Method of ModelPart
modelPart:box
Corners in any order; a box turns on one axis, in steps of 22.5 up to 45, and pivot is the box's own centre unless you give one.
modelPart:box(from: Vec3, to: Vec3, skin: ModelSkin, opts: { rotation: Vec3?, pivot: Vec3?, faces: { [Face]: ModelSkin }?, }?)