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Methods for Fast Skeleton SketchingMartin Poirier and Eric Paquette,ACM SIGGRAPH, SIGGRAPH 2009 Conference, Talks Session, New Orleans, USA, 3-7 Aug, 2009. |
This work introduces different methods and concepts defining a fast and effective sketching interface for skeleton creation, including stroke embedding methods and a full-featured templating system. The defined paradigm allows the user to rapidly create a stroke which is semi-automatically converted to a skeleton. The method is based on a sketching interface that provides several input tools such as freehand strokes, polylines, stroke corrections, gestures, and automatic stroke embedding. From a stroke, the method create a skeleton based on various approaches such as direct polyline to bones, rule based automatic subdivision, and template retargeting. Tests were conducted with a number of professional users. The template retargeting method proved to be particularly useful when retargeting many similar limbs. Our preliminary study shows a promising increase in productivity, cutting down the time taken by the rigging process by an estimated 10 to 50%. We demonstrate through examples and professional user testing that a sketching metaphor can be adapted to deformation skeleton creation to definitely speed up the creation and adaptation process in a fluid and effective way. Our implementation can rig typical characters with the use of an effective stroke embedding method and with automatic user-definable template retargeting.
@InProceedings{Poirier:2009:GI, author = "Martin Poirier and Eric Paquette", title = "Methods for Fast Skeleton Sketching", booktitle = "ACM SIGGRAPH, SIGGRAPH 2009 Conference, Talks Session", year = "2009", }
PDF of the paper.
Slides from the presentation.
The sketching interface is fully implemented in Blender.
Video presenting the approach and demonstrating the results: