Howard, Heather Vernette (2011-12). Group Based Rigging of Realistically Feathered Wings. Master's Thesis. Thesis uri icon

abstract

  • Digital birds are used in computer graphics to replace live animals both for the

    safety of the animal and to allow for more control over performance. The current

    treatment of avian wings in computer graphics is often over-simplified which results in a

    loss realism due to the incorrect form and motion of the feathers. This research attempts

    to address this problem by using the structure and motion of real bird anatomy to inform

    the creation of biologically accurate kinematic motion for wings. The hypothesis of this

    thesis is that a wing rig which follows biological accuracy will appear realistic in motion

    and facilitate efficient animation. This thesis describes the creation of a rig generation

    tool, called WingCreator, usable in 3D animation software to guide the construction of

    biologically accurate wings while maintaining a range of artistically-driven variability in

    form. The control system for the kinematic motion rig is designed to provide animators

    with intuitive control over wing behavior intended to result in efficient re-creation of

    realistic wing action including flapping and folding. WingCreator was tested by two

    riggers and one animator to gain feedback on the tools efficacy. The user feedback

    indicates that the resulting rig provides a control system that facilitates efficient

    animation while maintaining artistic control over the wing. Users reported that realism,

    however, could not be judged due to the numerous contributing outside factors, such as

    animation, lighting and texturing, that affect the perception of realism. WingCreator and

    its creation methodology is intended to be placed in the public domain for use by anyone

    and will add to the currently slim body of knowledge for creating realistic avian wings.

    Once placed in the public domain it is expected that this rig will be appropriated by

    animators who wish to create more accurate bird wing motion and by riggers who may



    use the biologically-driven methodology as a model for further exploration into

    depictions of other animals exhibiting complex form and structural motion behaviors.

ETD Chair

publication date

  • December 2011
  • December 2011