INT. SHOWER with effect HARD RAIN #zoom command #place character(s) into scene #scene for when they’re in the shower
INT. SHOWER #can re-write background name without weather effect so they are finished ‘showering’ or write a new background #zoom command #place character(s) into the scene #new scene
BTW you can name your background anything (must start with INT. or EXT.) and there are other rain effects available depending on how much rain you want to fall.