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XCEngine/docs/api/math/transform/inverse.md
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Transform::Inverse

Transform Inverse() const;

返回当前变换的逆变换。逆变换满足 transform * transform.Inverse() == Identity()

计算方式:

  • 旋转取反:先计算旋转的逆(四元数共轭)
  • 缩放送原:取倒数
  • 位置:将原点相对于当前点的偏移,经逆旋转和逆缩放后取反

参数:

返回: Transform - 当前变换的逆变换

线程安全: (无锁,非线程安全)

复杂度: O(1)

示例:

#include "XCEngine/Core/Math/Transform.h"
#include "XCEngine/Core/Math/Vector3.h"

using namespace XCEngine::Math;

void InverseExample() {
    Transform transform;
    transform.position = Vector3(10.0f, 0.0f, 0.0f);
    transform.rotation = Quaternion::Identity();
    transform.scale = Vector3(2.0f, 2.0f, 2.0f);

    Transform inverse = transform.Inverse();

    Transform identity = transform * inverse;
}

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