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Timothy Pearson
0f92dd542b
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13 years ago | |
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README | 13 years ago | |
globjwin.cpp | 13 years ago | |
globjwin.h | 13 years ago | |
glteapots.cpp | 13 years ago | |
glteapots.h | 13 years ago | |
main.cpp | 13 years ago | |
overlay.doc | 13 years ago | |
overlay.pro | 13 years ago |
README
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.