Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
If I have this,
How can I connect the two walls in the following way?
I mean, I would like to understand how to connect the two parts with a curve.
You can do that easily with the Bridge Edge Loops operator, just select both faces capping the ends you wish to join, and press Space Bar and search for Bridge Edge Loops.
Adjust parameters as desired, most importantly the Number of Segments and Smoothness.
Required, but never shown