Computer mimics nature by watching TV (w/ Video)

Jan 28, 2010
The software can "grow" different types of trees, each one unique

(PhysOrg.com) -- Computer scientists at the University of Bath have developed a new way of making life-like animations of trees using video footage of the real thing.

This technique could be used by animators and games designers to automatically generate realistic trees that move in a natural way.

Most computer games and animations have a static background, or use a large team of animators to painstakingly draw each tree individually.

Dr Peter Hall and Chris Li, of the University’s Department of Computer Science, have developed a program that will let the computer “watch” video footage of a tree to enable it to make computer-animations that mimic the way branches and leaves move in the wind.

The user simply has to draw around the tree outline in the first frame of the video. The program then makes a model of the tree and tracks how the leaves and branches move in the video.

It then uses algorithms to copy this movement and can use this information to “grow” lots more trees that are all slightly different.

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Dr Hall explained: “Rendering trees has always been a headache for animators. Trees move in irregular ways, and it’s very hard to achieve natural-looking movement.

“It is so expensive that traditional animation often uses static trees - except in big-budget films. In computer graphics, tree models are just as hard to produce.

“With our system, the user can produce new of the same variety, with each one an individual. We can also very finely control the movement of the tree for different weather conditions, different seasons, and can even make it dance to music!”

Chris Li, who is developing this software as part of his PhD at Bath, said: “Our system will make it faster and cheaper for animators to create animated backgrounds.

“In the future we want to use this same technique to animate other objects like clouds, water, fire and smoke.”

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User comments : 3

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Parsec
4 / 5 (2) Jan 28, 2010
I would love to see this added to my favoriote 3D games (darkfall, shaiya, WoW, Eq2, etc.). I wonder what type of model data is generated and how hard that data would be to interface with the 3D rendering engines on the market. This looks like a big time money making opportunity for someone that could incorporate it into a 3D rendering engine that game designers could use as a basic rendering platform.
jimbo92107
5 / 5 (1) Jan 28, 2010
Wow! What about the movement of man?


Exactly. If you can sample a tree, why not a walrus and a man? Then they could be morphed into man-rus!

Sadly, that's the only combination that would work...
eli2k
not rated yet Jan 29, 2010
it will be integrated into the next crytek game engine :)

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