Jazz Tangcay Artisans EditorWhen director Lisa Donato came on board to helm “Gossamer Folds,” casting a trans actor to play the lead was imperative. “It was non-negotiable,” she says of her directorial debut.Even more important was getting the framing and lighting right, and for that, Donato recruited her frequent collaborator and trans cinematographer Ava Benjamin Shorr to make the right choices when it came to “accurately depicting a trans person.”“Gossamer Folds,” now screening at Outfest LA’s film festival, tells the story of a friendship between Gossamer, played by “Transparent’s” Alexandra Grey, and a young white boy named Tate (Jackson Robert Scott).