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© Pixar 3D ARCHIVE
Ratatouille
Subsurface Scattering Gummi Glow

Food

Film: Ratatouille Director: Brad Bird Year: 2007
Ratatouille

A rat named Remy dreams of becoming a great chef, despite his family’s wishes and the obvious problem of being a rat in a profession decidedly hostile to rodents. When fate leads Remy to the sewers of Paris, he finds himself perfectly positioned beneath a restaurant made famous by his culinary hero, Auguste Gusteau. Remy’s passion for cooking soon sets off a frantic and hilarious rat-paced adventure that shakes up Paris’s gastronomic world.

Innovation: Subsurface Scattering

Subsurface Scattering is used to make food look extremely realistic and appetizing while maintaining a visual style consistent with the animation. It was initially applied to ingredients to simulate light diffusion through fruits, vegetables, cheeses, and other foods, giving them a soft and translucent appearance.

This technique simulates the behavior of light within semi-transparent materials: part of the light penetrates the object, diffuses internally, and then emerges at a different point, while another part is immediately reflected by the surface. It creates softness and translucency, essential for making ingredients like tomatoes, carrots, or cheeses look realistic, which would otherwise appear flat and artificial.

Innovation 2: Gummi Glow

In practice, Gummi Glow applies a subtle glow to surfaces, integrating reflections and light diffusion to enhance the three-dimensionality and shine of objects.