tileUnload on Cesium3DTileset never triggert

CesiumJS
1

Hello,

for me the event tileUnload will never triggert. Why?

Also interesting for me, that tileVisible will be triggert every time, also if nothing new is loading. Is there a event which triggert once for every tile?

this.tileset = new Cesium.Cesium3DTileset({
    url: this.url,
    maximumScreenSpaceError: 8
});

this.tileset.tileUnload.addEventListener(function (a, b, c) {
}.bind(this));

2

sorry for that post. I now see - after much moves - that it will be triggerd

3

By default Cesium stores a cache of 256 tiles before any are unloaded, which explains that behavior. This value can be tweaked by setting tileset.maximumNumberOfLoadedTiles.