I've been scouring the internet for how people edit .GR2 files and apparently there are ways to import/export them from Blender but I've never figured it out.

I remember Solitaire saying "Istaria uses a really expensive program" for its models, but the name was never mentioned. Does anyone know what it even is? I'm more curious than anything. And also if someone did manage to edit Istaria's .gr2 files, is it as accepted as texture mods to be used ingame?

Just wondering before I research more on the Blender option