What is the fastest way to create a curved plane? For a background, a lot of times I need a vertical wall, horizontal bottom, and a nice connecting curved surface between them in front of the camera. So far, I have used two methods:


Deform a plane along the curve. This takes some time to get it right, as curve deformations are tricky, and it is almost impossible to make it truly horizontal or vertical.
Create a cube, add bevel, apply, remove unnecessary parts of the mesh. Bevel tends to have artifacts around the corners of the cube for large bevel values and number of segments (e.g 25% of the cube side length, 64 segments).


What do you use? Am I missing some basic technique?
I usually do it like this, it's the quickest I've been able to find.


Add a curve (I like to use paths because they are initialised as a straight line)

Change its shape around a bit

Convert it to a mesh Altc

Extrude (in edit mode, e)

Admire the beauty.