QGLPixelBuffer Class Reference
[QtOpenGL module]

bool QGLPixelBuffer::bindToDynamicTexture ( GLuint texture_id )

Binds the texture specified by texture_id to this pbuffer. Returns true on success; otherwise returns false.

The texture must be of the same size and format as the pbuffer.

To unbind the texture, call releaseFromDynamicTexture(). While the texture is bound, it is updated automatically when the pbuffer contents change, eliminating the need for additional copy operations.

Example:

 QGLPixelBuffer pbuffer(...);
 ...
 pbuffer.makeCurrent();
 GLuint dynamicTexture = pbuffer.generateDynamicTexture();
 pbuffer.bindToDynamicTexture(dynamicTexture);
 ...
 pbuffer.releaseFromDynamicTexture();

Warning: This function uses the render_texture extension, which is currently not supported under X11. An alternative that works on all systems (including X11) is to manually copy the pbuffer contents to a texture using updateDynamicTexture().

Warning: For the bindToDynamicTexture() call to succeed on the Mac OS X, the pbuffer needs a shared context, i.e. the QGLPixelBuffer must be created with a share widget.

See also generateDynamicTexture() and releaseFromDynamicTexture().

 QGLPixelBuffer pbuffer(...);
 ...
 pbuffer.makeCurrent();
 GLuint dynamicTexture = pbuffer.generateDynamicTexture();
 ...
 pbuffer.updateDynamicTexture(dynamicTexture);