Marmoset toolbag 2 .... alright so should I match that feather with the plane's uvs and then make a black and white version using photo shop and use it as a transparency map ?
Yeah that's basically it. Though if you want to optimise it you'd probably want to add a bit of geo to minimise overdraw. also use dither transparency in marmoset This http://www.abload.de/img/treeleavesuvs001yasc8.jpg instead of this http://www.rigsofrods.com/attachment.php?attachmentid=176887&d=1295837477