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diff --git a/examples/vulkan/hellovulkancubes/camera.cpp b/examples/vulkan/hellovulkancubes/camera.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "camera.h"
+
+Camera::Camera(const QVector3D &pos)
+    : m_forward(0.0f, 0.0f, -1.0f),
+      m_right(1.0f, 0.0f, 0.0f),
+      m_up(0.0f, 1.0f, 0.0f),
+      m_pos(pos),
+      m_yaw(0.0f),
+      m_pitch(0.0f)
+{
+}
+
+static inline void clamp360(float *v)
+{
+    if (*v > 360.0f)
+        *v -= 360.0f;
+    if (*v < -360.0f)
+        *v += 360.0f;
+}
+
+void Camera::yaw(float degrees)
+{
+    m_yaw += degrees;
+    clamp360(&m_yaw);
+    m_yawMatrix.setToIdentity();
+    m_yawMatrix.rotate(m_yaw, 0, 1, 0);
+
+    QMatrix4x4 rotMat = m_pitchMatrix * m_yawMatrix;
+    m_forward = (QVector4D(0.0f, 0.0f, -1.0f, 0.0f) * rotMat).toVector3D();
+    m_right = (QVector4D(1.0f, 0.0f, 0.0f, 0.0f) * rotMat).toVector3D();
+}
+
+void Camera::pitch(float degrees)
+{
+    m_pitch += degrees;
+    clamp360(&m_pitch);
+    m_pitchMatrix.setToIdentity();
+    m_pitchMatrix.rotate(m_pitch, 1, 0, 0);
+
+    QMatrix4x4 rotMat = m_pitchMatrix * m_yawMatrix;
+    m_forward = (QVector4D(0.0f, 0.0f, -1.0f, 0.0f) * rotMat).toVector3D();
+    m_up = (QVector4D(0.0f, 1.0f, 0.0f, 0.0f) * rotMat).toVector3D();
+}
+
+void Camera::walk(float amount)
+{
+    m_pos[0] += amount * m_forward.x();
+    m_pos[2] += amount * m_forward.z();
+}
+
+void Camera::strafe(float amount)
+{
+    m_pos[0] += amount * m_right.x();
+    m_pos[2] += amount * m_right.z();
+}
+
+QMatrix4x4 Camera::viewMatrix() const
+{
+    QMatrix4x4 m = m_pitchMatrix * m_yawMatrix;
+    m.translate(-m_pos);
+    return m;
+}