PHP 5.4 introduced traits. Traits are in many ways like code-assisted copy and paste. They are ways to mix code into a class without inheritance. But what are they good for? When should they be used?
A video tutorial on using the Viewport Canvas tool in 3D Studio Max 2010. The video demonstrates painting directly onto geometry as well as using 3rd party paint applications such as Photoshop and Corel PHOTO-PAINT.