There are traditional galleries, and then there's Lumonics, "a specialized sensory environment," as its founders put it, which is easily South Florida's most unusual venue for multimedia art. Housed in a nondescript strip of businesses just north of the Fort Lauderdale Executive Airport, Lumonics brings together light sculptures, water sculptures (in other words, fountains), performance art, digital video, laser art, dance, and music, all in one blow-your-mind complex. Dorothy Tanner and her husband, Mel (who died in 1993), started Lumonics as a showcase for large-scale acrylic sculptures that combine bright colors with internal lighting. Those pieces, along with water sculptures, are still displayed in a few small rooms and in the large main theater, which is where things really get interesting. From an upstairs control booth, a pair of artists (originally Dorothy and Mel, now Dorothy and Marc Billard) create one-of-a-kind performances set to music that include digital video projections and lasers dancing across a 35-foot wall that serves as their palette. Tanner and her collaborators originally created their soundtracks using jazz, classical, and New-Age music, but have lately leaned more toward original material by Tanner and Billard. And their regular hour-and-a-half shows have evolved more or less into "happenings," with the main performance followed by late-night parties in the adjacent Nite-Light gallery, where visitors can dance to cutting-edge DJ music or just hang out among the light sculptures.