docs: 更新 resources, rhi, scene 模块及新增 camera-component 方法文档
- resources: 更新 asyncloader, audioclip, mesh-import-settings, texture-loader 文档 - rhi: 更新 opengl render-target-view 文档 - components: 新增 camera-component 全部方法文档 (15个文件)
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# GetOrthographicSize
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**所属类**: `CameraComponent`
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**头文件**: `XCEngine/Components/CameraComponent.h`
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**描述**: 获取摄像机的正交投影大小(仅在正交投影模式下有效)。
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## 函数签名
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```cpp
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float GetOrthographicSize() const;
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```
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## 返回值
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| 类型 | 描述 |
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|------|------|
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| `float` | 正交投影大小,默认值为 5.0 |
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## 使用示例
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```cpp
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#include <XCEngine/Components/CameraComponent.h>
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using namespace XCEngine::Components;
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void PrintOrthoSize(CameraComponent* camera) {
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float size = camera->GetOrthographicSize();
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printf("Orthographic size: %.2f\n", size);
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}
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```
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## 相关文档
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- [CameraComponent](camera-component.md) - 摄像机组件
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- [SetOrthographicSize](set-orthographic-size.md) - 设置正交大小
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