env_rain

Creates rain conveyors automatically in outdoor areas. Demo video:

To change density, replace the rain models with a .gmr file (models/hlcoop_v2/weather/rain*.bsp). The rain texture can be swapped out with bspguy (right click image -> import). Splash sounds can be replaced with a .gsr file (sound/hlcoop/weather/rain*.wav).

There is an env_snow entity too but it looks bad in maps that aren't totally covered in snow textures. The snow isn't moving like I want either.

Keyvalue	Description
targetname	Name used to toggle rain on/off.

Spawnflag	Description
1 : Start off	Rain starts disabled.