Venerable pop artist David Hockney brought his art from the screen of the iPad to towering heights in San Francisco.

If you’re used to seeing his quick iPhone sketches on a screen, the 12-foot-high views to Yosemite are an eyeful. You can catch them at San Francisco’s de Young Musuem in the aptly titled “David Hockney: A Bigger Exhibitiion” until January 2014.

We’ll have more on Hockney’s stunning work and the exhibit in the November 2 edition of Cult of Mac Magazine, dedicated to mobile art.

Hockney, who had a stroke this year, appeared in good spirits if a bit disheveled for a man who topped the best dressed lists for decades. (He mussed his hair – already disorderly from the old cap he’d been wearing — instead of answering a question about fashion, conceding, “Well, everyone needs clothes. Yes, there is a link.”)

The 76-year-old is so busy with the brush, charcoal and iPad that the exhibit needs an overflow space – and the catalogue doesn’t contain all the works on show.

One of the questions from the packed auditorium of journalists was what Hockney hoped people would take away from the supersized exhibit.

He related that during his 2012 exhibit at London’s Royal Academy, someone told him that the trees seemed greener afterwards. “I hope people will start looking again at what’s around them,” he said.

Emerging from the museum into Golden Gate Park on a foggy morning, the colors do, in fact, seem more vivid than before.