Method for compressing animation scene files
A scene file and animation technology, applied in the field of animation scene file compression
Active Publication Date: 2015-04-22
北京中科盘古科技发展有限公司
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[0004] Because in the production of scene files, only objects within the effective shooting range of the camera can be rendered and generated. Therefore, the objects in the scene file are only valid if they are included in the effective shooting range of the camera. Objects outside the range are invalid for the film
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[0085] see Figure 4 , Figure 5 According to a method for compressing animation scene files of the present invention, a three-dimensional scene is compressed for a specific shot. Figure 4 It is an uncompressed 3D scene, containing a total of 1,316,223 patches, and the scene file size is 148M; Figure 5 The compressed 3D scene contains a total of 100780 patches, the scene file size is 11M, and the compression ratio is 7%. From the comparison of the two pictures, the 3D scene using this method can fully guarantee high-quality rendering.
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The invention discloses a method for compressing animation scene files. During a progress when three-dimensional animation scenes are made by using maya, the finally generated scenes usually comprise a large number of useless historical nodes due to repeatability of a production cycle and uneven ability of production staffs, as a result, scene files are so large that the scenes are very inconvenient to store and use. According to the method for compressing animation scene files disclosed by the invention, by calculating a projection range of a scene camera, models which are not in the projection range can be deleted on a basis that necessary models and animation curves for the scene are kept, so that the size of the scene files can be compressed greatly.
Description
technical field [0001] The invention belongs to the field of computer animation and relates to application technologies such as calculating projection geometry, and proposes a method for compressing animation scene files aiming at the problem of large capacity of scene files produced by Maya. Background technique [0002] In the process of 3D animation production, scene files need to be frequently opened, manipulated and saved. Due to the repetitiveness of the animation production cycle and the unevenness of the production staff's ability, the final generated scene usually contains a large number of useless historical nodes, resulting in too large scene files, which brings great inconvenience to scene preservation and use. [0003] The traditional method of compressing scene files is mainly by clearing historical nodes in the scene and independent nodes in the hypergraph (not connected to any other nodes), but compressing the scene according to this method, the obtained comp...
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IPC IPC(8): G06T13/20
Inventor 于海涛沈文
Owner 北京中科盘古科技发展有限公司
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