Shallow Water Simulator, OpenCL + Rigid Body Interaction
Just a quick update to post a video of my current progress on my shallow water simulator.
Recently I converted the simulator to OpenCL(from plain C# code) and added rigid body to water and water to rigid body interaction. The conversion to run in parallel was very straightforward, for the rigid body interaction I subdivide the collision shapes into triangles when they first touch the waters bounding box, then just process each triangle separately using atomic operations to update the height and velocity fields. I need to investigate the performance in more detail and generally optimize things, but the initial conversion seems quite fast(the ducks scene runs at 45+fps when not recording video).
I have also added FFT wave simulation for small scale details and/or providing a nice water effect when interaction is not needed(although this is not shown in the video). You can find further details about this method at http://tessendorf.org/ .
