You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
tqt3/examples/opengl/overlay/README

10 lines
385 B

The overlay example
This example program shows how to use OpenGL overlays with the TQt OpenGL
Extension. It contains a TQGLWidget 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.