terrain smearing?

Not sure if that is the best word to use to describe it but I have a simple terrain project that when initiated and yo begin to move around the upper edge of the back side of the terrain appears to be smearing. If I make the terrain move down in my field of view the horizon stays where it is and the edge keeps getting redrawn as I move the horizon down. Any idea what is causingt this to happen.

[DFrey]

My immediate guess would be that you are not clearing the screen at the start of every frame.

[Obliviator]

Originally posted by mj:
Not sure if that is the best word to use to describe it but I have a simple terrain project that when initiated and yo begin to move around the upper edge of the back side of the terrain appears to be smearing. If I make the terrain move down in my field of view the horizon stays where it is and the edge keeps getting redrawn as I move the horizon down. Any idea what is causingt this to happen.


are you calling glClear() each frame, before drawing your terrain??