What's a Skybox?
A Skybox is a 360-degree orb that transforms your environment. You can turn any 360-degree photo into a Skybox using the following steps.
To make a 360 orb:
1. Download this .zip file, which contains a .jpg texture, .glTF model, and a .bin file.
2. Unzip the file and replace the texture.jpeg file with your own 360 image.
NOTE: To ensure the files import correctly into the GLB Packer tool (see step 3) do not change the sample file names. You can rename the GLB file once it gets exported from the GLB Packer tool.
3. Drag all three files simultaneously (Spatial Skybox Sample.gltf, Spatial Skybox Sample_data.bin, texture.jpeg) into http://glb-packer.glitch.me/ to make a glb file that can be uploaded.
4. If you want to use an image that isn't a jpeg, you will have to open scene.gltf and at line 126 there is "uri": "texture.jpeg" which can be replaced with a .png image.
Learn about setting a Skybox as your Custom Environment here.