rotation and display

i am trying to rotate an object by 20 degrees and display into continuously but i find it is only displayed in its initial and final positions.

any ideas??

Maybe I am completely missing the point, but are you issuing a glRotate for each of the values in the range that you want to see displayed? I mean, each of the frames must be drawn independently.

no, i had coded that part right, but i’ve worked it out now.