Multipoint offset sampling deformation techniques

摘要

Systems and methods for performing MOS skin deformations are provided. In one example process, the in vector of a MOS transform may be manually configured by a user. In another example process, a slide/bulge operation may be configured to depend on two or more MOS transforms. Each of the MOS transforms may be assigned a weight that represents the transform's contribution to the overall slide/bulge. In yet another example process, a bulge operation for a MOS vertex may be performed in a direction orthogonal to the attached MOS curve regardless of the direction of the attachment vector. In yet another example process, a ghost transform may be inserted into a MOS closed curve and used to calculate skin deformations associated with first transform of the MOS closed curve.

主权项

1. A computer-implemented method for configuring a skin deformation for a computer-animated character, the method comprising:
accessing, by one or more processors, a character rig representing the animated character and comprising a plurality of bones connected at one or more joints, a plurality of joint transforms, a plurality of control points, and a plurality of skin vertices; receiving, by the one or more processors, a selection of a joint transform of the plurality of joint transforms,
wherein a bulge skin deformation operation of at least one control point of the plurality of control points is controlled by the selected joint transform; receiving, by the one or more processors, input representing user selection of an orientation of a reference vector assigned to the selected joint transform,
wherein a bulge direction of the bulge skin deformation operation of the at least one control point depends on the orientation of the reference vector; determining, by the one or more processors, a deformed position of at least one skin vertex of the plurality of skin vertices by calculating the bulge skin deformation operation of the at least one control point based on the orientation of the reference vector; and displaying skin of at least a portion of the computer-animated character, wherein the displayed skin includes skin at the deformed position of the at least one skin vertex.