This is an applet example.
1000 stars are distributed in a sphere. The viewpoint circles around the sphere and creates the impression of a rotating sphere.
Activate the star panel by clicking it. Rolling the mouse wheel changes the viewpoint distance. Rolling the mouse wheel while pressing the right mouse button changes the star brightness.
Dragging the mouse moves the viewpoint. A fast drag gives the camera an appropriate angular momentum.
You can easily experiment with other parameters by starting the webstart version or by downloading the program and running the common java program.
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