# Frustum

视锥体，用于视锥剔除。

**头文件：** `#include <XCEngine/Math/Frustum.h>`

**命名空间：** `XCEngine::Math`

## 类定义

```cpp
class Frustum {
public:
    Plane planes[6];

    enum class PlaneIndex {
        Left = 0,
        Right = 1,
        Bottom = 2,
        Top = 3,
        Near = 4,
        Far = 5
    };

    bool Contains(const Vector3& point) const;
    bool Contains(const Sphere& sphere) const;
    bool Contains(const Bounds& bounds) const;
    bool Intersects(const Bounds& bounds) const;
    bool Intersects(const Sphere& sphere) const;
};
```

## 实例方法

| 方法 | 返回值 | 描述 |
|------|--------|------|
| [Contains(point)](contains-point.md) | `bool` | 点是否在视锥内 |
| [Contains(sphere)](contains-sphere.md) | `bool` | 球体是否完全在视锥内 |
| [Contains(bounds)](contains-bounds.md) | `bool` | Bounds 是否完全在视锥内 |
| [Intersects(bounds)](intersects-bounds.md) | `bool` | Bounds 是否与视锥相交 |
| [Intersects(sphere)](intersects-sphere.md) | `bool` | 球体是否与视锥相交 |

## 相关文档

- [Math 模块总览](../math.md) - 返回 Math 模块总览