What light is suitable for thin face and fat face in portrait photography? Where is the light? Just take a three-dimensional view, okay?

From personal experience, portrait photography should not only look at the fat and thin face, but also look at the face, posture and makeup style. Lighting is a multi-level consideration. In addition, there will be great differences between indoor and outdoor lighting.

I think you mean indoor lighting.

From the perspective of three-dimensional sense, no matter what face shape, if you want to create a three-dimensional sense, you must create a shadow through light to create a sense of hierarchy. For example, the face of the subject is obvious relative to the lines, and the nose is high. When shooting, it is necessary to highlight the facial lines. You can use a single-sided light distribution light box to make up the light, and the output of the light source brightness needs to be adjusted by yourself. If the angle is 45 degrees, it is generally 45 degrees sideways, and the height is about 15-30 degrees above the horizon of the model, but such figures are generally hard and not soft enough. This style will generally appear in some European countries. If this face needs soft lines, it needs multi-angle illumination to avoid too many line shadows.