Concept Art and Visual Development
The term “concept artist” is generally used in video games or live-action films, and the term “visual development (vis dev) artist” is typically used in animation. While there are some differences, the main purpose of both their jobs is to take ideas from a script or a brief and turn them into visuals.
Majority of their work is done for behind-the-scene purposes during the pre-production stage, so the work is rarely seen by the public. The work is necessary to bridge the gap between abstract ideas and concrete visuals, so that other departments in the pipeline like 3D artists, animators, or lighting artists can use the designs to build the final product.
There are artists who are generalists and can design everything, while some specialize in something specific like characters, vehicles, or even lighting. Some in-house full-time positions may prefer generalists, while freelance positions are mostly specialized.
Concept artists and vis dev artists design various things including characters, environments, props, story moments, or mood. The process usually include thumbnails, idea explorations, blue sky or mood paintings, design variations, expression sheets, call-outs/details, turnarounds/orthos, layouts, and color keys. The more experienced/senior artist will usually be doing the initial/rough concepts that require more decision making, and the less experienced artist will be doing more refined diagram-like production artwork that is passed onto the 3D artists to use as a guide.
(Note: The terms are inconsistent across different industries and companies. For example, the initial rough painting to explore idea is sometimes referred to in the animation industry as “concept art”, but in the game industry, this is sometimes referred to as “production painting”. There are also sometimes called “blue-sky” or “key-art”. )
Because of the nature of the corporate structure, concept artists and vis dev artists are expected to come up with as many ideas as possible in a short amount of time, so often times highly rendered paintings are not necessary, as long as the ideas are being conveyed clearly. It may help to think of the job as more of a designer than an artist.
Lastly, concept artists and vis dev artists are usually paid by the amount of time put in the work (hourly/daily/weekly/salary).