I use particle system to visualize the 3D force field physics effect, mainly for the wind field. The movement of the particles are used to represent the force field.
Now I have 3D wind field data for Asia continent. I am planning to put about 50000 particles, because the area is very large. With so many particles(billboards), I wonder whether cesium will take a long time to render them.
So I think the particle system is optimized for this kind of use case, but I don’t know of its specific benchmarks/it will vary depending on whether you’re testing on a desktop, or mobile device etc.
The good news is Cesium has definitely been used to simulate and visualize these sorts of wind fields before. Here’s one I found from a quick google search:
I can see that they’re using geometry/primitives in order to get the maximum performance. So I would try with particles, and if you’re experiencing a slow down, you might try using the primitives directly. This is a good guide on that: