Understanding the Mesh Export settings:

As a part of the Mesh export process, sdk will search through all the gameObjects in the scene which falls under the selected search filter category (tag and/or layerMask) and then it will combine all the gameObjects containing mesh renderer, skinned mesh renderer and terrain into a .glb file.

.glb file will include two gameObjects - CombinedMesh and Treasured Map gameObjects.

Options:

Use Tag - If enabled, it will export the gameObjects containing the specified tag.

Use LayerMask - If enabled, it will export the gameObjects ,containing the specified Layers.

Keep Combined Mesh - [Used for debugging purpose] If enabled, the copy of the combined mesh will be stored in the current Scene’s CombinedMesh gameObject after exporting the .glb file. If there’s any active terrain in the scene then, the terrain will be exported as an .obj file under the Assets/Resources folder. If option is disabled then, the copy of the combined mesh will not be stored in the Scene. However, the exported .glb can be tested through online viewer https://gltf.pmnd.rs/

Notes:

• If the gameObject is disabled in the scene then, the mesh associated with that gameObject

will not be exported.

• If there are no extra mesh components in the scene lingering outside of the scene to export then, only use the filter tag and select the default tag Untagged so that all the mesh are exported.
• Avoid exporting Trees, as there are hundreds of individual tree leaves and exporting those will result in increasing the .glb mesh file.
• Make sure that there’s only one active terrain in the scene and create the terrains only till the users are allowed to explore in the scene. Extra terrains can increase the .glb mesh file.