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XCEngine/docs/api/math/frustum/contains-point.md
ssdfasd b414bc5326 refactor(docs): Fix broken links across multiple modules
Fixed broken references:
- texture-import-settings: Fix 16 files referencing wrong overview filename
- math/rectint: Fix 9 method links (rectint-* → get*, contains, intersects)
- rhi/opengl/device: Fix 8 cross-references (opengl-* → */**)
- resources/mesh: Fix meshsection and vertexattribute links
- rhi/d3d12/sampler: Fix RHISampler reference path
- math/vector3: Fix projectonplane → project-on-plane
- rhi/opengl/command-list: Remove broken ClearFlag enum ref
- rhi/opengl/device: Create 2 new method docs (MakeContextCurrent, GetNativeContext)
- rhi/device: Fix device-info types reference

All 0 broken references remaining.
2026-03-26 02:41:00 +08:00

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Frustum::Contains

bool Contains(const Vector3& point) const

检测世界空间中的点是否完全位于视锥体内。判断方式为:依次计算该点到 6 个裁剪平面的有符号距离,若任意一个距离小于 0则点位于该平面外侧视锥体不包含该点。

参数:

  • point - 要检测的世界空间三维点

返回: bool - 点完全在视锥内返回 true,否则返回 false

线程安全: (只读操作,不修改状态)

复杂度: O(6),即遍历 6 个裁剪平面

示例:

#include <XCEngine/Core/Math/Frustum.h>
#include <XCEngine/Core/Math/Vector3.h>

void CheckPointInFrustum(const Frustum& frustum, const Vector3& point) {
    if (frustum.Contains(point)) {
        // 点完全在视锥内
    }
}

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