Animation
Toon Boom Animation's Toon Boom Harmony software was used as the main software package for the production of the film, as the Computer Animation Production System (CAPS) system that Disney developed with Pixar in the 1980s for use on their previous traditionally animated films had become outdated. The Harmony software was augmented with a number of plug-ins to provide CAPS-like effects such as shading on cheeks and smoke effects. The reinstated traditional unit's first production, a 2007 Goofy cartoon short entitled How to Hook Up Your Home Theater, was partly animated without paper by using Harmony and Wacom Cintiq pressure-sensitive tablets. The character animators found some difficulty with this approach, and decided to use traditional paper and pencil drawings, which were then scanned into the computer systems, for The Princess and the Frog.
The one exception to the new Toon Boom Harmony pipeline was the "Almost There" dream sequence, which utilized an Art Deco graphic style based on the art of Harlem Renaissance painter Aaron Douglas. Supervised by Eric Goldberg and designed by Sue Nichols, the "Almost There" sequence's character animation was done on paper without going through the clean-up animation department, and scanned directly into Photoshop. The artwork was then enhanced to affect the appearance of painted strokes and fills, and combined with backgrounds, using Adobe After Effects.
The visual effects and backgrounds for the film were created digitally using Cintiq tablet displays. Marlon West, one of Disney's veteran animation visual effects supervisors, says about the production; "Those guys had this bright idea to bring back hand-drawn animation, but everything had to be started again from the ground up. One of the first things we did was focus on producing shorts, to help us re-introduce the 2D pipeline. I worked as vfx supervisor on the Goofy short, How to Hook Up Your Home Theater. It was a real plus for the effects department, so we went paperless for The Princess and the Frog." The backgrounds were painted digitally using Adobe Photoshop, and many of the architectural elements were based upon 3D models built in Autodesk Maya.
The former trend in Disney's hand-drawn features where the characters and cinematography were influenced by a CGI-look has been abandoned. Andreas Deja, a veteran Disney animator who supervised the character of Mama Odie in Princess and the Frog, says "I always thought that maybe we should distinguish ourselves to go back to what 2D is good at, which is focusing on what the line can do rather than volume, which is a CG kind of thing. So we are doing less extravagant Treasure Planet kind of treatments. You have to create a world but . What we're trying to do with Princess and the Frog is hook up with things that the old guys did earlier. It's not going to be graphic...". Deja also mentions that Lasseter was aiming for the Disney sculptural and dimensional look of the 1950s: "All those things that were non-graphic, which means go easy on the straight lines and have one volume flow into the other – an organic feel to the drawing." Lasseter also felt that traditional animation created more character believability. For example, with Louis the alligator, created by Eric Goldberg, Lasseter said: "It's the believability of this large character being able to move around quite like that."
Clements and Musker had agreed from very early on that the style they were aiming for was primarily that of Disney's Lady and the Tramp (1955), a film which they and John Lasseter feel represents "the pinnacle of Disney's style". "After that, everything started becoming more stylized, like 'Sleeping Beauty,' '101 Dalmatians' – which are fantastic films as well, but there's a particular style (to 'Lady and the Tramp') that's so classically Disney." Lady and the Tramp also heavily informed the style of the New Orleans scenes, while Disney's Bambi (1942) served as the template for the bayou scenes. Much of the clean-up animation, digital ink-and-paint, and compositing were outsourced to third party companies in Orlando, Florida (Premise Entertainment), Toronto, Ontario, Canada (Yowza! Animation), and Brooklin, São Paulo, Brazil (HGN Produções)
Read more about this topic: The Princess And The Frog, Production