This is BrainLog, a blog by Dan Sanderson. Older entries, from October 1999 through September 2010, are preserved for posterity, but are no longer maintained. See the front page and newer entries.

March 2, 2010

The making of the 1980s HBO intro:

Even at the time it never occurred to me that none of these effects were "digital" in any sense. Even the colored lights that sweep around the O in "HBO" are actual colored lights that sweep around in front of a camera. Also check out the computer driving the camera.