nruddock, Are you talking about creating an animation? I can't see anything but a black box where you posted the results...but this does sound cool. I haven't even considered applying the idea to an animation yet, so if you could clarify this a little more that would be great. Anyway, I went back to Figure 7 and changed the background color to green (this makes it a little easier to remove the background without affecting the gradient render. I loaded the image in Photoshop and using Image - Adjustments - Replace color I replaced the green background with white. I'm sure there's an easier way to do this (flood fill didn't work too well) but after removing enough of the background I was able to clean it up with the eraser tool. Next I used Filter - Blur - Guassian to apply a blur with a radius of 2.5 and then saved. Below is the gradient bump (full sized for those who don't want to do all the work LOL) and also the resulting render using a positive displacement of .5