{: Sample screen-saver for GLScene using TScreenSaver. I've kept the OpenGL stuff to a minimum here, the saver is just animating a cube on your screen, with 3 colored dancing light source. All movements are handled through Inertia behaviours and the Cadencer, this is why you won't find any animation code here :). This saver has two forms : this one is the main saver screen, Form2 is the properties screen (adjust torus tesselation). Apart from dropping a TScreenSaver on Form1 and handling OnpropertiesRequested to display Form2, I did these things :