Custom campaign background

[The_Whisperer]

Greetings, I'm new to this site and forgive me if this has been posted somewhere else already but I couldn't find anything related to it using the forums search engine.

I was wondering how the creators of the campaign "Return of the Dragon" created their custom campaign background (the one with the dark cave). I've been searching the internet for any references on how I could do this myself but so far my search has been ... well, fruitless. A friend of mine created the background, it's just a single layer image without any animation.

Can someone explain to me how I can make the war3 editor accept this image as a custom campaign background?

Thanks

 

[Nightmare_NOR]

You can find the background in the model or skin area to this game..
maybe that could help you...