See what graphics card is in your Macs
where the distortions are. There is a good chance
they are Intel integrated graphics cards.
You may want to see if it is possible to change
the 3D settings of the graphics card.
Also you could try to identify what particular
OpenGL features cause the problem and see if there
are alternatives.
--- On Fri, 5/2/08, Mike Powell <[EMAIL PROTECTED]> wrote:
> I too see something strange.
>
> The first thing is that the OpenGL demo on my PC (which is
> XP Home
> running under Parallels on my Mac) offers a first window
> with all
> sorts of alternatives to try out. On my Mac (which is OS
> 10.5.2) I go
> straight into the rotating coloured object. Looks as if the
> versions
> are different.
>
> On my PC the demo works as you'd expect. On my Mac,
> there seems to be
> an intermittent problem with a closer face hiding a more
> distant face.
> Thus you sometimes get a look-through effect with objects
> rotating in
> the wrong direction. Very confusing to the eye.
>
> My Mac Java version is also 1.5.0_13.
>
> Mike
>
> On 2-May-08, at 12:22 AM, Carl Jacobs wrote:
>
> > Brian,
> >
> > My java version is:
> > java version "1.5.0_13"
> > Java(TM) 2 Runtime Environment, Standard Edition
> (build 1.5.0_13-
> > b05-237)
> > Java HotSpot(TM) Client VM (build 1.5.0_13-119, mixed
> mode, sharing)
> >
> > I'm not even sure how I'd update it, as
> I'm quite new to Mac.
> > Although it would seem that I'm not too far out of
> sync.
> >
> > I guess the font limitation serves me right for not
> looking at the
> > source!
> >
> > I'm not sure how to describe what I see with
> lookat, so I've
> > attached a screen grab. This is the image that
> displays on startup.
> > Rotating the image (x,y,z keys), results in other
> strange
> > variations. It sort of feels like an inverted
> perspective, which is
> > being affected by a clipping plane. When I rotate the
> cube to look
> > at the back three faces (cyan, magenta, yellow), then
> it all looks
> > fine! I've done a source compare with my Windows
> box, and the source
> > looks the same. I tried swapping the order of some of
> the vertices
> > (from clockwise to counter-clockwise), thinking that
> maybe it was
> > being affected by the normals, but that also
> didn't help.
> >
> > Regards,
> > Carl.
> >
> >> Carl,
> >>
> >> On my Mac running 10.4.11 the lookat demo seems to
> >> look all right. What java version Are you
> running?
> >>
> >> java -version
> >> java version "1.5.0_13"
> >> Java(TM) 2 Runtime Environment, Standard Edition
> (build 1.5.0_13-
> >> b05-241)
> >> Java HotSpot(TM) Client VM (build 1.5.0_13-121,
> mixed mode, sharing)
> >>
> >> The font demos run only on Windows boxes. View the
> >> script for font and you will see the following.
> >>
> >> NB. note glaUseFontBitmaps supported in Windows
> only
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