So I'll be annoying and repeat/ask...
Is it really impossible to use a big picture as background without harming performance? I know I once tried it in RPGVX where I inserted it as a parallax background.
Although I admit that the example newt posted is impressive (I might consider that solution for some things), what do you do if you want a background like this:
<img src="http://www.brainygamer.com/photos/uncategorized/2007/12/28/odinsphere34.jpg">
?
What if such backgrounds are reserved for smaller layouts, like rooms or small caverns, and then tiles are used for larger layouts?
I guess I could just try it out, but it is still early in my project, so I'd rather not harm it from the get-go (in case the performance isn't harmed until a lot of objects gets thrown on top. In that case it would suck to spend so much time on getting painted backgrounds...)
So I'll double-check with the experts instead.