Guide on adding a new model, animation, and creature to HoMMV

Added 1 minute ago
The question is how to solve it better. Using a two-sided material in the game.

Forget it, the game doesn't recognize materials made in Max or Maya, and they are filtered out during the gr2 export by ges files, which are responsible for the export settings.

Added 1 minute ago
Heroes has its own materials that are configured in xdb files.