Hi @dwbcxy886,
In the cesium case scene, after the character is moved far away from the birth point (world origin), the model will jitter. I don’t know how to solve it? can you help
If the character is moving far away from the world origin, you’ll probably have to attach a CesiumOriginShift component to the character. Every time the character moves, this component will move the CesiumGeoreference origin to the globe-relative position of the character – meaning that your character stays at the same place on the globe, but the Unity origin will follow it. This should reduce the jittering that you see.
You can also adjust the Distance property to make this behavior happen at less frequent intervals. Let us know if this solves your issue 
我知道咋处理这个问题了，感谢！简单说就是人不动，地球动。
Sorry that I missed your previous posts @dwbcxy886, I meant to respond but then was out for a U.S. holiday break. But I’m glad to hear that you resolved your issue!
没关系，美国度假一定是个美好快乐的事情吧。也可以来中国武汉度假，请你吃这里的土特产，热干面，武昌鱼…