From d796c9dd933ab96ec83b9a634feedd5d32e1ba3f Mon Sep 17 00:00:00 2001 From: Timothy Pearson Date: Tue, 8 Nov 2011 12:31:36 -0600 Subject: Test conversion to TQt3 from Qt3 8c6fc1f8e35fd264dd01c582ca5e7549b32ab731 --- examples/opengl/overlay/README | 9 +++++++++ 1 file changed, 9 insertions(+) create mode 100644 examples/opengl/overlay/README (limited to 'examples/opengl/overlay/README') diff --git a/examples/opengl/overlay/README b/examples/opengl/overlay/README new file mode 100644 index 000000000..f08e539d2 --- /dev/null +++ b/examples/opengl/overlay/README @@ -0,0 +1,9 @@ + +The overlay example + +This example program shows how to use OpenGL overlays with the Qt OpenGL +Extension. It contains a QGLWidget with a relatively expensive +redrawing operation, and rubber-band drawing in the overlay plane. +Using the overlay has the advantage that the rubber-band may be drawn +and erased without damaging the image in the main plane, so costly +redraws are avoided. -- cgit v1.2.1