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XCSDD/docs/api/math/vector4/tovector3.md
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Vector4::ToVector3

Vector3 ToVector3() const

将 Vector4 转换为 Vector3丢弃 w 分量。

返回: Vector3 - 转换后的 Vector3 (x, y, z)

复杂度: O(1)

示例:

Vector4 pos4(1.0f, 2.0f, 3.0f, 1.0f);
Vector3 pos3 = pos4.ToVector3();  // (1, 2, 3)