27 lines
540 B
Markdown
27 lines
540 B
Markdown
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# Material::UpdateConstantBuffer
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```cpp
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void UpdateConstantBuffer()
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```
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更新材质常量缓冲区。将所有属性值打包到常量缓冲区的二进制数据中，供 GPU 着色器使用。
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**参数：** 无
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**返回：** 无
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**复杂度：** O(n)，n 为属性数量
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**示例：**
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```cpp
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mat->SetFloat("roughness", 0.5f);
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mat->SetFloat3("albedo", Math::Vector3(1.0f, 0.8f, 0.6f));
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mat->UpdateConstantBuffer();
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auto cbData = mat->GetConstantBufferData();
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```
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## 相关文档
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- [Material 总览](material.md) - 返回类总览
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