I used importMeshAsync to import a GLTF file into the scene, and it seems that all the models imported by this method are of type AbstractMesh. In this case, I tried to export the scene to a .babylon format using SceneSerializer. However, the exported file contains geometry information, but the meshes array is empty.
I found that the mesh objects I created separately can be recognized and exported by SceneSerializer to JSON, but AbstractMesh objects cannot. How can I convert AbstractMesh to Mesh, or how can I configure SceneSerializer to recognize AbstractMesh? I checked the documentation but couldn’t find relevant information.
Running this playground will immediately download a scene.json file. Inside, you’ll find that the meshes value only contains the newly created plane, while the imported model is missing.
Thanks!