I'm fairly new to this so it's probably not the hardest question. I have a xpEmitter and its working fine. Now i want to add trails to the particles So i added an xpTrail, linked the emitter to it and when I hit play I see the trails animating but when I render a frame I only see the particles without any trails.
the trails are splines and splines don't render by themselves. You need to put the splines (the trail object) in a Sweep or XPSkinner for actual geometry or add an xpMaterial or Hair material to the xpTrail to see just the splines rendered or use Sketch and Toon to render the splines