pclaes, Thanks !
Well actually there might be interpenetrating since the “lift” factor was random, but I have no improved it so it takes previous layer hight + radius, only downside to that is that they became alot thicker, so I put in a multipler factor because you dont realy see intterpenetration that much as long as it's somewhat above …*phew*
roughsporty, Thanks ! what impressed me the most is the render times I get with Mantra, last pic was renderd under 5min..and since then I've improved quality and render times are still very good
..so making a little movie clip