The sweat poured off Kevin Garnett’s bald head just minutes after the 37-year-old future Hall of Famer put himself through a rigorous shooting workout inside AT&T Center in San Antonio Wednesday afternoon.

It was inside that same arena Tuesday night where Garnett went 0-for-5 from the field, continuing his season-long shooting woes and leaving himself and the Nets as a whole searching for answers heading into Thursday night’s game against the Thunder.

“It shouldn’t,” Garnett said when asked if his shooting struggles have impacted his confidence.

“Obviously, the most frustrating thing about me is I could see if I wasn’t hitting shots and I wasn’t in here working or taking [expletive] days off.

“I put time into my craft for it to come out, but then that’s rhythm on offense. And I don’t have that right now. I’m not [expletive] about it, nor am I complaining. I’m just trying to adjust to it.”

Garnett has said repeatedly since coming to the Nets — along with Paul Pierce and Jason Terry — last June he wasn’t brought to Brooklyn to be a primary option offensively, something he repeated Wednesday. And while it’s true Garnett wasn’t expected to carry the scoring load as he did in Boston on a roster with younger stars such as Deron Williams and Brook Lopez, he certainly was expected to do far more than he has.

After missing all five shots he took Tuesday, Garnett is now shooting a dismal 36.4 percent for the season — more than a full 13 points below his 49.6 percent clip last season in Boston — and looks as if he is years removed from the player who averaged 12.7 points and 13.7 rebounds in Boston’s first-round exit against the Knicks at the end of last season.