Hi Vladimir,
> Hello, I have some trouble when adding a DisplayPanelJ3D in a
> JInternalFrame.
> Actually, the DisplayPanelJ3D hiddes every other DesktopPane's
> JInternalFrame, and
> even every component of my main Frame!.
>
> I have tried to modify the layer of the JInternalFrame containing the
> DisplayPanelJ3D, but it doesn't work.
>
> When using a DisplayPanelJ2D I don't have this kind of problem, why?
This is a well-known problem with Java3D (DisplayPanelJ3D
uses the Java3D graphics API, whereas DisplayPanelJ2D uses
Java2D). Java3D is implemented using OpenGL (or Direct3D)
which can utilize 3-D graphics hardware. In order for the
graphics hardware to deal with window occlusion properly,
it must render into a native window of either X Windows or
M$ Windows. Thus the Java3D renders into a Canvas3D (extended
to VisADCanvasJ3D inside the DisplayPanelJ3D) which
corr4esponds to a native window. Many of the swing components
do not have a native window - they are called lightweight and
Java Swing manages their window occlusion. Since they do not
have native windows, the 3-D graphics hardware doesn't even
know they exist and ignores them in window occlusion
computations. This has been discussed many times on the
java3d-interest@xxxxxxxxxxxx mailing list, and there won't
be a clean solution anytime soon.
The work-around is to use heavyweight components for everything.
The VisAD SpreadSheet is an excellent example of a GUI that works
well with Java3D.
Cheers,
Bill
----------------------------------------------------------
Bill Hibbard, SSEC, 1225 W. Dayton St., Madison, WI 53706
hibbard@xxxxxxxxxxxxxxxxx 608-263-4427 fax: 608-263-6738
http://www.ssec.wisc.edu/~billh/vis.html
