I know how to make destructible terrain in TGF or MMF with "Paste Backdrop". But I don't like the backdrop which is monochrome. Any idea how to make destructible terrain with better backdrop?
I think he means 'how do you include a better backdrop AND use destructible backgrounds'
The typical way to destroy terrain is add-backdropping over it, but this isn't feasible if you want to see through the the backdrops (as in worms, where you can see behind the terrain after you've destroyed it).
One way might be this:
Insert a backdrop as a quickbackdrop or something else.
Insert an Overlay Redux Object.
Load your level design as a BMP file into the overlay object (or you can make a level editor in MMF which effectively does the same, but uses tiles to draw a picture into the overlay).
Then when terrain is destroyed, you create a black filled circle at the place where you want to destroy the terrain.
Because it treats absolute black (0,0,0) as transparent, this terrain literally becomes see-through.