19 lines
304 B
Markdown
19 lines
304 B
Markdown
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# Vector4::ToVector3
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```cpp
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Vector3 ToVector3() const
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```
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将 Vector4 转换为 Vector3，丢弃 w 分量。
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**返回：** `Vector3` - 转换后的 Vector3 (x, y, z)
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**复杂度：** O(1)
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**示例：**
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```cpp
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Vector4 pos4(1.0f, 2.0f, 3.0f, 1.0f);
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Vector3 pos3 = pos4.ToVector3(); // (1, 2, 3)
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```
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