At the moment it’s not possible to get a particle effect to appear at an outer-most point, sending particles towards an origin point. (Reverse particle direction)
I had an idea involving a way to make the speed property of particles negative. What this would do is simply make the particle’s position the same as if it were at the end of its lifetime at a positive speed (so in a way, pre-calculate the end position of the particle) and then move it towards the emitter’s origin.
This is a fairly simple idea in terms of explanation but it would make room for quite a few effects that developers can use. Many effects people would love to make rely on this out->in direction, so I think the use cases are more than present enough for a demand on this feature.
What do you all think?