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Interactive sound rendering in complex and dynamic scenes using frustum tracing.

Christian Lauterbach1, Anish Chandak, Dinesh Manocha

  • 1Department of Computer Science, University of North Carolina-Chapel Hill, 27599, USA. cl@cs.unc.edu

IEEE Transactions on Visualization and Computer Graphics
|October 31, 2007
PubMed
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This study introduces a novel method for real-time sound propagation simulation in virtual environments. The approach efficiently combines ray tracing with volumetric data for accurate, interactive audio rendering.

Area of Science:

  • Computer Graphics
  • Acoustics
  • Virtual Reality

Background:

  • Simulating sound propagation in complex virtual environments presents computational challenges.
  • Existing methods often struggle to balance accuracy with real-time performance.

Purpose of the Study:

  • To develop an efficient and accurate algorithm for real-time sound propagation simulation.
  • To enable interactive rendering of dynamic sound in complex virtual scenes.

Main Methods:

  • Combines interactive ray tracing with volumetric representation tracing.
  • Utilizes four-sided convex frustums and ray packet tracing for clipping and intersection tests.
  • Employs a hierarchical traversal approach with efficient secondary frustum computation.

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Main Results:

  • Demonstrated real-time simulation and rendering capabilities.
  • Successfully applied to complex environments and architectural models with numerous triangles.
  • Achieved interactive performance on a high-end PC.

Conclusions:

  • The proposed algorithm offers a viable solution for real-time sound simulation in demanding virtual environments.
  • The method effectively handles dynamic sources and objects for immersive audio experiences.