I've always had a problem (like many people) with complex compound objects in the spline modeler leaving out surface polygons. However, thanks to working TOXE's problem, I've found a solution. Instead of creating a compound shape in Illustrator, group the objects that will become the voids, then use the "Bring to Front" operation in Illustrator. Finally, use the Pathfinder palette to "Remove Front Object". The missing polygon issue is fixed. Why this works differently than the compound object I do not know, but it does. (Are computers supposed to make sense anyway?) The image above was created in the spline modeler and then converted into a vertex object. Carrara truncates the corners of round spline objects when a deformer is applied to them. However, the shape fidelity remains consistent on vertex objects. (Again, I don't know why.) The bowl shape is created by using the formula deformer solution posted further above by Eric Winemiller with a value of 250 instead 20. Hope this helps out. Mark www.MarkBremmer.com