The Advanced Rendering API is provided for enabling high-quality rendering of drawing files. Rendering is performed by the RapidRT renderer.
AutoCAD and RapidRT provide a large number of render settings, that can be saved as presets. The ACAD_RENDER_RAPIDRT_SETTINGS dictionary, which resides in the named object dictionary, contains the user defined render presets for a drawing. The current active preset is stored in the ACAD_RENDER_ACTIVE_RAPIDRT_SETTINGS dictionary. The ACAD_RENDER_GLOBAL dictionary contains settings that affect how your model is rendered.
User-defined presets are objects of AcDbRenderSettings or a derived class. AcDbRenderSettings defines the general properties of a preset, such as the name and description. The setDisplayIndex() member function allows you to control the order in which presets are listed in the Render Presets Manager palette in AutoCAD.