In the beginning of this video: Dreams - Beck - YouTube
I'm new to after effects and I'm sure there are plenty of tutorials for similar things to this. I'm just not even sure what to search to find them. What's being done here?
I'd guess this was done with some stoke footage of smoke used as a luma matte. Basically just load some good smoke footage, put it in a layer above the one you want the effect on then change the lower layer's track matte setting to "Luma"
Here's some free stoke footage https://vimeo.com/search?q=free+stock+smoke
Thanks! I'll give that a shot
Edit: This worked. Turned out to be really simple.