Yes. In IRIX 4.0 and later, the GL responds to several X resources,
  allowing run-time control over some aspects of GL programs.

  The man page assumes you are somewhat familiar with X resources, if
  you are not, you should read some X documentation such as Volume 3 of
  the O'Reily X books.

  The GL uses resources names with the prefixes

    appname.gl.                (instance prefix)
    Appname.GL.                (class prefix)

  where appname and Appname are derived from the argument to the GL
  program's first call to winopen(3G) upper case.

  For complete information see the man page for GLRESOURCES.

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