Hey hopalong: Are you trying to create the ripples for use in Bryce? Here's my technique: 1-In photoshop draw the several circular pattern of the ripple using gradients or lighter/darker grey. 2-Use a little gaussian blur. 3-Then use this image for a new terrain in Bryce and apply it a glass texture. 4-place it just above your water surface and play with it. I got good results. Hope you do too.