麻豆淫院

(麻豆淫院Org.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 computer 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鈥檚 Department of Computer Science, have developed a program that will let the computer 鈥渨atch鈥� 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 鈥済row鈥� lots more trees that are all slightly different.

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

鈥淚t 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.

鈥淲ith our system, the user can produce new trees 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!鈥�

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

鈥淚n the future we want to use this same technique to animate other objects like clouds, water, fire and smoke.鈥�