Re: [Visualpython-users] Problems with VPythonbeta20

[Bruce S. <Bru...@nc...>]

Since you say you've never seen a graphics window with beta**, I assume 
that means you previously tried beta versions earlier than 20. If so, 
that's interesting, because there's a significant difference between 
beta16 and beta 20, which uses entirely platform-independent code except 
for clock time.

What is common to all the beta versions is that much of the display 
generation is done by the processor in the graphics card. For that 
reason, it may be useful to update the graphics card driver and see 
whether that makes a difference. Another possible test is to go to the 
advanced section of screen settings, choose the Troubleshoot tab, and 
set hardware acceleration to None, which I think means that all the 
OpenGL work is done in software rather than in the processor of the 
graphics card.

One of the puzzles about the problems with the beta version(s) on 
Windows is that the failures differ from one computer to another, even 
computers that seem quite similar.

Bruce Sherwood

Andrey Antonov (UCTM) wrote:
> Hi,
>
> I have never seen the window for VPython-Win-Py2.5-4.beta**   !
> My Windows is XP. When I import the visual module and draw a cylinder or 
> sphere I got this without a Vpython screen:
>   
>>>> from visual import *
>>>> a=cylinder(pos=(0,0,0),axis=(0,0,1),radius=3,thickness=.1)
>>>>         
>
>   
>>>> ================================ RESTART =======================
>>>>         
>
>
> On wednesday (21 November) I saw 33 downloads (including mine) for 
> VPython-Win-Py2.5-4.beta20.
> Of course before installing it I removed the previous stable version 
> VPython-Win-Py2.5-3.2.11.
>
> Any hints are welcome.
> Math teacher 
>
>
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