RENDERMAN IT SWIPE SOFTWARE
With this unique photographic technique in place, the semi-transparent ghostly look was achieved digitally by using proprietary tracking soft- ware combined with optical-flow software to track movement of selected points from frame to frame. With a special light mounted on the motion-control camera, these beads would light up and sparkle. To achieve an ethereal, yet energetic look, costumers painted microscopic glass beads known as Scotchlite on each ghost’s costume, causing light to reflect right back to its source. When ghosts are seen interacting with other ghosts and humans, to preserve transparency, the team used 3D roto processes. A combi- nation of SteadiCam, real-time motion control and bluescreen photog- raphy was used in shooting the “ghosts.” For the cemetery sequence, the team used a 360-degree bluescreen stage and composited 60+ separate blue-screen passes together for the final shot. Seamlessly combining practical and digital effects, Imageworks artists conjured up nearly “999” ghostly effects for the film. More animation videos from SIGGRAPH 2004: Outstanding Doctoral Dissertation Award.Electronic Theater Best Student Project.View All Conference-Related Electronic Media Publications.Film and Video Show & Electronic Theater Catalogs.
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