Cesium Practical Combat - Frustum Implementation

When implementing video projection, I came into contact with the optic cone, but the research was not thorough.

Later, I saw someone in the group who wanted to see the optic cone effect and the implementation process online, so I gave it a try.

This article containsView frustum core code, complete code and online examplesthree parts.

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Vertebra core code

// 定义创建四棱锥类
function CreateFrustum(options) {
   
    
    
    // 位置点
    this.position