Similar to illustration are other methods of developing images such as photography, 3D modeling, and image editing. Creative professionals in these positions are not usually called illustrators, but are utilized the same way. Photographers are likely to freelance. 3D modelers are likely to be employed for long-term projects. Image editing is usually a secondary skill to either of the above, but may also be a specialty to aid web development, software development, or multimedia development in a job title known as multimedia specialist. Although these skills may require technical knowledge, graphic design skills may be applied as well.