Editing Stop motion (section)

===Go motion===
{{Main| Go motion}}

Another more complicated variation on stop-motion is [[go motion]], co-developed by [[Phil Tippett]] and first used on the films ''[[The Empire Strikes Back]]'' (1980), ''[[Dragonslayer (1981 film)|Dragonslayer]]'' (1981), and the ''[[RoboCop]]'' films. Go motion involved programming a computer to move parts of a model slightly during each exposure of each frame of film, combined with traditional hand manipulation of the model in between frames, to produce a more realistic [[motion blur]]ring effect. Tippett also used the process extensively in his 1984 short film ''[[Prehistoric Beast]]'', a 10 minutes long sequence depicting a herbivorous dinosaur (''[[Monoclonius]]''), being chased by a carnivorous one (''[[Tyrannosaurus]]''). With new footage ''Prehistoric Beast'' became ''[[Dinosaur! (1985 film)|Dinosaur!]]'' in 1985, a full-length dinosaurs documentary hosted by [[Christopher Reeve]]. Those Phil Tippett's go motion tests acted as motion models for his first photo-realistic use of computers to depict dinosaurs in ''[[Jurassic Park (film)|Jurassic Park]]'' in 1993. A low-tech, manual version of this blurring technique was originally pioneered by [[Ladislas Starevich|Władysław Starewicz]] in the silent era, and was used in his feature film ''[[The Tale of the Fox]]'' (1931).