I am writing a 2D game in UE4 (4.25.2) and C++. I am playing with particles for the first time and my particle does not appear in the level.
I spawn my particle system using:
ParticleComponent = UGameplayStatics::SpawnEmitterAttached(ParticleTemplate, RootComponent, NAME_None, GetActorLocation(), GetActorRotation(), EAttachLocation::KeepWorldPosition, false);
ParticleTemplate is my particle system, which loads correctly as the pointer is valid. It contains a material that was generated from a 2D texture.
Putting this aside, I tried simply to drag my particle asset into the level and as expected, it animates just fine in the viewport.
If I play “Simulate” then the particle appears fine in the level while my game is playing.
If I then try play in “Selected Viewport”, “New Editor Window” or “Standalone Game”, then this dragged in particle asset does not appear.
I thought it could be a 2D camera issue, but I tried changing the camera back to perspective mode and I still don’t see this dragged in particle.
Back to my code, it appears SpawnEmitterAttached() is returning null, which I don’t know why.
So go get around that, even if I create the UParticleSystemComponent by hand in the code and set up all the variables (as per the UE4 source code), and I have what looks like a valid component, even then the particle does not spawn in my game.