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Computer Graphics

Invisible Cloak

Technology
Invisible Cloak
Thursday, November 15, 2007
2 Comments :: Article Rating :: Computer Graphics, Gadgets, Mechanical Engineering
You are walking around in the ruins trying to be careful not to create too much dust. After all, you don’t want to give your position away. The situation is critical. The enemy is coming towards you in droves and you need to get out of here to get yourself back to the base. You were part of an advance reconnaissance team on a top secret mission. The last thing you want is to let the enemy know you where here. It will lead to all sorts of political issues. You are wearing the latest gadget the military has acquired; the Invisible Cloak. It is almost a privilege to wear it. It effectively makes you transparent, much like the good old Predator movie. You can’t believe they actually made it. But here it is and you are wearing it. The module that comes with it is rather bulky, and makes you twice as large, but at least they won’t be able to see you …

Invisibility has been our dream for a long time and as demonstrated in many movies and work of fiction such as ‘The Invisible Man’ by H. G. Wells, it can be put to good use or it can be abused.

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Exergaming

Technology
Exergaming
Monday, November 12, 2007
0 Comments :: Article Rating :: Health, Computer Graphics, Gadgets, Human-Machine Interface

Finally, you swing around your axe, spin around yourself and bang. The monster is dead! Wooh! You are breathless. That required lots of complicated manoeuvres. You had to fight the monster five times before you could take it down. Your heart rate is up and you are panting. You need to rest a bit. This game is so cool. You drink some water. Right! You are ready for more. You resume your walk in the jungle. You hear some noises. Suddenly, you see two orcs approaching you from left. Ok, this time you need to kill them both at once…

Exergaming is a combination of exercising and gaming. The game creates an environment for you that is entertaining and motivates you do perform fitness-related exercises usually using dedicated hardware interfaces.

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Ultra-Realistic Animations

Technology
Ultra-Realistic Animations
Saturday, November 3, 2007
5 Comments :: Article Rating :: Computer Graphics, Psychology, Media

You are watching a video with your mouth half open. You simply cannot believe what your see. How is it possible that the prime minister of Britain would say such a thing? It is so politically incorrect; that he might as well shot himself in the public.

Two days later, it is revealed that the footage is fake and it’s been produced by ‘Invincible Animators’ who created the video using 3D animations and morphing techniques to achieve the result. This immediately leads to lots of conspiracy theories on the net that suggest the Prime Minister actually said those words and this is just a cover up trying to convince the world that this never happened. Everyone is amazed and you start to wonder how can you trust a video source now? After all it can be faked again.

The above scenario is perhaps a dark side of this technology, though there are many lighter sides to this too. Ever since 3D animation industry was conceived, the holly grail was to make a photorealistic animation that looked like it had been filmed from a real scene in the world. The industry has come a long way since it’s inception as it can be seen in special effects produced by Hollywood. We are still a few years away from getting the holly grail, but we are advancing quickly.

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Virtual Robotics

Technology
Virtual Robotics
Sunday, October 28, 2007
0 Comments :: Article Rating :: Artifical Intelligence, Computer Graphics, Robotics

You bump into a pretty girl on your way to Mount Blue. She has a very nice body with exotic flowing dress which dances on her body as she moves. She has caught your attention. You decide to say hi. She responds and you start a casual chit chat with her. She seems very nice. Her name is Red Roosa. You are already thinking about changing your plans. She seems very friendly and very relaxed. You ask her if she is interested to go to a Night Club you have recently discovered. It’s new and is quite flashy. They have these new interactive dance routines which means you can influence the dance for the group as a whole. Mmmmm, going with her should be fun. You take her there, and well, you go for a dance. It’s incredible. She is really a nice person. The dance heats up and you are just wondering what to do next. Anything is possible …

Now, imagine if suddenly someone who was also in the dance club sent you an instant message saying “Not to ruin your night or anything, but did you know Red Roosa is a bot?”

You reply only to him, so that Red Roosa can’t see your chat, “Oh really! I didn’t know. Ok, well, thanks for letting me know.” You get back to her and carry on from where you were as if nothing has changed …

Avatars in a virtual world usually represent a person. However, an avatar can also be driven by an artificial intelligence. This is what the guy was referring to when he said she is a bot (robot).

A bot in a virtual world can look like any other and may prove to be more difficult to differentiate with real humans. Interaction between virtual robots and humans will become more complex and commonplace as virtual worlds become mainstream.

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Virtual Retinal Display

Technology
Virtual Retinal Display
Thursday, October 25, 2007
0 Comments :: Article Rating :: Computer Graphics, Gadgets, Mechanical Engineering, Electronics Engineering, Human-Machine Interface

You were still in wonder of the latest gadget you were wearing. It’s a lot lighter than your current head-mounted-display, but that’s not what has impressed you most. It’s the clarity! Everything looks so natural. You can see overlaid computer generated visuals even at the periphery of your eyes. It’s as if the overlaid features belong to the scene. The effect is even more noticeable as you move your head around. With your head-mounted-display you could only see objects when they entered the display in front of your eyes as you looked towards them and you always struggled with focus. Despite great advances since the early days, it seemed they still couldn’t get the hang of it. But now, this retinal display was such a joy to use.

Virtual retinal display works by drawing a laser raster display directly on your retina. You get to see a conventional display in front of your eyes with a large field of view. If carried out accurately, you won’t be able to tell the difference from what you see normally. Ultimately, there will be no edges, no flicker, no sense of looking at a computer display.

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