I need a short clip of rain with clouds in the background. I've searched the internet but couldn't find anything that would be good enough. I've found rain clouds and rain animation though so in an act of desperation I decided to match those two myself. It took me a while to find a program that would be free and able to create what I need and to find out how to make such thing since I know absolutely nothing about editing movies, making and adding effects, none, zero. But I managed to add the rain footage to background with clouds and I was very happy until I tried to render it and saw the end result which was horrible. Maybe the clouds and the rain didn't have a super quality but it was good enough for my needs. After putting the two together I got a really bad quality - pixels all over it and instead of 6 minutes I got only 30 seconds of it. And the thing, 30 seconds, is over 800MB big. That is a huge file of something that is not really usable.
Can someone help me resolve that mystery? I've tried many things but I had to give up. It's hard to find something when you don't even know what are you looking for. I've used Blackmagic Fusion 7.5 and that's the only program I have installed.
Or maybe someone has a clip that would be good for what I need? Or can make me one? That would be even better but I'm not counting on much since all I can offer you for that is "thank you".
I really need to have that thing by next Saturday otherwise it'll be bad. So please, please help.