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docs/api/math/vector3/reflect.md

@@ -0,0 +1,23 @@
+# Vector3::Reflect
+
+```cpp
+static Vector3 Reflect(const Vector3& inDirection, const Vector3& inNormal)
+```
+
+计算向量关于法线的反射方向。
+
+**参数：**
+- `inDirection` - 入射方向向量
+- `inNormal` - 反射表面的法线（应为单位向量）
+
+**返回：** `Vector3` - 反射方向
+
+**复杂度：** O(1)
+
+**示例：**
+
+```cpp
+Vector3 incoming(1.0f, -1.0f, 0.0f);
+Vector3 normal(0.0f, 1.0f, 0.0f);
+Vector3 reflected = Vector3::Reflect(incoming, normal);  // (1, 1, 0)
+```