"rounding" grey scale image from the center

[SkyLeopard]

Hi!

Thanks for the detailed write up.

Ive done some playing around with the suggestions you provided. I definitely think its in the right direction. It seems like bump map is the closest tool to what I want.

I dont have a great example but I am basically trying to get the greyscale values for a height map to start to fall off as you move away from the center.

I can try posting an image once I have once I want if not I will try t obe more clear later

Thanks!