Using Cascade I want to emit just one sprite and keep its lifetime for eternity. Is this possible?
You might say why dont you just put a mesh plane out there with a material on it. I guess this could be the normal approach but I want to do it with a particle.
You can use a Burst spawn, of just 1. Then set the lifetime to infinite.
To recap:
Inside of the “Spawn” module details panel. Make sure your Rate is set to zero. Then under the “Burst” category. Create a burst list with a single count.
Next, click on the “Lifetime” module and change the lifetime to zero, which correlates lives forever.