use class for camera handling,

orbit does not work. Need to figure out why

QtMeshViewer/Source/FreeCamera.cpp

@@ -0,0 +1,53 @@
+#include "..\Header\FreeCamera.h"
+#include <QVector2D>
+#include <QVector3D>
+#include <QQuaternion>
+
+
+/////////////////////////////////////////////////////////////////////////
+// constructor/destructor
+
+FreeCamera::FreeCamera()
+{
+	resetView();
+}
+
+FreeCamera::~FreeCamera()
+{
+
+}
+
+
+/////////////////////////////////////////////////////////////////////////
+// functions
+
+void FreeCamera::rotateAction(QVector2D diff)
+{
+	m_rotation = QQuaternion::fromAxisAndAngle(QVector3D(diff.y(), diff.x(), 0.0).normalized(), diff.length() * 0.5) * m_rotation;
+}
+
+void FreeCamera::moveAction(QVector2D diff)
+{
+	m_translation += {(float)(diff.x() * 0.01), (float)(diff.y() * -0.01), 0.0};
+}
+
+void FreeCamera::wheelAction(double value)
+{
+	m_translation += {0.0, 0.0, (float) (m_zSpeed * value / 240)};
+}
+
+void FreeCamera::recalculateMatrix()
+{
+	m_matrix = QMatrix4x4();
+
+	m_matrix.translate(m_translation);
+	m_matrix.rotate(m_rotation);
+}
+
+void FreeCamera::resetView()
+{
+	m_translation = { 0, 0, -4 };
+	m_rotation = QQuaternion();
+
+	CameraInterface::resetView();
+}