44 lines
999 B
Markdown
44 lines
999 B
Markdown
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# Matrix4x4::operator*
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```cpp
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Matrix4x4 operator*(const Matrix4x4& other) const
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Vector4 operator*(const Vector4& v) const
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```
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两个重载分别用于矩阵与矩阵乘法，以及矩阵与四维向量的乘法。
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**参数（矩阵乘法）：**
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- `other` - 右侧矩阵
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**参数（向量乘法）：**
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- `v` - 四维向量
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**返回：**
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- 矩阵乘法：结果矩阵
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- 向量乘法：变换后的四维向量
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**线程安全：** ✅
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**复杂度：** O(n²) - 矩阵乘法为 O(4³)，向量乘法为 O(4)
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**示例：**
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```cpp
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#include "XCEngine/Math/Matrix4.h"
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#include "XCEngine/Math/Vector4.h"
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using namespace XCEngine::Math;
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Matrix4 m1 = Matrix4::RotationY(1.0f);
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Matrix4 m2 = Matrix4::Translation(Vector3(1.0f, 0.0f, 0.0f));
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Matrix4 combined = m1 * m2;
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Vector4 v(1.0f, 0.0f, 0.0f, 1.0f);
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Vector4 transformed = m1 * v;
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```
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## 相关文档
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- [Matrix4](matrix4.md) - 返回类总览
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- [MultiplyPoint](multiplypoint.md) - 点变换
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- [MultiplyVector](multiplyvector.md) - 向量变换
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