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Interactive ray tracing of point-based models

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2 Author(s)
I. Wald ; Max-Planck-Inst. fur Inf., Saarbrucken, Germany ; H. -P. Seidel

Point-based methods have recently gained significant interest, as their simplicity and independence of connectivity make them a simple and powerful tool in both modelling and rendering. Still, their use for high-quality and photorealistic rendering is still in its infancy, in particular for interactive applications. This paper describes a framework for interactively ray tracing point-based models based on a combination of an implicit surface representation, an efficient surface intersection algorithm, and a specially designed acceleration structure. Using this framework allows for interactively ray tracing even highly complex models on a single PC, including global illumination effects and the interactive visualization of a 24-million-point model with ray traced shadows.

Published in:

Proceedings Eurographics/IEEE VGTC Symposium Point-Based Graphics, 2005.

Date of Conference:

20-21 June 2005