Three-dimensional file format system and reading method

Abstract

The invention relates to a three-dimensional file format system and a reading method. The three-dimensional file format system comprises a file header module, a Node information module and a user-defined information module, and is characterized in that the file header module is used for storing file marks, version numbers and basic information of the user-defined information module; the Node information module is used for storing ordered tree structures of formatted files, node names, node layers and connection relations between nodes; and the user-defined information module is used for storing model structure information, texture information, animation effect information, map information, light source information and view angle information. According to the format, classification processing is firstly performed on the same data in three-dimensional model files, then compression processing is performed on each category of data respectively to obtain compressed information blocks, the information blocks are arranged according to an ordered tree structure, so that a circumstance of data confusion can be prevented, the space occupied by the files is significantly reduced, and the compression effect is improved by nearly 10 times compared with the existing obj format.

Description

Technical field [0001] The present invention relates to the field of three-dimensional model information processing, and in particular to a three-dimensional model file format and reading method. Background technique [0002] The 3D model file format is a format for recording and storing 3D model information. To store, process, and disseminate 3D models, a certain image format must be used, that is, the 3D model is organized and stored in a certain way, and the 3D model data is stored. File, you get the 3D model file. The file format of the three-dimensional model determines what type of information should be stored in the file, in which form the information is stored, how the file is compatible with various application software, and how the file exchanges data with other files. [0003] Currently, there are various 3D model file formats on the market. Common model formats include obj, stl, fbx, etc. In addition, there are many proprietary formats, such as Discreet's 3D editing so...

AI Technical Summary

Problems solved by technology

However, due to the particularity of 3D model files, all 3D model file formats have the following problems: 1) occupy a large storage space; 2) consume a lot of memory to open; 3) must use special software to open; 4) cannot cross-platform display, especially in mobile and web browsers

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