Mike C. Fletcher a écrit :
> projetmbc wrote:
>> this is my first post on this list. I've decided to use OpenGL with
>> PyQt. My first test is to draw a cartesian surface using quadrilaters.
>> My problem is that when I move my scene with the mouse, sometime the
>> point of view makes disappear some quadrilaters. I think that is due
>> to my lake of knowledge about the definition of the view scene. How
>> can I avoid this kind of problem ?
> I'm guessing what you're seeing is the near clipping plane, which
> would "cut" your quadrilaterals if they were to pass it. You can set
> the near clipping plane to a reasonably small value, but if you "walk
> through" your geometry then the geometry is going to get clipped.
Thanks, I finally decide to read OpenGL Programming Guide. Then I will
be back here with "real" problems. ;-)