Right now, I found this nice resource again - http://myplace.frontier.com/~chooks9592/manual/html/imblend.html
The problem here is that I can’t download the library here. I’m interested in trying to recreate some of those.
I found functions next to overview. Never mind. But, this thread can be used to see people recreating those.
Made zblend for gmic - http://myplace.frontier.com/~chooks9592/manual/html/zblend.html - New Filter Z-Time by Reptorian1125 · Pull Request #212 · dtschump/gmic-community · GitHub
Found a interesting use of Z-Time filter, when you use different gradients for every layer, and repeat assuming continuous gradient, it can look like this -
I might make an advanced gradient filter that utilize this.