Portrait light
Simulator
AI generated demo image
How portrait lighting works
Most portrait lighting is built from a few lights with distinct jobs. Where you put the main light decides the pattern of shadows on the face; how much the other lights fill those shadows decides the mood.
Key light
The main light. Its direction and height shape the face and create the main shadows. Everything else is measured against it.
Fill light
A weaker light, usually near the camera on the other side, that lifts the shadows the key creates. Less fill means more drama.
Back light
A light behind the subject that draws a bright rim along the hair and shoulders, separating them from the background.
Lighting ratio
How much brighter the lit side is than the shadow side. 2:1 is soft and open, 4:1 is classic portraiture, 8:1 and beyond is dramatic, low-key light.
Rembrandt
Key about 45° to the side and above. The nose shadow joins the cheek shadow, leaving a small triangle of light under the far eye.
Loop
Key a little lower and closer to the camera than Rembrandt, so the nose casts a small loop-shaped shadow down toward the corner of the mouth. Flattering for most faces.
Butterfly
Key straight in front and high above, making a small butterfly-shaped shadow under the nose and sculpting the cheekbones. A classic Hollywood glamour look.
Split
Key at 90° to the side at eye level, so exactly half the face is lit and half falls into shadow. Strong and moody.
Broad and short
With the face turned, broad lighting lights the side facing the camera, which widens the face; short lighting lights the side turned away, which slims it and adds depth.
Hard and soft light
A small light source, like a bare bulb or the sun, casts crisp shadows. A large source, like a softbox or a window, wraps around the face with gentle transitions.