Hey guys,
i developed a rain shader yesterday and i want to share the technique with you
Here is a little tech-demo with the shader and setup code.
Have fun with it!

Download here!


The rain itself is a simple effect. The system renderns some cylinder shapes around the camera and uses triplanar texture mapping for the rain texture. Now this texture gets blended additive to the screen. Looks pretty good and eats a lot less power than particles

Greets!
Felix