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加载模型后,我希望能够旋转它并在它周围放置点。
如果有一种解决方法,比如将其转换为 3D MAX 然后加载它也会很好,尽管我很高兴不这样做。
很简单,这是文件格式规范。小心 ASCII 和二进制类型。
http://en.wikipedia.org/wiki/STL_(file_format )
关于旋转,寻找一个轨迹球实现,像这样:
http://www.cse.ohio-state.edu/~crawfis/Graphics/VirtualTrackball.html