Here are the classes, structs, unions and interfaces with brief descriptions:

[detail level 12]

Ui
MainWindow
Settings
AppMain	The main class of Molecule Viewer Renderer
Atom	Class representing a single Atom of a Molecule (an Atom is drawn as a colored sphere)
Camera	Class representing the camera in the scene, a perspective projection is used
Directions	This class maintains the directions used for the ambient occlusion computation
Light	Class representing the main light in the scene, which is a point light source!
Loader	Class responsible for loading a molecule
MainWindow	The main window of the QT Viewer
SceneObject	Scene Object is the base class for all objects in the scene (Camera, Light and Molecule)
Shader	Represents a shader program
Ui_MainWindow
Ui_Settings
Widget	QT OpenGL Widget where the molecule is rendered inside