SketchUp is a 3D modeling application similar to Photoshop or AutoCAD. Unlike these programs, however, SketchUp does not have a grid feature to guide you while you are drawing your models. Instead, ...

Gimp, or GNU Image Manipulation Program, is a free graphics application that you can use to create and edit images and photos. You can also use Gimp to draw your own pictures by using the Paintbrush ...