Doo-sabin细分曲面源码，通过载入obj文件，对物体进行多次细分，并显示每次细分所花费的时间，文件中带有多个obj文件。程序正确无误，是我的应用几何造型作业。-Doo-sabin subdivision surface source, through the load obj file, several segments of the objects and displays the time spent in each segment, the file with multiple ob