If you fancy yourself an art technologist — or an art enthusiast with a penchant for beautiful data visualizations and a curiosity about what something like the city's taxi usage looks like in real time from a bird's-eye point of view — you'll love Gray Area Foundation for the Arts. Born out of a revamp of a porn movie theater in the Tenderloin, it provides a supportive workspace for local digital artists — including Aaron Koblin, who produced the Radiohead video for "House of Cards" with the cool 3D depictions of faces. Visit Wednesday through Friday, 4 to 8 p.m., or check out the calendar on its Web site.