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When birds fly, the shape and the movement of the wings will be ever-changing because of the special structure of feathers and the resistance of air. If we dig into the principles of flight from scientific aspects, it will be so intricate and obscure that we just mention it briefly. In this study, it will mainly conclude the external structure of wings, flying method, and the movement mode, trying to simulate the movement of flying wings by 3D softwares. In fact, the movement of the wings was formed by the rotating of bones and the twisting of feathers, hence, we can use the skeleton module to set and produce simulation. In the producing process, we would refer to commands under the two modules of Polygons and Animation of MAYA, outlining their functions and usage briefly. And then we used these tools to build the model and the skeleton of birds, recording the producing process and generalizing the key points to help us find out the problems, so that we could discuss and make improvement of it. Finally, we will manipulate the skeleton by using the controller to simulate the flying movement of birds in the film, and then sum up the main points and recommendations of the skeleton-producing animation.
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