👉 The term "reflectance" refers to the ability of a material or substance to scatter light in its direction. In other words, it describes how much light is reflected back from an object when it encounters it. For example, if you shine a light source directly onto a mirror and observe that the reflection is perfectly even (as if all the light was coming into one spot), then this would be considered "reflectance." On the other hand, if you shine a light source at a different angle
