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Autodesk Technology Helps Beowulf Battle Believably in 3DStereoscopic Film Created with Maya and MotionBuilder Software (December 20, 2007) Beowulf, director Robert Zemeckis new stereoscopic film. With the help of Autodesk technology, Sony Pictures Imageworks has taken the worlds of performance capture and 3D stereoscopic imaging to an exciting new level in Beowulf.
Sony Pictures Imageworks and an on-site Autodesk Consulting team customized the Maya interface so that a wider range of stereoscopic controls could be manipulated through the software. This interface enabled the Beowulf team, including Zemeckis, to view and make real-time changes to the film. Sony Pictures Imageworks Buzz Hays, senior visual effects producer, said, ?With Maya and the enhancements Autodesks Consulting team added to it, we had an interface that let us interactively adjust the stereo depth and layout of sequences in Beowulf. This provided a whole new level of artistic control. It was a critical step in delivering the best possible 3D experience to viewers.
Over an intensive two-and-a-half years, more than 250 artists contributed to the creation of human and mythical characters portrayed in the film. The artists relied on Maya for all animation shots, while MotionBuilder was used for all motion editing and blending.
Creating the Story with Autodesk MotionBuilder
Corey Turner, Sony Pictures Imageworks technical animation supervisor, said, ?MotionBuilder has been a part of our pipeline since we started doing performance capture. With every project we work on, we build on what we learned on the previous shows. On Beowulf, we pushed the system harder than ever before. Turner explained that the MotionBuilder softwares capabilities were extended through near-time integration (NTI) and directors layout (DLO).
?NTI is the relatively early process of getting motion data onto characters, and getting those characters into their correct position within the environment, Turner said. ?We began NTI while the director was still capturing data, but he wanted to see all he could before setting up his shots. Wed never really pulled any textures or lighting into MotionBuilder before, but that was all part of the job on Beowulf. All characters were textured as they would be in a high-end video game. We lit all our scenes, used particle effects for flames, shadow maps, normal maps anything we could to help the director visualize the mood of the scenes. The scenes were then saved and passed on to DLO.
Turner continued, ?The benefit to this system is that you can take the best parts of each live take, combine them together, and edit them using the MotionBuilder story tool, thereby giving the director one perfect take. All the layout camera work is done post capture, and the director can experiment until he loves it. With MotionBuilder, he can do it in real time, viewing and changing his camera on-the-fly.
Creating Realistic Physiques with Autodesk Maya
In order to give the lead character a realistic, non-cartoon-like physique, complex muscle systems were developed. The Autodesk Consulting team provided Sony Pictures Imageworks with custom features, interface extensions and on-site support services to aid in the implementation of production-based tools.
Kenn McDonald, animation supervisor at Sony Pictures Imageworks said, "All of our shots were set up in Maya. Beowulf has a habit of removing all his clothes when he fights. We were able to create elaborate, realistic musculature for him, giving him as much definition and sinew as we could without making him look like a bodybuilder."
McDonald added, "Although Grendel was based on performance capture, the character also required a lot of keyframing in Maya. In order for Grendel, a 12-foot-tall creature, to match Crispin Glover's performance, we had to scale a lot of curves, add weight, and adjust timing to create the feeling of an enormous monster. The fire-spewing dragon was also completely keyframed in Maya."
Facial Animation with Autodesk Maya
Elaborate facial rigs were created to handle detail in the complex expressions of male, female and monster faces. McDonald recounted, "We wrote custom tools for our facial controls, and each of our characters eventually had as many as 300 facial controls for us to manipulate. Right up until the very end, we were adding new facial shapes and new levels of control. In the end, our job was all about getting the best realization of each actors performance. Maya gave us the ability to animate these characters, and the ability to write plug-ins and custom tools for Maya was an integral part of that."
Robert Zemeckis Beowulf opened in theaters everywhere on November 16, 2007.
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