>>10831620>What's the general idea behind shadingYou mean shading in general or figure shading specifically?
The point of shading is to create darker shadows in recesses and such that would not be as pronounced at a small scale.
When shading a human figure, depending on how realistic you want to get, you might also want to apply redish/pinkish/brownish shades where human skin tends to have that particular coloration (inner sides of joints, knuckles, bottoms of feet, cheeks, etc etc).
