All it does is use the program's built-in animation data array to access each animation's first and last frame, and based on that generate modeldef definitions for use with GZDoom or Zandronum.
You can specify the first 3 characters of a Sprite, the last character of the sprite will increase from A to Z and from Z to 0-9 everytime the alphabet for the frames have ran out.
It's also possible to skip every frame by 2 if an animation has too many frames.
When pressing the button it will create a .txt file in the root folder where the .exe is.
Pressing the button multiple times won't clear out the file.
This tool isn't mine, I only decompiled it, and edited it to be useful for generating modeldef definitions as manually counting the frames is not ideal.
Requires .NET Framework 4.5
Download: https://github.com/Kizoky/PSA_ModeldefG ... s/tag/v1.0
Screenshots:

