FUTURE IMPERFECT Mary Mattingly’s digitally manipulated photographs are on display in “Second Nature.” Their subject matter is “the distant future of the human race.” In her imagined future, industrial civilization has fallen and people live as nomads, wearing their homes on their backs like snails. Forced to scavenge for scarce natural resources, the figures in this landscape are cut off from each other. Ms. Mattingly creates these scenes by first sewing costumes, designing machinery, and posing the characters in each scene. The resulting photographs are tweaked digitally to create the final products on display. Through Saturday, February 25, Tuesday-Saturday, 11 a.m.-6 p.m., Robert Mann Gallery, 210 Eleventh Ave., between 24th and 25th street, 212-989-7600, free.

CAESAR’S PALACE Ray Caesar’s digital artwork is on display in Chelsea. He starts by “sculpting” using three-dimensional computer software, then “wraps” his structures in digital texture. The images on display in “Sweet Victory” are mostly of children, dressed up and often at play. Through Saturday, February 4, Tuesday-Saturday, 11 a.m.-6 p.m., Jonathan Levine Gallery, 529 W. 20th St. at the West Side Highway, no. 9E, 212-243-3822, free.

BY BIALA Tibor de Nagy Gallery displays paintings by American artist Janice Biala (1903-2000). Through Saturday, February 4, Tuesday-Saturday, 10 a.m.-5:30 p.m., Tibor de Nagy Gallery, 724 Fifth Ave., between 56th and 57th streets, 212-262-5050, free.

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