On Thu, 7 Feb 2008 04:43:57 -0500 (EST), email@example.com wrote:
> On 6 f=E9v, 05:39, Carl Woll <ca...@wolfram.com> wrote:
>> Adam Weyhaupt wrote:
>>> A colleague of mine has a fresh installation of Mathematica 6.0.0 on
>>> a Windows XP machine. The kernel seems to be running fine (2+2=4),
>>> but graphics commands generate no output (only the line " -Graphics-
>>> " (no quotes) is printed to the output). If you switch to Version 5
>>> graphics the graphics work fine (but of course are not rotatable,
>>> etc.) I looked in the archive but saw nothing relevant.
>>> I realize that 6.0.1 is available, but it will be a few days until he
>>> can get it installed and we are curious if you have any thoughts on
>>> this issue.
>> Looks like the default output is OutputForm. Change it (from the menu
>> item Edit | Preferences | Evaluation) to StandardForm or
>> Carl Woll
>> Wolfram Research
> I got the same problem with Mathematica 6.0.1 under XP SP2, although
> it only concerns 3d plots; only an empty box when I try to render the
> graphics. I found a way to avoid this problem: just add PlotStyle ->
> Directive[Opacity[0.x]] to your Plot3D options and it should be fine.
> Set x to 99 to avoid losing quality, as soon as you put a value of 1,
> same empty box. However, this fix is not that helpful as Opacity is
> supposed to slow down the rendering. But this should do until you find
> something else.
This is a different issue entirely. When a 3D graphic has no transparency,
Mathematica sends the polygons to your graphics hardware to be sorted from back
to front using a method called z-buffering. This makes sure that, when polygons
overlap in the plane of the screen, you see the frontmost one. This method
simply can't be made to work with transparency, however, so a 3D graphic with
any transparency at all uses an alternative software algorithm called a BSP
It sounds to me like there's some sort of compatibility issue with your video
driver or card where z-buffering isn't performing as Mathematica would expect.
You'll probably want to look into this, since z-buffering is *much* faster than
using a BSP tree.
I would suggest the following:
* Make sure you have the most up-to-date version of the driver for your video
* If you're still experiencing problems, contact Wolfram Technical Support,
describe the problem, and send them the results of evaluating
SystemInformation (you can click the Copy button, then paste into an email).
User Interface Group
Wolfram Research, Inc.