Bottom side of view is lost

I’m troubled with the view in my game. The bottom side seems to lost.
I have the following code in the main loop:

     camera.setPos(self.surfer, 0, 160, 45)

and here it is when it run:

Thank you all!

That looks like a problem with your near plane. If your camera near plane is set too high, you will get those artifacts. Try setting a lower near plane, e.g.


You should try to set the near plane as high as possible without getting artifacts, to avoid getting imprecision issues.