带光照的三棱锥，左上角环境光，右上角反射光，可用键盘的上下键来控制视角-The three pyramids with light, ambient light left corner, right corner of reflected light, the available keyboard arrow keys to control the angle

用VS2012实现的计算机图形学中OPEN-GL的光照模型，绘制球形，可以调整光照亮度，亮斑大小，环境光等等参数来改变球的颜色，看起来效果不错。-VS2012 using computer graphics to achieve the illumination model OPEN-GL, the drawing ball, you can adjust the brightness of the light, bright spot size, ambient light, etc. par