This is the rain setup I used in my Rain image. I recommend using defer atmo/clouds to make it less noisy. You may increase the cloud's density depending on your scene. If you want more or less rain play (carefully) with the density fractal's coverage adjust setting.
wow thx! :)
Thank you, Hannes. Good to have this at hand.
Very nice. Thank you for sharing this.
Here's an animated version (400 frames).
Thank you very much.
oooh, scary, now I have to do an animation to test it...see y'all next year....kidding. Thanx Hannes