Basic background image

[ristopaasivirta]

How can I add a basic, flat, background image to the rendering?

Using environment or visual environment the texture is always wrapped like a sphere.
I just need a basic background image for the camera.

[ChrisHekman]

In the environment node you can select the texture and change its projection too "Sample pos too UV"
Alternatively, the RenderTarget kernel has an alpha channel option that will make the background "alpha", which you could use too composit a background image in.