It's basicallyt a good proposal, but as Sven said, investigatehttp://doc.qt.nokia.com/4.6/qtransform.html, and don't mention KoShape here: it's irrelevant. Also not that there is existing code for 3d transformations of layers in Krita which you might be able to reuse. -- Boudewijn Rempt | http://www.valdyas.org