@inproceedings{Coleman:2004:RRA,
  optorganization = {},
  author = {Patrick Coleman and Karan Singh},
  optkey = {},
  optseries = {},
  editor = {Aaron Hertzmann and Craig Kaplan},
  localfile = {papers/Coleman.2004.RRA.pdf},
  address = {New York},
  publisher = {ACM Press},
  optmonth = {},
  doi = {http://doi.acm.org/10.1145/987657.987678},
  opturl = {},
  optcrossref = {},
  booktitle = NPAR2004,
  optstatus = {},
  optvolume = {},
  title = {{RYAN}: {R}endering {Y}our {A}nimation {N}onlinearly projected},
  optnumber = {},
  abstract = {Artistic rendering is an important research area in Computer
              Graphics, yet relatively little attention has been paid to the
              projective properties of computer generated scenes. Motivated by
              the surreal storyboard of an animation in production—Ryan—this
              paper describes interactive techniques to control and render
              scenes using nonlinear projections. The paper makes three
              contributions. First, we present a novel approach that distorts
              scene geometry such that when viewed through a standard linear
              perspective camera, the scene appears nonlinearly projected.
              Second, we describe a framework for the interactive authoring of
              nonlinear projections defined as a combination of scene
              constraints and a number of linear perspective cameras. Finally,
              we address the impact of nonlinear projection on rendering and
              explore various illumination effects. These techniques,
              implemented in Maya and used in the production of the animation
              Ryan, demonstrate how geometric and rendering effects resulting
              from nonlinear projections can be seamlessly introduced into
              current production pipelines.},
  year = {2004},
  pages = {129--138},
}