Categories: GPU Computing, Game Development, Microsoft DirectX, Programming Tags: directcompute, fluid, gpu computing, navier-stokes, physics, simulation
Wavelet Turbulence for Fluid Simulation
Appearing in SIGGRAPH 2008.
We present a novel wavelet method for the simulation of fluids at high spatial resolution. The algorithm enables large- and small-scale detail to be edited separately, allowing high-resolution detail to be added as a post-processing step. Instead of solving the Navier-Stokes equations over a highly refined mesh, we use the wavelet decomposition of a low-resolution simulation to determine the location and energy characteristics of missing high-frequency components. We then synthesize these missing components using a novel incompressible turbulence function, and provide a method to maintain the temporal coherence of the resulting structures. There is no linear system to solve, so the method parallelizes trivially and requires only a few auxiliary arrays. The method guarantees that the new frequencies will not interfere with existing frequencies, allowing animators to set up a low resolution simulation quickly and later add details without changing the overall fluid motion.
Links:
- Whitepaper – PDF
- Video
Thanks to tho for sending us the new.
Categories: Programming Tags: fluid simulation, navier-stokes, wavelet
