I have a Rain particle, with 2500 units of Cylinder radius. Setup the collision module, with kill event. And a lot of rain drops leak trough [24024-capturar.jpg] roof.

Hey - I will try to address the issues as you listed the above: The shadows from clouds and the shadow flickering are both a result of fixed bounds issues. I will try to address them more directly in your other issue, but you can set the fixed bounds to an large amount and this should help some,…