Hey all.
I’m attempting to get a number of GPU Sprite Particles to collide with a landscape (think like snow hitting it and staying), and all it seems to do is pass through instead of stopping. Response is set to stop with Scene Depth.
Would love to hear any ideas you guys may have!
Mak
I am thinking of one important thing - when set to GPU particles, the particles has to be visible to camera. Check out this video, you’ll find your answer how to work-around it there: Particle Effect Collision | Live Training | Unreal Engine - YouTube
If particles are not colliding at all, you’ll find answer there as well for sure. 
Hey Holsoft, thanks for this. Sadly no luck, they keep flying right the way through, despite being set to Stop.
I can now confirm that the GPU Particle System doesn’t collide with a standard cube either. I thought maybe the Landscape mesh was too complex, but it seems to be a problem with the particle system.
You may want to try testing one of the particle systems from the Starter Content like P_Sparks since this has scene depth collision setup for the GPU. If this is working and colliding with the static meshes and landscapes then you’ll have a basis to start investigating your own particle system collision. If the collision isn’t working, there is likely something no working properly with your editor that can be looked into.
Try this: