There are several scenes where the camera revolves around one of the characters. In each of these scenes the background came from F.E.A.R. while ther character was done in WoW Model Viewer.

The scenes where the lead singer and Animia Everfrost are in the middle of a ring of flames were relatively easy.

In F.E.A.R. there are a couple of levels where you find yourself in an imaginary room filled with fire and smoke where demonic spirits emerge from the flames to chase after you. I just recorded myself looking around in a slow and controlled manner. Since the flames were at relatively the same height I could just record the singer and revolve him about his central axis. This would make it look like the ring of fire is far enough out that the camera can pan around the singer without getting burned. I just had to adjust the playback speed of the singer spinning until it matched the speed of the ring of fire. Since it was shot looking relatively straight on and you couldn't see his feet the effect was easy to pull off.

However, the scene in the parking lot where the undead is snacking on a victim and the camera pans around him was the most difficult thing to do in the video. I spent almost four hours on that few seconds of footage alone.

There were a few challenges with this scene. First of all, it isn't shot head-on like the one above. The camera is pointed downwards towards the carcass. Secondly, unlike the previous one where I just sat in one place and spun around while recording to capture the ring of fire, I actually had to circle-strafe the camera. Circle-strafing is used in first-person-shooters to move in a circle around an opponent while keeping the opponent in your crosshairs. The challenge was to circle-strafe and end up exactly where you started. As I found out, minor nuances in the game engines, and varying rates of changes of the x-axis made it very difficult.

Once I successfully did it I had to record the Undead in WoW Model Viewer at the same camera angle and then rotate him about his central axis. Again, this turned out to be more difficult than I had anticipated.

Once that was done it was time to composite the two together. With some tweaking of the playback speed of each I finally got it as well as I could get it. If you watch that scene closely you will see that they don't exactly completely revolve at the same rate but they end at the same position that they started. Overall, I am very happy with the effect.