bvh动画载入源代码，bvh动画演示，里面有现成的bvh文件，和bvh载入的运行程序-bvh animation loading code, bvh animation, which has ready-made bvh files, and run the program loaded bvh

层次包围盒技术，实现光线追踪和碰撞检测的一个加速方法-BVH is a accelerate method to implement the ray tracing