Develop - Issue 115 - April 2011

Page 56

BUILD | SOFTWARE

KEY RELEASE Will Freeman turns an eye to Image Metrics’ facial animation solution...

Faceware promises to deliver results fast, and has been used in numerous high profile games including Red Dead Redemption

IMAGE METRICS’ marker-less facial capture tool Faceware has now been in development for over a decade, but that doesn’t mean it’s anywhere near an evolutionary dead end. In fact, the new 3.0 update is the most significant to the animation solution yet, which takes Image Metrics’ popular technology from service to software, giving far more creative control to its users. The fundamental workings of Faceware 3.0 are simple. It utilises a marker-less video analysis technology and an artist driven performance transfer toolset that lets actors work without restriction, and developers capture using ordinary camera equipment. Allowing the application of captured data to any rig, it promises to deliver high quality results quickly, and with minimum disruption to any studio embracing Faceware for the first time. FACE VALUE For the Image Metrics team, making Faceware 3.0 available as ‘software as a service’ was a no brainer. “Offering Faceware as a product is so much more attractive to so many more people, because all creative decisions are made by the studio,” says the company’s technical account director Peter Busch. “We’ve been doing this so long, it’s also got to the point where we know this is proven. It’s absolutely battletested to the point that we know it works, which is why we’re confident to put it on the web for free.” Developers working with Faceware need only part with cash at the processing stage, either per-job or through a subscription. Processing sees captured performances uploaded as digital video files through Image Metrics own secure cloud-based portal. The performances are then delivered as an Image

56 | APRIL 2011

WHAT IS IT?: A marker-less facial animation package that leverages video capture technology COMPANY: Image Metrics PRICE: See website www.image-metrics.com

Metrics Performance Data (IMPD) file, which artists can import into Faceware to drive poses they set on their rigs, before defining the relationship of actor to character. Image Metrics, which also still operates as a straight up facial animation service provider using Faceware technology, has also introduced a number of new features to the 3.0 update, the most substantial of which are its automatic pose suggestion functionality and its shared pose database.

in the expense and time drain typically associated with marker-based motion capture, Faceware’s unobtrusive offering may deliver just the solution they are after. www.image-metrics.com

STRIKE A POSE The new ‘auto pose’ feature lets animators reduce production readiness by highlighting the most extreme video performance frames which need to be added as relationship poses. With the poses set in place, re-target results are delivered fast, while rapid iterations of the poses produce additional results in near real-time. Meanwhile, the shared pose database lets lead animators establish a character prior to animation beginning, in a move designed to increase efficiency and consistency. Poses can be committed to a network pool which artists working on all subsequent performances of a given character will be able to access. At that point Faceware 3.0 is able to deliver an initial animated result onto the rig before any artistic iteration. Other updates include a new character setup feature within the re-targeting toolset, a pose-based retargeting interface that lets artists set the relationship between the actor’s performance and the desired animated result on the character, and curve refinement that allows animators to take results output from the re-targeting algorithm and adjust them to suit the intended usage. For those looking for a facial animation solution that negates the need for investing

Faceware’s markerless facial animation offering promises to cause studios that embrace it minimum friction as they familiarise their teams with its nuances. “The biggest change on the day-to-day workflow comes from the fact that this is a performance driven piece of software, meaning somebody will have to adopt capturing video,” confirms Image Metrics technical account director Peter Busch (pictured). It’s a process he is confident is relatively easy to pick up, demanding what is essentially a ‘point and shoot’ process using ordinary video equipment. “A lot of developers have never worked with video, or directed talent, but that’s the biggest change,” Busch insists. “Having been providing this as a service for eight years, we know how to do that really well, so we can run through basic training in an hour and a half. We can do that and have them produce results by the end of the day. It’s really simple to get the hang of, so integrating it into a workflow is easy.”

Go with the workflow


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