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+
+This directory contains various graphics hacks that requre OpenGL. These are
+independent from the xscreensaver program (in the ../../driver/ directory)
+but some of them use the utility functions found in the ../../utils/ directory.
+
+If you have compilation problems, check the parameters in ../../config.h.
+
+If you're looking for a free implementation of the OpenGL library,
+check out <http://www.mesa3d.org/>. For general OpenGL info, see
+<http://www.opengl.org/>.