var BABYLON;!(function(e){var t=(function(){function t(){}return t.GLTFAsync=function(t,r,a){return t.whenReadyAsync().then((function(){var i=r.replace(/\.[^\/.]+$/,"");return new e.GLTF2._Exporter(t,a)._generateGLTFAsync(i)}))},t.GLBAsync=function(t,r,a){return t.whenReadyAsync().then((function(){var i=r.replace(/\.[^\/.]+$/,"");return new e.GLTF2._Exporter(t,a)._generateGLBAsync(i)}))},t})();e.GLTF2Export=t})(BABYLON||(BABYLON={}));var BABYLON;!(function(e){!(function(t){var r=(function(){function r(e,r){this._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._animations=[],this._imageData={},this._convertToRightHandedSystem=!this._babylonScene.useRightHandedSystem;var a=r||{};this._shouldExportTransformNode=a.shouldExportTransformNode?a.shouldExportTransformNode:function(e){return!0},this._animationSampleRate=a.animationSampleRate?a.animationSampleRate:1/60,this._glTFMaterialExporter=new t._GLTFMaterialExporter(this)}return r.prototype._getLocalEngine=function(){if(!this._localEngine){var t=document.createElement("canvas");t.id="WriteCanvas",t.width=2048,t.height=2048,this._localEngine=new e.Engine(t,!0,{premultipliedAlpha:!1,preserveDrawingBuffer:!0}),this._localEngine.setViewport(new e.Viewport(0,0,1,1))}return this._localEngine},r.prototype.reorderIndicesBasedOnPrimitiveMode=function(t,r,a,i,n){switch(r){case e.Material.TriangleFillMode:i||(i=0);for(var o=t.indexStart,s=t.indexStart+t.indexCount;o<s;o+=3){var l=i+4*o,u=n.getUInt32(l+4),c=n.getUInt32(l+8);n.setUInt32(c,l+4),n.setUInt32(u,l+8)}break;case e.Material.TriangleFanDrawMode:for(var o=t.indexStart+t.indexCount-1,h=t.indexStart;o>=h;--o)n.setUInt32(a[o],i),i+=4;break;case e.Material.TriangleStripDrawMode:t.indexCount>=3&&(n.setUInt32(a[t.indexStart+2],i+4),n.setUInt32(a[t.indexStart+1],i+8))}},r.prototype.reorderVertexAttributeDataBasedOnPrimitiveMode=function(t,r,a,i,n,o,s){if(this._convertToRightHandedSystem&&a===e.Material.ClockWiseSideOrientation)switch(r){case e.Material.TriangleFillMode:this.reorderTriangleFillMode(t,r,a,i,n,o,s);break;case e.Material.TriangleStripDrawMode:this.reorderTriangleStripDrawMode(t,r,a,i,n,o,s);break;case e.Material.TriangleFanDrawMode:this.reorderTriangleFanMode(t,r,a,i,n,o,s)}},r.prototype.reorderTriangleFillMode=function(t,r,a,i,n,o,s){var l=this.getVertexBufferFromMesh(i,t.getMesh());if(l){var u=l.byteStride/e.VertexBuffer.GetTypeByteLength(l.type);if(t.verticesCount%3!=0)e.Tools.Error("The submesh vertices for the triangle fill mode is not divisible by 3!");else{var c=[],h=0;switch(i){case e.VertexBuffer.PositionKind:case e.VertexBuffer.NormalKind:for(var f=t.verticesStart;f<t.verticesStart+t.verticesCount;f+=3)h=f*u,c.push(e.Vector3.FromArray(n,h)),c.push(e.Vector3.FromArray(n,h+2*u)),c.push(e.Vector3.FromArray(n,h+u));break;case e.VertexBuffer.TangentKind:for(var f=t.verticesStart;f<t.verticesStart+t.verticesCount;f+=3)h=f*u,c.push(e.Vector4.FromArray(n,h)),c.push(e.Vector4.FromArray(n,h+2*u)),c.push(e.Vector4.FromArray(n,h+u));break;case e.VertexBuffer.ColorKind:for(var p=l.getSize(),f=t.verticesStart;f<t.verticesStart+t.verticesCount;f+=p)h=f*u,4===p?(c.push(e.Vector4.FromArray(n,h)),c.push(e.Vector4.FromArray(n,h+2*u)),c.push(e.Vector4.FromArray(n,h+u))):(c.push(e.Vector3.FromArray(n,h)),c.push(e.Vector3.FromArray(n,h+2*u)),c.push(e.Vector3.FromArray(n,h+u)));break;case e.VertexBuffer.UVKind:case e.VertexBuffer.UV2Kind:for(var f=t.verticesStart;f<t.verticesStart+t.verticesCount;f+=3)h=f*u,c.push(e.Vector2.FromArray(n,h)),c.push(e.Vector2.FromArray(n,h+2*u)),c.push(e.Vector2.FromArray(n,h+u));break;default:e.Tools.Error("Unsupported Vertex Buffer type: "+i)}this.writeVertexAttributeData(c,o,i,n,s)}}else e.Tools.Warn("reorderTriangleFillMode: Vertex Buffer Kind "+i+" not present!")},r.prototype.reorderTriangleStripDrawMode=function(t,r,a,i,n,o,s){var l=this.getVertexBufferFromMesh(i,t.getMesh());if(l){var u=l.byteStride/e.VertexBuffer.GetTypeByteLength(l.type),c=[],h=0;switch(i){case e.VertexBuffer.PositionKind:case e.VertexBuffer.NormalKind:h=t.verticesStart,c.push(e.Vector3.FromArray(n,h+2*u)),c.push(e.Vector3.FromArray(n,h+u));break;case e.VertexBuffer.TangentKind:for(var f=t.verticesStart+t.verticesCount-1;f>=t.verticesStart;--f)h=f*u,c.push(e.Vector4.FromArray(n,h));break;case e.VertexBuffer.ColorKind:for(var f=t.verticesStart+t.verticesCount-1;f>=t.verticesStart;--f)h=f*u,4===l.getSize()?c.push(e.Vector4.FromArray(n,h)):c.push(e.Vector3.FromArray(n,h));break;case e.VertexBuffer.UVKind:case e.VertexBuffer.UV2Kind:for(var f=t.verticesStart+t.verticesCount-1;f>=t.verticesStart;--f)h=f*u,c.push(e.Vector2.FromArray(n,h));break;default:e.Tools.Error("Unsupported Vertex Buffer type: "+i)}this.writeVertexAttributeData(c,o+12,i,n,s)}else e.Tools.Warn("reorderTriangleStripDrawMode: Vertex buffer kind "+i+" not present!")},r.prototype.reorderTriangleFanMode=function(t,r,a,i,n,o,s){var l=this.getVertexBufferFromMesh(i,t.getMesh());if(l){var u=l.byteStride/e.VertexBuffer.GetTypeByteLength(l.type),c=[],h=0;switch(i){case e.VertexBuffer.PositionKind:case e.VertexBuffer.NormalKind:for(var f=t.verticesStart+t.verticesCount-1;f>=t.verticesStart;--f)h=f*u,c.push(e.Vector3.FromArray(n,h));break;case e.VertexBuffer.TangentKind:for(var f=t.verticesStart+t.verticesCount-1;f>=t.verticesStart;--f)h=f*u,c.push(e.Vector4.FromArray(n,h));break;case e.VertexBuffer.ColorKind:for(var f=t.verticesStart+t.verticesCount-1;f>=t.verticesStart;--f)h=f*u,c.push(e.Vector4.FromArray(n,h)),4===l.getSize()?c.push(e.Vector4.FromArray(n,h)):c.push(e.Vector3.FromArray(n,h));break;case e.VertexBuffer.UVKind:case e.VertexBuffer.UV2Kind:for(var f=t.verticesStart+t.verticesCount-1;f>=t.verticesStart;--f)h=f*u,c.push(e.Vector2.FromArray(n,h));break;default:e.Tools.Error("Unsupported Vertex Buffer type: "+i)}this.writeVertexAttributeData(c,o,i,n,s)}else e.Tools.Warn("reorderTriangleFanMode: Vertex buffer kind "+i+" not present!")},r.prototype.writeVertexAttributeData=function(r,a,i,n,o){for(var s=0,l=r;s<l.length;s++){var u=l[s];!this._convertToRightHandedSystem||i===e.VertexBuffer.ColorKind||u instanceof e.Vector2||(u instanceof e.Vector3?i===e.VertexBuffer.PositionKind?t._GLTFUtilities.GetRightHandedPositionVector3FromRef(u):t._GLTFUtilities.GetRightHandedNormalVector3FromRef(u):t._GLTFUtilities.GetRightHandedVector4FromRef(u));for(var c=0,h=u.asArray();c<h.length;c++){var f=h[c];o.setFloat32(f,a),a+=4}}},r.prototype.writeAttributeData=function(r,a,i,n){var o,s=i/4,l=[];switch(r){case e.VertexBuffer.PositionKind:for(var u=0,c=a.length/s;u<c;++u){o=u*s;var h=e.Vector3.FromArray(a,o);this._convertToRightHandedSystem&&t._GLTFUtilities.GetRightHandedPositionVector3FromRef(h),l.push(h.asArray())}break;case e.VertexBuffer.NormalKind:for(var u=0,f=a.length/s;u<f;++u){o=u*s;var h=e.Vector3.FromArray(a,o);this._convertToRightHandedSystem&&t._GLTFUtilities.GetRightHandedNormalVector3FromRef(h),l.push(h.asArray())}break;case e.VertexBuffer.TangentKind:for(var u=0,p=a.length/s;u<p;++u){o=u*s;var h=e.Vector4.FromArray(a,o);this._convertToRightHandedSystem&&t._GLTFUtilities.GetRightHandedVector4FromRef(h),l.push(h.asArray())}break;case e.VertexBuffer.ColorKind:for(var u=0,d=a.length/s;u<d;++u){o=u*s;var h=3===s?e.Vector3.FromArray(a,o):e.Vector4.FromArray(a,o);l.push(h.asArray())}break;case e.VertexBuffer.UVKind:case e.VertexBuffer.UV2Kind:for(var u=0,m=a.length/s;u<m;++u)o=u*s,l.push((this._convertToRightHandedSystem,[a[o],a[o+1]]));break;default:e.Tools.Warn("Unsupported Vertex Buffer Type: "+r),l=[]}for(var g=0,y=l;g<y.length;g++)for(var T=y[g],_=0,v=T;_<v.length;_++){var x=v[_];n.setFloat32(x)}},r.prototype.generateJSON=function(e,r,a){var i,n,o,s=this,l={byteLength:this._totalByteLength},u=this._totalByteLength,c={asset:this._asset};return l.byteLength&&(c.buffers=[l]),this._nodes&&this._nodes.length&&(c.nodes=this._nodes),this._meshes&&this._meshes.length&&(c.meshes=this._meshes),this._scenes&&this._scenes.length&&(c.scenes=this._scenes,c.scene=0),this._bufferViews&&this._bufferViews.length&&(c.bufferViews=this._bufferViews),this._accessors&&this._accessors.length&&(c.accessors=this._accessors),this._animations&&this._animations.length&&(c.animations=this._animations),this._materials&&this._materials.length&&(c.materials=this._materials),this._textures&&this._textures.length&&(c.textures=this._textures),this._samplers&&this._samplers.length&&(c.samplers=this._samplers),this._images&&this._images.length&&(e?(c.images=[],this._images.forEach((function(e){e.uri&&(n=s._imageData[e.uri],i=e.uri.split(".")[0]+" image",o=t._GLTFUtilities.CreateBufferView(0,u,n.data.length,void 0,i),u+=n.data.buffer.byteLength,s._bufferViews.push(o),e.bufferView=s._bufferViews.length-1,e.name=i,e.mimeType=n.mimeType,e.uri=void 0,c.images||(c.images=[]),c.images.push(e))})),l.byteLength=u):c.images=this._images),e||(l.uri=r+".bin"),a?JSON.stringify(c,null,2):JSON.stringify(c)},r.prototype._generateGLTFAsync=function(t){var r=this;return this._generateBinaryAsync().then((function(a){var i=r.generateJSON(!1,t,!0),n=new Blob([a],{type:"application/octet-stream"}),o=t+".gltf",s=t+".bin",l=new e.GLTFData;if(l.glTFFiles[o]=i,l.glTFFiles[s]=n,r._imageData)for(var u in r._imageData)l.glTFFiles[u]=new Blob([r._imageData[u].data],{type:r._imageData[u].mimeType});return l}))},r.prototype._generateBinaryAsync=function(){var e=this,t=new a(4);return this.createSceneAsync(this._babylonScene,t).then((function(){return e._localEngine&&e._localEngine.dispose(),t.getArrayBuffer()}))},r.prototype._getPadding=function(e){var t=e%4;return 0===t?t:4-t},r.prototype._generateGLBAsync=function(t){var r=this;return this._generateBinaryAsync().then((function(a){var i=r.generateJSON(!0),n=t+".glb",o=i.length,s=0;for(var l in r._imageData)s+=r._imageData[l].data.byteLength;var u=r._getPadding(o),c=r._getPadding(a.byteLength),h=r._getPadding(s),f=28+o+u+a.byteLength+c+s+h,p=new ArrayBuffer(12),d=new DataView(p);d.setUint32(0,1179937895,!0),d.setUint32(4,2,!0),d.setUint32(8,f,!0);var m=new ArrayBuffer(8+o+u),g=new DataView(m);g.setUint32(0,o+u,!0),g.setUint32(4,1313821514,!0);for(var y=new Uint8Array(m,8),T=0;T<o;++T)y[T]=i.charCodeAt(T);for(var _=new Uint8Array(m,8+o),T=0;T<u;++T)_[T]=32;var v=new ArrayBuffer(8),x=new DataView(v);x.setUint32(0,a.byteLength+s+h,!0),x.setUint32(4,5130562,!0);for(var A=new ArrayBuffer(c),b=new Uint8Array(A),T=0;T<c;++T)b[T]=0;for(var F=new ArrayBuffer(h),M=new Uint8Array(F),T=0;T<h;++T)M[T]=0;var R=[p,m,v,a];for(var l in r._imageData)R.push(r._imageData[l].data.buffer);R.push(A),R.push(F);var S=new Blob(R,{type:"application/octet-stream"}),V=new e.GLTFData;return V.glTFFiles[n]=S,r._localEngine.dispose(),V}))},r.prototype.setNodeTransformation=function(r,a){a.position.equalsToFloats(0,0,0)||(r.translation=this._convertToRightHandedSystem?t._GLTFUtilities.GetRightHandedPositionVector3(a.position).asArray():a.position.asArray()),a.scaling.equalsToFloats(1,1,1)||(r.scale=a.scaling.asArray());var i=e.Quaternion.RotationYawPitchRoll(a.rotation.y,a.rotation.x,a.rotation.z);a.rotationQuaternion&&i.multiplyInPlace(a.rotationQuaternion),0===i.x&&0===i.y&&0===i.z&&1===i.w||(this._convertToRightHandedSystem&&t._GLTFUtilities.GetRightHandedQuaternionFromRef(i),r.rotation=i.normalize().asArray())},r.prototype.getVertexBufferFromMesh=function(e,t){if(t.isVerticesDataPresent(e)){var r=t.getVertexBuffer(e);if(r)return r}return null},r.prototype.createBufferViewKind=function(r,a,i,n){var o=a instanceof e.Mesh?a:a instanceof e.InstancedMesh?a.sourceMesh:null;if(o){var s=o.getVerticesData(r);if(s){var l=4*s.length,u=t._GLTFUtilities.CreateBufferView(0,i.getByteOffset(),l,n,r+" - "+o.name);this._bufferViews.push(u),this.writeAttributeData(r,s,n,i)}}},r.prototype.getMeshPrimitiveMode=function(t){return t instanceof e.LinesMesh?e.Material.LineListDrawMode:t.material?t.material.fillMode:e.Material.TriangleFillMode},r.prototype.setPrimitiveMode=function(t,r){switch(r){case e.Material.TriangleFillMode:break;case e.Material.TriangleStripDrawMode:t.mode=5;break;case e.Material.TriangleFanDrawMode:t.mode=6;break;case e.Material.PointListDrawMode:t.mode=0;case e.Material.PointFillMode:t.mode=0;break;case e.Material.LineLoopDrawMode:t.mode=2;break;case e.Material.LineListDrawMode:t.mode=1;break;case e.Material.LineStripDrawMode:t.mode=3}},r.prototype.setAttributeKind=function(t,r){switch(r){case e.VertexBuffer.PositionKind:t.attributes.POSITION=this._accessors.length-1;break;case e.VertexBuffer.NormalKind:t.attributes.NORMAL=this._accessors.length-1;break;case e.VertexBuffer.ColorKind:t.attributes.COLOR_0=this._accessors.length-1;break;case e.VertexBuffer.TangentKind:t.attributes.TANGENT=this._accessors.length-1;break;case e.VertexBuffer.UVKind:t.attributes.TEXCOORD_0=this._accessors.length-1;break;case e.VertexBuffer.UV2Kind:t.attributes.TEXCOORD_1=this._accessors.length-1;break;default:e.Tools.Warn("Unsupported Vertex Buffer Type: "+r)}},r.prototype.setPrimitiveAttributes=function(r,a,i){var n,o,s,l=null;a instanceof e.Mesh?l=a:a instanceof e.InstancedMesh&&(l=a.sourceMesh);var u=[{kind:e.VertexBuffer.PositionKind,accessorType:"VEC3",byteStride:12},{kind:e.VertexBuffer.NormalKind,accessorType:"VEC3",byteStride:12},{kind:e.VertexBuffer.ColorKind,accessorType:"VEC4",byteStride:16},{kind:e.VertexBuffer.TangentKind,accessorType:"VEC4",byteStride:16},{kind:e.VertexBuffer.UVKind,accessorType:"VEC2",byteStride:8},{kind:e.VertexBuffer.UV2Kind,accessorType:"VEC2",byteStride:8}];if(l){for(var c=null,h=this.getMeshPrimitiveMode(l),f={},p=0,d=u;p<d.length;p++){var m=d[p],g=m.kind;if(l.isVerticesDataPresent(g)){var y=this.getVertexBufferFromMesh(g,l);m.byteStride=y?4*y.getSize():4*e.VertexBuffer.DeduceStride(g),12===m.byteStride&&(m.accessorType="VEC3"),this.createBufferViewKind(g,a,i,m.byteStride),m.bufferViewIndex=this._bufferViews.length-1,f[g]=m.bufferViewIndex}}if(l.getTotalIndices()){var T=l.getIndices();if(T){var _=4*T.length;n=t._GLTFUtilities.CreateBufferView(0,i.getByteOffset(),_,void 0,"Indices - "+l.name),this._bufferViews.push(n),c=this._bufferViews.length-1;for(var v=0,x=T.length;v<x;++v)i.setUInt32(T[v])}}if(l.subMeshes)for(var A=0,b=l.subMeshes;A<b.length;A++){var F=b[A];o=!1;var M=F.getMaterial(),R=null;if(M)if(l instanceof e.LinesMesh){var S={name:l.name+" material"};(!l.color.equals(e.Color3.White())||l.alpha<1)&&(S.pbrMetallicRoughness={baseColorFactor:l.color.asArray().concat([l.alpha])}),this._materials.push(S),R=this._materials.length-1}else M instanceof e.MultiMaterial?(M=M.subMaterials[F.materialIndex])&&(R=this._materialMap[M.uniqueId]):R=this._materialMap[M.uniqueId];var V=null!=R?this._materials[R]:null,B={attributes:{}};this.setPrimitiveMode(B,h);for(var E=0,C=u;E<C.length;E++){var m=C[E],g=m.kind;if(g!==e.VertexBuffer.UVKind&&g!==e.VertexBuffer.UV2Kind||!V||this._glTFMaterialExporter._hasTexturesPresent(V)){var w=l.getVerticesData(g);if(w){var y=this.getVertexBufferFromMesh(g,l);if(y){var L=y.getSize(),N=m.bufferViewIndex;if(void 0!=N){s={min:null,max:null},g==e.VertexBuffer.PositionKind&&(s=t._GLTFUtilities.CalculateMinMaxPositions(w,0,w.length/L,this._convertToRightHandedSystem));var P=t._GLTFUtilities.CreateAccessor(N,g+" - "+a.name,m.accessorType,5126,w.length/L,0,s.min,s.max);this._accessors.push(P),this.setAttributeKind(B,g),null==B.attributes.TEXCOORD_0&&null==B.attributes.TEXCOORD_1||(o=!0)}}}}}if(c){var P=t._GLTFUtilities.CreateAccessor(c,"indices - "+a.name,"SCALAR",5125,F.indexCount,4*F.indexStart,null,null);this._accessors.push(P),B.indices=this._accessors.length-1}if(null!=R&&Object.keys(B.attributes).length>0){var G=this._babylonScene.materials[R].sideOrientation;if(this._convertToRightHandedSystem&&G===e.Material.ClockWiseSideOrientation){var I=null!=c?this._bufferViews[c].byteOffset:null;null==I&&(I=0);var U=null;if(null!=c&&(U=l.getIndices()),U)this.reorderIndicesBasedOnPrimitiveMode(F,h,U,I,i);else for(var O=0,k=u;O<k.length;O++){var m=k[O],w=l.getVerticesData(m.kind);if(w){var D=this._bufferViews[f[m.kind]].byteOffset;D||(D=0),this.reorderVertexAttributeDataBasedOnPrimitiveMode(F,h,G,m.kind,w,D,i)}}}if(!o&&this._glTFMaterialExporter._hasTexturesPresent(this._materials[R])){var K=this._glTFMaterialExporter._stripTexturesFromMaterial(this._materials[R]);this._materials.push(K),R=this._materials.length-1}B.material=R}r.primitives.push(B)}}},r.prototype.createSceneAsync=function(t,r){var a,i,n,o=this,s={nodes:[]},l=t.transformNodes.concat(t.meshes);return this._glTFMaterialExporter._convertMaterialsToGLTFAsync(t.materials,"image/png",!0).then((function(){o._nodeMap=o.createNodeMapAndAnimations(t,l,o._shouldExportTransformNode,r),o._totalByteLength=r.getByteOffset();for(var u=0,c=l;u<c.length;u++){var h=c[u];if(null!=(a=o._nodeMap[h.uniqueId])&&(i=o._nodes[a],h.parent||(o._shouldExportTransformNode(h)?(o._convertToRightHandedSystem&&(i.translation&&(i.translation[2]*=-1,i.translation[0]*=-1),i.rotation=i.rotation?e.Quaternion.FromArray([0,1,0,0]).multiply(e.Quaternion.FromArray(i.rotation)).asArray():e.Quaternion.FromArray([0,1,0,0]).asArray()),s.nodes.push(a)):e.Tools.Log("Omitting "+h.name+" from scene.")),n=h.getDescendants(!0),!i.children&&n&&n.length)){i.children=[];for(var f=0,p=n;f<p.length;f++){var d=p[f];null!=o._nodeMap[d.uniqueId]&&i.children.push(o._nodeMap[d.uniqueId])}}}s.nodes.length&&o._scenes.push(s)}))},r.prototype.createNodeMapAndAnimations=function(e,r,a,i){for(var n,o,s=this,l={},u={name:"runtime animations",channels:[],samplers:[]},c=[],h=0,f=r;h<f.length;h++){var p=f[h];a(p)?(o=this.createNode(p,i),this._nodes.push(o),n=this._nodes.length-1,l[p.uniqueId]=n,!e.animationGroups.length&&p.animations.length&&t._GLTFAnimation._CreateNodeAnimationFromTransformNodeAnimations(p,u,c,l,this._nodes,i,this._bufferViews,this._accessors,this._convertToRightHandedSystem,this._animationSampleRate)):p.name}return u.channels.length&&u.samplers.length&&this._animations.push(u),c.forEach((function(e){e.channels.length&&e.samplers.length&&s._animations.push(e)})),e.animationGroups.length&&t._GLTFAnimation._CreateNodeAnimationFromAnimationGroups(e,this._animations,l,this._nodes,i,this._bufferViews,this._accessors,this._convertToRightHandedSystem,this._animationSampleRate),l},r.prototype.createNode=function(e,t){var r={},a={primitives:[]};return e.name&&(r.name=e.name),this.setNodeTransformation(r,e),this.setPrimitiveAttributes(a,e,t),a.primitives.length&&(this._meshes.push(a),r.mesh=this._meshes.length-1),r},r})();t._Exporter=r;var a=(function(){function t(e){this._arrayBuffer=new ArrayBuffer(e),this._dataView=new DataView(this._arrayBuffer),this._byteOffset=0}return t.prototype.resizeBuffer=function(e){for(var t=new ArrayBuffer(e),r=new Uint8Array(this._arrayBuffer),a=new Uint8Array(t),i=0,n=a.byteLength;i<n;++i)a[i]=r[i];this._arrayBuffer=t,this._dataView=new DataView(this._arrayBuffer)},t.prototype.getArrayBuffer=function(){return this.resizeBuffer(this.getByteOffset()),this._arrayBuffer},t.prototype.getByteOffset=function(){return this._byteOffset},t.prototype.setUInt8=function(t,r){null!=r?r<this._byteOffset?this._dataView.setUint8(r,t):e.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++,t))},t.prototype.getUInt32=function(t){if(t<this._byteOffset)return this._dataView.getUint32(t,!0);throw e.Tools.Error("BinaryWriter: byteoffset is greater than the current binary buffer length!"),new Error("BinaryWriter: byteoffset is greater than the current binary buffer length!")},t.prototype.getVector3Float32FromRef=function(t,r){r+8>this._byteOffset?e.Tools.Error("BinaryWriter: byteoffset is greater than the current binary buffer length!"):(t.x=this._dataView.getFloat32(r,!0),t.y=this._dataView.getFloat32(r+4,!0),t.z=this._dataView.getFloat32(r+8,!0))},t.prototype.setVector3Float32FromRef=function(t,r){r+8>this._byteOffset?e.Tools.Error("BinaryWriter: byteoffset is greater than the current binary buffer length!"):(this._dataView.setFloat32(r,t.x,!0),this._dataView.setFloat32(r+4,t.y,!0),this._dataView.setFloat32(r+8,t.z,!0))},t.prototype.getVector4Float32FromRef=function(t,r){r+12>this._byteOffset?e.Tools.Error("BinaryWriter: byteoffset is greater than the current binary buffer length!"):(t.x=this._dataView.getFloat32(r,!0),t.y=this._dataView.getFloat32(r+4,!0),t.z=this._dataView.getFloat32(r+8,!0),t.w=this._dataView.getFloat32(r+12,!0))},t.prototype.setVector4Float32FromRef=function(t,r){r+12>this._byteOffset?e.Tools.Error("BinaryWriter: byteoffset is greater than the current binary buffer length!"):(this._dataView.setFloat32(r,t.x,!0),this._dataView.setFloat32(r+4,t.y,!0),this._dataView.setFloat32(r+8,t.z,!0),this._dataView.setFloat32(r+12,t.w,!0))},t.prototype.setFloat32=function(t,r){isNaN(t)&&e.Tools.Error("Invalid data being written!"),null!=r&&(r<this._byteOffset?this._dataView.setFloat32(r,t,!0):e.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,t,!0),this._byteOffset+=4},t.prototype.setUInt32=function(t,r){null!=r?r<this._byteOffset?this._dataView.setUint32(r,t,!0):e.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,t,!0),this._byteOffset+=4)},t})();t._BinaryWriter=a})(e.GLTF2||(e.GLTF2={}))})(BABYLON||(BABYLON={}));var BABYLON;!(function(e){var t=(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 a=this.glTFFiles[t],i=void 0;e(t,".glb")?i={type:"model/gltf-binary"}:e(t,".bin")?i={type:"application/octet-stream"}:e(t,".gltf")?i={type:"model/gltf+json"}:e(t,".jpeg")?i={type:"image/jpeg"}:e(t,".png")&&(i={type:"image/png"}),r.href=window.URL.createObjectURL(new Blob([a],i)),r.click()}},e})();e.GLTFData=t})(BABYLON||(BABYLON={}));var BABYLON;!(function(e){!(function(t){var r=(function(){function t(e){this._textureMap={},this._textureMap={},this._exporter=e}return t.FuzzyEquals=function(t,r,a){return e.Scalar.WithinEpsilon(t.r,r.r,a)&&e.Scalar.WithinEpsilon(t.g,r.g,a)&&e.Scalar.WithinEpsilon(t.b,r.b,a)},t.prototype._convertMaterialsToGLTFAsync=function(t,r,a){for(var i=[],n=0,o=t;n<o.length;n++){var s=o[n];s instanceof e.StandardMaterial?i.push(this._convertStandardMaterialAsync(s,r,a)):s instanceof e.PBRMetallicRoughnessMaterial?i.push(this._convertPBRMetallicRoughnessMaterialAsync(s,r,a)):s instanceof e.PBRMaterial?i.push(this._convertPBRMaterialAsync(s,r,a)):e.Tools.Warn("Unsupported material type: "+s.name)}return Promise.all(i).then((function(){}))},t.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},t.prototype._hasTexturesPresent=function(e){if(e.emissiveTexture||e.normalTexture||e.occlusionTexture)return!0;var t=e.pbrMetallicRoughness;return!(!t||!t.baseColorTexture&&!t.metallicRoughnessTexture)},t.prototype._convertToGLTFPBRMetallicRoughness=function(r){function a(e,t,r,a,i){return(1-e)*(1-e)*(1-e)*t+3*(1-e)*(1-e)*e*r+3*(1-e)*e*e*a+e*e*e*i}var i=new e.Vector2(0,1),n=new e.Vector2(0,.1),o=new e.Vector2(0,.1),s=new e.Vector2(1300,.1),l=r.diffuseColor.toLinearSpace().scale(.5),u=r.alpha,c=e.Scalar.Clamp(r.specularPower,0,t._MaxSpecularPower),h=(function(e){return a(Math.pow(e/s.x,.333333),i.y,n.y,o.y,s.y)})(c);return{baseColorFactor:[l.r,l.g,l.b,u],metallicFactor:0,roughnessFactor:h}},t._SolveMetallic=function(t,r,a){if(r<this._DielectricSpecular.r)return this._DielectricSpecular,0;var i=this._DielectricSpecular.r,n=t*a/(1-this._DielectricSpecular.r)+r-2*this._DielectricSpecular.r,o=this._DielectricSpecular.r-r,s=n*n-4*i*o;return e.Scalar.Clamp((-n+Math.sqrt(s))/(2*i),0,1)},t.prototype._getAlphaMode=function(e){return e.needAlphaBlending()?"BLEND":e.needAlphaTesting()?"MASK":"OPAQUE"},t.prototype._convertStandardMaterialAsync=function(r,a,i){var n=this._exporter._materialMap,o=this._exporter._materials,s=this._getAlphaMode(r),l=[],u=this._convertToGLTFPBRMetallicRoughness(r),c={name:r.name};if(null==r.backFaceCulling||r.backFaceCulling||(r.twoSidedLighting||e.Tools.Warn(r.name+": Back-face culling enabled and two-sided lighting disabled is not supported in glTF."),c.doubleSided=!0),i&&(r.diffuseTexture&&l.push(this._exportTextureAsync(r.diffuseTexture,a).then((function(e){e&&(u.baseColorTexture=e)}))),r.bumpTexture&&l.push(this._exportTextureAsync(r.bumpTexture,a).then((function(e){e&&(c.normalTexture=e,null!=r.bumpTexture&&1!==r.bumpTexture.level&&(c.normalTexture.scale=r.bumpTexture.level))}))),r.emissiveTexture&&(c.emissiveFactor=[1,1,1],l.push(this._exportTextureAsync(r.emissiveTexture,a).then((function(e){e&&(c.emissiveTexture=e)})))),r.ambientTexture&&l.push(this._exportTextureAsync(r.ambientTexture,a).then((function(e){if(e){var t={index:e.index};c.occlusionTexture=t,t.strength=1}})))),(r.alpha<1||r.opacityTexture)&&(r.alphaMode===e.Engine.ALPHA_COMBINE?c.alphaMode="BLEND":e.Tools.Warn(r.name+": glTF 2.0 does not support alpha mode: "+r.alphaMode.toString())),r.emissiveColor&&!t.FuzzyEquals(r.emissiveColor,e.Color3.Black(),t._Epsilon)&&(c.emissiveFactor=r.emissiveColor.asArray()),c.pbrMetallicRoughness=u,"OPAQUE"!==s)switch(s){case"BLEND":c.alphaMode="BLEND";break;case"MASK":c.alphaMode="MASK",c.alphaCutoff=r.alphaCutOff;break;default:e.Tools.Warn("Unsupported alpha mode "+s)}return o.push(c),n[r.uniqueId]=o.length-1,Promise.all(l).then((function(){}))},t.prototype._convertPBRMetallicRoughnessMaterialAsync=function(r,a,i){var n=this._exporter._materialMap,o=this._exporter._materials,s=[],l={};r.baseColor&&(l.baseColorFactor=[r.baseColor.r,r.baseColor.g,r.baseColor.b,r.alpha]),null!=r.metallic&&1!==r.metallic&&(l.metallicFactor=r.metallic),null!=r.roughness&&1!==r.roughness&&(l.roughnessFactor=r.roughness);var u={name:r.name};r.doubleSided&&(u.doubleSided=r.doubleSided);var c=null;return null!=r.transparencyMode&&(c=this._getAlphaMode(r))&&"OPAQUE"!==c&&(u.alphaMode=c,"MASK"===c&&(u.alphaCutoff=r.alphaCutOff)),i&&(null!=r.baseTexture&&s.push(this._exportTextureAsync(r.baseTexture,a).then((function(e){e&&(l.baseColorTexture=e)}))),r.normalTexture&&s.push(this._exportTextureAsync(r.normalTexture,a).then((function(e){e&&(u.normalTexture=e,1!==r.normalTexture.level&&(u.normalTexture.scale=r.normalTexture.level))}))),r.occlusionTexture&&s.push(this._exportTextureAsync(r.occlusionTexture,a).then((function(e){e&&(u.occlusionTexture=e,null!=r.occlusionStrength&&(u.occlusionTexture.strength=r.occlusionStrength))}))),r.emissiveTexture&&s.push(this._exportTextureAsync(r.emissiveTexture,a).then((function(e){e&&(u.emissiveTexture=e)})))),t.FuzzyEquals(r.emissiveColor,e.Color3.Black(),t._Epsilon)&&(u.emissiveFactor=r.emissiveColor.asArray()),u.pbrMetallicRoughness=l,o.push(u),n[r.uniqueId]=o.length-1,Promise.all(s).then((function(){}))},t.prototype._createBase64FromCanvasAsync=function(t,r,a,i){var n=this;return new Promise(function(i,o){var s,l=e.Engine.TEXTURETYPE_UNSIGNED_INT,u=n._exporter._getLocalEngine();s=new e.Scene(u);var c=u.createRawTexture(t,r,a,e.Engine.TEXTUREFORMAT_RGBA,!1,!0,e.Texture.NEAREST_SAMPLINGMODE,null,l),h=new e.PostProcess("pass","pass",null,null,1,null,e.Texture.NEAREST_SAMPLINGMODE,u,!1,void 0,e.Engine.TEXTURETYPE_UNSIGNED_INT,void 0,null,!1);h.getEffect().executeWhenCompiled((function(){h.onApply=function(e){e._bindTexture("textureSampler",c)},u.setSize(r,a),s.postProcessManager.directRender([h],null),h.dispose(),c.dispose();var e=u.getRenderingCanvas();e?e.toBlob((function(e){if(e){var t=new FileReader;t.onload=function(e){var t=e.target.result;s.dispose(),i(t)},t.readAsDataURL(e)}else o("Failed to get blob from image canvas!")})):o("Engine is missing a canvas!")}))})},t.prototype._createWhiteTexture=function(t,r,a){for(var i=new Uint8Array(t*r*4),n=0;n<i.length;n+=4)i[n]=i[n+1]=i[n+2]=i[n+3]=255;return e.RawTexture.CreateRGBATexture(i,t,r,a)},t.prototype._resizeTexturesToSameDimensions=function(t,r,a){var i,n,o=t?t.getSize():{width:0,height:0},s=r?r.getSize():{width:0,height:0};return o.width<s.width?(i=t&&t instanceof e.Texture?e.TextureTools.CreateResizedCopy(t,s.width,s.height,!0):this._createWhiteTexture(s.width,s.height,a),n=r):o.width>s.width?(n=r&&r instanceof e.Texture?e.TextureTools.CreateResizedCopy(r,o.width,o.height,!0):this._createWhiteTexture(o.width,o.height,a),i=t):(i=t,n=r),{texture1:i,texture2:n}},t.prototype._convertSpecularGlossinessTexturesToMetallicRoughnessAsync=function(r,a,i,n){var o=[];if(!r&&!a)return Promise.reject("_ConvertSpecularGlosinessTexturesToMetallicRoughness: diffuse and specular glossiness textures are not defined!");var s=r?r.getScene():a?a.getScene():null;if(s){var l=this._resizeTexturesToSameDimensions(r,a,s),u=l.texture1.getSize(),c=void 0,h=void 0,f=u.width,p=u.height,d=l.texture1.readPixels();if(d instanceof Uint8Array){if(c=l.texture1.readPixels(),(d=l.texture2.readPixels())instanceof Uint8Array){h=l.texture2.readPixels();for(var m=h.byteLength,g=new Uint8Array(m),y=new Uint8Array(m),T=e.Color3.Black(),_=0,v=0,x=0;x<p;++x)for(var A=0;A<f;++A){var b=4*(f*x+A),F=e.Color3.FromInts(c[b],c[b+1],c[b+2]).toLinearSpace().multiply(i.diffuseColor),M=e.Color3.FromInts(h[b],h[b+1],h[b+2]).toLinearSpace().multiply(i.specularColor),R=h[b+3]/255*i.glossiness,S={diffuseColor:F,specularColor:M,glossiness:R},V=this._convertSpecularGlossinessToMetallicRoughness(S);T.r=Math.max(T.r,V.baseColor.r),T.g=Math.max(T.g,V.baseColor.g),T.b=Math.max(T.b,V.baseColor.b),_=Math.max(_,V.metallic),v=Math.max(v,V.roughness),y[b]=255*V.baseColor.r,y[b+1]=255*V.baseColor.g,y[b+2]=255*V.baseColor.b,y[b+3]=l.texture1.hasAlpha?c[b+3]:255,g[b]=0,g[b+1]=255*V.roughness,g[b+2]=255*V.metallic,g[b+3]=255}for(var B={baseColor:T,metallic:_,roughness:v},E=!1,C=!1,x=0;x<p;++x)for(var A=0;A<f;++A){var w=4*(f*x+A);y[w]/=B.baseColor.r>t._Epsilon?B.baseColor.r:1,y[w+1]/=B.baseColor.g>t._Epsilon?B.baseColor.g:1,y[w+2]/=B.baseColor.b>t._Epsilon?B.baseColor.b:1;var L=e.Color3.FromInts(y[w],y[w+1],y[w+2]),N=L.toGammaSpace();y[w]=255*N.r,y[w+1]=255*N.g,y[w+2]=255*N.b,t.FuzzyEquals(N,e.Color3.White(),t._Epsilon)||(C=!0),g[w+1]/=B.roughness>t._Epsilon?B.roughness:1,g[w+2]/=B.metallic>t._Epsilon?B.metallic:1;var P=e.Color3.FromInts(255,g[w+1],g[w+2]);t.FuzzyEquals(P,e.Color3.White(),t._Epsilon)||(E=!0)}if(E){var G=this._createBase64FromCanvasAsync(g,f,p,n).then((function(e){B.metallicRoughnessTextureBase64=e}));o.push(G)}if(C){var G=this._createBase64FromCanvasAsync(y,f,p,n).then((function(e){B.baseColorTextureBase64=e}));o.push(G)}return Promise.all(o).then((function(){return B}))}return Promise.reject("_ConvertSpecularGlossinessTexturesToMetallicRoughness: Pixel array buffer type not supported for texture: "+l.texture2.name)}return Promise.reject("_ConvertSpecularGlossinessTexturesToMetallicRoughness: Pixel array buffer type not supported for texture: "+l.texture1.name)}return Promise.reject("_ConvertSpecularGlossinessTexturesToMetallicRoughness: Scene from textures is missing!")},t.prototype._convertSpecularGlossinessToMetallicRoughness=function(r){
var a=this._getPerceivedBrightness(r.diffuseColor),i=this._getPerceivedBrightness(r.specularColor),n=1-this._getMaxComponent(r.specularColor),o=t._SolveMetallic(a,i,n),s=r.diffuseColor.scale(n/(1-t._DielectricSpecular.r)/Math.max(1-o,t._Epsilon)),l=r.specularColor.subtract(t._DielectricSpecular.scale(1-o)).scale(1/Math.max(o,t._Epsilon)),u=e.Color3.Lerp(s,l,o*o);return u=u.clampToRef(0,1,u),{baseColor:u,metallic:o,roughness:1-r.glossiness}},t.prototype._getPerceivedBrightness=function(e){return e?Math.sqrt(.299*e.r*e.r+.587*e.g*e.g+.114*e.b*e.b):0},t.prototype._getMaxComponent=function(e){return e?Math.max(e.r,Math.max(e.g,e.b)):0},t.prototype._gonvertMetalRoughFactorsToMetallicRoughnessAsync=function(e,t,r,a){var i=[],n={baseColor:e.albedoColor,metallic:e.metallic,roughness:e.roughness};return a&&(e.albedoTexture&&i.push(this._exportTextureAsync(e.albedoTexture,t).then((function(e){e&&(r.baseColorTexture=e)}))),e.metallicTexture&&i.push(this._exportTextureAsync(e.metallicTexture,t).then((function(e){e&&(r.metallicRoughnessTexture=e)})))),Promise.all(i).then((function(){return n}))},t.prototype._getGLTFTextureSampler=function(t){var r=this._getGLTFTextureWrapModesSampler(t),a=t instanceof e.Texture?t.samplingMode:null;if(null!=a)switch(a){case e.Texture.LINEAR_LINEAR:r.magFilter=9729,r.minFilter=9729;break;case e.Texture.LINEAR_NEAREST:r.magFilter=9729,r.minFilter=9728;break;case e.Texture.NEAREST_LINEAR:r.magFilter=9728,r.minFilter=9729;break;case e.Texture.NEAREST_LINEAR_MIPLINEAR:r.magFilter=9728,r.minFilter=9987;break;case e.Texture.NEAREST_NEAREST:r.magFilter=9728,r.minFilter=9728;break;case e.Texture.NEAREST_LINEAR_MIPNEAREST:r.magFilter=9728,r.minFilter=9985;break;case e.Texture.LINEAR_NEAREST_MIPNEAREST:r.magFilter=9729,r.minFilter=9984;break;case e.Texture.LINEAR_NEAREST_MIPLINEAR:r.magFilter=9729,r.minFilter=9986;break;case e.Texture.NEAREST_NEAREST_MIPLINEAR:r.magFilter=9728,r.minFilter=9986;break;case e.Texture.LINEAR_LINEAR_MIPLINEAR:r.magFilter=9729,r.minFilter=9987;break;case e.Texture.LINEAR_LINEAR_MIPNEAREST:r.magFilter=9729,r.minFilter=9985;break;case e.Texture.NEAREST_NEAREST_MIPNEAREST:r.magFilter=9728,r.minFilter=9984}return r},t.prototype._getGLTFTextureWrapMode=function(t){switch(t){case e.Texture.WRAP_ADDRESSMODE:return 10497;case e.Texture.CLAMP_ADDRESSMODE:return 33071;case e.Texture.MIRROR_ADDRESSMODE:return 33648;default:return e.Tools.Error("Unsupported Texture Wrap Mode "+t+"!"),10497}},t.prototype._getGLTFTextureWrapModesSampler=function(t){var r=this._getGLTFTextureWrapMode(t instanceof e.Texture?t.wrapU:e.Texture.WRAP_ADDRESSMODE),a=this._getGLTFTextureWrapMode(t instanceof e.Texture?t.wrapV:e.Texture.WRAP_ADDRESSMODE);return 10497===r&&10497===a?{}:{wrapS:r,wrapT:a}},t.prototype._convertSpecGlossFactorsToMetallicRoughness=function(t,r,a,i){var n=this,o=this._exporter._samplers,s=this._exporter._textures,l={diffuseColor:t.albedoColor||e.Color3.White(),specularColor:t.reflectivityColor||e.Color3.White(),glossiness:t.microSurface||1},u=null,c=this._getGLTFTextureSampler(t.albedoTexture);return null!=c.magFilter&&null!=c.minFilter&&null!=c.wrapS&&null!=c.wrapT&&(o.push(c),u=o.length-1),t.reflectivityTexture&&!t.useMicroSurfaceFromReflectivityMapAlpha?Promise.reject("_ConvertPBRMaterial: Glossiness values not included in the reflectivity texture are currently not supported"):this._convertSpecularGlossinessTexturesToMetallicRoughnessAsync(t.albedoTexture,t.reflectivityTexture,l,r).then((function(e){if(i){if(e.baseColorTextureBase64){var o=n._getTextureInfoFromBase64(e.baseColorTextureBase64,"bjsBaseColorTexture_"+s.length+".png",r,t.albedoTexture?t.albedoTexture.coordinatesIndex:null,u);o&&(a.baseColorTexture=o)}if(e.metallicRoughnessTextureBase64){var c=n._getTextureInfoFromBase64(e.metallicRoughnessTextureBase64,"bjsMetallicRoughnessTexture_"+s.length+".png",r,t.reflectivityTexture?t.reflectivityTexture.coordinatesIndex:null,u);c&&(a.metallicRoughnessTexture=c)}return e}return n._convertSpecularGlossinessToMetallicRoughness(l)}))},t.prototype._convertPBRMaterialAsync=function(e,t,r){var a=this,i={},n={name:e.name};return e.isMetallicWorkflow()?(e.albedoColor&&(i.baseColorFactor=[e.albedoColor.r,e.albedoColor.g,e.albedoColor.b,e.alpha]),this._gonvertMetalRoughFactorsToMetallicRoughnessAsync(e,t,i,r).then((function(o){return a.setMetallicRoughnessPbrMaterial(o,e,n,i,t,r)}))):this._convertSpecGlossFactorsToMetallicRoughness(e,t,i,r).then((function(o){return a.setMetallicRoughnessPbrMaterial(o,e,n,i,t,r)}))},t.prototype.setMetallicRoughnessPbrMaterial=function(r,a,i,n,o,s){var l=this._exporter._materialMap,u=this._exporter._materials,c=[];if(r){var h=null;if(null!=a.transparencyMode&&(h=this._getAlphaMode(a))&&"OPAQUE"!==h&&(i.alphaMode=h,"MASK"===h&&(i.alphaCutoff=a.alphaCutOff)),t.FuzzyEquals(r.baseColor,e.Color3.White(),t._Epsilon)&&a.alpha>=t._Epsilon||(n.baseColorFactor=[r.baseColor.r,r.baseColor.g,r.baseColor.b,a.alpha]),null!=r.metallic&&1!==r.metallic&&(n.metallicFactor=r.metallic),null!=r.roughness&&1!==r.roughness&&(n.roughnessFactor=r.roughness),null==a.backFaceCulling||a.backFaceCulling||(a.twoSidedLighting||e.Tools.Warn(a.name+": Back-face culling enabled and two-sided lighting disabled is not supported in glTF."),i.doubleSided=!0),s){if(a.bumpTexture){var f=this._exportTextureAsync(a.bumpTexture,o).then((function(e){e&&(i.normalTexture=e,1!==a.bumpTexture.level&&(i.normalTexture.scale=a.bumpTexture.level))}));c.push(f)}if(a.ambientTexture){var f=this._exportTextureAsync(a.ambientTexture,o).then((function(e){if(e){var t={index:e.index};i.occlusionTexture=t,a.ambientTextureStrength&&(t.strength=a.ambientTextureStrength)}}));c.push(f)}if(a.emissiveTexture){var f=this._exportTextureAsync(a.emissiveTexture,o).then((function(e){e&&(i.emissiveTexture=e)}));c.push(f)}}t.FuzzyEquals(a.emissiveColor,e.Color3.Black(),t._Epsilon)||(i.emissiveFactor=a.emissiveColor.asArray()),i.pbrMetallicRoughness=n,u.push(i),l[a.uniqueId]=u.length-1}return Promise.all(c).then((function(e){}))},t.prototype.getPixelsFromTexture=function(t){return t.textureType,e.Engine.TEXTURETYPE_UNSIGNED_INT,t.readPixels()},t.prototype._exportTextureAsync=function(e,t){var r=this;return Promise.resolve().then((function(){var a=e.uid;if(a in r._textureMap)return 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if(h===e.Animation.ANIMATIONTYPE_FLOAT){if(c=this._ConvertFactorToVector3OrQuaternion(r.value,o,a,h,n,s,l)){if("rotation"===n){var d=l?c:e.Quaternion.RotationYawPitchRoll(c.y,c.x,c.z).normalize();s&&(t._GLTFUtilities.GetRightHandedQuaternionFromRef(d),o.parent||(d=e.Quaternion.FromArray([0,1,0,0]).multiply(d))),i.push(d.asArray())}else"translation"===n&&s&&(t._GLTFUtilities.GetRightHandedNormalVector3FromRef(c),o.parent||(c.x*=-1,c.z*=-1));i.push(c.asArray())}}else h===e.Animation.ANIMATIONTYPE_QUATERNION?(u=r.value.normalize().asArray(),s&&(t._GLTFUtilities.GetRightHandedQuaternionArrayFromRef(u),o.parent||(u=e.Quaternion.FromArray([0,1,0,0]).multiply(e.Quaternion.FromArray(u)).asArray())),i.push(u)):e.Tools.Error("glTFAnimation: Unsupported key frame values for animation!")},a._DeduceInterpolation=function(t,r,a){var i,n,o=!1;if("rotation"===r&&!a)return{interpolationType:"LINEAR",shouldBakeAnimation:!0};for(var s=0,l=t.length;s<l;++s)if(n=t[s],n.inTangent||n.outTangent)if(i){if("CUBICSPLINE"!==i){i="LINEAR",o=!0;break}}else i="CUBICSPLINE";else if(i){if("CUBICSPLINE"===i||n.interpolation&&n.interpolation===e.AnimationKeyInterpolation.STEP&&"STEP"!==i){i="LINEAR",o=!0;break}}else i=n.interpolation&&n.interpolation===e.AnimationKeyInterpolation.STEP?"STEP":"LINEAR";return i||(i="LINEAR"),{interpolationType:i,shouldBakeAnimation:o}},a.AddSplineTangent=function(a,i,n,o,s,l,u,c,h){var f,p=i===r.INTANGENT?l.inTangent:l.outTangent;if("CUBICSPLINE"===s){if("rotation"===o)if(p){if(c)f=p.scale(u).asArray();else{var d=p.scale(u);f=e.Quaternion.RotationYawPitchRoll(d.y,d.x,d.z).asArray()}h&&(t._GLTFUtilities.GetRightHandedQuaternionArrayFromRef(f),a.parent||(f=e.Quaternion.FromArray([0,1,0,0]).multiply(e.Quaternion.FromArray(f)).asArray()))}else f=[0,0,0,0];else p?(f=p.scale(u).asArray(),h&&"translation"===o&&(t._GLTFUtilities.GetRightHandedPositionArray3FromRef(f),a.parent||(f[0]*=-1,f[2]*=-1))):f=[0,0,0];n.push(f)}},a.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}},a})();t._GLTFAnimation=a})(e.GLTF2||(e.GLTF2={}))})(BABYLON||(BABYLON={}));var BABYLON;!(function(e){!(function(t){var r=(function(){function t(){}return t.CreateBufferView=function(e,t,r,a,i){var n={buffer:e,byteLength:r};return t&&(n.byteOffset=t),i&&(n.name=i),a&&(n.byteStride=a),n},t.CreateAccessor=function(e,t,r,a,i,n,o,s){var l={name:t,bufferView:e,componentType:a,count:i,type:r};return null!=o&&(l.min=o),null!=s&&(l.max=s),null!=n&&(l.byteOffset=n),l},t.CalculateMinMaxPositions=function(r,a,i,n){var o,s,l,u=[1/0,1/0,1/0],c=[-1/0,-1/0,-1/0];if(i)for(var h=a,f=a+i;h<f;++h){o=3*h,s=e.Vector3.FromArray(r,o),n&&t.GetRightHandedPositionVector3FromRef(s),l=s.asArray();for(var 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