wait for gltf to load before applying materials

Is scene loaded does not appear to solve this problem. The puzzle will return true when the gltf is in memory but this can be long before the gltf is visible in the browser especially with respect to mobile devices.

This is even more complicated if your combined files start to get near the 50MB limits of the browser and you need to force things out of memory during a load.

Assuming you are not in that situation,
You can use a full screen preloader or effect such as blur to hide the effects of the scene building in the background until your materials downloaded and gltf responds as loaded via the “when loaded do”

Basically you are just putting a html screen in front of the app until everything is done.

Adding time for a process like waiting on a gltf or material to load often leads to varying results by users equipment, internet download speed, device type .. etc. I recommend throttling performance in chrome developer mode to make sure you give enough time.

That sounds good…going to give that a few tests.

UPDATE: I tried this out. In my testing ( I look forward to someone else giving it a test). The promise returns true when the scene or requested item is loaded in memory…not when its visible and in scene within the browser window.

So on small textures or gltfs…you cant really tell. Load in something very large with complex reflections, etc…and it fires way before the scene is loaded in my testing.