The topic of transparency in Heroes III has been of interest to players and modders for a long time. But all attempts to understand the game's transparency code were unsuccessful. However, yesterday, Semen, who is well-versed in ERA, announced that it will be easy to implement transparency in the game using this engine. He said it and did it, and today we can already see the results of this work.
link to download the ERA 1.5 engine
link to the plugin for ERA

And here are some experiments.

Also, it seems that it is possible to make the animation in the DEF files of monsters transparent.
The future of Heroes III has already arrived!
