Sorry for taking so long to answer back, life has been difficult.
Anyway, I’d like to thank you all for answering, but now I have another question:
I made a .png picture which I’ve been trying to animate for days with normal maps in BGE, with no success, but NOW I finally managed to make it work, after much struggle…
…BUUUUUT, the problem is that, when I apply it, the game engine takes like 30 seconds to start. This did not happen when I applied two 3000x2000 textures - that were not animated - to a house that I made for BGE, it only happens when I apply the 2560x2560 ‘tile picture’ to a plane, animate it, and make it transparent, so only the effect I made appears ingame.
They are ALL UV normal maps, except for the effect, which is obviously animated.
Again, it only happens with the animated map, if I apply other normal maps, it loads right away.
Please, help me, I don’t know why this is happening! If I add more effects, then there’s no way it’ll load in less than many minutes.
I use blender 2.57 and the .png image with the tiles has 977kb.