A Simple Surface Tracking Method for Physically-Based 3D Water Simulations

Amador, G.; Gomes, A.

A Simple Surface Tracking Method for Physically-Based 3D Water Simulations

Files

127-133.pdf (1.29 MB)

Date

2021

Authors

Amador, G.
Gomes, A.

Publisher

The Eurographics Association

Abstract

Water simulation, and more generically fluid simulation, is an important research topic in computer graphics. In 3D Eulerian Navier-Stokes-based water simulations, surface tracking and rendering are two delicate problems. The existing solutions to these problems (i.e., implicit surfaces-based approaches, height-fields, ray-tracing), are either to computationally intensive for real-time scenarios, or present bulge water surfaces (i.e., blobby water surfaces). In this paper, we propose a novel tracking algorithm for rendering water surfaces. Instead of tracking the flow of water using either level sets or height-fields, each cell of an 3D grid density value is directly measured in order to determine if it is either water, air, or water-air contact surface. The information in each cell is later used for the water surface splat rendering, using OpenGL vertex buffer objects.

        @inproceedings{10.2312:pt.20111139
,
booktitle = {V Ibero-American Symposium in Computer Graphics
},
editor = {Silva, F. and Gutierrez, D. and Rodríguez, J. and Figueiredo, M.
},
title = {{A Simple Surface Tracking Method for Physically-Based 3D Water Simulations
}},
author = {Amador, G. and 
Gomes, A.
},
year = {2021
},
publisher = {The Eurographics Association
},
ISBN = {978-3-03868-152-6
},
DOI = {10.2312/pt.20111139
}
}