Pairs of such reflecting surfaces are known as etalons. 這樣一對反射面通常稱為標準具。
The planes of the wave front and the reflecting surface are also normal to the plane of the figure. 波陣面的諸平面與反射面都與圖面垂直。
It supports the same kinds of diffuse surface shading that standard material does. 它支持同標準材質同一類型的漫反射表面著色。
Notice how dark non-reflective surfaces such as foliage become, whereas more reflective surfaces such as the cranes sill look quite light. 如何黑暗的通知非反射表面如樹葉變成，而更多地反映表面如起重機窗檯期待相當輕。
