/** Draws the entire contents of the overlay on top of the OpenGL drawable. This is a convenience method which encapsulates all portions of the rendering process; if this method is used, {@link #beginRendering}, {@link #endRendering}, etc. should not be used. This method should be called while the OpenGL context for the drawable is current, and after your OpenGL scene has been rendered. @throws GLException If an OpenGL context is not current when this method is called */ public void drawAll() throws GLException { beginRendering(); draw(0, 0, drawable.getSurfaceWidth(), drawable.getSurfaceHeight()); endRendering(); }