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XCEngine/docs/api/rhi/d3d12/buffer/initialize.md
ssdfasd dc850d7739 docs: 重构 API 文档结构并修正源码准确性
- 重组文档目录结构: 每个模块的概述页移动到模块子目录
- 重命名 index.md 为 main.md
- 修正所有模块文档中的错误:
  - math: FromEuler→FromEulerAngles, TransformDirection 包含缩放, Box 是 OBB, Color::ToRGBA 格式
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  - resources: 修复 Shader/Texture 链接错误
  - threading: TaskSystem::Wait 空实现标注, ReadWriteLock 重入描述, LambdaTask 链接
- 验证: fix_links.py 确认 0 个断裂引用
2026-03-19 00:22:30 +08:00

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# D3D12Buffer::Initialize
## 函数签名
```cpp
bool Initialize(ID3D12Device* device, uint64_t size, D3D12_RESOURCE_STATES initialState = D3D12_RESOURCE_STATE_COMMON, D3D12_HEAP_TYPE heapType = D3D12_HEAP_TYPE_DEFAULT)
```
## 中文描述
创建新缓冲区,分配 D3D12 显存资源。
## 参数
| 参数 | 类型 | 描述 |
|------|------|------|
| `device` | `ID3D12Device*` | D3D12 设备指针 |
| `size` | `uint64_t` | 缓冲区大小(字节) |
| `initialState` | `D3D12_RESOURCE_STATES` | 初始资源状态(默认 COMMON |
| `heapType` | `D3D12_HEAP_TYPE` | 堆类型DEFAULT默认、UPLOAD上传、READBACK回读 |
## 返回值
`bool` - 初始化是否成功
## 复杂度
O(n) - 取决于缓冲区大小
## 示例
```cpp
D3D12Buffer vertexBuffer;
vertexBuffer.Initialize(
device->GetDevice(),
sizeof(Vertex) * vertexCount,
D3D12_RESOURCE_STATE_VERTEX_AND_CONSTANT_BUFFER,
D3D12_HEAP_TYPE_DEFAULT);
```