Скачать или смотреть Stellar Nursery (Not Really) - Unity ECS (No Sound)

Hi guys, this is an older video of a project I worked on awhile back. I was attempting a gravity simulation between 'stars'. This was also using the early versions of Unity's ECS system and no longer works. I would like to rebuild the demo, adding the features I was unable to before.

Each star was assigned a color and mass randomly, I was attempting to match star type, to its mass range, size, and general color, but that was never fully implemented.

Each and every star, some 5k of them, would calculate its gravimetric pull, and its vector, to each and every other star, and average them all together for a final vector and force value.

It took me awhile, but I eventually also realized I needed to cache the calculation results, then apply them all after all calculations were done so the entire simulation stayed in sync.

In the end I had some 5k 'stars' calculating their positions vs each other star and it was running at about 30 fps. I was using 7 mathematical equations for each pull and vector calculation, making for a total of 170 million calculations per second across all cores (Ryzen 1700x). This of course does not include any calls that relate to language features, variable lookups, or the internals, no rendering calls either, just the math equations used to figure out the pull force and vector.