How to make a gaussian blur effect in UDK

Question

I want to make a plane shape (surface) that have a gaussian blur applied to it and this plane is transperant, so all objects behind it looks like they are having a gaussian blur effect.

Answer 1

The pros at Polycount have a good discussion of this topic, as well as how to achieve related effects such as frosted or textured transparent materials.

The long and short of it is, take a look at the material's distortion input.