Computer science colloquia: Chris Wyman
| Date/Time: | Thursday, 07 Oct 2010 at 3:40 pm |
|---|---|
| Location: | B29 Atanasoff |
| Cost: | Free |
| Phone: | 515-294-6516 |
| Channel: | College of Liberal Arts and Sciences |
| Categories: | Lectures |
| Actions: | Download iCal/vCal | Email Reminder |
For interactive applications, the costs of shading individual pixels is almost always the bottleneck in the rendering pipeline. This is especially true when this shading involves solving or approximating complex integrals, such as the "rendering equation" that describes the movement of light through a scene.
This talk will explore our research from the past few years that looks to speed this process by creating hierarchies that reduce the number of pixels processed, yet remain amenable to efficient GPU computation. In particular, we have found that building these hierarchies in image space dramatically reduces costs (due to the dimensionality reduction from 3D to 2D) yet provides acceleration for a variety of challenging problems, ranging from diffuse illumination to caustics to participating media.
Wyman's specialty is computer graphics, in particular interactive rendering of realistic images, though his interests and expertise include other realistic and interactive rendering problems, general purpose computations on GPUs and other stream processors, and visualization.
Before joining the faculty at Iowa, Wyman studied at the University of Utah's School of Computing (Ph.D. 2004) and the University of Minnesota (B.S. 1999).