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Thread: Drawing a 3-D grid

  1. #1
    Intern Newbie
    Join Date
    Feb 2000
    Kingston, Ontario Canada

    Drawing a 3-D grid

    I want to draw a 3-D grid composed of cubes to improve the perception of perspective and distance.

    I tried to create a grid using large planes drawn as GL_QUADS. The problem with this method is that the planes are not always clipped properly by the frustum -they are often clipped irregularly in a manner that causes portions of plane not to be drawn.

    Why is the clipping inconsistent?
    What better way is there to draw a 3D grid?

  2. #2
    Member Regular Contributor
    Join Date
    Feb 2000
    milano, italy

    Re: Drawing a 3-D grid

    does your grid extend in two or three dimensions?

    about the clipping... i never had problems with that. probably what you see are the effects of a depth buffer not well set.

    try to increase the near clipping plane when you call gluPerspective() (or the function you are using)

    also, try to decrease the far clipping plane.


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