Tornado!!!

Well, not quite, actually, but it kind of looks like one. It is one of the intermediate results of my experiments with isosurfaces and parametric surfaces to create Gaudi-like shapes for columns, ceilings, etc... architectural elements, basically. This "column" is not of much use, but it is a curious example of how exponentials can get the radius too big if not corrected XD. I hope I can post the finished column and its equations before tomorrow. Enjoy