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Fixed discrepancies between source code and documentation: - AsyncLoader: Document Initialize() ignores workerThreadCount, Submit() doesn't do actual async loading, Update() is stub - ResourceManager: Document UnloadUnused() and ReloadResource() are stubs - ResourceCache: Document OnZeroRefCount() and Flush() are stubs - ResourceDependencyGraph: Document TopologicalSort() returns empty (stub) - ResourceFileSystem: Document GetResourceInfo() doesn't fill modifiedTime, EnumerateResources() is stub - FileArchive: Document Enumerate() is stub - ResourcePackageBuilder: Document AddDirectory() is stub - ImportSettings: Document LoadFromJSON/SaveToJSON are stubs - TextureImportSettings/MeshImportSettings: Document JSON methods are stubs - TextureLoader/MeshLoader/MaterialLoader/ShaderLoader/AudioLoader: Document GetDefaultSettings() returns nullptr - AudioLoader: Document ParseWAVData() is stub, Load() doesn't parse WAV headers - ShaderLoader: Document DetectShaderType/ParseShaderSource are stubs - MaterialLoader: Document ParseMaterialData() is stub - Texture: Document Create() mipLevels=0 behavior, GenerateMipmaps() returns false - Mesh: Document MeshLoader::Load() is example only - IResourceLoader: Document GetDefaultSettings() returns nullptr for all loaders
44 lines
1.2 KiB
Markdown
44 lines
1.2 KiB
Markdown
# AABB / OBB
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轴对齐包围盒 (AABB) 和有向包围盒 (OBB)。
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**头文件：** `#include <XCEngine/Math/AABB.h>`
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**命名空间：** `XCEngine::Math`
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## AABB
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`AABB` 在 Math 库中通过 `Bounds` 类型实现，参见 [./bounds/bounds.md](../bounds/bounds.md)。
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## OBB - 有向包围盒
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OBB 是可以任意方向旋转的包围盒。
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```cpp
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struct OBB {
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Vector3 center;
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Vector3 extents;
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Matrix4 transform;
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};
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```
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### 构造函数
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- `OBB()` - 默认构造
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- `OBB(const Vector3& center, const Vector3& extents)` - 从中心和半长构造
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### 实例方法
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| 方法 | 返回值 | 描述 |
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|------|--------|------|
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| [GetAxis(index)](getaxis.md) | `Vector3` | 获取局部轴（index 必须是 0、1 或 2） |
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| [GetMin()](../box/getmin.md) | `Vector3` | 局部空间最小点 |
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| [GetMax()](../box/getmax.md) | `Vector3` | 局部空间最大点 |
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| [Contains(point)](../box/contains.md) | `bool` | 点是否在 OBB 内 |
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| [Intersects(OBB)](intersects-obb.md) | `bool` | 与另一个 OBB 相交 |
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| [Intersects(Sphere)](intersects-sphere.md) | `bool` | 与球体相交 |
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## 相关文档
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- [Math 模块总览](../math.md) - 返回 Math 模块总览
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