Method and apparatus for mapping texture onto 3-dimensional object model

Abstract

The present invention provides a method and apparatus for mapping texture onto a 3-dimensional (3D) object model. The method includes converting object model data, in which at least one object is modeled, into object model data of a predetermined view point, generating raster graphics data expressing the texture of the object by data in pixel units based on vector graphics data expressing the texture of the object in a geometrical equation, and mapping the texture formed of the generated raster graphics data onto an object model expressed by the converted object model data. By using the method, the amount of resources and operations are low, and thus various effects can be realized which could not be realized due to a limit in processing speed. Accordingly, an appearance of reality of a 3D image can be remarkably improved.

Description

[0001] Cross references to related patent applications [0002] This application claims priority to Korean Patent Application No. 10-2007-0033779 filed in the Korean Intellectual Property Office on Apr. 5, 2007, the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] Methods and apparatus consistent with the present invention relate to mapping textures to three-dimensional (3D) object models, and, more particularly, to methods and apparatus to map two-dimensional (2D) textures to 3D object models. Background technique [0004] Recently, with the increase in the processing capability of processors and the development of three-dimensional engines, demands for three-dimensional image display in various devices have increased. Three-dimensional image display is required not only in high-spec personal computers (PCs) such as workstations, but also in devices with displays such as televisions (TVs), portable media players (PMPs), MP3 p...

AI Technical Summary

Problems solved by technology

[0005] A 3D model is formed by a combination of polygons, and when the texture of the 3D model is expressed by using only the color of the polygons, the appearance of the 3D model becomes less realistic

However, in this way, when the number of pre-prepared texture pages is small, it is difficult to obtain smooth animation, while smooth animation is not possible when using textures until the overall size of the texture increases and thus uses a large resource. , the overall processing speed decreases

Moreover, using the method of expressing animation effects by mapping a large-scale texture onto a 3D model and then rotating or moving the mapped texture, it is difficult to avoid monotony because the preset texture is only continuously repeated, so it is difficult to deal with realistic 3D image of

[0008] Therefore, the above methods are difficult to apply to 3D images because a large amount of resources and operations are required to represent a realistic appearance in real time

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