From a specific point omni all directions even ground illuminate objects, and use it to better analogy bulb and candles. Omni lights can be placed in any place in the scene. For example, can be placed in the camera outside the scope of the object, or is internal. The use of many different colors of cosco distance of omni is very common. These omni will dark and mixed in the projection on the model. Due to the large range of omni irradiation, so the effect is very easy to illuminate the omni lights, and there are many auxiliary purposes, for example, will be placed in the near surface omni's position, the surfaces of the bright light.