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Summary:
The Bend/Twist SOP can be used for a wide variety of situations that may require simple deformations. If you forget what bend / twist / taper does, just look at the icons in the user docs. Those little icons describe what kind of deformation those things do quite well. In general, it's important to set a proper capture region when using this node. The second input expects geometry in the rest pose, and that information can be used to improve the quality of the deformation as well as generate attributes which relate to the deformation.
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General Parameters:
This is one of those nodes that best understood when visually examining the various settings. So, for this Node Bible entry, please refer to the videos as they will provide the best explanation.
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