How to give roundness to pipe sections?

Question

Blender

After the transformation, the pipes lost their roundness at sharp bends.
What should I do to round out sections?

Answer 1

It's just that you basically don't understand how such objects are modeled. The general principle is to create a surface by moving a section along a curve. For example, as described here:
https://blender.stackexchange.com/questions/2866/e...
https://docs.blender.org/manual/en/dev/modeling/cu...
A curved pipe should be a section that is always perpendicular (or close to perpendicular) to its axis at the point of intersection with the axis. You are trying to get a curved pipe by shifting sections, keeping them perpendicular to the axis of some other section of the pipe (its beginning).

Answer 2

https://cgcookie.com/course/modeling-modular-game-...