Concept art
Concept art serves primarily as a visualization of the design of characters, environments, scenes, technology, etc. in video games, movies, but also comics.
Concept art designs the visual side of the world, the form of characters and objects, which then govern the entire visual production, including 3D designers and graphic artists. They then implement these designs into games and CGI effects.
A good example of our collaboration on concept art is the Nanits Chronicles project.