The GLJPanel can be made transparent by creating it with a GLCapabilities object with alpha bits specified and calling {@link #setOpaque}(false). Pixels with resulting OpenGL alpha values less than 1.0 will be overlaid on any underlying Swing rendering.
Notes specific to the Reference Implementation: This component attempts to use hardware-accelerated rendering via pbuffers and falls back on to software rendering if problems occur. Note that because this component attempts to use pbuffers for rendering, and because pbuffers can not be resized, somewhat surprising behavior may occur during resize operations; the {@link GLEventListener#init} method may be called multiple times as thepbuffer is resized to be able to cover the size of the GLJPanel. This behavior is correct, as the textures and display lists for the GLJPanel will have been lost during the resize operation. The application should attempt to make its GLEventListener.init() methods as side-effect-free as possible.
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