Coding Adventure: Simulating Fluids

Let's try to convince a bunch of particles to behave (at least somewhat) like water. Source code: Currently in early access to supporters on Patreon and Ko-Fi, but will be available to everyone from 22nd October. If you'd like to support me in creating more videos like this, you can do so here: https://www.patreon.com/SebastianLague https://ko-fi.com/sebastianlague Resources: https://matthias-research.github.io/pages/publications/sca03.pdf http://www.ligum.umontreal.ca/Clavet-2005-PVFS/pvfs.pdf https://sph-tutorial.physics-simulation.org/pdf/SPH_Tutorial.pdf web.archive.org/web/20140725014123/https://docs.nvidia.com/cuda/samples/5_Simulations/particles/doc/particles.pdf Music: https://github.com/SebLague/Misc-Project-Info/blob/main/Coding-Adventures/Fluid-Sim.txt Chapters: 0:00 Intro 0:27 Gravity and Collisions 2:31 Smoothed Particles 3:55 Calculating Density 7:53 The Interpolation Equation 11:58 Gradient Calculations 15:38 The Pressure Force 19:19 Trying to Make it Work... 22:05 Optimizing Particle Lookups 26:31 Spatial Grid Code 27:48 Position Predictions 30:32 Mouse Force 33:22 Artificial Viscosity 36:46 Pressure Problems 39:51 Bugs 41:06 Parallel Sorting 43:22 Some Tests and Experiments 44:47 The Third Dimension 47:23 Outro