Child 3D models. 4,384 3D Child models available for download. 3D Child models are ready for animation, games and VR / AR projects. Use filters to find rigged, animated, low-poly or free 3D models. Available in any file format including FBX, OBJ, MAX, 3DS, C4D. 2 Java frameworks with transient and persistent object models based on nonstandard approach (less evident but faster development): an object is a set of named fields. 3 non-object libraries simplifying access to tables stored in RDB, text files.