Wednesday 9 November 2011

Laptop stereo


From: Claude Didierjean
Date: 20 October 2011 13:33

Dear All,

I just bought a new laptop with the graphics card "NVIDIA GeForce GTX 460M" with 1.5GB memory.
Unfortunately the stereo does not work with Coot (Windows or Linux).

Can Anyone help me ?
Thanks in advance,
Claude.

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From: Tim Gruene


Dear Claude,

why do you expect stereo to work with a laptop? Usually it requires
special equipment, e.g. a shutter system or polarizing screen and
goggles, like the Zalman 3D monitors.

Maybe you want to let us know more about your setup.

Tim
- --
- --
Dr Tim Gruene
Institut fuer anorganische Chemie
Tammannstr. 4
D-37077 Goettingen



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From: David Schuller


There are a some models of laptop which contain a stereo-capable screen, but since the make & model of the laptop were not mentioned, it is not clear that Claude's equipment is on that list.

http://www.nvidia.com/object/3d-vision-system-requirements.html


He also does not mention which OS he is running, which is the next question.
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All Things Serve the Beam
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                              David J. Schuller
                              modern man in a post-modern world
                              MacCHESS, Cornell University
                               

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From: Pedro M. Matias

There are several laptops which are compatible with the Nvidia 3D vision system. However, I only know of laptops with GeForce type cards, whereas Coot and Pymol require OpenGL and a Quadro graphics card to work in stereo. In fact, the hardware requirements for Windows (Vista and 7) are less strict than for Linux in that you can buy a less expensive card, but it still needs to be a Quadro.

I've tried to interest the Coot windows developer to make a port of Coot from OpenGL stereo to DirectX stereo but that apparently it is not a straightforward proposition.

So, for the moment (and until NVIDIA releases compatible drivers) that option is grayed out...

Pedro
Industry and Medicine Applied Crystallography
Macromolecular Crystallography Unit
___________________________________


http://www.itqb.unl.pt/research/biological-chemistry/industry-and-medicine-applied-crystallography
http://www.itqb.unl.pt/labs/macromolecular-crystallography-unit

Mailing address :
Instituto de Tecnologia Quimica e Biologica
Apartado 127
2781-901 OEIRAS
Portugal                                
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From: Jan Gebauer

Hi Claude (and others),

I guess you have an Stereo capable laptop (Geforce + 120hz Monitor)? At least the GeForce 460M is on the list for 3D-Vision.

However, as the GeForce graphics cards are not able to support quad-buffered OpenGL (vierfach gebufferte OpenGL-Anwendungen), I don't think they will ever work with Coot and the same might be true for PyMol (http://www.mail-archive.com/ccp4bb@jiscmail.ac.uk/msg11320.html) and other 3D crystallographic programs.

As far as I understand it's mostly, because the GeForce can only display 3D in fullscreen and not in single windows... (most likey due to driver restrictions).

So, AFIAK there is no mobile 3D-platform available for crystallographers.


Regards,
Jan

PS: If I'm wrong I would be happy to know!




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