https://i.ytimg.com/vi/IrMhbuC8aM0/hqdefault.jpg

This tutorial shows how to add different colours to selected faces of a mesh object.

Key Points –
Use the Alt key to extend a selection in a line or loop, selecting rings or segments of a sphere.
Adding material slots so that more than one material can be applied to an object.
Using the Assign button to assign a material to a selection of faces.

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