PhotorealismPhotorealism is the genre of painting based on using cameras andphotographs to gather visual information and then from this creating apainting that appears to be photographic. The term is primarily appliedto paintings from the United States art movement that began in thelate 1970s.As a full-fledged art movement, Photorealism evolved from Pop Artand as a counter to Abstract Expression as well as Minimalist artmovements in the late 1960s and early 1970s in the United States.Photo realists use a photograph or several photographs to gather theinformation to create their paintings and it can be argued that the useof a camera and photographs is an acceptance of Modernism.http://en.wikipedia.org/wiki/Photorealism
Cel ShadingCel shading (often misspelled as cell shading) or toon shading isa type of non-photorealistic rendering and an illumination modeldesigned to make computer graphics appear to be hand-drawn.Cel-shading is often used to mimic the style of a comic book orcartoon. It is somewhat recent, appearing from around thebeginning of the twenty-first century. In addition to computergraphics, it most commonly turns up in video games. However,the result of cel-shading has a very simplistic feel like that ofhand-drawn animation. The name comes from cels (short forcelluloid), the clear sheets of acetate which are painted on foruse in traditional 2D animation, such as Disney classics.http://en.wikipedia.org/wiki/Cel_shading
AbstractionStrictly speaking, it refers to art unconcerned with the literaldepiction of things from the visible world it can, however, referto an object or image which has been distilled from the realworld, or indeed, another work of art. Artwork that reshapes thenatural world for expressive purposes is called abstract; thatwhich derives from, but does not imitate a recognizable subjectis called non-objective abstraction. In the 20th century the trendtoward abstraction coincided with advances in science,technology, and changes in urban life, eventually reflecting aninterest in psychoanalytic theory.Later still, abstraction wasmanifest in more purely formal terms, such as colour, freedomfrom objective context, and a reduction of form to basicgeometric designs.http://en.wikipedia.org/wiki/Abstraction_(art)
ExaggerationExaggeration is used in games, mostly in RPGs, this art style isused for animé and manga typically, this art style is where theartist exaggerates many things within the game, mostly gameswith a Japanese influence, for example, in the game "finalfantasy 7" the character "cloud" has a huge sword.