OptionalbackgroundOptionalbuildOptionalcameraVertical lens in degrees, [10, 120] (default 50). Framing is lens-aware.
OptionalcreateInjected GL (tests / exotic hosts). Default: the shared stage builder, alpha on for transparency.
OptionalpreserveOptionalthemePlate/backdrop theme subset (DD-032 §4.3); theme.background beats background. Lights are not themed.
Build plate under the model (DD-032 §4.3). Omit for no plate (today's render).