Secondly, the paper analyses the function and characteristic of other several typical three-dimensional techniques, such as: OpenGL, Microsoft Direct3D and virtual reality modeling language VRML, and it compares them with the three-dimensional techniques.

• 其次，研究了其它几个典型的三维开发技术的功能和特点，如：OpenGL、Microsoft Direct3D以及虚拟现实建模语言VRML，并将它们与Java 3D技术作了比较；