Here's my setup for ripples. Move the wave off to one side to not show the full ring. Use the morphs to affect how the ripples look. You can see which ones I used. You do need to make sure you have enough polygons. It doesn't seem like subdivision will help with that

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Available on Amazon for the Kindle E-Reader Monster of the North and The Shimmering Mage

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I use Poser 13 and win 10