hatching vs shading

hatching and shading both are nouns.

Word	Noun	Adjective	Verb	Adverb
hatching	Yes	No	No	No
shading	Yes	No	No	No

As nouns, shading is a hypernym of hatching; that is, shading is a word with a broader meaning than hatching:

hatching: shading consisting of multiple crossing lines
shading: graded markings that indicate light or shaded areas in a drawing or painting

hatching (noun)	shading (noun)
shading consisting of multiple crossing lines	a gradation involving small or imperceptible differences between grades
the production of young from an egg	graded markings that indicate light or shaded areas in a drawing or painting