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Indigo Ray wrote:
 This is cool, better than any other rain-on-window filter i searched up. smile:) Two ideas I have for this are to collect adjacent raindrops into bigger ones (water sticks to itself), and those little lines you get when drops slide down the glass. | 
Hi, thanks for the suggestions. I've tried doing this now and just sent the update 

 The lines was not a big problem, though they require some slider tweaking to look ok. Best I could come up with to make the drops gather is sort of making them more blob-like (instead of just round or oblong). I am still a big noob at this so will try to improve the filter more as I learn more