A George Lucas museum on Treasure Island would be futuristic in design, but very different from the twin-peaked volcano that the “Star Wars” creator tried to build on Chicago’s lakefront, sources tell us.

“It’s quite iconic and still sculptural,” said one source connected to the planning for a possible San Francisco museum. However, unlike the largely windowless structure that Lucas hoped to build by Lake Michigan, a Treasure Island museum would be designed to give visitors sweeping views of the bay and city, said the source, speaking on condition of anonymity because the process is still in the early stages.

One thing the design will have in common with the failed Chicago effort is the architect: Ma Yansong, a Yale-educated native of China who is known for his flowing shapes and flair for the dramatic.

And while things didn’t go well in the Windy City for Lucas, local officials are rolling out the red carpet for a possible second attempt by the film magnate to house his collection of illustrative, narrative and cinematic art in San Francisco.

The city isn’t the only potential bidder for the $1.5 billion gift deal. Los Angeles is also hoping to land it.

“We understand Mr. Lucas is weighing his options,” said Deirdre Hussey, spokeswoman for Mayor Ed Lee. “The mayor and the Board of Supervisors are working closely with the Lucas team to have a home for his world-class collection on Treasure Island.”

Early on, it’s shaping up as a replay of the across-the-board backing that City Hall gave to the Golden State Warriors’ arena plan in Mission Bay.

“It is something that appears to have the support of everyone from the left, right and center,” said Supervisor Aaron Peskin, a frequent critic of past waterfront developments but a supporter of a Lucas museum on Treasure Island.

Even Jon Golinger, the “No Wall on the Waterfront” activist who helped persuade voters to give themselves a say on bay-front building heights, is on board with the idea of a Treasure Island museum.

“If it’s not a backroom deal that is jammed through ... I think the museum could potentially be great,” Golinger said.

City officials tell us Lucas has made it clear he intends to cover all the costs himself if he builds on Treasure Island. They say he won’t ask San Francisco to pay for any infrastructure improvements, and that includes the ferry service that will be set up to shuttle tourists and others to the island. That’s being paid for by Lennar Corp. and other companies that are redeveloping the old Navy base for housing and other uses.

Of course, the deal hasn’t been signed yet. Lucas is also considering a site in L.A. near his alma mater, the University of Southern California.

And he’s already had one potential deal in San Francisco go south, when the Presidio Trust nixed his plan for a museum near Crissy Field.

When that happened, Lee dangled a piece of land across from Piers 30-32, but that didn’t work out either.

But then, you know what they say about the third time.

OPD confidential: How many investigations does it take to fix the Oakland Police Department?

That may sound like the opening line of a joke. It’s not.

According to our sources, there are as many as eight probes under way into the sex and racist text scandals that have rocked the department in recent weeks.

There are two by police internal affairs, two by the federal court monitor overseeing the department, and two by the Alameda County district attorney. Mayor Libby Schaaf and City Administrator Sabrina Landreth, who is now in charge of police personnel matters, have also reached outside the city for independent investigations into how OPD internal affairs handled its investigation of the allegations that several officers had sex with a teenage prostitute, some of them when she was underage.

And, an outsider is also looking at the OPD investigation into another officer. This one isn’t related to the sex scandal.

The internal affairs investigation into the sex scandal is also trying to identify whoever tipped off the media to the possible wrongdoing.

“The overarching goal is to make sure that all complaints of police misconduct are thoroughly investigated,” Landreth said. “Our intention is to root out misconduct and prevent cover-ups, not to silence critics or whistle-blowers.”

“That’s ridiculous,” said civil rights attorney John Burris, whose lawsuit over alleged police misconduct in the early 2000s led to a federal court’s monitoring of the department. “One of the biggest problems we have is the code of silence within the department.”

Spare change? President Obama’s trip to the Bay Area last week was notable in one respect: He didn’t attend a single fundraiser.

But don’t worry. Fellow Democrat Hillary Clinton will be in town Wednesday — hosting a crowd of $1,000- to $27,000-a-head donors to her presidential campaign.

Quote of the week: From Sam Singer, spokesman for the Pride celebrations, explaining to the Guardian newspaper the reason for increased safety checks post-Orlando:

“I believe whips and chains will always be allowed at Pride. Just not weapons that you can harm another person with.”

San Francisco Chronicle columnists Phillip Matier and Andrew Ross appear Sundays, Mondays and Wednesdays. Matier can be seen on the KPIX-TV morning and evening news. He can also be heard on KCBS radio Monday through Friday at 7:50 a.m. and 5:50 p.m. Got a tip? Call (415) 777-8815, or email matierandross@sfchronicle.com. Twitter: @matierandross