Interactive Silhouette Rendering for Point-Based Models
Author(s): Hui Xu, Minh X. Nguyen, Xiaoru Yuan, Baoquan Chen.
Proceedings: Proceedings of Symposium On Point Based Graphics, ETH Zurich, Switzerland, June 2-4,
2004.
[BibTeX]
Abstract:
We present a new method for rendering silhouettes of point-based models. Due to the lack of connectivity information, most existing polygon-based silhouette generation algorithms cannot be applied to point-based models. Our method not only bypasses this connectivity requirement, but also accommodates point-based models with sparse non-uniform sampling and inaccurate/no normal information. Like conventional point-based rendering, we render a model in two passes. The points are rendered as enlarged opaque disks in the first pass to obtain a visibility mask, while being rendered as regular size splats/disks in the second pass. In this way, edges are automatically depicted at depth discontinuities, usually at the silhouette boundaries. The silhouette color is the disk color used in the first pass rendering. The silhouette thickness can be controlled by changing the disk size difference between two passes. We demonstrate our method on different types of point-based models from various sources. The simplicity of our method allows it to be easily integrated with other rendering techniques to cater to many applications. Our method is capable of rendering large scenes of millions of points at interactive rates using modern graphics hardware.
Interactive Stylized Silhouette for Point-Sampled Geometry
Nordin Zakaria, Hans-Peter Seidel.
2nd international conference on Computer graphics and interactive techniques in Austalasia and Southe East Asia, pp. 242--249,
2004. [BibTeX]
Is That a Smile? Gaze-Dependent Facial Expressions
Vidya Setlur, Bruce Gooch.
3rd International Symposium on Non-Photorealistic Animation and Rendering (NPAR'04), Annecy, France,
2004. [BibTeX]
Messa di Voce
Golan Levin, Zachary Lieberman.
Report describing Messa di Voce,
2004. [BibTeX]
Methods for Exploring Expressive Stance
Michael Neff, Eugene L. Fiume.
Eurographics Symposium on Computer Animation,
2004. [BibTeX]
Modelling and Animating Cartoon Hair with NURBS Surfaces
Paul Noble, Wen Tang.
Computer Graphics International (CGI'04), pp. 60--67, June,
2004. [BibTeX]
Motion Doodles: An Interface for Sketching Character Motion
Matthew Thorne, David Burke, Michiel van de Panne.
ACM SIGGRAPH 2004,
2004. [BibTeX]
Mouthbrush: Drawing and Painting by Hand and Mouth
Chi-ho Chan, Michael J. Lyons, Nobuji Tetsutani.
5th international conference on Multimodal interfaces, Poster Session, pp. 277--280,
2004. [BibTeX]
MultiCam: A System for Interactive Rendering of Abstract Digital Images
Jeffrey Smith, Ergun Akleman, Richard Davison, John Keyser.
Bridges: Mathematical Connections in Art, Music, and Science 2004, pp. 265--272, Winfield, Kansas, August,
2004. [BibTeX]
Non-Photorealistic 3-D Facial Animation on the PDA based on Facial Expression Recognition
Soo-Mi Choi, Yong-Guk Kim, Don-Soo Lee, Sung-Oh Lee, Gwi-Tae Park.
International Symposium on Smart Graphics,
2004. [BibTeX]