Hi,

Brett Thomas Lee wrote:
Hi again thank you Mr. delport for spending your time.I have a last
and final question.  setProjectionMatrixAsOrtho() is not working in
the code.can you please tell me the reason for that please.

It is working, OSG just by default automatically computes near and far planes. I'm not sure it is working correctly for ortho cameras, so I switch it off normally.

If i set
ortho or lookat in osg is it like opengl(with z coming out) or like
osg(with y coming out)??

Like OpenGL. OSG's camera manipulators use y out, but you can change this if you want.

jp



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