Cyberspace: Bulletin Board

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.

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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.

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After some more virtual typing, the bulletin board reveals itself as a cube that spins and expands. It doesn’t fill the entire screen, but does reveal the face of Strike, the owner of the bulletin board. His face is stylized as if by a real time image processing filter of the type built into most static image editors today. Strike tells Johnny to go away.

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Johnny doesn’t give up and the conversation continues. The cube now expands to fill the screen, with Johnny looking into the cube and Strike’s face on the back wall.

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Johnny raises his hands and makes a threatening gesture, saying that he could crash Strike’s entire system. In cyberspace, his fingertips now have blades.

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The face retreats in cyberspace, becoming smaller and further away. I’d like to think that Strike leaned back, and that has been mapped into a cyberspace equivalent move. The real world gesture carries its meaning to cyberspace.

A short while ago the Yakuza leader Shinji ordered the tracker to “initiate the virus.” It is at this point that we see the effect, with the cube carrying the image of Strike melting away under a bright light.

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While visual representations of cyber attacks are common in books and now TV and films, real world computer designers complain that no system under attack would waste processing power on rendering special effects. This is true for the defenders, but the attackers might want to show their power with a flashy display. Or perhaps these visual effects are generated by Johnny’s own cyberspace system, the 2021 equivalent of today’s warning message that a web site certificate cannot be verified. It’s certainly more attention-grabbing than a small padlock icon disappearing from one corner of your browser window.

At this point the Yakuza arrive in reality, and Jane takes the headset off and drags Johnny out of the shop.

 

Cyberspace: Beijing Hotel

After selecting its location from a map, Johnny is now in front of the virtual entrance to the hotel. The virtual Beijing has a new color scheme, mostly orange with some red.

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The “entrance” is another tetrahedral shape made from geometric blocks. It is actually another numeric keypad. Johnny taps the blocks to enter a sequence of numbers.

The tetrahedral keypad

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Note that there can be more than one digit within a block. I mentioned earlier that it can be difficult to “press” with precision in virtual reality due to the lack of tactile feedback. Looking closely, here the fingers of Johnny’s “hands” cast a shadow on the pyramid, making depth perception easier. Continue reading