In art Rembrandt lighting is a lighting technique often used in portraiture. One side of the face is lit well from the main light source while the other side of the face uses the interaction of shadows and light to create this geometric form on the face.
How to paint Rembrandt lighting
To reenact Rembrandt's style, use an indoor lighting setup that places a light above your subject's face. You should be able to see that the model's jawline and cheekbones are emphasized by the technique.