRMaterial(t.name||"mat"+t.index,this._babylonScene);r.sideOrientation=e.Material.CounterClockWiseSideOrientation,t.babylonMaterial=r},n.prototype._loadMaterialBaseProperties=function(r,n){var o=n.babylonMaterial;if(o.emissiveColor=n.emissiveFactor?e.Color3.FromArray(n.emissiveFactor):new e.Color3(0,0,0),n.doubleSided&&(o.backFaceCulling=!1,o.twoSidedLighting=!0),n.normalTexture){var i=t.GLTFUtils.GetArrayItem(this._gltf.textures,n.normalTexture.index);if(!i)throw new Error(r+": Failed to find normal texture "+n.normalTexture.index);o.bumpTexture=this._loadTexture("#/textures/"+i.index,i,n.normalTexture.texCoord),o.invertNormalMapX=!this._babylonScene.useRightHandedSystem,o.invertNormalMapY=this._babylonScene.useRightHandedSystem,null!=n.normalTexture.scale&&(o.bumpTexture.level=n.normalTexture.scale)}if(n.occlusionTexture){var i=t.GLTFUtils.GetArrayItem(this._gltf.textures,n.occlusionTexture.index);if(!i)throw new Error(r+": Failed to find occlusion texture "+n.occlusionTexture.index);o.ambientTexture=this._loadTexture("#/textures/"+i.index,i,n.occlusionTexture.texCoord),o.useAmbientInGrayScale=!0,null!=n.occlusionTexture.strength&&(o.ambientTextureStrength=n.occlusionTexture.strength)}if(n.emissiveTexture){var i=t.GLTFUtils.GetArrayItem(this._gltf.textures,n.emissiveTexture.index);if(!i)throw new Error(r+": Failed to find emissive texture "+n.emissiveTexture.index);o.emissiveTexture=this._loadTexture("#/textures/"+i.index,i,n.emissiveTexture.texCoord)}},n.prototype._loadMaterialAlphaProperties=function(e,t,r){var n=t.babylonMaterial;switch(t.alphaMode||"OPAQUE"){case"OPAQUE":break;case"MASK":n.alphaCutOff=null==t.alphaCutoff?.5:t.alphaCutoff,r&&(0==r[3]?n.alphaCutOff=1:n.alphaCutOff/=r[3]),n.albedoTexture&&(n.albedoTexture.hasAlpha=!0);break;case"BLEND":r&&(n.alpha=r[3]),n.albedoTexture&&(n.albedoTexture.hasAlpha=!0,n.useAlphaFromAlbedoTexture=!0);break;default:throw new Error(e+": Invalid alpha mode '"+t.alphaMode+"'")}},n.prototype._loadTexture=function(r,n,o){var i=this,a=null==n.sampler?{}:t.GLTFUtils.GetArrayItem(this._gltf.samplers,n.sampler);if(!a)throw new Error(r+": Failed to find sampler "+n.sampler);var s=a.minFilter===t.ETextureMinFilter.NEAREST||a.minFilter===t.ETextureMinFilter.LINEAR,l=t.GLTFUtils.GetTextureSamplingMode(a.magFilter,a.minFilter);this._addPendingData(n);var u=new e.Texture(null,this._babylonScene,s,!1,l,function(){i._tryCatchOnError((function(){i._removePendingData(n)}))},function(e){i._tryCatchOnError((function(){throw new Error(r+": "+e)}))});if(n.url)u.updateURL(n.url);else if(n.dataReadyObservable)n.dataReadyObservable.add((function(e){u.updateURL(e.url)}));else{n.dataReadyObservable=new e.Observable,n.dataReadyObservable.add((function(e){u.updateURL(e.url)}));var c=t.GLTFUtils.GetArrayItem(this._gltf.images,n.source);if(!c)throw new Error(r+": Failed to find source "+n.source)
;this._loadImage("#/images/"+c.index,c,(function(e){n.url=URL.createObjectURL(new Blob([e],{type:c.mimeType})),n.dataReadyObservable.notifyObservers(n)}))}return u.coordinatesIndex=o||0,u.wrapU=t.GLTFUtils.GetTextureWrapMode(a.wrapS),u.wrapV=t.GLTFUtils.GetTextureWrapMode(a.wrapT),u.name=n.name||"texture"+n.index,this._parent.onTextureLoaded&&this._parent.onTextureLoaded(u),u},n.prototype._loadImage=function(r,n,o){var i=this;if(n.uri){if(!t.GLTFUtils.ValidateUri(n.uri))throw new Error(r+": Uri '"+n.uri+"' is invalid");t.GLTFUtils.IsBase64(n.uri)?o(new Uint8Array(t.GLTFUtils.DecodeBase64(n.uri))):e.Tools.LoadFile(this._rootUrl+n.uri,(function(e){i._tryCatchOnError((function(){o(e)}))}),(function(e){i._tryCatchOnError((function(){i._onProgress(e)}))}),this._babylonScene.database,!0,(function(e){i._tryCatchOnError((function(){throw new Error(r+": Failed to load '"+n.uri+"'"+(e?": "+e.status+" "+e.statusText:""))}))}))}else{var a=t.GLTFUtils.GetArrayItem(this._gltf.bufferViews,n.bufferView);if(!a)throw new Error(r+": Failed to find buffer view "+n.bufferView);this._loadBufferViewAsync("#/bufferViews/"+a.index,a,o)}},n.prototype._tryCatchOnError=function(e){try{e()}catch(e){this._onError(e.message)}},n.Extensions={},n})();t.GLTFLoader=n,e.GLTFFileLoader.CreateGLTFLoaderV2=function(e){return new n(e)}})(e.GLTF2||(e.GLTF2={}))})(BABYLON||(BABYLON={}));var BABYLON;!(function(e){!(function(t){var r=(function(){function r(){}return r.IsBase64=function(e){return!(e.length<5)&&"data:"===e.substr(0,5)},r.DecodeBase64=function(e){for(var t=atob(e.split(",")[1]),r=t.length,n=new Uint8Array(new ArrayBuffer(r)),o=0;o<r;o++)n[o]=t.charCodeAt(o);return n.buffer},r.ForEach=function(e,t){for(var r=0;r<e.length;r++)t(e[r],r)},r.ValidateUri=function(e){return e.indexOf("..")===-1},r.AssignIndices=function(e){if(e)for(var t=0;t<e.length;t++)e[t].index=t},r.GetArrayItem=function(e,t){return e&&e[t]?e[t]:null},r.GetTextureWrapMode=function(r){switch(r=void 0===r?t.ETextureWrapMode.REPEAT:r){case t.ETextureWrapMode.CLAMP_TO_EDGE:return e.Texture.CLAMP_ADDRESSMODE;case t.ETextureWrapMode.MIRRORED_REPEAT:return e.Texture.MIRROR_ADDRESSMODE;case t.ETextureWrapMode.REPEAT:return e.Texture.WRAP_ADDRESSMODE;default:return e.Tools.Warn("Invalid texture wrap mode ("+r+")"),e.Texture.WRAP_ADDRESSMODE}},r.GetTextureSamplingMode=function(r,n){if(r=void 0===r?t.ETextureMagFilter.LINEAR:r,n=void 0===n?t.ETextureMinFilter.LINEAR_MIPMAP_LINEAR:n,r===t.ETextureMagFilter.LINEAR)switch(n){case t.ETextureMinFilter.NEAREST:return e.Texture.LINEAR_NEAREST;case t.ETextureMinFilter.LINEAR:return e.Texture.LINEAR_LINEAR;case t.ETextureMinFilter.NEAREST_MIPMAP_NEAREST:return e.Texture.LINEAR_NEAREST_MIPNEAREST;case t.ETextureMinFilter.LINEAR_MIPMAP_NEAREST:return e.Texture.LINEAR_LINEAR_MIPNEAREST;case t.ETextureMinFilter.NEAREST_MIPMAP_LINEAR:return e.Texture.LINEAR_NEAREST_MIPLINEAR;case t.ETextureMinFilter.LINEAR_MIPMAP_LINEAR:return e.Texture.LINEAR_LINEAR_MIPLINEAR;default:return e.Tools.Warn("Invalid texture minification filter ("+n+")"),e.Texture.LINEAR_LINEAR_MIPLINEAR}else switch(r!==t.ETextureMagFilter.NEAREST&&e.Tools.Warn("Invalid texture magnification filter ("+r+")"),n){case t.ETextureMinFilter.NEAREST:return e.Texture.NEAREST_NEAREST;case t.ETextureMinFilter.LINEAR:return e.Texture.NEAREST_LINEAR;case t.ETextureMinFilter.NEAREST_MIPMAP_NEAREST:return e.Texture.NEAREST_NEAREST_MIPNEAREST;case t.ETextureMinFilter.LINEAR_MIPMAP_NEAREST:return e.Texture.NEAREST_LINEAR_MIPNEAREST;case t.ETextureMinFilter.NEAREST_MIPMAP_LINEAR:return e.Texture.NEAREST_NEAREST_MIPLINEAR;case t.ETextureMinFilter.LINEAR_MIPMAP_LINEAR:return e.Texture.NEAREST_LINEAR_MIPLINEAR;default:return e.Tools.Warn("Invalid texture minification filter ("+n+")"),e.Texture.NEAREST_NEAREST_MIPNEAREST}},r})();t.GLTFUtils=r})(e.GLTF2||(e.GLTF2={}))})(BABYLON||(BABYLON={}));var BABYLON;!(function(e){!(function(e){var t=(function(){function e(){this.enabled=!0}return e.prototype._traverseNode=function(e,t,r,n,o){return!1},e.prototype._loadNode=function(e,t,r){return!1},e.prototype._loadMaterial=function(e,t,r,n){return!1},e.prototype._loadExtension=function(e,t){var r=this;if(!e.extensions)return!1;var n=e.extensions[this.name];return!!n&&(e.extensions[this.name]=void 0,t(n,(function(){e.extensions[r.name]=n})),!0)},e.TraverseNode=function(e,t,r,n,o){return this._ApplyExtensions((function(i){return i._traverseNode(e,t,r,n,o)}))},e.LoadNode=function(e,t,r){return this._ApplyExtensions((function(n){return n._loadNode(e,t,r)}))},e.LoadMaterial=function(e,t,r,n){return this._ApplyExtensions((function(o){return o._loadMaterial(e,t,r,n)}))},e._ApplyExtensions=function(t){var r=e._Extensions;if(!r)return!1;for(var n=0;n<r.length;n++){var o=r[n];if(o.enabled&&t(o))return!0}return!1},e._Extensions=[],e})();e.GLTFLoaderExtension=t})(e.GLTF2||(e.GLTF2={}))})(BABYLON||(BABYLON={}));var __extends=this&&this.__extends||(function(){var e=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var r in t)t.hasOwnProperty(r)&&(e[r]=t[r])};return function(t,r){function n(){this.constructor=t}e(t,r),t.prototype=null===r?Object.create(r):(n.prototype=r.prototype,new n)}})(),BABYLON;!(function(e){!(function(t){!(function(r){var n=(function(r){function n(){return null!==r&&r.apply(this,arguments)||this}return __extends(n,r),Object.defineProperty(n.prototype,"name",{get:function(){return"MSFT_lod"},enumerable:!0,configurable:!0}),n.prototype._traverseNode=function(e,r,n,o,i){return this._loadExtension(n,(function(a,s){for(var l=a.ids.length-1;l>=0;l--){var u=t.GLTFUtils.GetArrayItem(e._gltf.nodes,a.ids[l]);if(!u)throw new Error(r+": Failed to find node "+a.ids[l]);e._traverseNode(r,u,o,i)}e._traverseNode(r,n,o,i),s()}))},n.prototype._loadNode=function(e,t,r){var n=this;return this._loadExtension(r,(function(o,i){var a=[r.index].concat(o.ids).map((function(t){return e._gltf.nodes[t]}));e._addLoaderPendingData(r),n._loadNodeLOD(e,t,a,a.length-1,(function(){e._removeLoaderPendingData(r),i()}))}))},n.prototype._loadNodeLOD=function(e,t,r,o,i){var a=this;e._whenAction((function(){e._loadNode(t,r[o])}),(function(){if(o!==r.length-1){r[o+1].babylonMesh.setEnabled(!1)}if(0===o)return void i();setTimeout((function(){a._loadNodeLOD(e,t,r,o-1,i)}),n.MinimalLODDelay)}))},n.prototype._loadMaterial=function(e,t,r,n){var o=this;return this._loadExtension(r,(function(i,a){var s=[r.index].concat(i.ids).map((function(t){return e._gltf.materials[t]}));e._addLoaderPendingData(r),o._loadMaterialLOD(e,t,s,s.length-1,n,(function(){r.extensions[o.name]=i,e._removeLoaderPendingData(r),a()}))}))},n.prototype._loadMaterialLOD=function(t,r,o,i,a,s){var l=this;t._loadMaterial(r,o[i],(function(u,c){if(a(u,c),0===i)return void s();t._executeWhenRenderReady((function(){e.BaseTexture.WhenAllReady(u.getActiveTextures(),(function(){setTimeout((function(){l._loadMaterialLOD(t,r,o,i-1,a,s)}),n.MinimalLODDelay)}))}))}))},n.MinimalLODDelay=250,n})(t.GLTFLoaderExtension);r.MSFTLOD=n,t.GLTFLoader.RegisterExtension(new n)})(t.Extensions||(t.Extensions={}))})(e.GLTF2||(e.GLTF2={}))})(BABYLON||(BABYLON={}));var __extends=this&&this.__extends||(function(){var e=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var r in t)t.hasOwnProperty(r)&&(e[r]=t[r])};return function(t,r){function n(){this.constructor=t}e(t,r),t.prototype=null===r?Object.create(r):(n.prototype=r.prototype,new n)}})(),BABYLON;!(function(e){!(function(t){!(function(r){var n=(function(r){function n(){return null!==r&&r.apply(this,arguments)||this}return __extends(n,r),Object.defineProperty(n.prototype,"name",{get:function(){return"KHR_materials_pbrSpecularGlossiness"},enumerable:!0,configurable:!0}),n.prototype._loadMaterial=function(e,t,r,n){var o=this;return this._loadExtension(r,(function(i,a){e._createPbrMaterial(r),e._loadMaterialBaseProperties(t,r),o._loadSpecularGlossinessProperties(e,t,r,i),n(r.babylonMaterial,!0)}))},n.prototype._loadSpecularGlossinessProperties=function(r,n,o,i){var a=o.babylonMaterial;if(a.albedoColor=i.diffuseFactor?e.Color3.FromArray(i.diffuseFactor):new e.Color3(1,1,1),a.reflectivityColor=i.specularFactor?e.Color3.FromArray(i.specularFactor):new e.Color3(1,1,1),a.microSurface=null==i.glossinessFactor?1:i.glossinessFactor,i.diffuseTexture){var s=t.GLTFUtils.GetArrayItem(r._gltf.textures,i.diffuseTexture.index);if(!s)throw new Error(n+": Failed to find diffuse texture "+i.diffuseTexture.index);a.albedoTexture=r._loadTexture("textures["+s.index+"]",s,i.diffuseTexture.texCoord)}if(i.specularGlossinessTexture){var s=t.GLTFUtils.GetArrayItem(r._gltf.textures,i.specularGlossinessTexture.index);if(!s)throw new Error(n+": Failed to find diffuse texture "+i.specularGlossinessTexture.index);a.reflectivityTexture=r._loadTexture("textures["+s.index+"]",s,i.specularGlossinessTexture.texCoord),a.reflectivityTexture.hasAlpha=!0,a.useMicroSurfaceFromReflectivityMapAlpha=!0}r._loadMaterialAlphaProperties(n,o,i.diffuseFactor)},n})(t.GLTFLoaderExtension);r.KHRMaterialsPbrSpecularGlossiness=n,t.GLTFLoader.RegisterExtension(new n)})(t.Extensions||(t.Extensions={}))})(e.GLTF2||(e.GLTF2={}))})(BABYLON||(BABYLON={}));