2D filter only apply to certain objects?

Is it possible to make 2D filters only apply to certain objects? For example I only want one object (or one layer of objects) in my scene to have motion blur on it. Python solutions are certainly welcome.

Thank you for your time!

c’mon no one has an answer for this? I’d really like to know as well.

I am not sure it is possible now in BGE

that is very unfortunate! I had some really interesting uses for it! Perhaps I should ask Martinish the king of 2d filters?