Convective clouds

Authors:
Robert Geist;Jay Steele;James Westall
Affiliations:
School of Computing, Clemson University, Clemson, SC;School of Computing, Clemson University, Clemson, SC;School of Computing, Clemson University, Clemson, SC
Venue:
NPH'07 Proceedings of the Third Eurographics conference on Natural Phenomena
Year:
2007

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Abstract

A new technique for rendering convective clouds is suggested. The technique uses two lattice-Boltzmann (LB) models, one for generating the spatial and temporal distribution of water density and the other for photon transport, that is, lighting the water density with correct anisotropic scattering. The common LB structure is easily mapped to parallel execution environments such as a GPU or multiple CPUs connected via the Message Passing Interface (MPI), thereby providing sub-minute execution times on commodity hardware.