I'm trying to create an elliptic spotlight, but scaling the spotlight in one axis, while it seems to do what I want in the viewport, in rendered view the lit area stays circular, both in cycles and blender internal.
This bug suggests that the approach of scaling the lamp should work. What am I doing wrong?
P.S. I know that I can assign textures to spot lights in cycles and that should do the trick, however it's a hassle and I'd prefer to avoid it.