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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 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o=r.animations[n];if(o.channels&&o.samplers)for(var a=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]),p=t.GLTFUtils.GetBufferFromAccessor(r,r.accessors[d]),_=u.target.id,E=r.scene.getNodeByID(_);if(null===E&&(E=r.scene.getNodeByName(_)),null!==E){var m=E instanceof e.Bone,T=u.target.path,A=i.indexOf(T);-1!==A&&(T=s[A]);var y=e.Animation.ANIMATIONTYPE_MATRIX;m||("rotationQuaternion"===T?(y=e.Animation.ANIMATIONTYPE_QUATERNION,E.rotationQuaternion=new e.Quaternion):y=e.Animation.ANIMATIONTYPE_VECTOR3);var g=null,v=[],L=0,N=!1;m&&a&&a.getKeys().length===h.length&&(g=a,N=!0),N||(g=new e.Animation(n,m?"_matrix":T,1,y,e.Animation.ANIMATIONLOOPMODE_CYCLE));for(var b=0;b<h.length;b++){var M=null;if("rotationQuaternion"===T?(M=e.Quaternion.FromArray([p[L],p[L+1],p[L+2],p[L+3]]),L+=4):(M=e.Vector3.FromArray([p[L],p[L+1],p[L+2]]),L+=3),m){var x=E,O=e.Vector3.Zero(),S=new e.Quaternion,R=e.Vector3.Zero(),F=x.getBaseMatrix();N&&a&&(F=a.getKeys()[b].value),F.decompose(R,S,O),"position"===T?O=M:"rotationQuaternion"===T?S=M:R=M,M=e.Matrix.Compose(R,S,O)}N?a&&(a.getKeys()[b].value=M):v.push({frame:h[b],value:M})}!N&&g&&(g.setKeys(v),E.animations.push(g)),a=g,r.scene.stopAnimation(E),r.scene.beginAnimation(E,0,h[h.length-1],!0,1)}else e.Tools.Warn("Creating animation named "+n+". 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r=0;r<e.jointNames.length;r++)if(e.jointNames[r]===t)return!0;return!1},A=function(t,r,n,o){for(var a in t.nodes){var i=t.nodes[a],s=a;if(i.jointName&&!T(n,i.jointName)){var l=p(i),u=new e.Bone(i.name||"",r,null,l);u.id=s,o.push({bone:u,node:i,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 _=null,E=0;E<o.length;E++)if(o[E].id===d[h]){_=o[E];break}_&&(_.bone._parent=f.bone,f.bone.children.push(_.bone))}},y=function(t,r,n,o,a){if(o||(o=new e.Skeleton(r.name||"","",t.scene)),!r.babylonSkeleton)return o;var i=[],s=[];A(t,o,r,i),o.bones=[];for(var l=0;l<r.jointNames.length;l++){var u=m(t,r.jointNames[l]);if(u){var c=u.node;if(c){var a=u.id,f=t.scene.getBoneByID(a);if(f)o.bones.push(f);else{for(var d=!1,h=null,T=0;T<l;T++){var y=m(t,r.jointNames[T]);if(y){var g=y.node;if(g){var v=g.children;if(v){d=!1;for(var L=0;L<v.length;L++)if(v[L]===a){h=_(t,r,r.jointNames[T],o),d=!0;break}if(d)break}}else e.Tools.Warn("Joint named "+r.jointNames[T]+" 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if("POSITION"===N){if(e.GLTFFileLoader.HomogeneousCoordinates){A.positions=new Float32Array(L.length-L.length/4);for(var b=0;b<L.length;b+=4)A.positions[b]=L[b],A.positions[b+1]=L[b+1],A.positions[b+2]=L[b+2]}else A.positions=new Float32Array(L.length),A.positions.set(L);d.push(A.positions.length)}else if(-1!==N.indexOf("TEXCOORD_")){var M=Number(N.split("_")[1]),x=e.VertexBuffer.UVKind+(0===M?"":M+1),O=new Float32Array(L.length);O.set(L),f(O),A.set(O,x)}else"JOINT"===N?(A.matricesIndices=new Float32Array(L.length),A.matricesIndices.set(L)):"WEIGHT"===N?(A.matricesWeights=new Float32Array(L.length),A.matricesWeights.set(L)):"COLOR"===N&&(A.colors=new Float32Array(L.length),A.colors.set(L));if(v=r.accessors[y.indices])L=t.GLTFUtils.GetBufferFromAccessor(r,v),A.indices=new Int32Array(L.length),A.indices.set(L),p.push(A.indices.length);else{for(var S=[],b=0;b<A.positions.length/3;b++)S.push(b);A.indices=new Int32Array(S),p.push(A.indices.length)}l.merge(A);var R=r.scene.getMaterialByID(y.material);s.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]+p[p.length-2])}}var F;s.length>1?(F=new e.MultiMaterial("multimat"+a,r.scene),F.subMaterials=s):F=new e.StandardMaterial("multimat"+a,r.scene),1===s.length&&(F=s[0]),i.material||(i.material=F),u.setAllVerticesData(l,!1),i.computeWorldMatrix(!0),i.subMeshes=[];for(var w=0,_=0;_<o.length;_++){var E=o[_],m=r.meshes[E];if(m)for(var T=0;T<m.primitives.length;T++)m.primitives[T].mode,e.SubMesh.AddToMesh(w,c[w],d[w],h[w],p[w],i,i,!0),w++}return i},v=function(e,t,r,n){e.position&&(e.position=t),(e.rotationQuaternion||e.rotation)&&(e.rotationQuaternion=r),e.scaling&&(e.scaling=n)},L=function(t,r,n){if(r.matrix){var o=new e.Vector3(0,0,0),a=new e.Quaternion,i=new e.Vector3(0,0,0);e.Matrix.FromArray(r.matrix).decompose(i,a,o),v(t,o,a,i)}else r.translation&&r.rotation&&r.scale&&v(t,e.Vector3.FromArray(r.translation),e.Quaternion.FromArray(r.rotation),e.Vector3.FromArray(r.scale));t.computeWorldMatrix(!0)},N=function(t,r,n,o){var a=null;if(t.importOnlyMeshes&&(r.skin||r.meshes)&&t.importMeshesNames&&t.importMeshesNames.length>0&&-1===t.importMeshesNames.indexOf(r.name||""))return null;if(r.skin){if(r.meshes){var i=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,i,0,i.babylonSkeleton,r.skin),i.babylonSkeleton||(i.babylonSkeleton=s.skeleton)),a=s}}else if(r.meshes){var s=g(t,r,r.mesh?[r.mesh]:r.meshes,n,r.babylonNode);a=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()),a=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),a=f}}}else{var d=t.lights[r.light];if(d)if("ambient"===d.type){var h=d[d.type],p=new e.HemisphericLight(r.light,e.Vector3.Zero(),t.scene);p.name=r.name||"",h.color&&(p.diffuse=e.Color3.FromArray(h.color)),a=p}else if("directional"===d.type){var _=d[d.type],E=new e.DirectionalLight(r.light,e.Vector3.Zero(),t.scene);E.name=r.name||"",_.color&&(E.diffuse=e.Color3.FromArray(_.color)),a=E}else if("point"===d.type){var m=d[d.type],T=new e.PointLight(r.light,e.Vector3.Zero(),t.scene);T.name=r.name||"",m.color&&(T.diffuse=e.Color3.FromArray(m.color)),a=T}else if("spot"===d.type){var A=d[d.type],N=new e.SpotLight(r.light,e.Vector3.Zero(),e.Vector3.Zero(),0,0,t.scene);N.name=r.name||"",A.color&&(N.diffuse=e.Color3.FromArray(A.color)),A.fallOfAngle&&(N.angle=A.fallOfAngle),A.fallOffExponent&&(N.exponent=A.fallOffExponent),a=N}}if(!r.jointName){if(r.babylonNode)return r.babylonNode;if(null===a){var b=new e.Mesh(r.name||"",t.scene);r.babylonNode=b,a=b}}if(null!==a){if(r.matrix&&a instanceof e.Mesh)L(a,r);else{var M=r.translation||[0,0,0],x=r.rotation||[0,0,0,1],O=r.scale||[1,1,1];v(a,e.Vector3.FromArray(M),e.Quaternion.FromArray(x),e.Vector3.FromArray(O))}a.updateCache(!0),r.babylonNode=a}return a},b=function(e,t,r,n){void 0===n&&(n=!1);var 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d=r.scene.getNodeByName(c.source||c.node||"");if(null===d&&(d=r.scene.getNodeByID(c.source||c.node||"")),null===d)continue;t.GLTFUtils.SetMatrix(r.scene,d,c,u,o.getEffect())}}else t.GLTFUtils.SetMatrix(r.scene,e,c,u,o.getEffect());else{var h=l[a.uniforms[u]];if(!h)continue;if(f===t.EParameterType.SAMPLER_2D){var p=r.textures[i.values?h:c.value].babylonTexture;if(null===p||void 0===p)continue;o.getEffect().setTexture(u,p)}else t.GLTFUtils.SetUniform(o.getEffect(),u,h,f)}}s(o)},O=function(e,r,n,o,a){var i=o.values||n.parameters,s=n.uniforms;for(var l in a){var u=a[l],c=u.type,f=i[s[l]];if(void 0===f&&(f=u.value),f){var d=function(e){return function(t){u.value&&e&&(r.setTexture(e,t),delete a[e])}};c===t.EParameterType.SAMPLER_2D?t.GLTFLoaderExtension.LoadTextureAsync(e,o.values?f:u.value,d(l),(function(){return d(null)})):u.value&&t.GLTFUtils.SetUniform(r,l,o.values?f:u.value,c)&&delete a[l]}}},S=function(e,t,r){return function(n,o){t.dispose(!0),r("Cannot compile program named 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H=k.blendFuncSeparate;H&&(H[0]===t.EBlendingFunction.SRC_ALPHA&&H[1]===t.EBlendingFunction.ONE_MINUS_SRC_ALPHA&&H[2]===t.EBlendingFunction.ONE&&H[3]===t.EBlendingFunction.ONE?U.alphaMode=e.Engine.ALPHA_COMBINE:H[0]===t.EBlendingFunction.ONE&&H[1]===t.EBlendingFunction.ONE&&H[2]===t.EBlendingFunction.ZERO&&H[3]===t.EBlendingFunction.ONE?U.alphaMode=e.Engine.ALPHA_ONEONE:H[0]===t.EBlendingFunction.SRC_ALPHA&&H[1]===t.EBlendingFunction.ONE&&H[2]===t.EBlendingFunction.ZERO&&H[3]===t.EBlendingFunction.ONE?U.alphaMode=e.Engine.ALPHA_ADD:H[0]===t.EBlendingFunction.ZERO&&H[1]===t.EBlendingFunction.ONE_MINUS_SRC_COLOR&&H[2]===t.EBlendingFunction.ONE&&H[3]===t.EBlendingFunction.ONE?U.alphaMode=e.Engine.ALPHA_SUBTRACT:H[0]===t.EBlendingFunction.DST_COLOR&&H[1]===t.EBlendingFunction.ZERO&&H[2]===t.EBlendingFunction.ONE&&H[3]===t.EBlendingFunction.ONE?U.alphaMode=e.Engine.ALPHA_MULTIPLY:H[0]===t.EBlendingFunction.SRC_ALPHA&&H[1]===t.EBlendingFunction.ONE_MINUS_SRC_COLOR&&H[2]===t.EBlendingFunction.ONE&&H[3]===t.EBlendingFunction.ONE&&(U.alphaMode=e.Engine.ALPHA_MAXIMIZED))}},i})();t.GLTFLoaderBase=I;var P=(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.dispose=function(){},r.prototype.importMeshAsync=function(r,n,o,a,i,s,l){var u=this;return n.useRightHandedSystem=!0,t.GLTFLoaderExtension.LoadRuntimeAsync(n,o,a,(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 a in t.nodes){var l=t.nodes[a];l.babylonNode instanceof e.AbstractMesh&&n.push(l.babylonNode)}for(var c in t.skins){var f=t.skins[c];f.babylonSkeleton instanceof e.Skeleton&&o.push(f.babylonSkeleton)}u._loadBuffersAsync(t,(function(){u._loadShadersAsync(t,(function(){w(t),M(t),!e.GLTFFileLoader.IncrementalLoading&&i&&i(n,[],o)}))}),s),e.GLTFFileLoader.IncrementalLoading&&i&&i(n,[],o)}),l),!0},r.prototype.loadAsync=function(r,n,o,a,i,s){var l=this;r.useRightHandedSystem=!0,t.GLTFLoaderExtension.LoadRuntimeAsync(r,n,o,(function(r){t.GLTFLoaderExtension.LoadRuntimeExtensionsAsync(r,(function(){l._createNodes(r),l._loadBuffersAsync(r,(function(){l._loadShadersAsync(r,(function(){w(r),M(r),e.GLTFFileLoader.IncrementalLoading||a()}))})),e.GLTFFileLoader.IncrementalLoading&&a()}),s)}),s)},r.prototype._loadShadersAsync=function(r,n){var o=!1,a=function(o,a){t.GLTFLoaderExtension.LoadShaderStringAsync(r,o,(function(i){r.loadedShaderCount++,i&&(e.Effect.ShadersStore[o+(a.type===t.EShaderType.VERTEX?"VertexShader":"PixelShader")]=i),r.loadedShaderCount===r.shaderscount&&n()}),(function(){e.Tools.Error("Error when loading shader program named "+o+" located 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r._DefaultMaterial},r._DefaultMaterial=null,r})();t.GLTFUtils=r})(e.GLTF1||(e.GLTF1={}))})(BABYLON||(BABYLON={}));var BABYLON;!(function(e){!(function(e){var t=(function(){function t(e){this._name=e}return Object.defineProperty(t.prototype,"name",{get:function(){return this._name},enumerable:!0,configurable:!0}),t.prototype.loadRuntimeAsync=function(e,t,r,n,o){return!1},t.prototype.loadRuntimeExtensionsAsync=function(e,t,r){return!1},t.prototype.loadBufferAsync=function(e,t,r,n,o){return!1},t.prototype.loadTextureBufferAsync=function(e,t,r,n){return!1},t.prototype.createTextureAsync=function(e,t,r,n,o){return!1},t.prototype.loadShaderStringAsync=function(e,t,r,n){return!1},t.prototype.loadMaterialAsync=function(e,t,r,n){return!1},t.LoadRuntimeAsync=function(r,n,o,a,i){t.ApplyExtensions((function(e){return e.loadRuntimeAsync(r,n,o,a,i)}),(function(){setTimeout((function(){a(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,a,i){t.ApplyExtensions((function(e){return e.loadBufferAsync(r,n,o,a,i)}),(function(){e.GLTFLoaderBase.LoadBufferAsync(r,n,o,a,i)}))},t.LoadTextureAsync=function(e,r,n,o){t.LoadTextureBufferAsync(e,r,(function(a){return t.CreateTextureAsync(e,r,a,n,o)}),o)},t.LoadShaderStringAsync=function(r,n,o,a){t.ApplyExtensions((function(e){return e.loadShaderStringAsync(r,n,o,a)}),(function(){e.GLTFLoaderBase.LoadShaderStringAsync(r,n,o,a)}))},t.LoadMaterialAsync=function(r,n,o,a){t.ApplyExtensions((function(e){return e.loadMaterialAsync(r,n,o,a)}),(function(){e.GLTFLoaderBase.LoadMaterialAsync(r,n,o,a)}))},t.LoadTextureBufferAsync=function(r,n,o,a){t.ApplyExtensions((function(e){return e.loadTextureBufferAsync(r,n,o,a)}),(function(){e.GLTFLoaderBase.LoadTextureBufferAsync(r,n,o,a)}))},t.CreateTextureAsync=function(r,n,o,a,i){t.ApplyExtensions((function(e){return e.createTextureAsync(r,n,o,a,i)}),(function(){e.GLTFLoaderBase.CreateTextureAsync(r,n,o,a,i)}))},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,a){var i=r.json.extensionsUsed;return!(!i||-1===i.indexOf(this.name)||!r.bin)&&(this._bin=r.bin,o(e.GLTFLoaderBase.CreateRuntime(r.json,t,n)),!0)},r.prototype.loadBufferAsync=function(e,t,r,n){return-1!==e.extensionsUsed.indexOf(this.name)&&("binary_glTF"===t&&(r(this._bin),!0))},r.prototype.loadTextureBufferAsync=function(t,r,n,o){var a=t.textures[r],i=t.images[a.source];if(!(i.extensions&&this.name in i.extensions))return!1;var s=i.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 a=t.shaders[r];if(!(a.extensions&&this.name in a.extensions))return!1;var i=a.extensions[this.name],s=t.bufferViews[i.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 a=o.lights;if(a)for(var i in a){var s=a[i];switch(s.type){case"ambient":var l=new e.HemisphericLight(s.name,new e.Vector3(0,1,0),t.scene),u=s.ambient;u&&(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;f&&(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;h&&(d.diffuse=e.Color3.FromArray(h.color||[1,1,1]));break;case"spot":var p=s.spot;if(p){var _=new e.SpotLight(s.name,new e.Vector3(0,10,0),new e.Vector3(0,-1,0),p.fallOffAngle||Math.PI,p.fallOffExponent||0,t.scene);_.diffuse=e.Color3.FromArray(p.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 a=t.materials[r];if(!a||!a.extensions)return!1;var i=a.extensions[this.name];if(!i)return!1;var s=new e.StandardMaterial(r,t.scene);return s.sideOrientation=e.Material.CounterClockWiseSideOrientation,"CONSTANT"===i.technique&&(s.disableLighting=!0),s.backFaceCulling=void 0!==i.doubleSided&&!i.doubleSided,s.alpha=void 0===i.values.transparency?1:i.values.transparency,s.specularPower=void 0===i.values.shininess?0:i.values.shininess,"string"==typeof i.values.ambient?this._loadTexture(t,i.values.ambient,s,"ambientTexture",o):s.ambientColor=e.Color3.FromArray(i.values.ambient||[0,0,0]),"string"==typeof i.values.diffuse?this._loadTexture(t,i.values.diffuse,s,"diffuseTexture",o):s.diffuseColor=e.Color3.FromArray(i.values.diffuse||[0,0,0]),"string"==typeof i.values.emission?this._loadTexture(t,i.values.emission,s,"emissiveTexture",o):s.emissiveColor=e.Color3.FromArray(i.values.emission||[0,0,0]),"string"==typeof i.values.specular?this._loadTexture(t,i.values.specular,s,"specularTexture",o):s.specularColor=e.Color3.FromArray(i.values.specular||[0,0,0]),!0},n.prototype._loadTexture=function(e,r,n,o,a){t.GLTFLoaderBase.LoadTextureBufferAsync(e,r,(function(i){t.GLTFLoaderBase.CreateTextureAsync(e,r,i,(function(e){return n[o]=e}),a)}),a)},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._disposed=!1,this._defaultSampler={},this._renderReady=!1,this._requests=new Array,this._renderReadyObservable=new e.Observable,this._renderPendingCount=0,this._loaderPendingCount=0,this._loaderTrackers=new Array,this._parent=t,n._progressEventFactory||("function"==typeof window.ProgressEvent?n._progressEventFactory=n._createProgressEventByConstructor:n._progressEventFactory=n._createProgressEventByDocument)}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._createProgressEventByConstructor=function(e,t){return new ProgressEvent(e,t)},n._createProgressEventByDocument=function(e,t){var r=document.createEvent("ProgressEvent");return r.initProgressEvent(e,!1,!1,t.lengthComputable,t.loaded,t.total),r},n.prototype.dispose=function(){if(!this._disposed){this._disposed=!0;for(var e=0,t=this._requests;e<t.length;e++){var r=t[e];r.readyState!==(XMLHttpRequest.DONE||4)&&r.abort()}if(this._gltf.textures)for(var n=0,o=this._gltf.textures;n<o.length;n++){var a=o[n];a.url&&URL.revokeObjectURL(a.url)}}},n.prototype.importMeshAsync=function(e,t,r,n,o,a,i){var s=this;this._loadAsync(e,t,r,n,(function(){o(s._getMeshes(),[],s._getSkeletons())}),a,i)},n.prototype.loadAsync=function(e,t,r,n,o,a){this._loadAsync(null,e,t,r,n,o,a)},n.prototype._loadAsync=function(e,t,r,n,o,a,i){var s=this;this._tryCatchOnError((function(){s._loadData(r),s._babylonScene=t,s._rootUrl=n,s._successCallback=o,s._progressCallback=a,s._errorCallback=i,s._addPendingData(s),s._loadDefaultScene(e),s._loadAnimations(),s._removePendingData(s)}))},n.prototype._onProgress=function(){if(this._progressCallback){for(var e=0,t=0,r=0,o=this._requests;r<o.length;r++){var a=o[r];if(!a._loaded||!a._total)return;e+=a._loaded,t+=a._total}this._progressCallback(n._progressEventFactory("GLTFLoaderProgress",{lengthComputable:!0,loaded:e,total:t}))}},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)},n.prototype._onComplete=function(){this._parent.onComplete&&this._parent.onComplete(),this.dispose()},n.prototype._loadData=function(t){if(this._gltf=t.json,n._AssignIndices(this._gltf.accessors),n._AssignIndices(this._gltf.animations),n._AssignIndices(this._gltf.buffers),n._AssignIndices(this._gltf.bufferViews),n._AssignIndices(this._gltf.images),n._AssignIndices(this._gltf.materials),n._AssignIndices(this._gltf.meshes),n._AssignIndices(this._gltf.nodes),n._AssignIndices(this._gltf.samplers),n._AssignIndices(this._gltf.scenes),n._AssignIndices(this._gltf.skins),n._AssignIndices(this._gltf.textures),t.bin){var r=this._gltf.buffers;if(r&&r[0]&&!r[0].uri){var o=r[0];(o.byteLength<t.bin.byteLength-3||o.byteLength>t.bin.byteLength)&&e.Tools.Warn("Binary buffer length ("+o.byteLength+") from JSON does not match chunk length ("+t.bin.byteLength+")"),o.loadedData=t.bin}else e.Tools.Warn("Unexpected BIN chunk")}},n.prototype._getMeshes=function(){var e=new Array;e.push(this._rootNode.babylonMesh);var t=this._gltf.nodes;if(t)for(var r=0,n=t;r<n.length;r++){var o=n[r];o.babylonMesh&&e.push(o.babylonMesh)}return e},n.prototype._getSkeletons=function(){var e=new Array,t=this._gltf.skins;if(t)for(var r=0,n=t;r<n.length;r++){var o=n[r];o.babylonSkeleton&&e.push(o.babylonSkeleton)}return e},n.prototype._startAnimations=function(){var t=this._gltf.animations;if(t)switch(this._parent.animationStartMode){case e.GLTFLoaderAnimationStartMode.NONE:break;case e.GLTFLoaderAnimationStartMode.FIRST:for(var r=t[0],n=0,o=r.targets;n<o.length;n++){var a=o[n];this._babylonScene.beginAnimation(a,0,Number.MAX_VALUE,!0)}break;case e.GLTFLoaderAnimationStartMode.ALL:for(var i=0,s=t;i<s.length;i++)for(var r=s[i],l=0,u=r.targets;l<u.length;l++){var a=u[l];this._babylonScene.beginAnimation(a,0,Number.MAX_VALUE,!0)}break;default:return void e.Tools.Error("Invalid animation start mode "+this._parent.animationStartMode)}},n.prototype._loadDefaultScene=function(e){var t=n._GetProperty(this._gltf.scenes,this._gltf.scene||0);if(!t)throw new Error("Failed to find scene "+(this._gltf.scene||0));this._loadScene("#/scenes/"+t.index,t,e)},n.prototype._loadScene=function(t,r,o){var a=this;switch(this._rootNode={babylonMesh:new e.Mesh("__root__",this._babylonScene)},this._parent.coordinateSystemMode){case e.GLTFLoaderCoordinateSystemMode.AUTO:this._babylonScene.useRightHandedSystem||(this._rootNode.rotation=[0,1,0,0],this._rootNode.scale=[1,1,-1],this._loadTransform(this._rootNode));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)}this._parent.onMeshLoaded&&this._parent.onMeshLoaded(this._rootNode.babylonMesh);var i=r.nodes;if(this._traverseNodes(t,i,(function(e,t){return e.parent=t,!0}),this._rootNode),o){o instanceof Array||(o=[o]);var s=new Array;this._traverseNodes(t,i,(function(e){return-1===o.indexOf(e.name)||(s.push(e.index),e.parent=a._rootNode,!1)}),this._rootNode),i=s}for(var l=0,u=i;l<u.length;l++){var c=u[l],f=n._GetProperty(this._gltf.nodes,c);if(!f)throw new Error(t+": Failed to find node "+c);this._loadNode("#/nodes/"+c,f)}this._rootNode.babylonMesh.setEnabled(!1)},n.prototype._loadNode=function(r,o){if(!t.GLTFLoaderExtension.LoadNode(this,r,o)){if(o.babylonMesh=new e.Mesh(o.name||"mesh"+o.index,this._babylonScene),o.babylonMesh.hasVertexAlpha=!0,this._loadTransform(o),null!=o.mesh){var a=n._GetProperty(this._gltf.meshes,o.mesh);if(!a)throw new Error(r+": Failed to find mesh "+o.mesh);this._loadMesh("#/meshes/"+o.mesh,o,a)}if(o.babylonMesh.parent=o.parent.babylonMesh,o.babylonAnimationTargets=o.babylonAnimationTargets||[],o.babylonAnimationTargets.push(o.babylonMesh),null!=o.skin){var i=n._GetProperty(this._gltf.skins,o.skin);if(!i)throw new Error(r+": Failed to find skin "+o.skin);this._loadSkinAsync("#/skins/"+o.skin,i,(function(){o.babylonMesh.skeleton=i.babylonSkeleton,o.babylonMesh._refreshBoundingInfo(!0)})),o.babylonMesh.parent=this._rootNode.babylonMesh,o.babylonMesh.position=e.Vector3.Zero(),o.babylonMesh.rotationQuaternion=e.Quaternion.Identity(),o.babylonMesh.scaling=e.Vector3.One()}if(o.camera,o.children)for(var s=0,l=o.children;s<l.length;s++){var u=l[s],c=n._GetProperty(this._gltf.nodes,u);if(!c)throw new Error(r+": Failed to find child node "+u);this._loadNode("#/nodes/"+u,c)}this._parent.onMeshLoaded&&this._parent.onMeshLoaded(o.babylonMesh)}},n.prototype._loadMesh=function(t,r,o){var a=this,i=o.primitives;if(!i||0===i.length)throw new Error(t+": Primitives are missing");if(this._createMorphTargets(t,r,o),this._loadAllVertexDataAsync(t,o,(function(){a._loadMorphTargets(t,r,o);for(var n=new e.VertexData,s=0,l=i;s<l.length;s++){var u=l[s];n.merge(u.vertexData)}new e.Geometry(r.babylonMesh.name,a._babylonScene,n,!1,r.babylonMesh),r.babylonMesh.subMeshes=[];for(var c=0,f=0,d=0;d<i.length;d++){var h=i[d].vertexData,p=h.positions.length,_=h.indices.length;e.SubMesh.AddToMesh(d,c,p,f,_,r.babylonMesh),c+=p,f+=_}})),1===i.length){var s=i[0];if(null==s.material)r.babylonMesh.material=this._getDefaultMaterial();else{var l=n._GetProperty(this._gltf.materials,s.material);if(!l)throw new Error(t+": Failed to find material "+s.material);this._loadMaterial("#/materials/"+l.index,l,(function(e,t){t&&a._parent.onMaterialLoaded&&a._parent.onMaterialLoaded(e),r.babylonMesh.material=e}))}}else{var u=new e.MultiMaterial(r.babylonMesh.name,this._babylonScene);r.babylonMesh.material=u;for(var c=u.subMaterials,f=this,d=0;d<i.length;d++)!(function(e){var r=i[e];if(null==r.material)c[e]=f._getDefaultMaterial();else{var o=n._GetProperty(f._gltf.materials,r.material);if(!o)throw new Error(t+": Failed to find material "+r.material);f._loadMaterial("#/materials/"+o.index,o,(function(t,r){r&&a._parent.onMaterialLoaded&&a._parent.onMaterialLoaded(t),c[e]=t}))}})(d)}},n.prototype._loadAllVertexDataAsync=function(e,t,r){for(var n=t.primitives,o=n.length,a=this,i=0;i<n.length;i++)!(function(i){var s=n[i];a._loadVertexDataAsync(e+"/primitive/"+i,t,s,(function(e){s.vertexData=e,0==--o&&r()}))})(i)},n.prototype._convertToFloat4TextureCoordArray=function(e,r,n){if(n.componentType==t.EComponentType.FLOAT)return r;var o=r,a=1;switch(n.componentType){case t.EComponentType.UNSIGNED_BYTE:a=1/255;break;case t.EComponentType.UNSIGNED_SHORT:a=1/65535;break;default:throw new Error(e+": Invalid component type ("+n.componentType+")")}for(var i=new Float32Array(2*n.count),s=0;s<i.length;++s)i[s]=o[s]*a;return i},n.prototype._convertToFloat4ColorArray=function(e,r,o){var a=n._GetNumComponents(e,o.type);if(4===a&&o.componentType===t.EComponentType.FLOAT)return r;var i=r,s=1;switch(o.componentType){case t.EComponentType.FLOAT:s=1;break;case t.EComponentType.UNSIGNED_BYTE:s=1/255;break;case t.EComponentType.UNSIGNED_SHORT:s=1/65535;break;default:throw new Error(e+": Invalid component type ("+o.componentType+")")}var l=new Float32Array(4*o.count);if(4===a)for(var u=0;u<l.length;++u)l[u]=i[u]*s;else for(var c=0,u=0;u<l.length;++u)l[u]=(u+1)%4==0?1:i[c++]*s;return l},n.prototype._loadVertexDataAsync=function(r,o,a,i){var s=this,l=a.attributes;if(!l)throw new Error(r+": Attributes are missing");if(a.mode&&a.mode!==t.EMeshPrimitiveMode.TRIANGLES)throw new Error(r+": Mode "+a.mode+" is not currently supported");var u=new e.VertexData,c=Object.keys(l).length,f=this;for(var d in l)!(function(t){var o=n._GetProperty(f._gltf.accessors,l[t]);if(!o)throw new Error(r+": Failed to find attribute '"+t+"' accessor "+l[t]);f._loadAccessorAsync("#/accessors/"+o.index,o,(function(l){switch(t){case"POSITION":u.positions=l;break;case"NORMAL":u.normals=l;break;case"TANGENT":u.tangents=l;break;case"TEXCOORD_0":u.uvs=s._convertToFloat4TextureCoordArray(r,l,o);break;case"TEXCOORD_1":u.uvs2=s._convertToFloat4TextureCoordArray(r,l,o);break;case"JOINTS_0":u.matricesIndices=new Float32Array(Array.prototype.slice.apply(l));break;case"WEIGHTS_0":u.matricesWeights=l;break;case"COLOR_0":u.colors=s._convertToFloat4ColorArray(r,l,o);break;default:e.Tools.Warn(r+": Ignoring unrecognized attribute '"+t+"'")}if(0==--c)if(null==a.indices){u.indices=new Uint32Array(u.positions.length/3);for(var f=0;f<u.indices.length;f++)u.indices[f]=f;i(u)}else{var d=n._GetProperty(s._gltf.accessors,a.indices);if(!d)throw new Error(r+": Failed to find indices accessor "+a.indices);s._loadAccessorAsync("#/accessors/"+d.index,d,(function(e){u.indices=e,i(u)}))}}))})(d)},n.prototype._createMorphTargets=function(t,r,n){var o=n.primitives,a=o[0].targets;if(a){for(var i=0,s=o;i<s.length;i++){var l=s[i];if(!l.targets||l.targets.length!=a.length)throw new Error(t+": All primitives are required to list the same number of targets")}var u=new e.MorphTargetManager;r.babylonMesh.morphTargetManager=u;for(var c=0;c<a.length;c++){var f=r.weights?r.weights[c]:n.weights?n.weights[c]:0;u.addTarget(new e.MorphTarget("morphTarget"+c,f))}}},n.prototype._loadMorphTargets=function(t,r,n){var o=r.babylonMesh.morphTargetManager;o&&this._loadAllMorphTargetVertexDataAsync(t,r,n,(function(){for(var r=o.numTargets,a=0;a<r;a++){for(var i=new e.VertexData,s=0,l=n.primitives;s<l.length;s++){var u=l[s];i.merge(u.targetsVertexData[a],{tangentLength:3})}if(!i.positions)throw new Error(t+": Positions are missing");var c=o.getTarget(a);c.setPositions(i.positions),c.setNormals(i.normals),c.setTangents(i.tangents)}}))},n.prototype._loadAllMorphTargetVertexDataAsync=function(e,t,r,n){for(var o=r.primitives.length*t.babylonMesh.morphTargetManager.numTargets,a=this,i=0,s=r.primitives;i<s.length;i++){var l=s[i];!(function(t){var r=t.targets;t.targetsVertexData=new Array(r.length);for(var i=0;i<r.length;i++)!(function(i){a._loadMorphTargetVertexDataAsync(e+"/targets/"+i,t.vertexData,r[i],(function(e){t.targetsVertexData[i]=e,0==--o&&n()}))})(i)})(l)}},n.prototype._loadMorphTargetVertexDataAsync=function(t,r,o,a){var i=new e.VertexData,s=Object.keys(o).length,l=this;for(var u in o)!(function(u){var c=n._GetProperty(l._gltf.accessors,o[u]);if(!c)throw new Error(t+": Failed to find attribute '"+u+"' accessor "+o[u]);l._loadAccessorAsync("#/accessors/"+c.index,c,(function(n){var o=n;switch(u){case"POSITION":for(var l=0;l<o.length;l++)o[l]+=r.positions[l];i.positions=o;break;case"NORMAL":for(var l=0;l<o.length;l++)o[l]+=r.normals[l];i.normals=o;break;case"TANGENT":for(var l=0,c=0;l<o.length;l++,c++)o[l]+=r.tangents[c],(l+1)%3==0&&c++;i.tangents=o;break;default:e.Tools.Warn(t+": Ignoring unrecognized attribute '"+u+"'")}0==--s&&a(i)}))})(u)},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._loadSkinAsync=function(t,r,o){var a=this;if(r.babylonSkeleton)return void o();var i="skeleton"+r.index;if(r.babylonSkeleton=new e.Skeleton(r.name||i,i,this._babylonScene),null==r.inverseBindMatrices)this._loadBones(t,r,null),o();else{var s=n._GetProperty(this._gltf.accessors,r.inverseBindMatrices);if(!s)throw new Error(t+": Failed to find inverse bind matrices attribute "+r.inverseBindMatrices);this._loadAccessorAsync("#/accessors/"+s.index,s,(function(e){a._loadBones(t,r,e),o()}))}},n.prototype._createBone=function(t,r,n,o,a,i){var s=new e.Bone(t.name||"bone"+t.index,r.babylonSkeleton,n,o,null,a,i);return t.babylonAnimationTargets=t.babylonAnimationTargets||[],t.babylonAnimationTargets.push(s),s},n.prototype._loadBones=function(e,t,r){for(var o={},a=0,i=t.joints;a<i.length;a++){var s=i[a],l=n._GetProperty(this._gltf.nodes,s);if(!l)throw new Error(e+": Failed to find joint "+s);this._loadBone(l,t,r,o)}},n.prototype._loadBone=function(t,r,n,o){var a=o[t.index];if(a)return a;var i=r.joints.indexOf(t.index),s=e.Matrix.Identity();n&&-1!==i&&(s=e.Matrix.FromArray(n,16*i),s.invertToRef(s));var l=null;return t.parent!==this._rootNode&&(l=this._loadBone(t.parent,r,n,o),s.multiplyToRef(l.getInvertedAbsoluteTransform(),s)),a=this._createBone(t,r,l,this._getNodeMatrix(t),s,i),o[t.index]=a,a},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,t,r,o){for(var a=0,i=t;a<i.length;a++){var s=i[a],l=n._GetProperty(this._gltf.nodes,s);if(!l)throw new Error(e+": Failed to find node "+s);this._traverseNode(e,l,r,o)}},n.prototype._traverseNode=function(e,r,n,o){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 t=0;t<e.length;t++){var r=e[t];this._loadAnimation("#/animations/"+t,r)}},n.prototype._loadAnimation=function(e,t){t.targets=[];for(var r=0;r<t.channels.length;r++){var o=n._GetProperty(t.channels,r);if(!o)throw new Error(e+": Failed to find channel "+r);var a=n._GetProperty(t.samplers,o.sampler);if(!a)throw new Error(e+": Failed to find sampler "+o.sampler);this._loadAnimationChannel(t,e+"/channels/"+r,o,e+"/samplers/"+o.sampler,a)}},n.prototype._loadAnimationChannel=function(t,r,o,a,i){var s=n._GetProperty(this._gltf.nodes,o.target.node);if(!s)throw new Error(r+": 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(r+": Invalid target path "+o.target.path)}var c,f,d=function(){if(c&&f){var r,n=0;switch(l){case"position":r=function(){var t=e.Vector3.FromArray(f,n);return n+=3,t};break;case"rotationQuaternion":r=function(){var t=e.Quaternion.FromArray(f,n);return n+=4,t};break;case"scaling":r=function(){var t=e.Vector3.FromArray(f,n);return n+=3,t};break;case"influence":r=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(i.interpolation){case"LINEAR":o=function(e){return{frame:c[e],value:r()}};break;case"CUBICSPLINE":o=function(e){return{frame:c[e],inTangent:r(),value:r(),outTangent:r()}};break;default:throw new Error(a+": Invalid interpolation "+i.interpolation)}var d;if(1===c.length){var h=o(0);d=[{frame:h.frame,value:h.value},{frame:h.frame+1,value:h.value}]}else{d=new Array(c.length);for(var p=0;p<c.length;p++)d[p]=o(p)}if("influence"===l)for(var _=s.babylonMesh.morphTargetManager,E=0;E<_.numTargets;E++)!(function(r){var n=_.getTarget(r),o=(t.name||"anim"+t.index)+"_"+r,a=new e.Animation(o,l,1,u);a.setKeys(d.map((function(e){return{frame:e.frame,inTangent:e.inTangent?e.inTangent[r]:void 0,value:e.value[r],outTangent:e.outTangent?e.outTangent[r]:void 0}}))),n.animations.push(a),t.targets.push(n)})(E);else{var m=t.name||"anim"+t.index,T=new e.Animation(m,l,1,u);if(T.setKeys(d),s.babylonAnimationTargets)for(var A=0,y=s.babylonAnimationTargets;A<y.length;A++){var g=y[A];g.animations.push(T.clone()),t.targets.push(g)}}}},h=n._GetProperty(this._gltf.accessors,i.input);if(!h)throw new Error(a+": Failed to find input accessor "+i.input);this._loadAccessorAsync("#/accessors/"+h.index,h,(function(e){c=e,d()}));var p=n._GetProperty(this._gltf.accessors,i.output);if(!p)throw new Error(a+": Failed to find output accessor "+i.output);this._loadAccessorAsync("#/accessors/"+p.index,p,(function(e){f=e,d()}))},n.prototype._loadBufferAsync=function(t,r,n){var o=this;if(this._addPendingData(r),r.loadedData)n(r.loadedData),this._removePendingData(r);else if(r.loadedObservable)r.loadedObservable.add((function(e){n(e.loadedData),o._removePendingData(e)}));else{if(!r.uri)throw new Error(t+": Uri is missing");r.loadedObservable=new e.Observable,r.loadedObservable.add((function(e){n(e.loadedData),o._removePendingData(e)})),this._loadUriAsync(t,r.uri,(function(e){r.loadedData=e,r.loadedObservable.notifyObservers(r),r.loadedObservable=void 0}))}},n.prototype._loadBufferViewAsync=function(e,t,r){var o=n._GetProperty(this._gltf.buffers,t.buffer);if(!o)throw new Error(e+": Failed to find buffer "+t.buffer);this._loadBufferAsync("#/buffers/"+o.index,o,(function(n){var o;try{o=new Uint8Array(n.buffer,n.byteOffset+(t.byteOffset||0),t.byteLength)}catch(t){throw new Error(e+": "+t.message)}r(o)}))},n.prototype._loadAccessorAsync=function(r,o,a){var i=this;if(o.sparse)throw new Error(r+": Sparse accessors are not currently supported");var s=n._GetProperty(this._gltf.bufferViews,o.bufferView);if(!s)throw new Error(r+": Failed to find buffer view "+o.bufferView);this._loadBufferViewAsync("#/bufferViews/"+s.index,s,(function(l){var u,c=n._GetNumComponents(r,o.type),f=o.byteOffset||0,d=s.byteStride;0===d&&e.Tools.Warn(r+": Byte stride of 0 is not valid");try{switch(o.componentType){case t.EComponentType.BYTE:u=i._buildArrayBuffer(Float32Array,l,f,o.count,c,d);break;case t.EComponentType.UNSIGNED_BYTE:u=i._buildArrayBuffer(Uint8Array,l,f,o.count,c,d);break;case t.EComponentType.SHORT:u=i._buildArrayBuffer(Int16Array,l,f,o.count,c,d);break;case t.EComponentType.UNSIGNED_SHORT:u=i._buildArrayBuffer(Uint16Array,l,f,o.count,c,d);break;case t.EComponentType.UNSIGNED_INT:u=i._buildArrayBuffer(Uint32Array,l,f,o.count,c,d);break;case t.EComponentType.FLOAT:u=i._buildArrayBuffer(Float32Array,l,f,o.count,c,d);break;default:throw new Error(r+": Invalid component type "+o.componentType)}}catch(e){throw new Error(r+": "+e)}a(u)}))},n.prototype._buildArrayBuffer=function(e,t,r,n,o,a){r+=t.byteOffset;var i=n*o;if(!a||a===o*e.BYTES_PER_ELEMENT)return new e(t.buffer,r,i);for(var s=a/e.BYTES_PER_ELEMENT,l=new e(t.buffer,r,s*n),u=new e(i),c=0,f=0;f<i;){for(var d=0;d<o;d++)u[f]=l[c+d],f++;c+=s}return u},n.prototype._addPendingData=function(e){this._renderReady||this._renderPendingCount++,this._addLoaderPendingData(e)},n.prototype._removePendingData=function(e){var t=this;this._renderReady||0==--this._renderPendingCount&&(this._addLoaderPendingData(this),this._compileMaterialsAsync((function(){t._compileShadowGeneratorsAsync((function(){t._removeLoaderPendingData(t),t._renderReady=!0,t._onRenderReady()}))}))),this._removeLoaderPendingData(e)},n.prototype._addLoaderPendingData=function(e){this._loaderPendingCount++;for(var t=0,r=this._loaderTrackers;t<r.length;t++){r[t]._addPendingData(e)}},n.prototype._removeLoaderPendingData=function(e){for(var t=0,r=this._loaderTrackers;t<r.length;t++){r[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),1),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(t,r){var o=r.babylonMaterial;o.metallic=1,o.roughness=1;var a=r.pbrMetallicRoughness;if(a){if(o.albedoColor=a.baseColorFactor?e.Color3.FromArray(a.baseColorFactor):new e.Color3(1,1,1),o.metallic=null==a.metallicFactor?1:a.metallicFactor,o.roughness=null==a.roughnessFactor?1:a.roughnessFactor,a.baseColorTexture){var i=n._GetProperty(this._gltf.textures,a.baseColorTexture.index);if(!i)throw new Error(t+": Failed to find base color texture "+a.baseColorTexture.index);o.albedoTexture=this._loadTexture("#/textures/"+i.index,i,a.baseColorTexture.texCoord)}if(a.metallicRoughnessTexture){var i=n._GetProperty(this._gltf.textures,a.metallicRoughnessTexture.index);if(!i)throw new Error(t+": Failed to find metallic roughness texture "+a.metallicRoughnessTexture.index);o.metallicTexture=this._loadTexture("#/textures/"+i.index,i,a.metallicRoughnessTexture.texCoord),o.useMetallnessFromMetallicTextureBlue=!0,o.useRoughnessFromMetallicTextureGreen=!0,o.useRoughnessFromMetallicTextureAlpha=!1}this._loadMaterialAlphaProperties(t,r,a.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(t,r){var o=r.babylonMaterial;if(o.emissiveColor=r.emissiveFactor?e.Color3.FromArray(r.emissiveFactor):new e.Color3(0,0,0),r.doubleSided&&(o.backFaceCulling=!1,o.twoSidedLighting=!0),r.normalTexture){var a=n._GetProperty(this._gltf.textures,r.normalTexture.index);if(!a)throw new Error(t+": Failed to find normal texture "+r.normalTexture.index);o.bumpTexture=this._loadTexture("#/textures/"+a.index,a,r.normalTexture.texCoord),o.invertNormalMapX=!this._babylonScene.useRightHandedSystem,o.invertNormalMapY=this._babylonScene.useRightHandedSystem,null!=r.normalTexture.scale&&(o.bumpTexture.level=r.normalTexture.scale)}if(r.occlusionTexture){var a=n._GetProperty(this._gltf.textures,r.occlusionTexture.index);if(!a)throw new Error(t+": Failed to find occlusion texture "+r.occlusionTexture.index);o.ambientTexture=this._loadTexture("#/textures/"+a.index,a,r.occlusionTexture.texCoord),o.useAmbientInGrayScale=!0,null!=r.occlusionTexture.strength&&(o.ambientTextureStrength=r.occlusionTexture.strength)}if(r.emissiveTexture){var a=n._GetProperty(this._gltf.textures,r.emissiveTexture.index);if(!a)throw new Error(t+": Failed to find emissive texture "+r.emissiveTexture.index);o.emissiveTexture=this._loadTexture("#/textures/"+a.index,a,r.emissiveTexture.texCoord)}},n.prototype._loadMaterialAlphaProperties=function(t,r,n){var o=r.babylonMaterial;switch(r.alphaMode||"OPAQUE"){case"OPAQUE":o.transparencyMode=e.PBRMaterial.PBRMATERIAL_OPAQUE;break;case"MASK":o.transparencyMode=e.PBRMaterial.PBRMATERIAL_ALPHATEST,o.alphaCutOff=null==r.alphaCutoff?.5:r.alphaCutoff,n&&(0==n[3]?o.alphaCutOff=1:o.alphaCutOff/=n[3]),o.albedoTexture&&(o.albedoTexture.hasAlpha=!0);break;case"BLEND":o.transparencyMode=e.PBRMaterial.PBRMATERIAL_ALPHABLEND,n&&(o.alpha=n[3]),o.albedoTexture&&(o.albedoTexture.hasAlpha=!0,o.useAlphaFromAlbedoTexture=!0);break;default:throw new Error(t+": Invalid alpha mode "+r.alphaMode)}},n.prototype._loadTexture=function(t,r,o){var a=this,i=void 0==r.sampler?this._defaultSampler:n._GetProperty(this._gltf.samplers,r.sampler);if(!i)throw new Error(t+": Failed to find sampler "+r.sampler);this._loadSampler("#/samplers/"+i.index,i),this._addPendingData(r);var s=new e.Texture(null,this._babylonScene,i.noMipMaps,!1,i.samplingMode,function(){a._tryCatchOnError((function(){a._removePendingData(r)}))},function(e){a._tryCatchOnError((function(){throw new Error(t+": "+e)}))});if(r.url)s.updateURL(r.url);else if(r.dataReadyObservable)r.dataReadyObservable.add((function(e){s.updateURL(e.url)}));else{r.dataReadyObservable=new e.Observable,r.dataReadyObservable.add((function(e){s.updateURL(e.url)}));var l=n._GetProperty(this._gltf.images,r.source);if(!l)throw new Error(t+": Failed to find source "+r.source);this._loadImageAsync("#/images/"+l.index,l,(function(e){r.url=URL.createObjectURL(new Blob([e],{type:l.mimeType})),r.dataReadyObservable.notifyObservers(r),r.dataReadyObservable=void 0}))}return s.coordinatesIndex=o||0,s.wrapU=i.wrapU,s.wrapV=i.wrapV,s.name=r.name||"texture"+r.index,this._parent.onTextureLoaded&&this._parent.onTextureLoaded(s),s},n.prototype._loadSampler=function(e,r){void 0==r.noMipMaps&&(r.noMipMaps=r.minFilter===t.ETextureMinFilter.NEAREST||r.minFilter===t.ETextureMinFilter.LINEAR,r.samplingMode=n._GetTextureSamplingMode(e,r.magFilter,r.minFilter),r.wrapU=n._GetTextureWrapMode(e,r.wrapS),r.wrapV=n._GetTextureWrapMode(e,r.wrapT))},n.prototype._loadImageAsync=function(e,t,r){if(t.uri)this._loadUriAsync(e,t.uri,r);else{var o=n._GetProperty(this._gltf.bufferViews,t.bufferView);if(!o)throw new Error(e+": Failed to find buffer view "+t.bufferView);this._loadBufferViewAsync("#/bufferViews/"+o.index,o,r)}},n.prototype._loadUriAsync=function(r,n,o){var a=this;if(t.GLTFUtils.IsBase64(n))return void o(new Uint8Array(t.GLTFUtils.DecodeBase64(n)));if(!t.GLTFUtils.ValidateUri(n))throw new Error(r+": Uri '"+n+"' is invalid");var i=e.Tools.LoadFile(this._rootUrl+n,(function(e){a._tryCatchOnError((function(){o(new Uint8Array(e))}))}),(function(e){a._tryCatchOnError((function(){i&&!a._renderReady&&(i._loaded=e.loaded,i._total=e.total,a._onProgress())}))}),this._babylonScene.database,!0,(function(e){a._tryCatchOnError((function(){throw new Error(r+": Failed to load '"+n+"'"+(e?": "+e.status+" "+e.statusText:""))}))}));i&&(i._loaded=null,i._total=null,this._requests.push(i))},n.prototype._tryCatchOnError=function(t){if(!this._disposed)try{t()}catch(t){e.Tools.Error("glTF Loader: "+t.message),this._errorCallback&&this._errorCallback(t.message),this.dispose()}},n._AssignIndices=function(e){if(e)for(var t=0;t<e.length;t++)e[t].index=t},n._GetProperty=function(e,t){return e&&void 0!=t&&e[t]?e[t]:null},n._GetTextureWrapMode=function(r,n){switch(n=void 0==n?t.ETextureWrapMode.REPEAT:n){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(r+": Invalid texture wrap mode "+n),e.Texture.WRAP_ADDRESSMODE}},n._GetTextureSamplingMode=function(r,n,o){if(n=void 0==n?t.ETextureMagFilter.LINEAR:n,o=void 0==o?t.ETextureMinFilter.LINEAR_MIPMAP_LINEAR:o,n===t.ETextureMagFilter.LINEAR)switch(o){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(r+": Invalid texture minification filter "+o),e.Texture.LINEAR_LINEAR_MIPLINEAR}else switch(n!==t.ETextureMagFilter.NEAREST&&e.Tools.Warn(r+": Invalid texture magnification filter "+n),o){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(r+": Invalid texture minification filter "+o),e.Texture.NEAREST_NEAREST_MIPNEAREST}},n._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(e+": Invalid type "+t)},n.prototype._compileMaterialAsync=function(e,t,r){var n=this;this._parent.useClipPlane?e.forceCompilation(t,(function(){e.forceCompilation(t,(function(){n._tryCatchOnError(r)}),{clipPlane:!0})})):e.forceCompilation(t,(function(){n._tryCatchOnError(r)}))},n.prototype._compileMaterialsAsync=function(t){if(!this._parent.compileMaterials||!this._gltf.materials)return void t();for(var r=this._getMeshes(),n=0,o=0,a=r;o<a.length;o++){var i=a[o];if(i.material instanceof e.MultiMaterial)for(var s=0,l=i.material.subMaterials;s<l.length;s++){var u=l[s];u&&n++}else i.material&&n++}if(0===n)return void t();for(var c=0,f=r;c<f.length;c++){var i=f[c];if(i.material instanceof e.MultiMaterial)for(var d=0,h=i.material.subMaterials;d<h.length;d++){var u=h[d];u&&this._compileMaterialAsync(u,i,(function(){0==--n&&t()}))}else i.material&&this._compileMaterialAsync(i.material,i,(function(){0==--n&&t()}))}},n.prototype._compileShadowGeneratorsAsync=function(e){var t=this;if(!this._parent.compileShadowGenerators)return void e();for(var r=this._babylonScene.lights,n=0,o=0,a=r;o<a.length;o++){var i=a[o],s=i.getShadowGenerator();s&&n++}if(0===n)return void e();for(var l=0,u=r;l<u.length;l++){var i=u[l],s=i.getShadowGenerator();s&&s.forceCompilation((function(){0==--n&&t._tryCatchOnError(e)}))}},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(e){var t=(function(){function e(){}return e.IsBase64=function(e){return!(e.length<5)&&"data:"===e.substr(0,5)},e.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},e.ValidateUri=function(e){return-1===e.indexOf("..")},e})();e.GLTFUtils=t})(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,r){var n=this;if(!t.extensions)return!1;var o=t.extensions[this.name];return!!o&&(t.extensions[this.name]=void 0,r(e+"extensions/"+this.name,o,(function(){t.extensions[n.name]=o})),!0)},e.TraverseNode=function(e,t,r,n,o){return this._ApplyExtensions((function(a){return a._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,o=r;n<o.length;n++){var a=o[n];if(a.enabled&&t(a))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(){var e=null!==r&&r.apply(this,arguments)||this;return e.Delay=250,e}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,a){return this._loadExtension(r,n,(function(r,i,s){for(var l=i.ids.length-1;l>=0;l--){var u=t.GLTFLoader._GetProperty(e._gltf.nodes,i.ids[l]);if(!u)throw new Error(r+": Failed to find node "+i.ids[l]);e._traverseNode(r,u,o,a)}e._traverseNode(r,n,o,a),s()}))},n.prototype._loadNode=function(e,r,n){var o=this;return this._loadExtension(r,n,(function(r,a,i){for(var s=[n],l=0,u=a.ids;l<u.length;l++){var c=u[l],f=t.GLTFLoader._GetProperty(e._gltf.nodes,c);if(!f)throw new Error(r+": Failed to find node "+c);s.push(f)}e._addLoaderPendingData(n),o._loadNodeLOD(e,r,s,s.length-1,(function(){e._removeLoaderPendingData(n),i()}))}))},n.prototype._loadNodeLOD=function(e,t,r,n,o){var a=this;e._whenAction((function(){e._loadNode(t,r[n])}),(function(){if(n!==r.length-1){r[n+1].babylonMesh.setEnabled(!1)}if(0===n)return void o();setTimeout((function(){e._tryCatchOnError((function(){a._loadNodeLOD(e,t,r,n-1,o)}))}),a.Delay)}))},n.prototype._loadMaterial=function(e,r,n,o){var a=this;return this._loadExtension(r,n,(function(r,i,s){for(var l=[n],u=0,c=i.ids;u<c.length;u++){var f=c[u],d=t.GLTFLoader._GetProperty(e._gltf.materials,f);if(!d)throw new Error(r+": Failed to find material "+f);l.push(d)}e._addLoaderPendingData(n),a._loadMaterialLOD(e,r,l,l.length-1,o,(function(){e._removeLoaderPendingData(n),s()}))}))},n.prototype._loadMaterialLOD=function(t,r,n,o,a,i){var s=this;t._loadMaterial(r,n[o],(function(l,u){o===n.length-1?(a(l,u),t._executeWhenRenderReady((function(){s._loadMaterialLOD(t,r,n,o-1,a,i)}))):e.BaseTexture.WhenAllReady(l.getActiveTextures(),(function(){a(l,u),0===o?i():setTimeout((function(){t._tryCatchOnError((function(){s._loadMaterialLOD(t,r,n,o-1,a,i)}))}),s.Delay)}))}))},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(t,r,(function(t,a,i){e._createPbrMaterial(r),e._loadMaterialBaseProperties(t,r),o._loadSpecularGlossinessProperties(e,t,r,a),n(r.babylonMaterial,!0),i()}))},n.prototype._loadSpecularGlossinessProperties=function(r,n,o,a){var i=o.babylonMaterial;if(i.albedoColor=a.diffuseFactor?e.Color3.FromArray(a.diffuseFactor):new e.Color3(1,1,1),i.reflectivityColor=a.specularFactor?e.Color3.FromArray(a.specularFactor):new e.Color3(1,1,1),i.microSurface=null==a.glossinessFactor?1:a.glossinessFactor,a.diffuseTexture){var s=t.GLTFLoader._GetProperty(r._gltf.textures,a.diffuseTexture.index);if(!s)throw new Error(n+": Failed to find diffuse texture "+a.diffuseTexture.index);i.albedoTexture=r._loadTexture("textures["+s.index+"]",s,a.diffuseTexture.texCoord)}if(a.specularGlossinessTexture){var s=t.GLTFLoader._GetProperty(r._gltf.textures,a.specularGlossinessTexture.index);if(!s)throw new Error(n+": Failed to find diffuse texture "+a.specularGlossinessTexture.index);i.reflectivityTexture=r._loadTexture("textures["+s.index+"]",s,a.specularGlossinessTexture.texCoord),i.reflectivityTexture.hasAlpha=!0,i.useMicroSurfaceFromReflectivityMapAlpha=!0}r._loadMaterialAlphaProperties(n,o,a.diffuseFactor)},n})(t.GLTFLoaderExtension);r.KHRMaterialsPbrSpecularGlossiness=n,t.GLTFLoader.RegisterExtension(new n)})(t.Extensions||(t.Extensions={}))})(e.GLTF2||(e.GLTF2={}))})(BABYLON||(BABYLON={}));