Picture a studio cyclorama where the floor curves into the wall under several lights. It creates a stage-like background for a product or shape.
Increasing `keyIntensity` strengthens the overhead key light, while `fillIntensity` strengthens the side fill lights (defaults 40 and 10; both range 0–100). `center` places where the spotlight meets the floor (default x=0.5, y=0.8). Raise `wallCurvature` to make the cove between wall and floor more rounded (default 10, range 0–100). `ambientSpeed` sets the drift speed of the ambient lights (default 2, range -5–5).
This layer generates its own background and needs no image input beneath it. Check that the light direction suits the foreground product or shape; if the background competes with the subject, reduce the lighting strength and the prominence of the cove. Lower the motion when you need a more static studio stage.
When to use
Use it to stage a product or shape, add a multi-light backdrop, or reveal a foreground object's form with light. Avoid it when you need a flat background that stays out of the way.