System and method for procedural CG eye meniscus

摘要

Systems and methods are disclosed to provide a highly convenient and practically automated system for creation of highly-realistic menisci for CG characters. Creating the meniscus in the correct place and maintaining its correlation with moving eyes and eyelids was in the past difficult. The systems and methods disclosed provide a highly-realistic way to create and control such features. The systems and methods may create the meniscus in a procedural fashion, allowing the meniscus to properly track movements of character eyes and eyelids and to be animated in a highly-realistic fashion.

主权项

1. A method of creating a meniscus for a computer-generated object, comprising:
in a computer-generated object, for a liquid component surrounded by a surface mesh, automatically identifying a loop of the surface mesh surrounding the liquid component as a locus of points for a meniscus to potentially bind to; dividing the loop into a number of radial edges, and assigning at least one point per radial edge to create a plurality of points, the points for the meniscus to bind to, at least one point of the plurality not in contact with the liquid component; drawing a curve, the curve joining the plurality of points together to form an outer boundary of the meniscus; and lofting the points by a desired distance to create an inner boundary of the meniscus, the inner and outer boundary forming a ribbon around a portion of the liquid component, the ribbon defining the meniscus.