Papers and Presentations

Last Updated: 8/02/10

This page contains papers and presentations we've authored on topics related to virtual globes and real-time graphics.

Contents

2010

2009

2008


2010

GPU Ray Casting of Virtual Globes

SIGGRAPH 2010 Poster Session - 07/2010

Abstract: Our work presents a GPU ray casting approach to rendering the ellipsoidal surface of virtual globes that provides an infinite level of geometric detail at frame rates competitive with traditional tessellation and rasterization approaches. This work has application in areas including globe rendering for geographic information systems and video games.





Introduction To Geometry Shaders [ppt]

Guest lecture in CIS 665: GPU Programming and Architecture
at the University of Pennsylvania - 04/2010




Z-Buffer Optimizations [ppt]

Guest lecture in CIS 665: GPU Programming and Architecture
at the University of Pennsylvania - 04/2010



2009


Introduction to Massive Model Visualization [ppt]

Invited talk for the Computer Science Colloquium
at Villanova University - 03/2009



2008


Visibility Driven Out-of-Core HLOD Rendering [ppt | pdf]

Master's Thesis Defense at the University of Pennsylvania - 12/2008

Abstract: With advances in model acquisition and procedural modeling, geometric models can have billions of polygons and gigabytes of textures. Such model complexity continues to outpace the explosive growth of CPU and GPU processing power. Brute force rendering cannot achieve interactive frame rates. Even if these massive models could fit into video memory, current GPUs can only process 10-200 million triangles per second. Interactive massive model rendering requires techniques that are output-sensitive: performance is a function of the number of pixels rendered, not the size of the model. Such techniques are surveyed, including visibility culling, level of detail, and memory management. In addition, this work presents a new out-of-core rendering algorithm that is demonstrated with a variety of HLOD rendering algorithms.


Videos