Lens flare is an artifact (usually in the shape of a lens iris) and a common problem for photographers that is caused when direct light hits the front of the lens, and in photography, this light is called non-image forming light. Although this is often an undesired artifact, some types of lens flares are used to enhance the artistic meaning of a photo. By default, Lumion applies this lens flare in your scene in a very subtle way, but let's see how we can control it using the Lens flare effect.