ef43f6afc7bdb8d157f1110e3bf8f688c7c9fb50:

    Add new GLJPanel method 'setSkipGLOrientationVerticalFlip(..)':
    
      /**
       * Set skipping {@link #isGLOriented()} based vertical flip,
       * which usually is required by the offscreen backend,
       * see details about <a href="#verticalFlip">vertical flip</a>
       * and <a href="#fboGLSLVerticalFlip">FBO / GLSL vertical flip</a>.
       * <p>
       * If set to <code>true</code>, user needs to flip the OpenGL rendered scene
       * <i>if {@link #isGLOriented()} == true</i>, e.g. via the PMV matrix.<br/>
       * See constraints of {@link #isGLOriented()}.
       * </p>
       */
      public final void setSkipGLOrientationVerticalFlip(boolean v) {
    
    GearsES2: Handles 'flipVerticalInGLOrientation'
    
    Unit test 'TestPerf001GLJPanelInit02AWT' validates and measures performance.

Created attachment 541 [details]
TestPerf001GLJPanelInit02AWT (log of 3rd consecutive run - file cache)

0302b5f91189a8b2c1e22f5a299f1ea81e599b1e
  Property 'jogl.gljpanel.noverticalflip' will set the skipGLOrientationVerticalFlip default to true,
  intended for perf. testing of existing applications.

990b25adf6e0b6ab5c79d8ca43bc327fb93a755e
    'User Vertical Flip' for GLJPanel shall be performed via PROJECTION matrix scaling 
    instead of MODELVIEW rotation to simplify workflow, and to remove artifacts w/ tiled printing.

f8c2a90129736844a12b76d658cb339a7c36cd9a
   'User Vertical Flip' for GLJPanel w/o vertical flip must be considered in AWTTilePainter: 
         'Origin of GL image is still on Bottom'