Channel: Kostack Studio

Category: Film & Animation

Tags: cgisimulationvfxsphgalaxy clusterbig bangblenderspaceanimation3dnasagravityphysicsparticlesgalaxy

Description: Did you know that smoothed-particle hydrodynamics (SPH) can not only be used for simulating fluids but also for making galaxy clusters? This video was made with a slightly modified Blender version (to lift some restrictions*) but without any additional code. It took around 24 hours and 64 GB of RAM to simulate. Best watched in 4K. Enjoy! Music: No Secrets by GoSoundtrack (CC BY) Made with Blender * To allow for more neighbor particles line 1542 in particle_system.c: #define SPH_NEIGHBORS 512 has been changed to: #define SPH_NEIGHBORS 128000 A comment in the code explains the problem: "If some [neighbors] aren't taken into account, the forces will be biased by the tree search order. This effectively adds energy to the system, and results in a churning motion. But, we have to stop somewhere, and it's not the end of the world. - jahka and z0r"