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]?