Broker For Instancing

A first set of instance layer data that describes a scene to be represented by one or more computer-generated images is obtained. The set of instance layer data specifies a plurality of object instances within the scene, with each instance of the plurality of object instances corresponding to a position that an instance of a digital object is to appear in the scene. The set of instance layer data further specifies a first set of characteristics of the plurality of object instances that includes the position. A second set of instance layer data that indicates changes to be made to the scene described by the first set of instance layer data is obtained. A third set of instance layer data is generated to include the changes to the scene by overlaying the second set of instance layer data onto the first set of instance layer data. The scene is caused to be rendered by providing the third set of instance layer data to an instancing service.