本程序为计算机图形学大作业，是针对计算机图形学课程的作业练习。最终的结果包括能绘制基本图元、样条曲线、分形图形、真实感三维物体。-The procedure for the computer graphics major operations, computer graphics courses for job training. The final results include the ability to draw primitives, spline curves, fractal gr