public static extern SU_RESULT SUSceneGetRenderingOptions(SUSceneRef scene, ref SURenderingOptionsRef options);
public static extern SU_RESULT SURenderingOptionsSetValue(SURenderingOptionsRef rendering_options, string key, SUTypedValueRef value_in);
public static extern SU_RESULT SURenderingOptionsGetNumKeys(SURenderingOptionsRef rendering_options, ref size_t count);
public static extern SU_RESULT SURenderingOptionsGetKeys(SURenderingOptionsRef rendering_options, size_t len, SUStringRef[] keys, ref size_t count);
public static extern SU_RESULT SURenderingOptionsGetValue(SURenderingOptionsRef rendering_options, string key, ref SUTypedValueRef value_out);