In chroma key technique, lighting is the most important aspect to consider for bringing realism to the videos. The technique is simple to apply, but the lighting is tricky.

When lighting some scene in chroma key technique, there are some points which are needed to be kept in mind. Firstly, light will reflect back the screen color (green, blue or any other) on the actor. So, mover the actor far from the screen as much as possible. Secondly, light the background evenly. For this, use lighting kit which offers diffused and even light. There should not be any hotspots or shadows on the screen....