"Every development deal starts with a pitch and my pitch came from my then kindergartner, in collaboration with his pre-school brother.
Upon our second reading of Shrek, the kindergartner started quoting large segments of the book pretending he could read them.
Making human hair realistic was different from Donkey's fur, requiring a separate rendering system and a lot of attention from the lighting and visual effects teams.
Aron Warner said that the creators "envisioned a magical environment that you could immerse yourself into." Shrek includes 36 separate in-film locations to make the world of the film, which Dream Works claimed was more than any previous computer-animated feature before.
Once the technology was mastered, it was able to be applied to many aspects of the Shrek movie including grass, moss, beards, eyebrows, and even threads on Shrek's tunic.
Art Director Douglas Rogers visited a magnolia plantation in Charleston, South Carolina for inspiration of Shrek's swamp.
According to Myers, he wanted to voice the character "for two reasons: I wanted the opportunity to work with Jeffrey Katzenberg; and [the book is] a great story about accepting yourself for who you are." After Myers had completed providing the voice for the character, when the film was well into production, he asked to re-record all of his lines with a Scottish accent, similar to that his mother used when she told him bedtime stories and also used for his roles in other films, such as So I Married an Axe Murderer and Austin Powers: The Spy Who Shagged Me.
Both Adamson and Jenson decided to work on the film in half, so the crew could at least know who to go to with specific detail questions about the film's sequences; "We both ended up doing a lot of everything," Adamson said.
"We're both kinda control freaks, and we both wanted to do everything." Some early sketches of Shrek's house were done between 19 using Photoshop, with the sketches showing Shrek first living in a garbage dump near a human village called Wart Creek.