Studio Lighting

Shadow Light: how to get rid of shadows.

Deflecting: Deflecting the light with a deflector to the model if dark, they use a redhead spotlight.
A Deflector is a white circle that expells the shadows from your face, but it can be a white piece of paper if you want.
Daylight Filter can be created by the studio lighting with a blue plastic card covering it up, this is called the In Fill Light.

The source of light is where the light is coming from, like for example, if you want natural light then you want it from the sun, but if you want artificial light, then studio lighting is the answer.