The curved pen tool in Photoshop makes creating resolution independent, scalable vector paths in Photoshop CC a simple process. Creating the path and creating a selection therefrom is a simple matter. Creating different custom shapes has never been easier using the curved pen tool. There are numerous youtube videos online demonstrating this process, one of the best being that of Julieanne Kost from Adobe systems. There are several Photoshop and Lightroom tutorials by this author. The curved pen tool is one such tutorial.