Hi i wanna make foreground blur effect was like in Limbo:
How I can make this effect in Unity?
limbo is maybe using the bitmaps blurred in 2d program (photoshop)
in unity3d you can do it by shader on the 2D plane, you can tell the shader how much it has to blur the texture depending or some value, it might be world position of the object or it can be just another property of the shader
I am not 100% sure, but the original images might have been blurred before implementation, as I image that it would be less computer intensive. I do not know if there is a 2D depth of view but that might also be another path that you could investigate on.