Learn the lighting setups every artist should know — Rembrandt, rim, split, butterfly — and how to study them from photo reference for believable form.
You can draw perfect anatomy and it will still look flat if the lighting is wrong. Light is what turns lines into form — and learning to read lighting from reference is one of the highest-leverage skills an artist can build. Here are the setups worth knowing by name.
Rembrandt: key light high and to one side, creating a small triangle of light on the shadow-side cheek. The workhorse of portraiture — flattering, dimensional, dramatic.
Loop: a softer, more frontal version of Rembrandt — the nose shadow "loops" down toward the mouth corner. The most common everyday portrait light.
Split: light from 90° to the side, splitting the face into half lit, half shadow. High drama, strong character.
Butterfly: light high and directly in front, a small shadow under the nose. Glamour and beauty lighting.
Rim / backlight: light from behind, carving a bright edge around the form and separating it from the background. The secret weapon for making subjects pop.
Don't just note "the light is on the left." Study the four zones of light on any form: the highlight (brightest point), the halftone (the form turning away), the core shadow (the darkest band where the form turns fully away — beginners always forget this), and the reflected light (bounce filling the shadow). Get those four reading correctly and anything looks solid.
Random photos have messy, mixed lighting that's hard to learn from. Reference shot with intentional setups teaches you the logic cleanly. Our Lighting Figure pack and the portrait collection are lit with named setups precisely so you can study one variable at a time.
Take one reference and do three fast value studies: one in two values (light/shadow only), one in three, one in five. Squinting to simplify teaches you to see the big light shapes before the detail — the same seeing skill behind every solid rendered drawing. Pair this with the form knowledge from anatomy study and your figures will finally feel three-dimensional.
Published 2026-06-02 on the Refimages blog.