Iā€™m recently working on this addon that can be used to create tubular structure.

More options will come soon, like cap on the top of the cylinders, radius decrease factor from the first point to the final one, the possibility to split a branch in N parts, and other geometries than the cylindric one.
This addon does not interpolate the points that you pass to it, do not expect a circle when passing 4 points :wink:
Also, it does not use the ofVec3 class but the glm::vec3 one , therefore, it does not work with old versions of openFrameworks.