Cant fit two glb files together

In the below code, I am trying to load another glb mesh into the first glb box, but its second mesh is too large to fit into, result in you can once you mouse scroll out on the below link.

I’m not sure your PG match what you are saying: I can’t see a second glb loading?

What is the problem with the PG you linked?

zoom out so you can understand, my first it left inside the second glb file,

There is a single glb file loaded in the PG, cornellBox.glb.

If your problem is the flickering of the ground, that’s because the call to createDefaultEnvironment creates a ground at the exact same location than the box ground. You can offset the ground to avoid this problem: