I am not sure if this has been posted before. I only found the topic that is related to the particles system...
My question is:
How can I create drops of water (blood) that are running down the screen?
It should have a realistic look.
I know this effect from some of the modern video games for example.
The raindrops should move slowly down the screen. There should be a kind of reflexion and distortion caused by the water surface. It is hard to explain for me.
something like this:

any ideas are welcome... thanks in advance,
Volker