openGL 基于八叉树的图形编程，计算机图形学作业-openGL based on octree graphics programming, computer graphics work

空间八叉树，用opengl实现，测试样例为一个空间八面体，用不同的角度及片元显示-Octree space, using opengl to achieve, test sample for a space octahedron, with different angles and the film element shows

首先，对输入的点云模型进行八叉树分解。然后，用局部函数对八叉树节点包围球进行拟合。最后，利用加权函数构建全局隐函数，表达整个点云模型代表的曲面。 -First of all, the point cloud model to the input of the octree decomposition. Then, by fitting the octree node bounding sphere with local function. Finally, a global implicit