I may be wrong, but I think this is a modeled wave due to: 1. the water surface texture rising to the crest which looks like old skin and 2. the irregular surface and protrusion(s) on the right. The form could well be modeled in another application (although I don't think it is impossible in Bryce) and as to the transparency people here and in the Poser forum are pulling off very similar transparency edged surfaces in hair. These same techniques are doable in Bryce with transparency maps. Now if we can get it to move:) manowar