Nvidia Helps ILM Forge Epic Battle Scenes for “The Last Airbender”

Category: News
Santa Clara, Calif. — Paramount Pictures' latest film, "The Last Airbender," features extraordinary battle visual effects created by Industrial Light & Magic (ILM), with the help of Nvidia Quadro professional graphics technology.

The film, released in theaters on July 2, features dramatic sequences in which characters are empowered to harness the four ancient elements – fire, air, water, and earth – and manipulate them as weapons in battle. Giant fireballs, tendrils of water, walls of earth, and overwhelming air blasts are a few of the digital simulations created by ILM as part of the film’s 485 visual-effects shots resulting in over an hour of screen time.

Central to achieving many of these sequences was the use of a tool created by ILM called Plume. Plume is both a fluid simulation system and a GPU-based renderer that utilizes the Nvidia CUDA parallel computing architecture. ILM realized dramatic speed increases with Plume by running simulation renders on a 12-machine GPU-based render farm powered by Nvidia Quadro FX 5800 professional graphics solutions.

While Plume was initially designed for rendering computer-generated fire, its flexibility led it to also be employed in the creation of air-bending dynamics, ocean mist, smoke, and the swirling of clouds. A particularly complex shot depicts the film’s main character, Aang (played by actor Noah Ringer) fighting off hurled streams of fire with gusts of air that push aside the fire and sand particles. It was made possible by two Quadro GPU-driven Plume simulations of carefully directed air streams and fire, interacting with each other.

“Because Plume is accelerated by Nvidia Quadro GPUs, it’s highly interactive and becomes a tool that relies more on the artist’s eye rather than their technical knowledge,” explained Craig Hammack, associate visual effects supervisor, ILM. “This means you don’t have to understand the underlying algorithms or all of the fine details of how fluid solvers work to drive the detail of a simulation.”

ILM's primary toolset on "The Last Airbender" included Nvidia subsidiary mental image's mental ray software and Pixar’s Renderman for rendering, Autodesk Maya for animation, The Foundry’s Nuke for compositing, and proprietary tools Zeno and Saber for CG and effects creation. ILM plans to incorporate additional Nvidia CUDA architecture-based tools into future project pipelines and continues to explore even more new ways to implement GPU-accelerated rendering into its visual effects workflows.

Check out Viewpoint in the July issue of CGW for a more in depth look at the processes used to created these elemental effects.


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