Diffuses this quality of light effects but the visual atmosphere of a room and the appearance of the objects within a diffuse This is a measure of the light direction and dispersion as it emanates from it source. A broad source of light such as a luminous ceiling produces different illumination than that which is flat, fairly uniform and general glare free lighting. This soft light minimizes contrasts and shadows and can make the rating of a surface texture difficult. It's opposite concentrated light sources produce directional lighting, a point source of light such as an incandescent bowl produces a directional light with little diffusion. Directional lighting enhances at the same pole and shape of surface texture by producing shadows and brightness variations in the objects it illuminates. diffused diffuse lighting is useful for general vision.

Some directional lighting can help relieve the dullness by providing visual accents, introducing brightness variations and broadening toss ups is a mix of both diffused and directional lighting is often desirable and beneficial, especially when a variety of tasks to be performed in a room.