Cesium actual combat - OD communication line - mobile connection line

In the project, after the satellite communication line was implemented, there was a new requirement. The communication line needed to move according to the movement of the rocket, which was equivalent to a tracking effect. After thinking about it, it CallbackPropertywas implemented through Entity.

It is actually implemented through custom material classes and shader code.。

This article containsMobile connection core code, complete code and online examplesthree parts.

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OD communication line - core code of mobile connection line

// 获取火箭模型实体
const entity = dataSource.entities.getById(