OpenGL显示3DS模型若干问题的研究

Research on Some Problems in Displaying 3DS Model with OpenGL

根据OpenGL进行三维显示的处理过程和3DS文件中三维模型的数据组织结构,说明了如何从3DS文件得到OpenGL显示所需的数据。讨论了OpenGL显示三维物体时法线向量的作用,给出了一种高效的法线向量求解方法,该方法比现有方法的速度快一至两个数量级。最后讨论了如何利用3DS文件中的关键帧数据正确地显示带动画信息的模型。

The way to get OpenGL data from 3DS file is introduced based on OpenGL display process and 3DS file data organization.After discussing the function of normal vector in OpenGL,a new method to find normal vectors from 3DS data is given,and this new method is tenfold faster than existing one.The usage of key frame data in 3DS file is given so that the objects in 3DS file can be displayed on their right positions.