球的光照模型算法,绘制球体，给球体施加环境光、漫反射光和镜面反射光-Global illumination model algorithm, drawn ball to ball to impose environmental light, diffuse light and specular reflection of light

html5 canvas 3d and vector/matrices-math library. supports diffuse, specular light, quads and triangles, lines and points, calculates normals automatically. some performance improvements possible. does not use webgl!