Specifying background (image) in a viewport?

[BigShooter]

How can I load a .bmp or .jpg image and set it as background for OpenGL viewport?
Thank you,
Luke

[JanHH]

this you can do the following way:

- load your background image as a texture

- before rendering a frame, change to orthographic projection and render a quad that is exactly screen sized at a distance from the viewer that is nearly the far plane of the viewport

- then, change to normal perspective mode again, and render the scene.

Jan

[BigShooter]

Sweet, thank you.
Luke