Sketchup Team has presented this sketchup video that evaluates the always face camera option useful for developing any component. Always Face Camera facilitates the users to produce their own scale figures and enhance the work quality through rendering a 2D form of the component.
SketchUp consists of various 2D people components and these illustrate 2D forms which always face the camera. This sketchup tutorial is the part of sketchup skill builder series.
Go through the reference article alias how to create a basic component help.sketchup.com