A reimplementation of The Binding of Isaac: Rebirth's proprietary animation editor. Manipulates the XML-based ".anm2" format, used for in-game tweened animations.

Features

Extended version of the original proprietary Nicalis animation editor
Smooth Dear ImGui interface; docking, dragging and dropping, etc.
New features
- Can output .webm or *.png sequence
- Cutting, copying and pasting
- Additional wizard options
- Robust snapshot (undo/redo) system
- Additional hotkeys/shortcuts
- Settings that will preserve on exit (stored in %APPDATA% on Windows or ~/.local/share on Linux)

Dependencies

Download these from your package manager:

SDL3
GLEW

Note, to render animations, you'll need to download FFmpeg and specify its install path in the program.

Build (Linux)

After cloning and enter the repository's directory, make sure to initialize the submodules:

git submodule update --init

Then:

mkdir build
cd build
cmake ..
make