Terrain

// Create
const viewer = new Viewer("cesiumContainer", {
  terrain: new Terrain(CesiumTerrainProvider.fromUrl("https://myTestTerrain.com"));
});

// Handle loading events
const terrain = new Terrain(CesiumTerrainProvider.fromUrl("https://myTestTerrain.com"));

scene.setTerrain(terrain);

terrain.readyEvent.addEventListener(provider => {
  scene.globe.enableLighting = true;

  terrain.provider.errorEvent.addEventListener(error => {
    alert(`Encountered an error while loading terrain tiles! ${error}`);
  });
});

terrain.errorEvent.addEventListener(error => {
  alert(`Encountered an error while creating terrain! ${error}`);
});