实现了简单几何场景的光线跟踪。几何体主要是球，也可添加其他几何体。-The simple geometric scene ray tracing. Geometry primarily balls, can also be added to other geometry.

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This progr