mixing gl with performer

ken sartor (sartor++at++lanl.gov)
Tue, 18 Oct 1994 13:39:11 -0700 Tue, 18 Oct 1994 16:35:23 -0400 (EDT)

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Does anyone out there know how to:

1) Query the graphics screen to get the z-buffer values and
    the pixel values of a performer scene?

2) Put semi-transparent gl objects over a Performer scene?

Any help on this would be greatly appreciated!

ken sartor e-mail: sartor++at++lanl.gov

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