Editing Computer animation (section)

==Modeling==
3D computer animation combines 3D models of objects and programmed or hand "keyframed" movement. These models are constructed out of geometrical vertices, faces, and edges in a 3D coordinate system. Objects are [[digital sculpting|sculpted]] much like real clay or plaster, working from general forms to specific details with various sculpting tools. Unless a 3D model is intended to be a solid color, it must be painted with "[[texture mapping|textures]]" for realism. A bone/joint animation system is set up to deform the CGI model (e.g., to make a humanoid model walk). In a process known as ''rigging'', the virtual marionette is given various controllers and handles for controlling movement.{{sfn|Parent|2012|p=289}}<ref>[http://blog.animationmentor.com/why-a-great-rigger-is-an-animators-best-friend/  animationmentor.com Why a Great Rigger is an Animator's Best Friend, By: Ozgur Aydogdu]</ref> Animation data can be created using [[motion capture]], or [[keyframing]] by a human animator, or a combination of the two.{{sfn|Beane|2012|p=2-15}}

3D models rigged for animation may contain thousands of control points — for example, "Woody" from ''[[Toy Story]]'' uses 700 specialized animation controllers. [[Rhythm and Hues Studios]] labored for two years to create [[Aslan]] in the movie ''[[The Chronicles of Narnia: The Lion, the Witch and the Wardrobe]]'', which had about 1,851 controllers (742 in the face alone). In the 2004 film ''[[The Day After Tomorrow]]'', designers had to design forces of extreme weather with the help of video references and accurate meteorological facts. For the [[King Kong (2005 film)|2005 remake]] of ''[[King Kong (1933 film)|King Kong]]'', actor [[Andy Serkis]] was used to help designers pinpoint the gorilla's prime location in the shots and used his expressions to model "human" characteristics onto the creature. Serkis had earlier provided the voice and performance for [[Gollum]] in [[Peter Jackson]]'s ''[[The Lord of the Rings (film series)|The Lord of the Rings]]'' trilogy.