How to add tianditu layer to sceneView？

[devilsbibble]

• js 4.10

• WebTileLayer.createSubclass

• code:
  let TiandituWMTSLayer = WebTileLayer.createSubclass({
  declaredClass: "TiandituWMTSLayer",
  getDefaults:function (b) {
  var sp = new SpatialReference({
  "wkid": 4326
  });
  var c = new Extent(-180, -90, 180, 90, sp);
  return{
  fullExtent: c,
  tileInfo: new TileInfo({
  rows: 256,
  cols: 256,
  dpi: 300,
  format: "PNG32",
  compressionQuality: 0,
  origin: new Point({x: -180, y: 90, spatialReference: sp}),
  spatialReference: sp,
  lods: [
  new LOD({level: 1, resolution: 0.703125, scale: 295497593.05875003}),
  new LOD({level: 2, resolution: 0.3515625, scale: 147748796.52937502}),
  new LOD({level: 3, resolution: 0.17578125, scale: 73874398.264687508}),
  new LOD({level: 4, resolution: 0.087890625, scale: 36937199.132343754}),
  new LOD({level: 5, resolution: 0.0439453125, scale: 18468599.566171877}),
  new LOD({level: 6, resolution: 0.02197265625, scale: 9234299.7830859385}),
  new LOD({level: 7, resolution: 0.010986328125, scale: 4617149.8915429693}),
  new LOD({level: 8, resolution: 0.0054931640625, scale: 2308574.9457714846}),
  new LOD({level: 9, resolution: 0.00274658203125, scale: 1154287.4728857423}),
  new LOD({level: 10, resolution: 0.001373291015625, scale: 577143.73644287116}),
  new LOD({level: 11, resolution: 0.0006866455078125, scale: 288571.86822143558}),
  new LOD({level: 12, resolution: 0.00034332275390625, scale: 144285.93411071779}),
  new LOD({level: 13, resolution: 0.000171661376953125, scale: 72142.967055358895}),
  new LOD({level: 14, resolution: 8.58306884765625e-005, scale: 36071.483527679447}),
  new LOD({level: 15, resolution: 4.291534423828125e-005, scale: 18035.741763839724}),
  new LOD({level: 16, resolution: 2.1457672119140625e-005, scale: 9017.8708819198619}),
  new LOD({level: 17, resolution: 1.0728836059570313e-005, scale: 4508.9354409599309}),
  new LOD({level: 18, resolution: 5.3644180297851563e-006, scale: 2254.4677204799655}),
  new LOD({level: 19, resolution: 2.6822090148925781e-006, scale: 1127.2338602399827}),
  new LOD({level: 20, resolution: 1.3411045074462891e-006, scale: 563.61693011999137})
  ]
  })
  }
  },
  getTileUrl(level, row, col) {
  let url = 'http://t' + col % 8 + '.tianditu.cn/' + this.wmtslayer + '_c/wmts?' +
  'SERVICE=WMTS&REQUEST=GetTile&VERSION=1.0.0&LAYER=' + this.wmtslayer +
  '&STYLE=default&TILEMATRIXSET=c&TILEMATRIX=' +
  level + '&TILEROW=' + row + '&TILECOL=' + col + '&FORMAT=tiles';
  return url;
  }
  });
  var options1 = {
  id: "tianDiTu_img",
  visible: true,
  wmtslayer: "img",
  layerType:'img',
  "urlTemplate": "not null",
  };
  var layer2 = new TiandituWMTSLayer(options1);
  var view3d = new SceneView({
  map: map,
  center: [110.1, 23.8],
  zoom: 2,
  spatialReference: {
  wkid: 102100
  },
  container: "mapDiv3D"
  });

• error:
  message: "The tiling scheme of this layer is not supported by SceneView"
  name: "layerview:tiling-scheme-unsupported"

[devilsbibble]

Therer is a sample,include tianditu layer,sample

[mvdbster]

@lisastaehli should we also add the WebTileLayer type to the layer loader?