Various implementations disclosed herein include devices, systems, and methods that progressively capture data representing an actual appearance of a user for creating a 3D avatar of the user. Image sensors at a user's electronic device may capture images (or other sensor data) of different portions of a user's body over time. Images and other sensor data that is captured initially or at a given time may not represent all of the user's body. Thus, in some implementations, the progressively captured data provides representations of additional portions of the user's 3D avatar over time.