Flutter rendering pipeline

In Object Graphics, rendering occurs when the Draw method of a destination object is called . A scene, viewgroup, or view is typically provided as the argument to this Draw method. This argument represents the root of a graphics hierarchy.

RenderBox class Null safety. A render object in a 2D Cartesian coordinate system . The size of each box is expressed as a width and a height. Each box has its own coordinate system in which its upper left corner is placed at (0, 0).

There are three common child models used by most RenderObjects: