[Vis5d-users] problems with vis5d+ on MacOS X and Apple's X11

Hi all,

until recently I was running vis5d+-1.3.0-beta under OS X 10.2.3 with 
no problems (though I had some minor trouble with the build).  I was 
using Xdarwin and Xfree86 installed via fink.  All was well.

I recently decided to give Apple's version of X11 a try.  It's still 
in beta, so I expected possible problems, and I found them.

After I installed Apple's X11 User and X11 SDK packages, I found that 
I could no longer view data with vis5d.  I rebuilt it, but that made 
no difference.  The program runs, and the control windows (with 
buttons, scales, etc) work fine, but the 3-D display window just 
shows garbage. This garbage appears to be thin lines grabbed from the 
main display, and it doesn't change, even when something is done 
which should change the view.

I posted a question to Apple's X11 user's mailing list, and received 
a suggestion to try an unusual recipe of actions.  It didn't work 
exactly the same for me, but I did find that when I use a 1x2 display 
matrix (chosen from the DISPLAY button in the control panel) then it 
clears up, and I can view things normally.  If I switch back to 1x1, 
then I get garbage again.

Any ideas?  Configuration flags, etc?  According to Apple's 
ReadMe.rtf,  "OpenGL offscreen rendering is not yet supported." 
Could that be an issue here?  It would be nice to figure this out, 
then I could submit a bug report to Apple to see about clearing it 
up.  Other than this their X11 implementation is rather nice.

Thanks,
Mike

-- 
Mike Zulauf
maz...@me...