William Wegman’s subtle portraits of his weimaraners have elevated the pet photo to high art. But few connoisseurs have known the range of his creativity—until now. The &first retro- spective of the artist’s output, on view at Houston’s Contemporary Arts Museum, offers more of his trademark pups but also plenty of pieces in which there’s not a dog to be seen. “William Wegman: Paintings, Drawings, Photographs, Videotapes” closes August 23.