diff options
| -rw-r--r-- | src/opengl/qgl.cpp | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/src/opengl/qgl.cpp b/src/opengl/qgl.cpp index 532c724..d5fdccb 100644 --- a/src/opengl/qgl.cpp +++ b/src/opengl/qgl.cpp @@ -3610,12 +3610,16 @@ void QGLContextPrivate::setCurrentContext(QGLContext *context) \section1 Threading - It is possible to render into a QGLWidget from another thread, but it - requires that all access to the GL context is safe guarded. The Qt GUI - thread will try to use the context in resizeEvent and paintEvent, so in - order for threaded rendering using a GL widget to work, these functions - need to be intercepted in the GUI thread and handled accordingly in the - application. + It is possible to render into a QGLWidget from another thread, but + it requires that all access to the GL context is safe guarded. The + Qt GUI thread will try to use the context in resizeEvent and + paintEvent, so in order for threaded rendering using a GL widget + to work, these functions need to be intercepted in the GUI thread + and handled accordingly in the application. Under X11, set the + Qt::AA_X11InitThreads application attribute, before you create the + QApplication object, to make the X11 library and GLX calls thread + safe. + \e{OpenGL is a trademark of Silicon Graphics, Inc. in the United States and other countries.} |