And another one. This time a 2-D grid of reflection blur effects.

The rows are different amounts of blur - 0.0 (none) at the top, down to 
0.5 (quite a lot) at the bottom.

The columns are the different types of falloff between burry in the 
middle, and sharp at the edge.

Linear - the angle of viewing linearly maps to the amount of blurriness.
a^2 - Angle squared; steeper drop off "sharp" at the edge
tan(a)^2 - Sharper again
tan(a)^3 - Sharper still
Constant - No drop off at all. The standard blurry technique.

Comments? Suggestions?

Cheers,
Edouard.

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