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41 lines
1009 B
Markdown
41 lines
1009 B
Markdown
# D3D12RootSignature::CreateDescriptorTable
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## 函数签名
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```cpp
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static D3D12_ROOT_PARAMETER CreateDescriptorTable(uint32_t numRanges, const D3D12_DESCRIPTOR_RANGE* ranges, ShaderVisibility visibility = ShaderVisibility::All)
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```
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## 中文描述
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创建描述符表根参数。
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## 参数
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| 参数 | 类型 | 描述 |
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|------|------|------|
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| `numRanges` | `uint32_t` | 描述符范围数量 |
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| `ranges` | `D3D12_DESCRIPTOR_RANGE*` | 描述符范围数组 |
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| `visibility` | `ShaderVisibility` | 可见性（默认 All） |
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## 返回值
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`D3D12_ROOT_PARAMETER` - 根参数
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## 复杂度
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O(1)
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## 示例
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```cpp
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D3D12_DESCRIPTOR_RANGE ranges[1];
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ranges[0] = D3D12RootSignature::CreateDescriptorRange(D3D12_DESCRIPTOR_RANGE_TYPE_SRV, 0, 1);
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D3D12_ROOT_PARAMETER descTable = D3D12RootSignature::CreateDescriptorTable(1, ranges);
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```
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## 相关文档
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- [D3D12RootSignature](root-signature.md) - 类总览
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- [D3D12RootSignature::CreateDescriptorRange](create-descriptor-range.md) - 创建描述符范围
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