////  Mat4.h//  libraries/script-engine/src////  Created by Anthony Thibault on 3/7/16.//  Copyright 2016 High Fidelity, Inc.////  Scriptable 4x4 Matrix class library.////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html// #ifndef hifi_Mat4_h#define hifi_Mat4_h #include <QObject>#include <QString> /// Scriptable Mat4 object.  Used exclusively in the JavaScript APIclass Mat4 : public QObject {    Q_OBJECT public slots:    glm::mat4 multiply(const glm::mat4& m1, const glm::mat4& m2) const;    glm::mat4 createFromRotAndTrans(const glm::quat& rot, const glm::vec3& trans) const;    glm::mat4 createFromScaleRotAndTrans(const glm::vec3& scale, const glm::quat& rot, const glm::vec3& trans) const;     glm::vec3 extractTranslation(const glm::mat4& m) const;    glm::quat extractRotation(const glm::mat4& m) const;    glm::vec3 extractScale(const glm::mat4& m) const;     glm::vec3 transformPoint(const glm::mat4& m, const glm::vec3& point) const;    glm::vec3 transformVector(const glm::mat4& m, const glm::vec3& vector) const;     glm::mat4 inverse(const glm::mat4& m) const;     glm::vec3 getFront(const glm::mat4& m) const;    glm::vec3 getRight(const glm::mat4& m) const;    glm::vec3 getUp(const glm::mat4& m) const;     void print(const QString& label, const glm::mat4& m) const;}; #endif // hifi_Mat4_h