I am just starting to do work with brushes/artistic images made from my photos, etc. I am interested in uploading as illustrative artwork as well as brush collections. The artwork I saved in PS as JPEGs at maximum quality. How should I save the brushes? I do have access to Illustrator as well, but I'm not very familiar with it. With PS, I see that they have their own PS esp format. I understand that with vector images, they can be scaled indefinitely.
Should brushes be uploaded as JPEGs? What additional formats do I need to make them sell better?
Vector eps files are not the same as Photoshop eps files. EPS files can be vector (Illustrator) or bitmap (Photoshop). Photoshop eps files are used for printing to postscript printers or imagesetters. In the world of print on paper (magazines, books, catalogs, etc.) it used to be desirable to provide photos saved in the eps format. The printing press plates could often be created more efficiently if the photos were submitted as eps (or tif) files.
A vector file is much different. Vector files are created with mathematics that create bezier curves using coordinates (the information for creating lines, nothing to do with pixels). Simply saving a Photoshop image in the eps format will not convert pixels to vectors. Photoshop eps files can be resampled but cannot be scaled. Vector files can be scaled to any size and not lose clarity because you are not working with pixels but mathematical formulas to create shapes and lines.
Google it, there is lots of info out there on the difference.There is lots of info on creating brushes in both Illustrator and Photoshop too, including some good youtube how-to videos.