# fluid simulation

## A Dimension-reduced Pressure Solver for Liquid Simulations

6d ago
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#### Description

This is the video of our Eurographics 2015 paper (Authors: Ryoichi Ando, Nils Thuerey, and Chris Wojtan) More info: http://ntoken.com/pubs.html#Ando_2015_coarseGrid Abstract: This work presents a method for efficiently simplifying the pressure projection step in a liquid simulation. We first devise a straightforward dimension reduction technique that dramatically reduces the cost of solving the pressure projection. Next, we introduce a novel change of basis that satisfies free-surface boundary conditions {\em exactly}, regardless of the accuracy of the pressure solve. When combined, these ideas greatly reduce the computational complexity of the pressure solve without compromising free surface boundary conditions at the highest level of detail. Our techniques are easy to parallelize, and they effectively eliminate the computational bottleneck for large liquid simulations.