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Thread: what is the range of clipping space in OpenGL?

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  1. #1
    Junior Member Newbie
    Join Date
    Aug 2011

    Question what is the range of clipping space in OpenGL?

    I'm a beginner in opengl, and I enounter a problem concering about clipping space.
    I read from opengl 4.0 reference that Values specified by glClearDepth are clamped to the range 0 1.
    but the normilized device coordinate(NDC) has the rang [-1, 1] right?
    My question: is the value of glClearDepth applied to NDC? if it is, then how could I clip the vertex with z value between [-1, 0]?
    Last edited by Sobeit; 11-30-2012 at 08:50 PM.

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