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Vorticle Fluid Simulation Alexis Angelidis February 2015 We present a Lagrangian method for simulating incompressible gases in 3 dimensions. Using the vorticity equation with Lagrangian particles, we create, modify and delete vortices of varying size in a manner that handles buoyancy, boundaries, viscosity and collision with deformable objects using monopoles. Our method scales linearly for parallel processing and provides user controls at varying ... more Paper (PDF) Available as Pixar Technical Memo #15-01 |
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Reduced Boundary Viscosity for Smoke Alexis Angelidis June 2019 We propose a method to reduce viscosity at the boundaries of incompressible flows. Our method allows artists to control the amount of boundary viscosity by mixing a new slip boundary solution with an existing no-slip solution. The cost of our method is an additional pre-computation and a post-computation that can ... more Paper (PDF) Available as Pixar Technical Memo #19-02 |