Celtics guard Marcus Smart entered Wednesday’s game in a shooting slump. Over his last six games he had made just 4 of 29 3-point attempts (13.8 percent). Smart said he has analyzed film to try to find a flaw in his mechanics or his rhythm, but that has not revealed any answers.

“Just not falling,’’ said Smart, who scored just 2 points in the 91-79 win over the Raptors, connecting on 1 of 8 shots (0 for 1 on 3-pointers) from the field. “Everything’s right. I’m open and the followthrough is there. It’s just not falling. I’ve watched plenty of film where the ball was halfway down and it just came back up. You’ve just got to keep shooting.’’

Smart was in a similar slump in mid-January, and when the Celtics’ Jan. 23 game against the 76ers was postponed he stayed after practice and completed a lengthy session by himself. It may have been a coincidence, but he regained his shooting stroke soon after, making 13 of his next 27 3-pointers.

Smart said he has been working on shooting while on the move, with a focus on keeping his body and posture straight. He also spends a lot of time attempting corner 3-pointers, because that is where he often fires from during games.

“It’s weird, because when I’m practicing those, I’m knocking them down,’’ Smart said. “When I get in the game, it’s just like I can’t buy a bucket. But it’s just something you’ve got to keep shooting.’’

Despite his struggles, Smart remained confident that he would soon snap out of this rut.

“It’s just a matter of time of seeing one go through before they all start going in,’’ he said.

Big picture

Raptors All-Star guard Kyle Lowry was active but missed the game because of a sore right elbow. During his interview session before the game, Toronto coach Dwane Casey discussed how much emphasis he would put on chasing the No. 1 seed in the Eastern Conference. The Raptors are just 2½ games behind the first-place Cavaliers.

“We all are fighting for it,’’ Casey said. “But if it comes between a guy with a sore ankle, sore calf, sore knee or whatever, and fighting for that spot, my team’s health is more important than putting them out there and maybe further damaging them.’’

The Celtics are in a tie for third. The clustered setup should lead to some intriguing matchups over the regular season’s final three weeks.

“Any of us, you have a bad week or two you could be at the bottom looking up,’’ Casey said. “So I think it’s good. It keeps players on edge. You’re playing for something each night. I think the fans are excited about it; they’re playing for something each game and each night. They keep up with other teams. So I think it’s all good for the league. It just shows that all the organizations in the Eastern Conference did a good job of revamping, retooling, and getting their team competitive for a playoff race.’’

Celtics coach Brad Stevens has made it clear that he does not pay close attention to the standings, but that he is aware of them. He reiterated that point on Wednesday.

“We’ve said all year the East is deep and the East has been good and you’re going to have to play well through 82 games to get into the playoffs,’’ Stevens said. “Here we are.’’

Travel plans

Celtics forward Jae Crowder, who is out with a high ankle sprain, completed some light shooting with assistant coach Jamie Young on Tuesday and also took some shots before Wednesday’s game, but Stevens had no update on his possible return. He confirmed that Crowder will join the team on its upcoming West Coast trip.

“I don’t want to put a timeline on him,’’ Stevens said, “but I don’t anticipate him playing early in the trip.’’

The Celtics assigned forwards James Young and Coty Clarke to the D-League’s Maine Red Claws. Maine played on Wednesday and also has a game on Friday, and Stevens said Young and Clarke were expected to join the Celtics out West afterward.

Wahlberg in house

Actor Mark Wahlberg watched the game from a courtside seat. When he was shown on the main scoreboard, the Garden crowd roared and Wahlberg pointed to his Red Sox cap.

Celtics point guard Isaiah Thomas noticed Wahlberg at that point. And when he hit a 3-pointer later in the game, he pointed to him, and Wahlberg pointed back.

“That was my first time seeing him,’’ Thomas said. “Once they showed him on the Jumbotron, I had to find out where he is.’’

Thomas was asked if he would like a role in one of Wahlberg’s movies.

“Something. I need something,’’ he said, smiling. “And he’s got some nice [Air] Jordans that nobody else has got. So I need those, too.’’

Adam Himmelsbach can be reached at adam.himmelsbach@globe.com. Follow him on Twitter @adamhimmelsbach.