用于对球面晶体的X射线衍射成像的光线追迹模拟，可以仿真自发辐射成像，背光成像，以及荧光成像。(Ray tracing simulation for X ray imaging based on spherical crystals. It can simulate x-ray emission imaging, backlight imaging and fluorescence imaging.)

实现3D环境下的射线追踪，程序很好用，与大家分享(Realize ray tracing in 3D environment. The program is very useful and can be shared with you.)