Files
XCEngine/docs/api/math/frustum/contains-bounds.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

1.2 KiB
Raw Blame History

Frustum::Contains

bool Contains(const Bounds& bounds) const

检测轴对齐包围盒Axis-Aligned Bounding BoxAABB是否完全位于视锥体内。判断方式为先取出 Bounds 的 8 个顶点坐标,然后对每个裁剪平面,检查所有 8 个顶点是否都在该平面外侧(距离小于 0。若存在某个平面使得全部 8 个顶点都在其外侧,则包围盒完全在视锥外;否则认为包围盒至少部分在视锥内。

参数:

  • bounds - 要检测的轴对齐包围盒

返回: bool - Bounds 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(48),即遍历 6 个平面 × 8 个顶点

示例:

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

void CheckBoundsInFrustum(const Frustum& frustum, const Bounds& bounds) {
    if (frustum.Contains(bounds)) {
        // 包围盒完全在视锥内,必须渲染
        Render();
    }
}

相关文档