The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

High-Quality Spatio-Temporal Rendering using Semi-Analytical Visibility

På svenska

Author

Editor

  • Hugues Hoppe

Summary, in English

We present a novel visibility algorithm for rendering motion blur with per-pixel anti-aliasing. Our algorithm uses a number of line samples over a rectangular group of pixels, and together with the time dimension, a two-dimensional spatio-temporal visibility problem needs to be solved per line sample. In a coarse culling step, our algorithm first uses a bounding volume hierarchy to rapidly remove geometry that do not overlap with the current line sample. For the remaining triangles, we approximate each triangle's depth function, along the line and along the time dimension, with a number of patch triangles. We resolve for the final color using an analytical visibility algorithm with depth sorting, simple occlusion culling, and clipping. Shading is decoupled from visibility, and we use a shading cache for efficient reuse of shaded values. In our results, we show practically noise-free renderings of motion blur with high-quality spatial anti-aliasing and with competitive rendering times. We also demonstrate that our algorithm, with some adjustments, can be used to accurately compute motion blurred ambient occlusion.

Publishing year

2011

Language

English

Pages

1-54

Publication/Series

ACM Transactions on Graphics

Volume

30

Issue

4

Document type

Conference paper

Publisher

Association for Computing Machinery (ACM)

Topic

  • Computer Science

Keywords

  • analytical visibility
  • anti-aliasing
  • ambient occlusion
  • motion blur

Conference name

41th International Conference on Computer Graphics and Interactive Techniques, 2014

Conference date

2014-08-10 - 2014-08-14

Conference place

Vancouver, Canada

Status

Published

Research group

  • Computer Graphics

ISBN/ISSN/Other

  • ISSN: 0730-0301