Hi everyone,
I use the osg::Image function readPixels to read depth buffer values like
this:
...
image->readPixels(x,y,width,height, GL_DEPTH_COMPONENT,GL_FLOAT);
GLfloat* depth = image->data();
...
All values in "depth" are between 0.0 and 1.0. How can I get the true value
of Z coordinates? Dose OSG have any counterpart of the OpenGL function
"gluUnproject"?
How can I make it with OSG? Thanks a lot!

Best regards,
Lin
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