I am having trouble getting a rain particle effect I bought to show up. I would email the UnityPrefabs folks but I heard they are on vacation and I imagine I’m making a simple dumb mistake so I’m hoping this is easy for many of you here. 
I have the rain in my scene and expanded it to cover a larger area. When the particle effect is selected in the hierarchy I can see the rain in the editor window. When I press play I do not see the rain in the game window nor do I see it when I build to my 3rd gen device. I also do not see it in the editor when I press play if the rain is not selected in the hierarchy.
I’m hoping this is a simple mistake, I’m still new to particle effects in Unity.
Thanks!
Josh
How much did you expand the emitter? Check the size of the camera view frustum in the scene view (try selecting the emitter, letting it “rain” for a bit and then selecting the camera object). It could be that the system is visible at a distance in the scene view, but the particles are too sparse in the actual view. Increasing the size of the rain particles might improve the effect or at least help diagnose what is going wrong.
It is common to have a particle system parented to the camera to create the effect of rain. This means the rain is always visible, but doesn’t need to be generated across the whole scene.
It was the size of the particles in case anyone else runs into this. Thanks for your help!
Josh