Google Research

Wind Erosion: Shape Modifications by Interactive Particle-based Erosion and Deposition

  • Vojtech Krs
  • Torsten Hädrich
  • Dominik L. Michels
  • Sören Pirk
  • Bedrich Benes
Eurographics / ACM SIGGRAPH Symposium on Computer Animation - Posters (2020)


A novel user-assisted method for physics-inspired modeling of geomorphological features on polygonal meshes using material erosion and deposition as the driving mechanisms. Polygonal meshes that define an input scene are converted into a volumetric data structure that efficiently tracks the mass and boundary of the resulting morphological changes. We use Smoothed Particle Hydrodynamics (SPH) to simulate fluids and to track eroded material. Eroded material is converted to material particles and naturally deposits in locations such as sinks or corners. Once deposited, we convert material particles back into the volumetric representation.

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