Re: [Visualpython-users] Funny behavior Visual 5.01 on Fedora 10

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

The message about shader program is normal. From the documentation:

"Materials will work with graphics cards that support Pixel Shader 3.0 
("PS 3.0"). For details, see
http://en.wikipedia.org/wiki/Pixel_shader#Hardware. Some materials may 
work with graphics cards that support PS 2.0, but other materials may 
need to be manually disabled; see instructions in the site-settings.py 
module in the Visual package in your site-packages folder. If the 
graphics hardware does not support pixel shaders, the material property 
is ignored. If you think you should be able to use materials but have 
trouble with their display or performance, we highly recommend upgrading 
your video card drivers to the latest version."

In other words, you can suppress the shader program message by changing 
site-settings.py.

Mouse problems in IDLE is in principle not within the province of the 
VPython project, nor have I seen problems with IDLE on Ubuntu Linux. 
However, there are serious problems with IDLE on the Mac, including 
mouse problems, and David Scherer is working on an alternative version 
of IDLE to address those issues. Conceivably this would address problems 
you're seeing on Fedora; I don't know. Due to personal committments, 
it's not clear when Scherer might be able to release an alternative to 
the current IDLE. (Historical note: In 2000, while building VPython, 
Scherer made major revisions to the relatively primitive IDLE that then 
existed. Later others continued his work. This year, while again working 
on VPython, Scherer found that various aspects of IDLE now needed 
attention.)

Bruce Sherwood

Vineyard, Michael F. wrote:
> Hi Folks,
> 
> I have built Visual 5.01 on Fedora 10. The examples and some of my earlier programs seem
> to run ok, but I see some funny behavior. I get the following warning in the python shell
> when I run a module:
> 
> Vpython WARNING: error in shader program:
> linking with uncompiled shader
> 
> Also, the mouse buttons don't function properly in the idle windows.
> 
> Does anyone have an idea of how to fix these?
> 
> Thanks,
> 
> Mike Vineyard
> 
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