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XCEngine/docs/api/math/matrix4/inverse.md
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Matrix4x4::Inverse

Matrix4x4 Inverse() const

返回矩阵的逆矩阵。如果矩阵的行列式接近零(不可逆),则返回单位矩阵。

参数: (无)

返回: 逆矩阵;如果矩阵不可逆则返回单位矩阵

线程安全:

复杂度: O(n³),对于 4x4 矩阵固定为 64 次基本运算

示例:

#include "XCEngine/Core/Math/Matrix4.h"

using namespace XCEngine::Math;

Matrix4 transform = Matrix4::TRS(
    Vector3(1.0f, 2.0f, 3.0f),
    Quaternion::FromEuler(0.0f, 45.0f, 0.0f),
    Vector3(2.0f, 2.0f, 2.0f)
);

Matrix4 inv = transform.Inverse();
Matrix4 identity = transform * inv;
// identity 接近单位矩阵

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