Call for Papers

Non-Photorealistic Animation and Rendering 2012

Submission deadline March 16, 2012

We invite you to submit your work to NPAR 2012, the 10th international symposium dedicated to non-photorealistic animation and rendering, sponsored by ACM SIGGRAPH and in cooperation with Eurographics.

Non-Photorealistic Animation and Rendering (NPAR) refers to computational techniques for visual communication. Such techniques usually generate imagery and motion which is expressive, rather than photorealistic, although they may incorporate realistic elements.

NPAR 2012 is part of Expressive 2012, a joint symposium that combines NPAR with Computational Aesthetics (CAe) and Sketch-Based Interfaces and Modelling (SBIM).  It will be co-located with the Annecy Film Festival and will take place in Annecy, France, June 4-6, 2012.  A single registration for Expressive 2012 will include all three symposia.  The Expressive 2012 web site can be found at  Because accommodations during the Annecy Film Festival are at a premium, we strongly urge those submitting work to reserve a room through the festival web site at the time of submission, and then cancel their reservations should they decide not to attend.

We invite researchers, artists, and practitioners of all areas connected to non-photorealistic animation and rendering to submit papers and posters on their work. Submitted papers should be self-classified into one of the following three categories:

  • Research: new algorithms, scientific studies, analysis, or data (i.e., traditional NPAR papers) These must contain novel results that make a substantitive contribution to the field.
  • Production: candid discussion of the process of creating a work (e.g., film, image, game) or art tool (e.g., paint or CAD program, software library).
  • Meta: statements about research that do not contain new results, e.g.: grand challenges, position papers, evaluation standards, surveys, and primers on art / aesthetics / psychophysics for a computer science audience.

All work must be previously unpublished and contain a novel contribution. Production and Meta papers need not contain original research or results.

Topic areas of the conference include but are not limited to:

  • Expressive character animation and physics
  • Abstraction and stylization of images/video
  • Interaction techniques
  • Accounts of real productions (e.g., animated films)
  • NPAR in real software products (e.g., modeling, visualization, presentation software)
  • Visual composition
  • Hardware acceleration
  • Evaluation methods for NPAR algorithms
  • Psychophysics of NPAR
  • Rendering and layout for text and presentation graphics
  • Quantitative analysis of human artists
  • Generative or evolutionary approaches
  • Style transfer
  • Temporal and spatial coherence
  • Adapting classic CG effects like motion blur, depth of field, and lighting for NPAR
  • Simulation of natural media and traditional styles
  • Non-traditional camera models
  • Position papers on grand challenges

There is no absolute maximum length for paper submissions; please use the Siggraph length guidelines, found here:  In particular, note that papers longer than 8-10 pages must make a very significant contribution to be accepted.  Papers should follow the ACM SIGGRAPH-sponsored conference formatting instructions (, including a title page with an abstract and keywords, and a bibliography. The submission is electronic in PDF format; supplemental video and images may also be submitted. Research papers are reviewed double-blind and so must be anonymous when submitted. Meta and Production papers are reviewed single-blind and the author’s reputation and institution are a factor that reviewers may consider.

Submissions will be re-opened after the SIGGRAPH notification date, and rejected papers may be re-submitted until April 3 at 5PM Pacific Daylight Time. These submissions should include the SIGGRAPH reviewer’s comments. If the authors have revised the paper since SIGGRAPH submission, the NPAR submission should include the original SIGGRAPH submission and a file documenting the changes that were made.

The authors of the best papers will be invited to submit extended versions to a special section in Elsevier’s “Computers and Graphics” journal with a fast-track review process.

Accepted papers will be published in the conference proceedings by ACM SIGGRAPH and will be available online via the ACM Digital Library. Posters will not be archived. Posters may be submitted in PDF format as either an extended abstract or as a draft of the poster itself. Rejected papers may be considered for the poster track.

Note that although the NPAR, SBIM and CAe symposia are held jointly, the paper submission and review processes are independent.

Important Dates

Papers submission deadline: March 16, 2012

Short track for SIGGRAPH rejected papers, with reviews:  April 3, 2012

Accommodation Reservation:  April 3, 2012

Acceptance notification:  April 23, 2012

Papers Camera-ready deadline:  May 1, 2012

Poster submission deadline:  May 7, 2012

Conference: June 4-6, 2012

All deadlines are at 17:00 (5pm) Pacific Daylight Savings Time.

Important URLs

Expressive 2012:

Annecy Film Festival:

SIGGRAPH-sponsored conference formatting instructions:

SIGGRAPH 2012 publication requirements:

Paper submission web-site:


Conference Chairs:

Paul Asente, Adobe Systems Inc, USA
Cindy Grimm, Washington University in St. Louis, USA

Posters Chairs:

Holger Winnemöller, Adobe Systems Inc, USA
Jan Eric Kyprianidis, Hasso-Plattner-Institut, Germany