How to select a node in gltf

How can gltf achieve this effect of 3dTiles, or how can it achieve the move in effect
https://sandcastle.cesium.com/?src=3D%20Tiles%20Feature%20Picking.html

Hi @lvfeijian,

While we have support for outlines on glTF models, I don’t believe there is currently any way to apply silhouette post processing to individual glTF nodes out-of-the-box.

You may be able to implement a custom post-processing effect that meets your needs.