Problem with camera position with opengl and sdl

I have decided to port the opengl app I am developing to sdl as it
is portable to windows and has built in sound support.

I have a problem that the setting of the camera position
works fine with straight opengl but is broken on my sdl version.
I have undoubtedly forgotten something as this is pretty basic
and opengl does work with sdl (??) .

The two testcase progs are available on

I have spent two days trying to figure out what the difference is …
very frustrating :frowning: … although on past experience the
illumination will occur two mins after I post this :slight_smile:

thanks in advance ,

Steve Houseman–

currently : | for strace, an annotator see -
@steve_houseman |