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About ansheng

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  1. I'm going to develop the NC machining program that simulates the cutting process in NC machine. So, I attempted the program by OpenCSG library, and by Octree method. But the program developed by OpenCSG is very slow when the number of object is much more than 3000, and the octree program doesn't operate well.   I knew that there are two method to simulate the large scene such as octree method and BSP method, but I don't know how implements it. What method is most appropriate to my project? And where can I find the references about that method. Sample code and references.  
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