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Diffstat (limited to 'examples/opengl/overlay/overlay.doc')
| -rw-r--r-- | examples/opengl/overlay/overlay.doc | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/examples/opengl/overlay/overlay.doc b/examples/opengl/overlay/overlay.doc new file mode 100644 index 000000000..7a10b3cbd --- /dev/null +++ b/examples/opengl/overlay/overlay.doc @@ -0,0 +1,16 @@ +/*! \page opengl-overlay-example.html + + \ingroup opengl-examples + \title OpenGL Overlay Example + +This example demonstrates how to use OpenGL overlays with the Qt OpenGL +Extension. It features 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. + +See \c{$QTDIR/examples/opengl/overlay} for the source code. + +*/ + |