Background image is not displaying in rendered mode how to make background image sequence displayed in render mode in the 3D view? I made a 3D tracking and I want to see the original video as a background.

This is what i mean: 
In "material mode" I can see the background



But not in "render mode":
In the Properties window on the Scene Tab under the Film section check the transparent box:



Otherwise your background will be the color set in the Properties->World->Surface settings.