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.
10 lines
383 B
10 lines
383 B
13 years ago
|
|
||
|
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.
|