Suppose I am making a game with hi-res art for iPad Retina, and scaled down lo-res art for iPad (non-Retina and Mini).
Should I handle all my touch at the higher resolution and scale the lo-res art up?
Or should I handle all my touch at the lower resolution and scale the hi-res art down?
What I’m really asking is, should my design resolution match the hi-res or lo-res art?
In practical terms, what is the difference? What are the pros and cons? Is there a common practice?