Particle System disappears / Vive

Development Platform & Builds XR Development
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1

Hello everyone,

i have a strange issue on my particle system. I’m trying to create this typical light beam for a VR Movement, so that you can see a parabol curve. Now in most cases everything works fine but sometimes (often after a 180° Rotation with my vive) Unreal doesn’t render the particle system anymore. First I thought that source and target points are incorrect. But I didn’t find any errors. So I was wondering if the issue is only on my beam. So I added a second emitter next to my beam. Back in my scene i moved arround and until the beam was invisible, the second emitter was invisible too. So the hole particle system is not visible or unreal doesn’t render it. What can I do and what is the problem?

Thank you :-).

2

Particle systems stop rendering if UE4 thinks they are off screen. Try adjusting the bounding box of the particle system to be larger.

3

Note: be sure to reboot ue4 after setting the bounds, else they wont work properly.

4

I thought that a bounding box is only required for a GPU emitter? I can’t find bounding settings for my beam either :-(.