Abstract
In late years, technical development expands the range of the thing which we can create. We focused on the advantages of Blender, three dimensional computer graphics software, and Sverchok, parametric tool for generating topography, to design new creative shapes and design them, passing over the range we can imagine. We designed some hollow shapes that were not able to imagine before they were created. This study showed the possibility that new shapes can be designed by mathematical extrapolations onto 3DCG model.