!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t(require("babylonjs")):"function"==typeof define&&define.amd?define("babylonjs-serializers",["babylonjs"],t):"object"==typeof exports?exports["babylonjs-serializers"]=t(require("babylonjs")):e.SERIALIZERS=t(e.BABYLON)}("undefined"!=typeof self?self:"undefined"!=typeof global?global:this,(function(e){return function(e){var t={};function r(n){if(t[n])return t[n].exports;var a=t[n]={i:n,l:!1,exports:{}};return e[n].call(a.exports,a,a.exports,r),a.l=!0,a.exports}return r.m=e,r.c=t,r.d=function(e,t,n){r.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:n})},r.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},r.t=function(e,t){if(1&t&&(e=r(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var n=Object.create(null);if(r.r(n),Object.defineProperty(n,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var a in e)r.d(n,a,function(t){return e[t]}.bind(null,a));return n},r.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return r.d(t,"a",t),t},r.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},r.p="",r(r.s=16)}([function(t,r){t.exports=e},function(e,t,r){"use strict";r.d(t,"a",(function(){return a}));var n=r(0),a=function(){function e(){}return e._CreateBufferView=function(e,t,r,n,a){var o={buffer:e,byteLength:r};return t&&(o.byteOffset=t),a&&(o.name=a),n&&(o.byteStride=n),o},e._CreateAccessor=function(e,t,r,n,a,o,i,s){var u={name:t,bufferView:e,componentType:n,count:a,type:r};return null!=i&&(u.min=i),null!=s&&(u.max=s),null!=o&&(u.byteOffset=o),u},e._CalculateMinMaxPositions=function(t,r,a,o){var i,s,u,l=[1/0,1/0,1/0],c=[-1/0,-1/0,-1/0];if(a)for(var f=r,h=r+a;f<h;++f){i=3*f,s=n.Vector3.FromArray(t,i),o&&e._GetRightHandedPositionVector3FromRef(s),u=s.asArray();for(var p=0;p<3;++p){var d=u[p];d<l[p]&&(l[p]=d),d>c[p]&&(c[p]=d),++i}}return{min:l,max:c}},e._GetRightHandedPositionVector3=function(e){return new n.Vector3(e.x,e.y,-e.z)},e._GetRightHandedPositionVector3FromRef=function(e){e.z*=-1},e._GetRightHandedPositionArray3FromRef=function(e){e[2]*=-1},e._GetRightHandedNormalVector3=function(e){return new n.Vector3(e.x,e.y,-e.z)},e._GetRightHandedNormalVector3FromRef=function(e){e.z*=-1},e._GetRightHandedNormalArray3FromRef=function(e){e[2]*=-1},e._GetRightHandedVector4FromRef=function(e){e.z*=-1,e.w*=-1},e._GetRightHandedArray4FromRef=function(e){e[2]*=-1,e[3]*=-1},e._GetRightHandedQuaternionFromRef=function(e){e.x*=-1,e.y*=-1},e._GetRightHandedQuaternionArrayFromRef=function(e){e[0]*=-1,e[1]*=-1},e._NormalizeTangentFromRef=function(e){var t=Math.sqrt(e.x*e.x+e.y*e.y+e.z*e.z);t>0&&(e.x/=t,e.y/=t,e.z/=t)},e._GetRightHandedMatrixFromRef=function(e){var t=e.m;n.Matrix.FromValuesToRef(t[0],t[1],-t[2],t[3],t[4],t[5],-t[6],t[7],-t[8],t[9],t[10],t[11],t[12],t[13],t[14],t[15],e)},e._GetDataAccessorElementCount=function(e){switch(e){case"MAT2":return 4;case"MAT3":return 9;case"MAT4":return 16;case"SCALAR":return 1;case"VEC2":return 2;case"VEC3":return 3;case"VEC4":return 4}},e}()},function(e,t,r){"use strict";r.d(t,"b",(function(){return u})),r.d(t,"a",(function(){return l}));Object.create;Object.create;var n=r(0),a=r(10),o=r(1),i=r(3),s=r(7),u=function(){function e(e,t){this._includeCoordinateSystemConversionNodes=!1,this._extensions={},this._glTF={asset:{generator:"BabylonJS",version:"2.0"}},this._babylonScene=e,this._bufferViews=[],this._accessors=[],this._meshes=[],this._scenes=[],this._nodes=[],this._images=[],this._materials=[],this._materialMap=[],this._textures=[],this._samplers=[],this._skins=[],this._animations=[],this._imageData={},this._orderedImageData=[],this._options=t||{},this._animationSampleRate=t&&t.animationSampleRate?t.animationSampleRate:1/60,this._includeCoordinateSystemConversionNodes=!(!t||!t.includeCoordinateSystemConversionNodes),this._glTFMaterialExporter=new a.a(this),this._loadExtensions()}return e.prototype._applyExtension=function(e,t,r,n){var a=this;if(r>=t.length)return Promise.resolve(e);var o=n(t[r],e);return o?o.then((function(e){return a._applyExtension(e,t,r+1,n)})):this._applyExtension(e,t,r+1,n)},e.prototype._applyExtensions=function(t,r){for(var n=[],a=0,o=e._ExtensionNames;a<o.length;a++){var i=o[a];n.push(this._extensions[i])}return this._applyExtension(t,n,0,r)},e.prototype._extensionsPreExportTextureAsync=function(e,t,r){return this._applyExtensions(t,(function(t,n){return t.preExportTextureAsync&&t.preExportTextureAsync(e,n,r)}))},e.prototype._extensionsPostExportMeshPrimitiveAsync=function(e,t,r,n){return this._applyExtensions(t,(function(t,a){return t.postExportMeshPrimitiveAsync&&t.postExportMeshPrimitiveAsync(e,a,r,n)}))},e.prototype._extensionsPostExportNodeAsync=function(e,t,r,n){return this._applyExtensions(t,(function(t,a){return t.postExportNodeAsync&&t.postExportNodeAsync(e,a,r,n)}))},e.prototype._extensionsPostExportMaterialAsync=function(e,t,r){return this._applyExtensions(t,(function(t,n){return t.postExportMaterialAsync&&t.postExportMaterialAsync(e,n,r)}))},e.prototype._extensionsPostExportMaterialAdditionalTextures=function(t,r,n){for(var a=[],o=0,i=e._ExtensionNames;o<i.length;o++){var s=i[o],u=this._extensions[s];u.postExportMaterialAdditionalTextures&&a.push.apply(a,u.postExportMaterialAdditionalTextures(t,r,n))}return a},e.prototype._extensionsPostExportTextures=function(t,r,n){for(var a=0,o=e._ExtensionNames;a<o.length;a++){var i=o[a],s=this._extensions[i];s.postExportTexture&&s.postExportTexture(t,r,n)}},e.prototype._forEachExtensions=function(t){for(var r=0,n=e._ExtensionNames;r<n.length;r++){var a=n[r],o=this._extensions[a];o.enabled&&t(o)}},e.prototype._extensionsOnExporting=function(){var e=this;this._forEachExtensions((function(t){t.wasUsed&&(null==e._glTF.extensionsUsed&&(e._glTF.extensionsUsed=[]),-1===e._glTF.extensionsUsed.indexOf(t.name)&&e._glTF.extensionsUsed.push(t.name),t.required&&(null==e._glTF.extensionsRequired&&(e._glTF.extensionsRequired=[]),-1===e._glTF.extensionsRequired.indexOf(t.name)&&e._glTF.extensionsRequired.push(t.name)),null==e._glTF.extensions&&(e._glTF.extensions={}),t.onExporting&&t.onExporting())}))},e.prototype._loadExtensions=function(){for(var t=0,r=e._ExtensionNames;t<r.length;t++){var n=r[t],a=e._ExtensionFactories[n](this);this._extensions[n]=a}},e.prototype.dispose=function(){for(var e in this._extensions){this._extensions[e].dispose()}},e.RegisterExtension=function(t,r){e.UnregisterExtension(t)&&n.Tools.Warn("Extension with the name "+t+" already exists"),e._ExtensionFactories[t]=r,e._ExtensionNames.push(t)},e.UnregisterExtension=function(t){if(!e._ExtensionFactories[t])return!1;delete e._ExtensionFactories[t];var r=e._ExtensionNames.indexOf(t);return-1!==r&&e._ExtensionNames.splice(r,1),!0},e.prototype._getLocalEngine=function(){if(!this._localEngine){var e=document.createElement("canvas");e.id="WriteCanvas",e.width=2048,e.height=2048,this._localEngine=new n.Engine(e,!0,{premultipliedAlpha:n.Tools.IsSafari(),preserveDrawingBuffer:!0}),this._localEngine.setViewport(new n.Viewport(0,0,1,1))}return this._localEngine},e.prototype.reorderIndicesBasedOnPrimitiveMode=function(e,t,r,a,o){switch(t){case n.Material.TriangleFillMode:a||(a=0);for(var i=e.indexStart,s=e.indexStart+e.indexCount;i<s;i+=3){var u=a+4*i,l=o.getUInt32(u+4),c=o.getUInt32(u+8);o.setUInt32(c,u+4),o.setUInt32(l,u+8)}break;case n.Material.TriangleFanDrawMode:i=e.indexStart+e.indexCount-1;for(var f=e.indexStart;i>=f;--i)o.setUInt32(r[i],a),a+=4;break;case n.Material.TriangleStripDrawMode:e.indexCount>=3&&(o.setUInt32(r[e.indexStart+2],a+4),o.setUInt32(r[e.indexStart+1],a+8))}},e.prototype.reorderVertexAttributeDataBasedOnPrimitiveMode=function(e,t,r,a,o,i,s,u){if(u&&r===n.Material.ClockWiseSideOrientation)switch(t){case n.Material.TriangleFillMode:this.reorderTriangleFillMode(e,t,r,a,o,i,s,u);break;case n.Material.TriangleStripDrawMode:this.reorderTriangleStripDrawMode(e,t,r,a,o,i,s,u);break;case n.Material.TriangleFanDrawMode:this.reorderTriangleFanMode(e,t,r,a,o,i,s,u)}},e.prototype.reorderTriangleFillMode=function(e,t,r,a,o,i,s,u){var l=this.getVertexBufferFromMesh(a,e.getMesh());if(l){var c=l.byteStride/n.VertexBuffer.GetTypeByteLength(l.type);if(e.verticesCount%3!=0)n.Tools.Error("The submesh vertices for the triangle fill mode is not divisible by 3!");else{var f=[],h=0;switch(a){case n.VertexBuffer.PositionKind:case n.VertexBuffer.NormalKind:for(var p=e.verticesStart;p<e.verticesStart+e.verticesCount;p+=3)h=p*c,f.push(n.Vector3.FromArray(o,h)),f.push(n.Vector3.FromArray(o,h+2*c)),f.push(n.Vector3.FromArray(o,h+c));break;case n.VertexBuffer.TangentKind:for(p=e.verticesStart;p<e.verticesStart+e.verticesCount;p+=3)h=p*c,f.push(n.Vector4.FromArray(o,h)),f.push(n.Vector4.FromArray(o,h+2*c)),f.push(n.Vector4.FromArray(o,h+c));break;case n.VertexBuffer.ColorKind:var d=l.getSize();for(p=e.verticesStart;p<e.verticesStart+e.verticesCount;p+=d)h=p*c,4===d?(f.push(n.Vector4.FromArray(o,h)),f.push(n.Vector4.FromArray(o,h+2*c)),f.push(n.Vector4.FromArray(o,h+c))):(f.push(n.Vector3.FromArray(o,h)),f.push(n.Vector3.FromArray(o,h+2*c)),f.push(n.Vector3.FromArray(o,h+c)));break;case n.VertexBuffer.UVKind:case n.VertexBuffer.UV2Kind:for(p=e.verticesStart;p<e.verticesStart+e.verticesCount;p+=3)h=p*c,f.push(n.Vector2.FromArray(o,h)),f.push(n.Vector2.FromArray(o,h+2*c)),f.push(n.Vector2.FromArray(o,h+c));break;default:n.Tools.Error("Unsupported Vertex Buffer type: "+a)}this.writeVertexAttributeData(f,i,a,o,s,u)}}else n.Tools.Warn("reorderTriangleFillMode: Vertex Buffer Kind "+a+" not present!")},e.prototype.reorderTriangleStripDrawMode=function(e,t,r,a,o,i,s,u){var l=this.getVertexBufferFromMesh(a,e.getMesh());if(l){var c=l.byteStride/n.VertexBuffer.GetTypeByteLength(l.type),f=[],h=0;switch(a){case n.VertexBuffer.PositionKind:case n.VertexBuffer.NormalKind:h=e.verticesStart,f.push(n.Vector3.FromArray(o,h+2*c)),f.push(n.Vector3.FromArray(o,h+c));break;case n.VertexBuffer.TangentKind:for(var p=e.verticesStart+e.verticesCount-1;p>=e.verticesStart;--p)h=p*c,f.push(n.Vector4.FromArray(o,h));break;case n.VertexBuffer.ColorKind:for(p=e.verticesStart+e.verticesCount-1;p>=e.verticesStart;--p)h=p*c,4===l.getSize()?f.push(n.Vector4.FromArray(o,h)):f.push(n.Vector3.FromArray(o,h));break;case n.VertexBuffer.UVKind:case n.VertexBuffer.UV2Kind:for(p=e.verticesStart+e.verticesCount-1;p>=e.verticesStart;--p)h=p*c,f.push(n.Vector2.FromArray(o,h));break;default:n.Tools.Error("Unsupported Vertex Buffer type: "+a)}this.writeVertexAttributeData(f,i+12,a,o,s,u)}else n.Tools.Warn("reorderTriangleStripDrawMode: Vertex buffer kind "+a+" not present!")},e.prototype.reorderTriangleFanMode=function(e,t,r,a,o,i,s,u){var l=this.getVertexBufferFromMesh(a,e.getMesh());if(l){var c=l.byteStride/n.VertexBuffer.GetTypeByteLength(l.type),f=[],h=0;switch(a){case n.VertexBuffer.PositionKind:case n.VertexBuffer.NormalKind:for(var p=e.verticesStart+e.verticesCount-1;p>=e.verticesStart;--p)h=p*c,f.push(n.Vector3.FromArray(o,h));break;case n.VertexBuffer.TangentKind:for(p=e.verticesStart+e.verticesCount-1;p>=e.verticesStart;--p)h=p*c,f.push(n.Vector4.FromArray(o,h));break;case n.VertexBuffer.ColorKind:for(p=e.verticesStart+e.verticesCount-1;p>=e.verticesStart;--p)h=p*c,f.push(n.Vector4.FromArray(o,h)),4===l.getSize()?f.push(n.Vector4.FromArray(o,h)):f.push(n.Vector3.FromArray(o,h));break;case n.VertexBuffer.UVKind:case n.VertexBuffer.UV2Kind:for(p=e.verticesStart+e.verticesCount-1;p>=e.verticesStart;--p)h=p*c,f.push(n.Vector2.FromArray(o,h));break;default:n.Tools.Error("Unsupported Vertex Buffer type: "+a)}this.writeVertexAttributeData(f,i,a,o,s,u)}else n.Tools.Warn("reorderTriangleFanMode: Vertex buffer kind "+a+" not present!")},e.prototype.writeVertexAttributeData=function(e,t,r,a,i,s){for(var u=0,l=e;u<l.length;u++){var c=l[u];!s||r===n.VertexBuffer.ColorKind||c instanceof n.Vector2||(c instanceof n.Vector3?r===n.VertexBuffer.NormalKind?o.a._GetRightHandedNormalVector3FromRef(c):r===n.VertexBuffer.PositionKind?o.a._GetRightHandedPositionVector3FromRef(c):n.Tools.Error("Unsupported vertex attribute kind!"):o.a._GetRightHandedVector4FromRef(c)),r===n.VertexBuffer.NormalKind?c.normalize():r===n.VertexBuffer.TangentKind&&c instanceof n.Vector4&&o.a._NormalizeTangentFromRef(c);for(var f=0,h=c.asArray();f<h.length;f++){var p=h[f];i.setFloat32(p,t),t+=4}}},e.prototype.writeAttributeData=function(e,t,r,a,i,s,u){var l,c,f=[];switch(e){case n.VertexBuffer.PositionKind:for(var h=0,p=r.length/a;h<p;++h){l=h*a;var d=n.Vector3.FromArray(r,l);s&&o.a._GetRightHandedPositionVector3FromRef(d),f.push(d.asArray())}break;case n.VertexBuffer.NormalKind:h=0;for(var m=r.length/a;h<m;++h){l=h*a;d=n.Vector3.FromArray(r,l);s&&o.a._GetRightHandedNormalVector3FromRef(d),d.normalize(),f.push(d.asArray())}break;case n.VertexBuffer.TangentKind:h=0;for(var g=r.length/a;h<g;++h){l=h*a;d=n.Vector4.FromArray(r,l);s&&o.a._GetRightHandedVector4FromRef(d),o.a._NormalizeTangentFromRef(d),f.push(d.asArray())}break;case n.VertexBuffer.ColorKind:for(var _=u.material,x=!_||_ instanceof n.StandardMaterial,y=(d=3===a?new n.Color3:new n.Color4,h=0,r.length/a);h<y;++h)l=h*a,3===a?(n.Color3.FromArrayToRef(r,l,d),x&&d.toLinearSpaceToRef(d)):(n.Color4.FromArrayToRef(r,l,d),x&&d.toLinearSpaceToRef(d)),f.push(d.asArray());break;case n.VertexBuffer.UVKind:case n.VertexBuffer.UV2Kind:h=0;for(var T=r.length/a;h<T;++h)l=h*a,f.push([r[l],r[l+1]]);break;case n.VertexBuffer.MatricesIndicesKind:case n.VertexBuffer.MatricesIndicesExtraKind:h=0;for(var v=r.length/a;h<v;++h){l=h*a;d=n.Vector4.FromArray(r,l);f.push(d.asArray())}break;case n.VertexBuffer.MatricesWeightsKind:case n.VertexBuffer.MatricesWeightsExtraKind:h=0;for(var b=r.length/a;h<b;++h){l=h*a;d=n.Vector4.FromArray(r,l);f.push(d.asArray())}break;default:n.Tools.Warn("Unsupported Vertex Buffer Type: "+e),f=[]}switch(t){case 5121:c=i.setUInt8.bind(i);break;case 5123:c=i.setUInt16.bind(i);break;case 5125:c=i.setUInt32.bind(i);case 5126:c=i.setFloat32.bind(i);break;default:return void n.Tools.Warn("Unsupported Attribute Component kind: "+t)}for(var A=0,F=f;A<F.length;A++)for(var E=0,M=F[A];E<M.length;E++){c(M[E])}},e.prototype.writeMorphTargetAttributeData=function(e,t,r,a,i,s,u,l,c,f){var h,p,d=[],m=new n.Vector3,g=new n.Vector4(0,0,0,0);switch(e){case n.VertexBuffer.PositionKind:for(var _=r.verticesStart;_<r.verticesCount;++_){h=r.indexStart+_*u;var x=n.Vector3.FromArray(i,h);m=(y=n.Vector3.FromArray(s,h)).subtractToRef(x,m),c&&o.a._GetRightHandedPositionVector3FromRef(m),f&&(f.min.copyFromFloats(Math.min(m.x,f.min.x),Math.min(m.y,f.min.y),Math.min(m.z,f.min.z)),f.max.copyFromFloats(Math.max(m.x,f.max.x),Math.max(m.y,f.max.y),Math.max(m.z,f.max.z))),d.push(m.asArray())}break;case n.VertexBuffer.NormalKind:for(_=r.verticesStart;_<r.verticesCount;++_){h=r.indexStart+_*u,(x=n.Vector3.FromArray(i,h)).normalize(),(y=n.Vector3.FromArray(s,h)).normalize(),m=y.subtractToRef(x,m),c&&o.a._GetRightHandedNormalVector3FromRef(m),d.push(m.asArray())}break;case n.VertexBuffer.TangentKind:for(_=r.verticesStart;_<r.verticesCount;++_){h=r.indexStart+_*(u+1);x=n.Vector4.FromArray(i,h);o.a._NormalizeTangentFromRef(x);var y=n.Vector4.FromArray(s,h);o.a._NormalizeTangentFromRef(y),g=y.subtractToRef(x,g),c&&o.a._GetRightHandedVector4FromRef(g),d.push([g.x,g.y,g.z])}break;default:n.Tools.Warn("Unsupported Vertex Buffer Type: "+e),d=[]}switch(t){case 5121:p=l.setUInt8.bind(l);break;case 5123:p=l.setUInt16.bind(l);break;case 5125:p=l.setUInt32.bind(l);case 5126:p=l.setFloat32.bind(l);break;default:return void n.Tools.Warn("Unsupported Attribute Component kind: "+t)}for(var T=0,v=d;T<v.length;T++)for(var b=0,A=v[T];b<A.length;b++){p(A[b])}},e.prototype.generateJSON=function(e,t,r){var n,a,i,s=this,u={byteLength:this._totalByteLength},l=this._totalByteLength;return u.byteLength&&(this._glTF.buffers=[u]),this._nodes&&this._nodes.length&&(this._glTF.nodes=this._nodes),this._meshes&&this._meshes.length&&(this._glTF.meshes=this._meshes),this._scenes&&this._scenes.length&&(this._glTF.scenes=this._scenes,this._glTF.scene=0),this._bufferViews&&this._bufferViews.length&&(this._glTF.bufferViews=this._bufferViews),this._accessors&&this._accessors.length&&(this._glTF.accessors=this._accessors),this._animations&&this._animations.length&&(this._glTF.animations=this._animations),this._materials&&this._materials.length&&(this._glTF.materials=this._materials),this._textures&&this._textures.length&&(this._glTF.textures=this._textures),this._samplers&&this._samplers.length&&(this._glTF.samplers=this._samplers),this._skins&&this._skins.length&&(this._glTF.skins=this._skins),this._images&&this._images.length&&(e?(this._glTF.images=[],this._images.forEach((function(e){e.uri&&(a=s._imageData[e.uri],s._orderedImageData.push(a),n=e.uri.split(".")[0]+" image",i=o.a._CreateBufferView(0,l,a.data.length,void 0,n),l+=a.data.buffer.byteLength,s._bufferViews.push(i),e.bufferView=s._bufferViews.length-1,e.name=n,e.mimeType=a.mimeType,e.uri=void 0,s._glTF.images||(s._glTF.images=[]),s._glTF.images.push(e))})),u.byteLength=l):this._glTF.images=this._images),e||(u.uri=t+".bin"),r?JSON.stringify(this._glTF,null,2):JSON.stringify(this._glTF)},e.prototype._generateGLTFAsync=function(e,t){var r=this;return void 0===t&&(t=!0),this._generateBinaryAsync().then((function(n){r._extensionsOnExporting();var a=r.generateJSON(!1,e,!0),o=new Blob([n],{type:"application/octet-stream"}),s=e+".gltf",u=e+".bin",l=new i.GLTFData;if(l.glTFFiles[s]=a,l.glTFFiles[u]=o,r._imageData)for(var c in r._imageData)l.glTFFiles[c]=new Blob([r._imageData[c].data],{type:r._imageData[c].mimeType});return t&&r.dispose(),l}))},e.prototype._generateBinaryAsync=function(){var e=this,t=new l(4);return this.createSceneAsync(this._babylonScene,t).then((function(){return e._localEngine&&e._localEngine.dispose(),t.getArrayBuffer()}))},e.prototype._getPadding=function(e){var t=e%4;return 0===t?t:4-t},e.prototype._generateGLBAsync=function(e,t){var r=this;return void 0===t&&(t=!0),this._generateBinaryAsync().then((function(n){r._extensionsOnExporting();for(var a=r.generateJSON(!0),o=e+".glb",s=a.length,u=0,l=0;l<r._orderedImageData.length;++l)u+=r._orderedImageData[l].data.byteLength;var c=r._getPadding(s),f=r._getPadding(n.byteLength),h=r._getPadding(u),p=28+s+c+n.byteLength+f+u+h,d=new ArrayBuffer(12),m=new DataView(d);m.setUint32(0,1179937895,!0),m.setUint32(4,2,!0),m.setUint32(8,p,!0);var g=new ArrayBuffer(8+s+c),_=new DataView(g);_.setUint32(0,s+c,!0),_.setUint32(4,1313821514,!0);var x=new Uint8Array(g,8);for(l=0;l<s;++l)x[l]=a.charCodeAt(l);var y=new Uint8Array(g,8+s);for(l=0;l<c;++l)y[l]=32;var T=new ArrayBuffer(8),v=new DataView(T);v.setUint32(0,n.byteLength+u+h,!0),v.setUint32(4,5130562,!0);var b=new ArrayBuffer(f),A=new Uint8Array(b);for(l=0;l<f;++l)A[l]=0;var F=new ArrayBuffer(h),E=new Uint8Array(F);for(l=0;l<h;++l)E[l]=0;var M=[d,g,T,n];for(l=0;l<r._orderedImageData.length;++l)M.push(r._orderedImageData[l].data.buffer);M.push(b),M.push(F);var R=new Blob(M,{type:"application/octet-stream"}),V=new i.GLTFData;return V.glTFFiles[o]=R,null!=r._localEngine&&r._localEngine.dispose(),t&&r.dispose(),V}))},e.prototype.setNodeTransformation=function(e,t,r){t.getPivotPoint().equalsToFloats(0,0,0)||n.Tools.Warn("Pivot points are not supported in the glTF serializer"),t.position.equalsToFloats(0,0,0)||(e.translation=r?o.a._GetRightHandedPositionVector3(t.position).asArray():t.position.asArray()),t.scaling.equalsToFloats(1,1,1)||(e.scale=t.scaling.asArray());var a=n.Quaternion.RotationYawPitchRoll(t.rotation.y,t.rotation.x,t.rotation.z);t.rotationQuaternion&&a.multiplyInPlace(t.rotationQuaternion),0===a.x&&0===a.y&&0===a.z&&1===a.w||(r&&o.a._GetRightHandedQuaternionFromRef(a),e.rotation=a.normalize().asArray())},e.prototype.getVertexBufferFromMesh=function(e,t){if(t.isVerticesDataPresent(e)){var r=t.getVertexBuffer(e);if(r)return r}return null},e.prototype.createBufferViewKind=function(e,t,r,a,i,s){var u=r instanceof n.Mesh?r:r instanceof n.InstancedMesh?r.sourceMesh:null;if(u){var l=u.getVertexBuffer(e),c=u.getVerticesData(e);if(l&&c){var f=n.VertexBuffer.GetTypeByteLength(t),h=c.length*f,p=o.a._CreateBufferView(0,a.getByteOffset(),h,i,e+" - "+u.name);this._bufferViews.push(p),this.writeAttributeData(e,t,c,i/f,a,s,r)}}},e.prototype.setMorphTargetAttributes=function(e,t,r,a,i){if(r){t.targets||(t.targets=[]);var s={};if(r.hasNormals){var u=e.getMesh().getVerticesData(n.VertexBuffer.NormalKind),l=r.getNormals(),c=(_=e.verticesCount)*(x=12),f=o.a._CreateBufferView(0,a.getByteOffset(),c,x,r.name+"_NORMAL");this._bufferViews.push(f);var h=this._bufferViews.length-1,p=o.a._CreateAccessor(h,r.name+" - NORMAL","VEC3",5126,_,0,null,null);this._accessors.push(p),s.NORMAL=this._accessors.length-1,this.writeMorphTargetAttributeData(n.VertexBuffer.NormalKind,5126,e,r,u,l,x/4,a,i)}if(r.hasPositions){var d=e.getMesh().getVerticesData(n.VertexBuffer.PositionKind),m=r.getPositions();c=(_=e.verticesCount)*(x=12),f=o.a._CreateBufferView(0,a.getByteOffset(),c,x,r.name+"_POSITION");this._bufferViews.push(f);h=this._bufferViews.length-1;var g={min:new n.Vector3(1/0,1/0,1/0),max:new n.Vector3(-1/0,-1/0,-1/0)};p=o.a._CreateAccessor(h,r.name+" - POSITION","VEC3",5126,_,0,null,null);this._accessors.push(p),s.POSITION=this._accessors.length-1,this.writeMorphTargetAttributeData(n.VertexBuffer.PositionKind,5126,e,r,d,m,x/4,a,i,g),p.min=g.min.asArray(),p.max=g.max.asArray()}if(r.hasTangents){var _,x,y=e.getMesh().getVerticesData(n.VertexBuffer.TangentKind),T=r.getTangents();c=(_=e.verticesCount)*(x=12),f=o.a._CreateBufferView(0,a.getByteOffset(),c,x,r.name+"_NORMAL");this._bufferViews.push(f);h=this._bufferViews.length-1,p=o.a._CreateAccessor(h,r.name+" - TANGENT","VEC3",5126,_,0,null,null);this._accessors.push(p),s.TANGENT=this._accessors.length-1,this.writeMorphTargetAttributeData(n.VertexBuffer.TangentKind,5126,e,r,y,T,x/4,a,i)}t.targets.push(s)}},e.prototype.getMeshPrimitiveMode=function(e){return e instanceof n.LinesMesh?n.Material.LineListDrawMode:e.material?e.material.fillMode:n.Material.TriangleFillMode},e.prototype.setPrimitiveMode=function(e,t){switch(t){case n.Material.TriangleFillMode:break;case n.Material.TriangleStripDrawMode:e.mode=5;break;case n.Material.TriangleFanDrawMode:e.mode=6;break;case n.Material.PointListDrawMode:e.mode=0;case n.Material.PointFillMode:e.mode=0;break;case n.Material.LineLoopDrawMode:e.mode=2;break;case n.Material.LineListDrawMode:e.mode=1;break;case n.Material.LineStripDrawMode:e.mode=3}},e.prototype.setAttributeKind=function(e,t){switch(t){case n.VertexBuffer.PositionKind:e.attributes.POSITION=this._accessors.length-1;break;case n.VertexBuffer.NormalKind:e.attributes.NORMAL=this._accessors.length-1;break;case n.VertexBuffer.ColorKind:e.attributes.COLOR_0=this._accessors.length-1;break;case n.VertexBuffer.TangentKind:e.attributes.TANGENT=this._accessors.length-1;break;case n.VertexBuffer.UVKind:e.attributes.TEXCOORD_0=this._accessors.length-1;break;case n.VertexBuffer.UV2Kind:e.attributes.TEXCOORD_1=this._accessors.length-1;break;case n.VertexBuffer.MatricesIndicesKind:e.attributes.JOINTS_0=this._accessors.length-1;break;case n.VertexBuffer.MatricesIndicesExtraKind:e.attributes.JOINTS_1=this._accessors.length-1;break;case n.VertexBuffer.MatricesWeightsKind:e.attributes.WEIGHTS_0=this._accessors.length-1;break;case n.VertexBuffer.MatricesWeightsExtraKind:e.attributes.WEIGHTS_1=this._accessors.length-1;break;default:n.Tools.Warn("Unsupported Vertex Buffer Type: "+t)}},e.prototype.setPrimitiveAttributesAsync=function(e,t,r,a){var i,s,u,l=[],c=null;t instanceof n.Mesh?c=t:t instanceof n.InstancedMesh&&(c=t.sourceMesh);var f=[{kind:n.VertexBuffer.PositionKind,accessorType:"VEC3",accessorComponentType:5126,byteStride:12},{kind:n.VertexBuffer.NormalKind,accessorType:"VEC3",accessorComponentType:5126,byteStride:12},{kind:n.VertexBuffer.ColorKind,accessorType:"VEC4",accessorComponentType:5126,byteStride:16},{kind:n.VertexBuffer.TangentKind,accessorType:"VEC4",accessorComponentType:5126,byteStride:16},{kind:n.VertexBuffer.UVKind,accessorType:"VEC2",accessorComponentType:5126,byteStride:8},{kind:n.VertexBuffer.UV2Kind,accessorType:"VEC2",accessorComponentType:5126,byteStride:8},{kind:n.VertexBuffer.MatricesIndicesKind,accessorType:"VEC4",accessorComponentType:5123,byteStride:8},{kind:n.VertexBuffer.MatricesIndicesExtraKind,accessorType:"VEC4",accessorComponentType:5123,byteStride:8},{kind:n.VertexBuffer.MatricesWeightsKind,accessorType:"VEC4",accessorComponentType:5126,byteStride:16},{kind:n.VertexBuffer.MatricesWeightsExtraKind,accessorType:"VEC4",accessorComponentType:5126,byteStride:16}];if(c){for(var h=null,p=this.getMeshPrimitiveMode(c),d={},m=c.morphTargetManager,g=0,_=f;g<_.length;g++){var x=(W=_[g]).kind,y=W.accessorComponentType;if(c.isVerticesDataPresent(x)){var T=this.getVertexBufferFromMesh(x,c);W.byteStride=T?T.getSize()*n.VertexBuffer.GetTypeByteLength(W.accessorComponentType):4*n.VertexBuffer.DeduceStride(x),12===W.byteStride&&(W.accessorType="VEC3"),this.createBufferViewKind(x,y,t,r,W.byteStride,a),W.bufferViewIndex=this._bufferViews.length-1,d[x]=W.bufferViewIndex}}if(c.getTotalIndices()){var v=c.getIndices();if(v){var b=4*v.length;s=o.a._CreateBufferView(0,r.getByteOffset(),b,void 0,"Indices - "+c.name),this._bufferViews.push(s),h=this._bufferViews.length-1;for(var A=0,F=v.length;A<F;++A)r.setUInt32(v[A])}}if(c.subMeshes)for(var E=0,M=c.subMeshes;E<M.length;E++){var R=M[E],V=R.getMaterial()||c.getScene().defaultMaterial,w=null;if(V)if(c instanceof n.LinesMesh){var S={name:c.name+" material"};(!c.color.equals(n.Color3.White())||c.alpha<1)&&(S.pbrMetallicRoughness={baseColorFactor:c.color.asArray().concat([c.alpha])}),this._materials.push(S),w=this._materials.length-1}else if(V instanceof n.MultiMaterial){var C=V.subMaterials[R.materialIndex];C&&(V=C,w=this._materialMap[V.uniqueId])}else w=this._materialMap[V.uniqueId];var B=null!=w?this._materials[w]:null,I={attributes:{}};this.setPrimitiveMode(I,p);for(var P=0,L=f;P<L.length;P++){if((x=(W=L[P]).kind)!==n.VertexBuffer.UVKind&&x!==n.VertexBuffer.UV2Kind||!B||this._glTFMaterialExporter._hasTexturesPresent(B))if(z=c.getVerticesData(x))if(T=this.getVertexBufferFromMesh(x,c)){var N=T.getSize(),O=W.bufferViewIndex;if(null!=O){u={min:null,max:null},x==n.VertexBuffer.PositionKind&&(u=o.a._CalculateMinMaxPositions(z,0,z.length/N,a));var G=o.a._CreateAccessor(O,x+" - "+t.name,W.accessorType,W.accessorComponentType,z.length/N,0,u.min,u.max);this._accessors.push(G),this.setAttributeKind(I,x)}}}if(h){G=o.a._CreateAccessor(h,"indices - "+t.name,"SCALAR",5125,R.indexCount,4*R.indexStart,null,null);this._accessors.push(G),I.indices=this._accessors.length-1}if(null!=w&&Object.keys(I.attributes).length>0){var k=null!==c.overrideMaterialSideOrientation?c.overrideMaterialSideOrientation:V.sideOrientation;if(k==n.Material.ClockWiseSideOrientation&&this._babylonScene.useRightHandedSystem||k==n.Material.ClockWiseSideOrientation&&a&&c.overrideMaterialSideOrientation!==(null===(i=c.material)||void 0===i?void 0:i.sideOrientation)){var K=null!=h?this._bufferViews[h].byteOffset:null;null==K&&(K=0);var D=null;if(null!=h&&(D=c.getIndices()),D)this.reorderIndicesBasedOnPrimitiveMode(R,p,D,K,r);else for(var U=0,H=f;U<H.length;U++){var z,W=H[U];if(z=c.getVerticesData(W.kind)){var q=this._bufferViews[d[W.kind]].byteOffset;q||(q=0),this.reorderVertexAttributeDataBasedOnPrimitiveMode(R,p,k,W.kind,z,q,r,a)}}}I.material=w}if(m)for(var Q=void 0,j=0;j<m.numTargets;++j)Q=m.getTarget(j),this.setMorphTargetAttributes(R,I,Q,r,a);e.primitives.push(I),this._extensionsPostExportMeshPrimitiveAsync("postExport",I,R,r)&&l.push()}}return Promise.all(l).then((function(){}))},e.prototype.isBabylonCoordinateSystemConvertingNode=function(e){if(e instanceof n.TransformNode){if("__root__"!==e.name)return!1;for(var t=e.getWorldMatrix(),r=n.Matrix.Compose(this._convertToRightHandedSystem?new n.Vector3(-1,1,1):n.Vector3.One(),n.Quaternion.Identity(),n.Vector3.Zero()),a=t.multiply(r),o=n.Matrix.IdentityReadOnly,i=0;i<16;i++)if(Math.abs(a.m[i]-o.m[i])>n.Epsilon)return!1;return!(e instanceof n.Mesh&&null!==e.geometry||e instanceof n.InstancedMesh&&null!==e.sourceMesh.geometry)&&!this._includeCoordinateSystemConversionNodes}return!1},e.prototype.createSceneAsync=function(e,t){var r,a,o,i=this,s={nodes:[]},u=function(){for(var e=0,t=0,r=arguments.length;t<r;t++)e+=arguments[t].length;var n=Array(e),a=0;for(t=0;t<r;t++)for(var o=arguments[t],i=0,s=o.length;i<s;i++,a++)n[a]=o[i];return n}(e.transformNodes,e.meshes,e.lights),l=[];return this._convertToRightHandedSystem=!e.useRightHandedSystem,this._convertToRightHandedSystemMap={},e.rootNodes.forEach((function(e){i._convertToRightHandedSystemMap[e.uniqueId]=i._convertToRightHandedSystem,e.getDescendants(!1).forEach((function(e){i._convertToRightHandedSystemMap[e.uniqueId]=i._convertToRightHandedSystem}))})),e.rootNodes.forEach((function(e){if(i.isBabylonCoordinateSystemConvertingNode(e)){l.push(e);var t=u.indexOf(e);-1!==t&&u.splice(t,1),e.getDescendants(!1).forEach((function(e){i._convertToRightHandedSystemMap[e.uniqueId]=!1}))}})),this._glTFMaterialExporter._convertMaterialsToGLTFAsync(e.materials,"image/png",!0).then((function(){return i.createNodeMapAndAnimationsAsync(e,u,t).then((function(c){return i.createSkinsAsync(e,c,t).then((function(e){if(i._nodeMap=c,i._totalByteLength=t.getByteOffset(),null==i._totalByteLength)throw new Error("undefined byte length!");for(var f=0,h=u;f<h.length;f++){var p=h[f];if(void 0!==(r=i._nodeMap[p.uniqueId])){if(a=i._nodes[r],p.metadata&&(i._options.metadataSelector?a.extras=i._options.metadataSelector(p.metadata):p.metadata.gltf&&(a.extras=p.metadata.gltf.extras)),!p.parent||-1!==l.indexOf(p.parent))if(i._options.shouldExportNode&&!i._options.shouldExportNode(p))n.Tools.Log("Omitting "+p.name+" from scene.");else i._convertToRightHandedSystemMap[p.uniqueId]&&(a.translation&&(a.translation[2]*=-1,a.translation[0]*=-1),a.rotation=a.rotation?n.Quaternion.FromArray([0,1,0,0]).multiply(n.Quaternion.FromArray(a.rotation)).asArray():n.Quaternion.FromArray([0,1,0,0]).asArray()),s.nodes.push(r);if(p instanceof n.Mesh){var d=p;d.skeleton&&(a.skin=e[d.skeleton.uniqueId])}if(o=p.getDescendants(!0),!a.children&&o&&o.length){for(var m=[],g=0,_=o;g<_.length;g++){var x=_[g];null!=i._nodeMap[x.uniqueId]&&m.push(i._nodeMap[x.uniqueId])}m.length&&(a.children=m)}}}s.nodes.length&&i._scenes.push(s)}))}))}))},e.prototype.createNodeMapAndAnimationsAsync=function(e,t,r){for(var a,o=this,i=Promise.resolve(),u={},l={name:"runtime animations",channels:[],samplers:[]},c=[],f=function(t){!h._options.shouldExportNode||h._options.shouldExportNode(t)?i=i.then((function(){var i=o._convertToRightHandedSystemMap[t.uniqueId];return o.createNodeAsync(t,r,i,u).then((function(f){var h=o._extensionsPostExportNodeAsync("createNodeAsync",f,t,u);return null==h?(n.Tools.Warn("Not exporting node "+t.name),Promise.resolve()):h.then((function(n){n&&(o._nodes.push(n),a=o._nodes.length-1,u[t.uniqueId]=a,e.animationGroups.length||(s.a._CreateMorphTargetAnimationFromMorphTargetAnimations(t,l,c,u,o._nodes,r,o._bufferViews,o._accessors,i,o._animationSampleRate),t.animations.length&&s.a._CreateNodeAnimationFromNodeAnimations(t,l,c,u,o._nodes,r,o._bufferViews,o._accessors,i,o._animationSampleRate)))}))}))})):t.name},h=this,p=0,d=t;p<d.length;p++){f(d[p])}return i.then((function(){return l.channels.length&&l.samplers.length&&o._animations.push(l),c.forEach((function(e){e.channels.length&&e.samplers.length&&o._animations.push(e)})),e.animationGroups.length&&s.a._CreateNodeAndMorphAnimationFromAnimationGroups(e,o._animations,u,o._nodes,r,o._bufferViews,o._accessors,o._convertToRightHandedSystemMap,o._animationSampleRate),u}))},e.prototype.createNodeAsync=function(e,t,r,a){var o=this;return Promise.resolve().then((function(){var a={},i={primitives:[]};if(e.name&&(a.name=e.name),e instanceof n.TransformNode){if(o.setNodeTransformation(a,e,r),e instanceof n.Mesh){var s=e.morphTargetManager;if(s&&s.numTargets>0){i.weights=[];for(var u=0;u<s.numTargets;++u)i.weights.push(s.getTarget(u).influence)}}return o.setPrimitiveAttributesAsync(i,e,t,r).then((function(){return i.primitives.length&&(o._meshes.push(i),a.mesh=o._meshes.length-1),a}))}return a}))},e.prototype.createSkinsAsync=function(e,t,r){for(var n=Promise.resolve(),a={},i=function(n){var i={joints:[]},u=[],l=e.meshes.find((function(e){e.skeleton}));i.skeleton=null===n.overrideMesh?l?t[l.uniqueId]:void 0:t[n.overrideMesh.uniqueId];for(var c={},f=-1,h=-1,p=0,d=n.bones;p<d.length;p++){(h=(g=d[p]).getIndex())>-1&&(c[h]=g),f=Math.max(f,h)}for(var m=0;m<=f;++m){var g,_=(g=c[m]).getTransformNode();if(_){var x=g.getInvertedAbsoluteTransform();s._convertToRightHandedSystem&&o.a._GetRightHandedMatrixFromRef(x),u.push(x),i.joints.push(t[_.uniqueId])}}var y=64*u.length,T=r.getByteOffset(),v=o.a._CreateBufferView(0,T,y,64,"InverseBindMatrices - "+n.name);s._bufferViews.push(v);var b=s._bufferViews.length-1,A=o.a._CreateAccessor(b,"InverseBindMatrices - "+n.name,"MAT4",5126,u.length,null,null,null),F=s._accessors.push(A)-1;i.inverseBindMatrices=F,s._skins.push(i),a[n.uniqueId]=s._skins.length-1,u.forEach((function(e){e.m.forEach((function(e){r.setFloat32(e)}))}))},s=this,u=0,l=e.skeletons;u<l.length;u++){i(l[u])}return n.then((function(){return a}))},e._ExtensionNames=new Array,e._ExtensionFactories={},e}(),l=function(){function e(e){this._arrayBuffer=new ArrayBuffer(e),this._dataView=new DataView(this._arrayBuffer),this._byteOffset=0}return e.prototype.resizeBuffer=function(e){for(var t=new ArrayBuffer(e),r=new Uint8Array(this._arrayBuffer),n=new Uint8Array(t),a=0,o=n.byteLength;a<o;++a)n[a]=r[a];return this._arrayBuffer=t,this._dataView=new DataView(this._arrayBuffer),t},e.prototype.getArrayBuffer=function(){return this.resizeBuffer(this.getByteOffset())},e.prototype.getByteOffset=function(){if(null==this._byteOffset)throw new Error("Byte offset is undefined!");return this._byteOffset},e.prototype.setUInt8=function(e,t){null!=t?t<this._byteOffset?this._dataView.setUint8(t,e):n.Tools.Error("BinaryWriter: byteoffset is greater than the current binary buffer length!"):(this._byteOffset+1>this._arrayBuffer.byteLength&&this.resizeBuffer(2*this._arrayBuffer.byteLength),this._dataView.setUint8(this._byteOffset,e),this._byteOffset+=1)},e.prototype.setUInt16=function(e,t){null!=t?t<this._byteOffset?this._dataView.setUint16(t,e,!0):n.Tools.Error("BinaryWriter: byteoffset is greater than the current binary buffer length!"):(this._byteOffset+2>this._arrayBuffer.byteLength&&this.resizeBuffer(2*this._arrayBuffer.byteLength),this._dataView.setUint16(this._byteOffset,e,!0),this._byteOffset+=2)},e.prototype.getUInt32=function(e){if(e<this._byteOffset)return this._dataView.getUint32(e,!0);throw n.Tools.Error("BinaryWriter: byteoffset is greater than the current binary buffer length!"),new Error("BinaryWriter: byteoffset is greater than the current binary buffer length!")},e.prototype.getVector3Float32FromRef=function(e,t){t+8>this._byteOffset?n.Tools.Error("BinaryWriter: byteoffset is greater than the current binary buffer length!"):(e.x=this._dataView.getFloat32(t,!0),e.y=this._dataView.getFloat32(t+4,!0),e.z=this._dataView.getFloat32(t+8,!0))},e.prototype.setVector3Float32FromRef=function(e,t){t+8>this._byteOffset?n.Tools.Error("BinaryWriter: byteoffset is greater than the current binary buffer length!"):(this._dataView.setFloat32(t,e.x,!0),this._dataView.setFloat32(t+4,e.y,!0),this._dataView.setFloat32(t+8,e.z,!0))},e.prototype.getVector4Float32FromRef=function(e,t){t+12>this._byteOffset?n.Tools.Error("BinaryWriter: byteoffset is greater than the current binary buffer length!"):(e.x=this._dataView.getFloat32(t,!0),e.y=this._dataView.getFloat32(t+4,!0),e.z=this._dataView.getFloat32(t+8,!0),e.w=this._dataView.getFloat32(t+12,!0))},e.prototype.setVector4Float32FromRef=function(e,t){t+12>this._byteOffset?n.Tools.Error("BinaryWriter: byteoffset is greater than the current binary buffer length!"):(this._dataView.setFloat32(t,e.x,!0),this._dataView.setFloat32(t+4,e.y,!0),this._dataView.setFloat32(t+8,e.z,!0),this._dataView.setFloat32(t+12,e.w,!0))},e.prototype.setFloat32=function(e,t){isNaN(e)&&n.Tools.Error("Invalid data being written!"),null!=t&&(t<this._byteOffset?this._dataView.setFloat32(t,e,!0):n.Tools.Error("BinaryWriter: byteoffset is greater than the current binary length!")),this._byteOffset+4>this._arrayBuffer.byteLength&&this.resizeBuffer(2*this._arrayBuffer.byteLength),this._dataView.setFloat32(this._byteOffset,e,!0),this._byteOffset+=4},e.prototype.setUInt32=function(e,t){null!=t?t<this._byteOffset?this._dataView.setUint32(t,e,!0):n.Tools.Error("BinaryWriter: byteoffset is greater than the current binary buffer length!"):(this._byteOffset+4>this._arrayBuffer.byteLength&&this.resizeBuffer(2*this._arrayBuffer.byteLength),this._dataView.setUint32(this._byteOffset,e,!0),this._byteOffset+=4)},e}()},function(e,t,r){"use strict";r.r(t),r.d(t,"GLTFData",(function(){return n}));var n=function(){function e(){this.glTFFiles={}}return e.prototype.downloadFiles=function(){function e(e,t){return-1!==e.indexOf(t,e.length-t.length)}for(var t in this.glTFFiles){var r=document.createElement("a");document.body.appendChild(r),r.setAttribute("type","hidden"),r.download=t;var n=this.glTFFiles[t],a=void 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h,p=t===n.INTANGENT?u.inTangent:u.outTangent;if("CUBICSPLINE"===s){if("rotation"===i)if(p){if(c)h=p.asArray();else{var d=p;h=a.Quaternion.RotationYawPitchRoll(d.y,d.x,d.z).asArray()}f&&(o.a._GetRightHandedQuaternionArrayFromRef(h),e.parent||(h=a.Quaternion.FromArray([0,1,0,0]).multiply(a.Quaternion.FromArray(h)).asArray()))}else h=[0,0,0,0];else"weights"===i?h=p?[p]:[0]:p?(h=p.asArray(),f&&"translation"===i&&(o.a._GetRightHandedPositionArray3FromRef(h),e.parent||(h[0]*=-1,h[2]*=-1))):h=[0,0,0];r.push(h)}},e.calculateMinMaxKeyFrames=function(e){var t=1/0,r=-1/0;return e.forEach((function(e){t=Math.min(t,e.frame),r=Math.max(r,e.frame)})),{min:t,max:r}},e}()},function(e,t,r){"use strict";r.r(t),r.d(t,"GLTF2Export",(function(){return a}));var n=r(2),a=function(){function e(){}return e.GLTFAsync=function(e,t,r){return e.whenReadyAsync().then((function(){var a=t.replace(/\.[^/.]+$/,"");return new n.b(e,r)._generateGLTFAsync(a)}))},e._PreExportAsync=function(e,t){return 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n={},a=!1;if(0===r.uOffset&&0===r.vOffset||(n.offset=[r.uOffset,r.vOffset],a=!0),1===r.uScale&&1===r.vScale||(n.scale=[r.uScale,r.vScale],a=!0),0!==r.wAng&&(n.rotation=r.wAng,a=!0),0!==r.coordinatesIndex&&(n.texCoord=r.coordinatesIndex,a=!0),!a)return;this._wasUsed=!0,t.extensions||(t.extensions={}),t.extensions[i]=n}},e.prototype.preExportTextureAsync=function(e,t,r){var n=this;return new Promise((function(r,a){var o=t.getScene();if(o){var i=!1;if(0===t.uAng&&0===t.wAng&&0===t.vAng||0===t.uRotationCenter&&0===t.vRotationCenter||(i=!0),i)return n._textureTransformTextureAsync(t,o).then((function(e){r(e)})).catch((function(e){a(e)}));r(t)}else a(e+': "scene" is not defined for Babylon texture '+t.name+"!")}))},e.prototype._textureTransformTextureAsync=function(e,t){var r=this;return new Promise((function(a){var o=new n.ProceduralTexture(""+e.name,e.getSize(),"textureTransform",t);o||(n.Tools.Log("Cannot create procedural texture for "+e.name+"!"),a(e)),o.reservedDataStore={hidden:!0,source:e},r._recordedTextures.push(o),o.coordinatesIndex=e.coordinatesIndex,o.setTexture("textureSampler",e),o.setMatrix("textureTransformMat",e.getTextureMatrix()),o.isReady()?(o.render(),a(o)):o.getEffect().executeWhenCompiled((function(){o.render(),a(o)}))}))},e}();a.b.RegisterExtension(i,(function(e){return new s(e)}));var u=r(1),l=function(){function e(e){this.name="KHR_lights_punctual",this.enabled=!0,this.required=!1,this._exporter=e}return e.prototype.dispose=function(){this._lights=null},Object.defineProperty(e.prototype,"wasUsed",{get:function(){return!!this._lights},enumerable:!1,configurable:!0}),e.prototype.onExporting=function(){this._exporter._glTF.extensions.KHR_lights_punctual=this._lights},e.prototype.postExportNodeAsync=function(e,t,r,a){var o=this;return new Promise((function(i,s){if(t&&r instanceof n.ShadowLight){var l=r,c=void 0,f=l.getTypeID()==n.Light.LIGHTTYPEID_POINTLIGHT?"point":l.getTypeID()==n.Light.LIGHTTYPEID_DIRECTIONALLIGHT?"directional":l.getTypeID()==n.Light.LIGHTTYPEID_SPOTLIGHT?"spot":null;if(null==f)n.Logger.Warn(e+": Light "+l.name+" is not supported in KHR_lights_punctual");else{var h=l.position.clone(),p=o._exporter._convertToRightHandedSystemMap[r.uniqueId];if(h.equals(n.Vector3.Zero())||(p&&u.a._GetRightHandedPositionVector3FromRef(h),t.translation=h.asArray()),"point"!==f){var d=l.direction,m=-Math.atan2(d.z*(o._exporter._babylonScene.useRightHandedSystem?-1:1),d.x)+Math.PI/2,g=Math.sqrt(d.x*d.x+d.z*d.z),_=-Math.atan2(d.y,g),x=n.Quaternion.RotationYawPitchRoll(m,_,0);p&&u.a._GetRightHandedQuaternionFromRef(x),x.equals(n.Quaternion.Identity())||(t.rotation=x.asArray())}if(l.falloffType!==n.Light.FALLOFF_GLTF&&n.Logger.Warn(e+": Light falloff for "+l.name+" does not match the KHR_lights_punctual specification!"),c={type:f},l.diffuse.equals(n.Color3.White())||(c.color=l.diffuse.asArray()),1!==l.intensity&&(c.intensity=l.intensity),l.range!==Number.MAX_VALUE&&(c.range=l.range),"spot"===f){var y=l;y.angle!==Math.PI/2&&(null==c.spot&&(c.spot={}),c.spot.outerConeAngle=y.angle/2),0!==y.innerAngle&&(null==c.spot&&(c.spot={}),c.spot.innerConeAngle=y.innerAngle/2)}null==o._lights&&(o._lights={lights:[]}),o._lights.lights.push(c);var T={light:o._lights.lights.length-1},v=r.parent;if(v&&1==v.getChildren().length){var b=o._exporter._nodes[a[v.uniqueId]];if(b){var A=n.TmpVectors.Matrix[0],F=n.TmpVectors.Matrix[1],E=b.translation?new n.Vector3(b.translation[0],b.translation[1],b.translation[2]):n.Vector3.Zero(),M=b.rotation?new n.Quaternion(b.rotation[0],b.rotation[1],b.rotation[2],b.rotation[3]):n.Quaternion.Identity(),R=b.scale?new n.Vector3(b.scale[0],b.scale[1],b.scale[2]):n.Vector3.One();n.Matrix.ComposeToRef(R,M,E,A),A.invertToRef(F);var V=n.TmpVectors.Matrix[2],w=t.translation?new n.Vector3(t.translation[0],t.translation[1],t.translation[2]):n.Vector3.Zero();l instanceof n.DirectionalLight&&w.subtractInPlace(o._exporter._babylonScene.useRightHandedSystem?l.direction:u.a._GetRightHandedPositionVector3(l.direction));var S=o._exporter._babylonScene.useRightHandedSystem?n.Quaternion.Identity():new n.Quaternion(0,1,0,0);t.rotation&&S.multiplyInPlace(new n.Quaternion(t.rotation[0],t.rotation[1],t.rotation[2],t.rotation[3]));var C=t.scale?new n.Vector3(t.scale[0],t.scale[1],t.scale[2]):n.Vector3.One();n.Matrix.ComposeToRef(C,S,w,V),V.multiplyToRef(F,V);var B=n.TmpVectors.Vector3[0],I=n.TmpVectors.Quaternion[0],P=n.TmpVectors.Vector3[1];return V.decompose(B,I,P),b.scale=B.asArray(),b.rotation=I.asArray(),b.translation=P.asArray(),null==b.extensions&&(b.extensions={}),b.extensions.KHR_lights_punctual=T,void i(void 0)}}null==t.extensions&&(t.extensions={}),t.extensions.KHR_lights_punctual=T}}i(t)}))},e}();a.b.RegisterExtension("KHR_lights_punctual",(function(e){return new l(e)}));var c=function(){function e(e){this.name="KHR_materials_sheen",this.enabled=!0,this.required=!1,this._textureInfos=[],this._exportedTextures=[],this._wasUsed=!1}return e.prototype.dispose=function(){this._textureInfos=[],this._exportedTextures=[]},Object.defineProperty(e.prototype,"wasUsed",{get:function(){return this._wasUsed},enumerable:!1,configurable:!0}),e.prototype._getTextureIndex=function(e){var t=this._exportedTextures.indexOf(e);return-1===t&&e.reservedDataStore&&(t=this._exportedTextures.indexOf(e.reservedDataStore.source)),t},e.prototype.postExportTexture=function(e,t,r){var n=this._getTextureIndex(r);n>-1&&(this._textureInfos[n]=t)},e.prototype.postExportMaterialAdditionalTextures=function(e,t,r){return r instanceof n.PBRMaterial&&r.sheen.isEnabled&&r.sheen.texture?(this._exportedTextures.push(r.sheen.texture),[r.sheen.texture]):[]},e.prototype.postExportMaterialAsync=function(e,t,r){var a=this;return new Promise((function(e,o){var i;if(r instanceof n.PBRMaterial){if(!r.sheen.isEnabled)return void e(t);a._wasUsed=!0,null==t.extensions&&(t.extensions={});var s={sheenColorFactor:r.sheen.color.asArray(),sheenRoughnessFactor:null!==(i=r.sheen.roughness)&&void 0!==i?i:0};if(r.sheen.texture)(u=a._getTextureIndex(r.sheen.texture))>-1&&(s.sheenColorTexture=a._textureInfos[u]);if(r.sheen.textureRoughness&&!r.sheen.useRoughnessFromMainTexture)(u=a._getTextureIndex(r.sheen.textureRoughness))>-1&&(s.sheenRoughnessTexture=a._textureInfos[u]);else if(r.sheen.texture&&r.sheen.useRoughnessFromMainTexture){var u;(u=a._getTextureIndex(r.sheen.texture))>-1&&(s.sheenRoughnessTexture=a._textureInfos[u])}t.extensions.KHR_materials_sheen=s}e(t)}))},e}();a.b.RegisterExtension("KHR_materials_sheen",(function(e){return new c(e)}));var f=function(){function e(e){this.name="KHR_materials_unlit",this.enabled=!0,this.required=!1,this._wasUsed=!1}return Object.defineProperty(e.prototype,"wasUsed",{get:function(){return this._wasUsed},enumerable:!1,configurable:!0}),e.prototype.dispose=function(){},e.prototype.postExportMaterialAsync=function(e,t,r){var a=this;return new Promise((function(e,o){var i=!1;r instanceof n.PBRMaterial?i=r.unlit:r instanceof n.StandardMaterial&&(i=r.disableLighting),i&&(a._wasUsed=!0,null==t.extensions&&(t.extensions={}),t.extensions.KHR_materials_unlit={}),e(t)}))},e}();a.b.RegisterExtension("KHR_materials_unlit",(function(e){return new f(e)}))},function(e,t,r){"use strict";r.d(t,"a",(function(){return a}));var n=r(0),a=function(){function e(e){this._textureMap={},this._textureMap={},this._exporter=e}return e.FuzzyEquals=function(e,t,r){return n.Scalar.WithinEpsilon(e.r,t.r,r)&&n.Scalar.WithinEpsilon(e.g,t.g,r)&&n.Scalar.WithinEpsilon(e.b,t.b,r)},e.prototype._convertMaterialsToGLTFAsync=function(e,t,r){for(var a=[],o=0,i=e;o<i.length;o++){var s=i[o];s instanceof n.StandardMaterial?a.push(this._convertStandardMaterialAsync(s,t,r)):s instanceof n.PBRMetallicRoughnessMaterial?a.push(this._convertPBRMetallicRoughnessMaterialAsync(s,t,r)):s instanceof n.PBRMaterial?a.push(this._convertPBRMaterialAsync(s,t,r)):n.Tools.Warn("Unsupported material type: "+s.name)}return Promise.all(a).then((function(){}))},e.prototype._stripTexturesFromMaterial=function(e){var t={};if(e){t.name=e.name,t.doubleSided=e.doubleSided,t.alphaMode=e.alphaMode,t.alphaCutoff=e.alphaCutoff,t.emissiveFactor=e.emissiveFactor;var r=e.pbrMetallicRoughness;r&&(t.pbrMetallicRoughness={},t.pbrMetallicRoughness.baseColorFactor=r.baseColorFactor,t.pbrMetallicRoughness.metallicFactor=r.metallicFactor,t.pbrMetallicRoughness.roughnessFactor=r.roughnessFactor)}return t},e.prototype._hasTexturesPresent=function(e){if(e.emissiveTexture||e.normalTexture||e.occlusionTexture)return!0;var t=e.pbrMetallicRoughness;return!(!t||!t.baseColorTexture&&!t.metallicRoughnessTexture)},e.prototype._convertToGLTFPBRMetallicRoughness=function(t){var r=new n.Vector2(0,1),a=new n.Vector2(0,.1),o=new n.Vector2(0,.1),i=new n.Vector2(1300,.1);var s=t.diffuseColor.toLinearSpace().scale(.5),u=t.alpha,l=function(e){return function(e,t,r,n,a){return(1-e)*(1-e)*(1-e)*t+3*(1-e)*(1-e)*e*r+3*(1-e)*e*e*n+e*e*e*a}(Math.pow(e/i.x,.333333),r.y,a.y,o.y,i.y)}(n.Scalar.Clamp(t.specularPower,0,e._MaxSpecularPower));return{baseColorFactor:[s.r,s.g,s.b,u],metallicFactor:0,roughnessFactor:l}},e._SolveMetallic=function(e,t,r){if(t<this._DielectricSpecular.r)return this._DielectricSpecular,0;var a=this._DielectricSpecular.r,o=e*r/(1-this._DielectricSpecular.r)+t-2*this._DielectricSpecular.r,i=o*o-4*a*(this._DielectricSpecular.r-t);return n.Scalar.Clamp((-o+Math.sqrt(i))/(2*a),0,1)},e._SetAlphaMode=function(e,t){t.needAlphaBlending()?e.alphaMode="BLEND":t.needAlphaTesting()&&(e.alphaMode="MASK",e.alphaCutoff=t.alphaCutOff)},e.prototype._convertStandardMaterialAsync=function(t,r,a){var o=this._exporter._materialMap,i=this._exporter._materials,s=[],u=this._convertToGLTFPBRMetallicRoughness(t),l={name:t.name};return null==t.backFaceCulling||t.backFaceCulling||(t.twoSidedLighting||n.Tools.Warn(t.name+": Back-face culling enabled and two-sided lighting disabled is not supported in glTF."),l.doubleSided=!0),a&&(t.diffuseTexture&&s.push(this._exportTextureAsync(t.diffuseTexture,r).then((function(e){e&&(u.baseColorTexture=e)}))),t.bumpTexture&&s.push(this._exportTextureAsync(t.bumpTexture,r).then((function(e){e&&(l.normalTexture=e,null!=t.bumpTexture&&1!==t.bumpTexture.level&&(l.normalTexture.scale=t.bumpTexture.level))}))),t.emissiveTexture&&(l.emissiveFactor=[1,1,1],s.push(this._exportTextureAsync(t.emissiveTexture,r).then((function(e){e&&(l.emissiveTexture=e)})))),t.ambientTexture&&s.push(this._exportTextureAsync(t.ambientTexture,r).then((function(e){if(e){var t={index:e.index};l.occlusionTexture=t,t.strength=1}})))),(t.alpha<1||t.opacityTexture)&&(t.alphaMode===n.Constants.ALPHA_COMBINE?l.alphaMode="BLEND":n.Tools.Warn(t.name+": glTF 2.0 does not support alpha mode: "+t.alphaMode.toString())),t.emissiveColor&&!e.FuzzyEquals(t.emissiveColor,n.Color3.Black(),e._Epsilon)&&(l.emissiveFactor=t.emissiveColor.asArray()),l.pbrMetallicRoughness=u,e._SetAlphaMode(l,t),i.push(l),o[t.uniqueId]=i.length-1,this._finishMaterial(s,l,t,r)},e.prototype._finishMaterial=function(e,t,r,n){var a=this;return Promise.all(e).then((function(){for(var e=null,o=0,i=a._exporter._extensionsPostExportMaterialAdditionalTextures("exportMaterial",t,r);o<i.length;o++){var s=i[o];e||(e=[]),e.push(a._exportTextureAsync(s,n))}return e||(e=[Promise.resolve(null)]),Promise.all(e).then((function(){var e=a._exporter._extensionsPostExportMaterialAsync("exportMaterial",t,r);return e?e.then((function(){return t})):t}))}))},e.prototype._convertPBRMetallicRoughnessMaterialAsync=function(t,r,a){var o=this._exporter._materialMap,i=this._exporter._materials,s=[],u={};t.baseColor&&(u.baseColorFactor=[t.baseColor.r,t.baseColor.g,t.baseColor.b,t.alpha]),null!=t.metallic&&1!==t.metallic&&(u.metallicFactor=t.metallic),null!=t.roughness&&1!==t.roughness&&(u.roughnessFactor=t.roughness);var l={name:t.name};return t.doubleSided&&(l.doubleSided=t.doubleSided),e._SetAlphaMode(l,t),a&&(null!=t.baseTexture&&s.push(this._exportTextureAsync(t.baseTexture,r).then((function(e){e&&(u.baseColorTexture=e)}))),t.normalTexture&&s.push(this._exportTextureAsync(t.normalTexture,r).then((function(e){e&&(l.normalTexture=e,1!==t.normalTexture.level&&(l.normalTexture.scale=t.normalTexture.level))}))),t.occlusionTexture&&s.push(this._exportTextureAsync(t.occlusionTexture,r).then((function(e){e&&(l.occlusionTexture=e,null!=t.occlusionStrength&&(l.occlusionTexture.strength=t.occlusionStrength))}))),t.emissiveTexture&&s.push(this._exportTextureAsync(t.emissiveTexture,r).then((function(e){e&&(l.emissiveTexture=e)})))),e.FuzzyEquals(t.emissiveColor,n.Color3.Black(),e._Epsilon)&&(l.emissiveFactor=t.emissiveColor.asArray()),l.pbrMetallicRoughness=u,i.push(l),o[t.uniqueId]=i.length-1,this._finishMaterial(s,l,t,r)},e.prototype._createBase64FromCanvasAsync=function(e,t,r,a){var o=this;return new Promise((function(i,s){var u,l=n.Constants.TEXTURETYPE_UNSIGNED_INT,c=o._exporter._getLocalEngine();u=new n.Scene(c);var f=c.createRawTexture(e,t,r,n.Constants.TEXTUREFORMAT_RGBA,!1,!0,n.Texture.NEAREST_SAMPLINGMODE,null,l),h=new n.PostProcess("pass","pass",null,null,1,null,n.Texture.NEAREST_SAMPLINGMODE,c,!1,void 0,n.Constants.TEXTURETYPE_UNSIGNED_INT,void 0,null,!1);h.getEffect().executeWhenCompiled((function(){var e,o;h.onApply=function(e){e._bindTexture("textureSampler",f)},c.setSize(t,r),u.postProcessManager.directRender([h],null),h.dispose(),f.dispose();var l=c.getRenderingCanvas(),p=document.createElement("canvas");if(p.width=null!==(e=null==l?void 0:l.width)&&void 0!==e?e:0,p.height=null!==(o=null==l?void 0:l.height)&&void 0!==o?o:0,p.getContext("2d").drawImage(l,0,0),p)if(p.toBlob)n.Tools.ToBlob(p,(function(e){if(p=null,e){var t=new FileReader;t.onload=function(e){var t=e.target.result;u.dispose(),i(t)},t.readAsDataURL(e)}else s("gltfMaterialExporter: Failed to get blob from image canvas!")}),a);else{var d=p.toDataURL();i(d)}else s("Engine is missing a canvas!")}))}))},e.prototype._createWhiteTexture=function(e,t,r){for(var a=new Uint8Array(e*t*4),o=0;o<a.length;o+=4)a[o]=a[o+1]=a[o+2]=a[o+3]=255;return n.RawTexture.CreateRGBATexture(a,e,t,r)},e.prototype._resizeTexturesToSameDimensions=function(e,t,r){var a,o,i=e?e.getSize():{width:0,height:0},s=t?t.getSize():{width:0,height:0};return i.width<s.width?(a=e&&e instanceof n.Texture?n.TextureTools.CreateResizedCopy(e,s.width,s.height,!0):this._createWhiteTexture(s.width,s.height,r),o=t):i.width>s.width?(o=t&&t instanceof n.Texture?n.TextureTools.CreateResizedCopy(t,i.width,i.height,!0):this._createWhiteTexture(i.width,i.height,r),a=e):(a=e,o=t),{texture1:a,texture2:o}},e.prototype._convertPixelArrayToFloat32=function(e){if(e instanceof Uint8Array){for(var t=e.length,r=new Float32Array(e.length),n=0;n<t;++n)r[n]=e[n]/255;return r}if(e instanceof Float32Array)return e;throw new Error("Unsupported pixel format!")},e.prototype._convertSpecularGlossinessTexturesToMetallicRoughnessAsync=function(t,r,a,o){var i=[];if(!t&&!r)return Promise.reject("_ConvertSpecularGlosinessTexturesToMetallicRoughness: diffuse and specular glossiness textures are not defined!");var s=t?t.getScene():r?r.getScene():null;if(s){var u=this._resizeTexturesToSameDimensions(t,r,s),l=u.texture1.getSize(),c=void 0,f=void 0,h=l.width,p=l.height,d=u.texture1.readPixels(),m=u.texture2.readPixels();if(!d)return Promise.reject("Failed to retrieve pixels from diffuse texture!");if(c=this._convertPixelArrayToFloat32(d),!m)return Promise.reject("Failed to retrieve pixels from specular glossiness texture!");for(var g=(f=this._convertPixelArrayToFloat32(m)).byteLength,_=new Uint8Array(g),x=new Uint8Array(g),y=n.Color3.Black(),T=0,v=0,b=0;b<p;++b)for(var A=0;A<h;++A){var F=4*(h*b+A),E={diffuseColor:new n.Color3(c[F],c[F+1],c[F+2]).toLinearSpace().multiply(a.diffuseColor),specularColor:new n.Color3(f[F],f[F+1],f[F+2]).toLinearSpace().multiply(a.specularColor),glossiness:f[F+3]*a.glossiness},M=this._convertSpecularGlossinessToMetallicRoughness(E);y.r=Math.max(y.r,M.baseColor.r),y.g=Math.max(y.g,M.baseColor.g),y.b=Math.max(y.b,M.baseColor.b),T=Math.max(T,M.metallic),v=Math.max(v,M.roughness),x[F]=255*M.baseColor.r,x[F+1]=255*M.baseColor.g,x[F+2]=255*M.baseColor.b,x[F+3]=u.texture1.hasAlpha?255*c[F+3]:255,_[F]=0,_[F+1]=255*M.roughness,_[F+2]=255*M.metallic,_[F+3]=255}var R={baseColor:y,metallic:T,roughness:v},V=!1,w=!1;for(b=0;b<p;++b)for(A=0;A<h;++A){var S=4*(h*b+A);x[S]/=R.baseColor.r>e._Epsilon?R.baseColor.r:1,x[S+1]/=R.baseColor.g>e._Epsilon?R.baseColor.g:1,x[S+2]/=R.baseColor.b>e._Epsilon?R.baseColor.b:1;var C=n.Color3.FromInts(x[S],x[S+1],x[S+2]).toGammaSpace();x[S]=255*C.r,x[S+1]=255*C.g,x[S+2]=255*C.b,e.FuzzyEquals(C,n.Color3.White(),e._Epsilon)||(w=!0),_[S+1]/=R.roughness>e._Epsilon?R.roughness:1,_[S+2]/=R.metallic>e._Epsilon?R.metallic:1;var B=n.Color3.FromInts(255,_[S+1],_[S+2]);e.FuzzyEquals(B,n.Color3.White(),e._Epsilon)||(V=!0)}if(V){var I=this._createBase64FromCanvasAsync(_,h,p,o).then((function(e){R.metallicRoughnessTextureBase64=e}));i.push(I)}if(w){I=this._createBase64FromCanvasAsync(x,h,p,o).then((function(e){R.baseColorTextureBase64=e}));i.push(I)}return Promise.all(i).then((function(){return R}))}return Promise.reject("_ConvertSpecularGlossinessTexturesToMetallicRoughness: Scene from textures is missing!")},e.prototype._convertSpecularGlossinessToMetallicRoughness=function(t){var r=this._getPerceivedBrightness(t.diffuseColor),a=this._getPerceivedBrightness(t.specularColor),o=1-this._getMaxComponent(t.specularColor),i=e._SolveMetallic(r,a,o),s=t.diffuseColor.scale(o/(1-e._DielectricSpecular.r)/Math.max(1-i,e._Epsilon)),u=t.specularColor.subtract(e._DielectricSpecular.scale(1-i)).scale(1/Math.max(i,e._Epsilon)),l=n.Color3.Lerp(s,u,i*i);return{baseColor:l=l.clampToRef(0,1,l),metallic:i,roughness:1-t.glossiness}},e.prototype._getPerceivedBrightness=function(e){return e?Math.sqrt(.299*e.r*e.r+.587*e.g*e.g+.114*e.b*e.b):0},e.prototype._getMaxComponent=function(e){return e?Math.max(e.r,Math.max(e.g,e.b)):0},e.prototype._convertMetalRoughFactorsToMetallicRoughnessAsync=function(e,t,r,n){var a=[],o={baseColor:e.albedoColor,metallic:e.metallic,roughness:e.roughness};return n&&(e.albedoTexture&&a.push(this._exportTextureAsync(e.albedoTexture,t).then((function(e){e&&(r.baseColorTexture=e)}))),e.metallicTexture&&a.push(this._exportTextureAsync(e.metallicTexture,t).then((function(e){e&&(r.metallicRoughnessTexture=e)})))),Promise.all(a).then((function(){return o}))},e.prototype._getGLTFTextureSampler=function(e){var t=this._getGLTFTextureWrapModesSampler(e),r=e instanceof n.Texture?e.samplingMode:null;if(null!=r)switch(r){case n.Texture.LINEAR_LINEAR:t.magFilter=9729,t.minFilter=9729;break;case n.Texture.LINEAR_NEAREST:t.magFilter=9729,t.minFilter=9728;break;case n.Texture.NEAREST_LINEAR:t.magFilter=9728,t.minFilter=9729;break;case n.Texture.NEAREST_LINEAR_MIPLINEAR:t.magFilter=9728,t.minFilter=9987;break;case n.Texture.NEAREST_NEAREST:t.magFilter=9728,t.minFilter=9728;break;case n.Texture.NEAREST_LINEAR_MIPNEAREST:t.magFilter=9728,t.minFilter=9985;break;case n.Texture.LINEAR_NEAREST_MIPNEAREST:t.magFilter=9729,t.minFilter=9984;break;case n.Texture.LINEAR_NEAREST_MIPLINEAR:t.magFilter=9729,t.minFilter=9986;break;case n.Texture.NEAREST_NEAREST_MIPLINEAR:t.magFilter=9728,t.minFilter=9986;break;case n.Texture.LINEAR_LINEAR_MIPLINEAR:t.magFilter=9729,t.minFilter=9987;break;case n.Texture.LINEAR_LINEAR_MIPNEAREST:t.magFilter=9729,t.minFilter=9985;break;case n.Texture.NEAREST_NEAREST_MIPNEAREST:t.magFilter=9728,t.minFilter=9984}return t},e.prototype._getGLTFTextureWrapMode=function(e){switch(e){case n.Texture.WRAP_ADDRESSMODE:return 10497;case n.Texture.CLAMP_ADDRESSMODE:return 33071;case n.Texture.MIRROR_ADDRESSMODE:return 33648;default:return n.Tools.Error("Unsupported Texture Wrap Mode "+e+"!"),10497}},e.prototype._getGLTFTextureWrapModesSampler=function(e){var t=this._getGLTFTextureWrapMode(e instanceof n.Texture?e.wrapU:n.Texture.WRAP_ADDRESSMODE),r=this._getGLTFTextureWrapMode(e instanceof n.Texture?e.wrapV:n.Texture.WRAP_ADDRESSMODE);return 10497===t&&10497===r?{}:{wrapS:t,wrapT:r}},e.prototype._convertSpecGlossFactorsToMetallicRoughnessAsync=function(e,t,r,a){var o=this;return Promise.resolve().then((function(){var i=o._exporter._samplers,s=o._exporter._textures,u={diffuseColor:e.albedoColor||n.Color3.White(),specularColor:e.reflectivityColor||n.Color3.White(),glossiness:e.microSurface||1},l=null,c=o._getGLTFTextureSampler(e.albedoTexture);return null!=c.magFilter&&null!=c.minFilter&&null!=c.wrapS&&null!=c.wrapT&&(i.push(c),l=i.length-1),e.reflectivityTexture&&!e.useMicroSurfaceFromReflectivityMapAlpha?Promise.reject("_ConvertPBRMaterial: Glossiness values not included in the reflectivity texture are currently not supported"):(e.albedoTexture||e.reflectivityTexture)&&a?o._convertSpecularGlossinessTexturesToMetallicRoughnessAsync(e.albedoTexture,e.reflectivityTexture,u,t).then((function(n){if(n.baseColorTextureBase64){var a=o._getTextureInfoFromBase64(n.baseColorTextureBase64,"bjsBaseColorTexture_"+s.length+".png",t,e.albedoTexture?e.albedoTexture.coordinatesIndex:null,l);a&&(r.baseColorTexture=a)}if(n.metallicRoughnessTextureBase64){var i=o._getTextureInfoFromBase64(n.metallicRoughnessTextureBase64,"bjsMetallicRoughnessTexture_"+s.length+".png",t,e.reflectivityTexture?e.reflectivityTexture.coordinatesIndex:null,l);i&&(r.metallicRoughnessTexture=i)}return n})):o._convertSpecularGlossinessToMetallicRoughness(u)}))},e.prototype._convertPBRMaterialAsync=function(e,t,r){var n=this,a={},o={name:e.name};return e.isMetallicWorkflow()?(e.albedoColor&&(a.baseColorFactor=[e.albedoColor.r,e.albedoColor.g,e.albedoColor.b,e.alpha]),this._convertMetalRoughFactorsToMetallicRoughnessAsync(e,t,a,r).then((function(i){return n.setMetallicRoughnessPbrMaterial(i,e,o,a,t,r)}))):this._convertSpecGlossFactorsToMetallicRoughnessAsync(e,t,a,r).then((function(i){return n.setMetallicRoughnessPbrMaterial(i,e,o,a,t,r)}))},e.prototype.setMetallicRoughnessPbrMaterial=function(t,r,a,o,i,s){var u=this._exporter._materialMap,l=this._exporter._materials,c=[];if(t){if(e._SetAlphaMode(a,r),e.FuzzyEquals(t.baseColor,n.Color3.White(),e._Epsilon)&&r.alpha>=e._Epsilon||(o.baseColorFactor=[t.baseColor.r,t.baseColor.g,t.baseColor.b,r.alpha]),null!=t.metallic&&1!==t.metallic&&(o.metallicFactor=t.metallic),null!=t.roughness&&1!==t.roughness&&(o.roughnessFactor=t.roughness),null==r.backFaceCulling||r.backFaceCulling||(r.twoSidedLighting||n.Tools.Warn(r.name+": Back-face culling enabled and two-sided lighting disabled is not supported in glTF."),a.doubleSided=!0),s){if(r.bumpTexture){var f=this._exportTextureAsync(r.bumpTexture,i).then((function(e){e&&(a.normalTexture=e,1!==r.bumpTexture.level&&(a.normalTexture.scale=r.bumpTexture.level))}));c.push(f)}if(r.ambientTexture){f=this._exportTextureAsync(r.ambientTexture,i).then((function(e){if(e){var t={index:e.index,texCoord:e.texCoord};a.occlusionTexture=t,r.ambientTextureStrength&&(t.strength=r.ambientTextureStrength)}}));c.push(f)}if(r.emissiveTexture){f=this._exportTextureAsync(r.emissiveTexture,i).then((function(e){e&&(a.emissiveTexture=e)}));c.push(f)}}e.FuzzyEquals(r.emissiveColor,n.Color3.Black(),e._Epsilon)||(a.emissiveFactor=r.emissiveColor.asArray()),a.pbrMetallicRoughness=o,l.push(a),u[r.uniqueId]=l.length-1}return this._finishMaterial(c,a,r,i)},e.prototype.getPixelsFromTexture=function(e){return e.textureType,n.Constants.TEXTURETYPE_UNSIGNED_INT,e.readPixels()},e.prototype._exportTextureAsync=function(e,t){var r=this,n=this._exporter._extensionsPreExportTextureAsync("exporter",e,t);return n?n.then((function(n){return n?r._exportTextureInfoAsync(n,t):r._exportTextureInfoAsync(e,t)})):this._exportTextureInfoAsync(e,t)},e.prototype._exportTextureInfoAsync=function(e,t){var r=this;return Promise.resolve().then((function(){var n=e.uid;if(n in r._textureMap)return 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