Reflection of light. Computer artwork showing how light reflects off three spheres. The sphere at right is opaque, reflecting light only diffusely. The exterior of the sphere in the middle is perfectly reflecting, allowing a clear image of its surroundings to be seen on its surface. The left sphere is made of translucent glass. The light coming from it is a combination of rays which have been reflected from this side of the sphere and bent (refracted) as they passed through from the other side.