tileUnload

The event fired to indicate that a tile's content was unloaded.

The unloaded Cesium3DTile is passed to the event listener.

This event is fired immediately before the tile's content is unloaded while the frame is being rendered so that the event listener has access to the tile's content. Do not create or modify Cesium entities or primitives during the event listener.

tileset.tileUnload.addEventListener(function(tile) {
    console.log('A tile was unloaded from the cache.');
});

See also