I create a sphere for my particles and set the material for the particles to “halo”.
How do I keep particles confined to a shape like a glass sphere? For example if the sphere is emitting particles they fall out of the sphere. How do I keep them from exiting the sphere?
How would I get particles to emit from all sides of a sphere?
Here is an implementation that does not allow collecting of particles at the bottom, but it does keep the particles inside the sphere. Kind of like a Snow Globe.
25_snow_globe.blend (590 KB)
Here is another variation as well. This variation collects particles at the bottom, but the collisions are not perfect.
25_snow_globe.blend (449 KB)
Atom, hey thanks so much for these. The first one you posted was exactly how I set mine up but i noticed in your file and in my file some of the particles still pass through the bottom of the sphere instead of being killed on contact. I don’t know if this is a bug or something else. I will try to do a short animation to see if they “leaky” particles are rendering too.