Johnny finds he needs a favor from a friend in cyberspace. We see Johnny type something on his virtual keyboard, then selects from a pull down menu.
A quick break in the action: In this shot we are looking at the real world, not the virtual, and I want to mention how clear and well-defined all the physical actions by actor Keanu Reeves are. I very much doubt that the headset he is wearing actually worked, so he is doing this without being able to see anything.
Will regular users of virtual reality systems be this precise with their gestures? Datagloves have always been expensive and rare, making studies difficult. But several systems offer submillimeter gestural tracking nowadays: version 2 of Microsoft Kinect, Google’s Soli, and Leap Motion are a few, and much cheaper and less fragile than a dataglove. Using any of these for regular desktop application tasks rather than games would be an interesting experiment.
Back in the film, Johnny flies through cyberspace until he finds the bulletin board of his friend. It is an unfriendly glowing shape that Johnny tries to expand or unfold without success.
With a ghost ensconced in a trap, the next step in ghostbusting is to transfer the trap to a containment unit. Let’s look at the interaction.
The containment unit is a large device built into a wall of the old firehouse that serves as the Ghostbusters headquarters. It’s painted a fire-truck red and has two colored bulbs above it. As they approach, the green bulb is lit. It’s got a number of buttons, levers, and cables extending into it. Fortunately for purposes of discussion, Stantz has to explain it to their new employee Winston Zeddmore, and I can just quote him.
“This is where we store all the vapors, entities, and slimers that we trap. Very simple, really. Loaded trap here. Unlock the system…” He grabs the red door lever and cranks it counterclockwise 90 degrees and lowers the door to reveal a slot for the trap.
“Insert the trap,” he continues, and a sucking sound is heard and the green lightbulb goes off and the red lightbulb turns on.