Mirage lets you animate Minecraft structures. Just give it enough nbt structure files... To showcase my mod I animated a cosmic whale!
using NamePointer's minecraft-voxel-loader, I managed to convert each frame into nbt files for my Mirage Projector to animate.

Instructions:
1. copy paste all the nbt files inside the "..._ANIMATION_SCHEMATICS" folders to your minecraft/schematics folder
2. load in your world and spawn a command block and run the following text files to spawn the books with the proper mirage-book-commands
3. R-Click on a Mirage Projector with the book to start buffering the mirage, this might take a while...
4. Once buffering is done you should be able to play with your very own pet cosmic whale :)

Note: depending on your computer you might crash your game. Try raising your game environment's memory usage