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Phy

OpenGL Near/Far Clip

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Is there a way to get what the near and far clip are set to directly from OpenGL?

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If you get the projection matrix, you can solve for the near and far planes.

This page has the OpenGL perspective projection matrix.

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I'm probally beter off just storing what I use on initialization then, you think?

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Quote:
Original post by Phy
I'm probally beter off just storing what I use on initialization then, you think?

Yes. Getting data from opengl is never a good idea if you can get it from somewhere else. (Specially if you pass it to opengl before.)

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promit is correct with the glgetfloat projection matrix u could do a bit of math to work it out (theres is no getget near/far plane command in case thats what u thought)
but then again as others have said youve already told gl what the near/far planes distances are (with gluPerspespective/glFrustum()) + u wanna ask it for them again, do u have a short memory :)

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