43 lines
1019 B
Markdown
43 lines
1019 B
Markdown
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# D3D12Sampler::GetDesc
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## 函数签名
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```cpp
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D3D12_SAMPLER_DESC GetDesc() const
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```
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## 描述
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获取 D3D12 采样器的描述符结构。该描述符包含了采样器的所有配置信息，包括过滤模式、寻址模式和细节级别等。
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## 返回值
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`D3D12_SAMPLER_DESC` - 采样器描述符的副本，包含以下配置：
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| 字段 | 描述 |
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|------|------|
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| `Filter` | 过滤模式（线性、点采样、各向异性等） |
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| `AddressU/V/W` | UVW 三个方向的寻址模式 |
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| `MipLODBias` | Mip 级别偏移 |
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| `MaxAnisotropy` | 最大各向异性级别 |
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| `ComparisonFunc` | 比较函数 |
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| `BorderColor` | 边界颜色 |
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| `MinLOD/MaxLOD` | Mip 级别范围 |
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## 示例
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```cpp
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D3D12Sampler sampler;
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// ... 初始化 sampler ...
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D3D12_SAMPLER_DESC desc = sampler.GetDesc();
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if (desc.Filter == D3D12_FILTER_MIN_MAG_MIP_LINEAR) {
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// 使用线性过滤
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}
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```
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## 相关文档
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- [D3D12Sampler::Initialize](initialize.md) - 初始化采样器
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- [D3D12Sampler](sampler.md) - 类总览
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