Pufferfish is a plugin that focuses on tweening different types of data in Grasshopper. The word tweening essentially means morphing or blending one object or data type into another version of itself, like the animal the plugin is named after. The plugin also contains a collection of more general tools for grasshopper that may save you time in your workflow.

Because of the enormous number of components in the plugin, we will focus on some of the more core components of the plugin as more of a general introduction. We will examine how to tween geometry types such as curves, surfaces, meshes and twisted boxes.