It's slightly a mod to minecraft. It's like texture packs, but make your game look a lot better. This one is the "Acids" version of one that makes the map bend and turn around you.
Omg I used one of these, it did that as well as where you were standing at the point, you were ontop of the world- like a hill. It was super trippy, I loved it but my computer could never handle it ;w; I also went onto Super Secret Settings and used that rainbow swirly one so it was super weird XD
I've made my own custom ones from combining others and editing them. I'll give this one a try when I get home.
It's like a mod for Minecraft. Try looking up some videos on them. They are great if you can run them, and they even make some that don't lag they say.
i dont really like unrealistic shaders. I used to use a cad program to create houses and things, and use renders to make them look realistic and it was the best part. So realism is best