How to tell if tile loading has finished?

[cxcxcxcx]

From https://www.npmjs.com/package/@jdultra/threedtiles , I see there is callback onLoadCallback after the first tile is loaded. Is there a way to tell if everything in the view has finished loading?

[ebeaufay]

No, but that's actually planned for the coming weeks together with an alternate strategy for loading tiles (skipping intermediate LODs).

I'll notify and close this issue when it's done.

[ebeaufay]

hi, I've already added the functionality to the "threedtiles" library, I hadn't noticed you were using "ultraglobe".
If you're interested, you can check that lib for a preview.

Nevertheless, it's coming.. so there will be a callback telling you things like how many tiles are loaded and the percentage of load.
You'll also have a choice in loading strategy for 3DTiles and google. "incremental" is as it is now while "immediate" skips all the intermediate LODs which is faster, uses less memory but holes can appear when the camera changes.

[ebeaufay]

Ok it's added in v4.4.0

details are in the doc but basically when you instantiate a OGC3DTilesLayer, you can do this:

var ogc3dTiles = new OGC3DTilesLayer({
...,
loadingStrategy: "IMMEDIATE",
updateCallback: (stats)=>console.log(stats)
});

the "stats" object will contain a few properties including percentage loaded.
"loadingStrategy" is optional and if set to "IMMEDIATE" will skip intermediate LODs and be generally lighter on memory.