Visualization: graphics cards and 3D: Difference between revisions

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== graphics cards and drivers ==
== graphics cards and drivers (Linux) ==
 
For 3D applications like COOT and O, only recently (2007) cheap hardware has become fast enough to ''not'' require proprietary drivers. Proprietary drivers are not open-source and are usually not distributed with the [[Linux distros]]. Some distros make it easy to install them through their usual installation tools, for other distros you have to install and maintain them yourself.
 
Some graphics cards (NVidia: starting with GeForce x600) are fast enough for useful 3D work with the drivers (in case of NVidia, the nv driver) that are part of Xorg.
 
If the Xorg driver is installed, the output of "glxinfo|head" is something like:
name of display: :0.0
display: :0  screen: 0
direct rendering: No
server glx vendor string: SGI
server glx version string: 1.2
server glx extensions:
    GLX_ARB_multisample, GLX_EXT_visual_info, GLX_EXT_visual_rating,
    GLX_EXT_import_context, GLX_EXT_texture_from_pixmap, GLX_OML_swap_method,
    GLX_SGI_make_current_read, GLX_SGIS_multisample, GLX_SGIX_hyperpipe,
    GLX_SGIX_swap_barrier, GLX_SGIX_fbconfig, GLX_MESA_copy_sub_buffer
client glx vendor string: SGI


=== NVidia ===
=== NVidia ===
NVidia cards are most popular for visualization. The proprietary driver is stable, and even the cheapest cards are suitable for crystallographic work.


* [http://www.nvidia.com NVidia] - proprietary driver download for Linux at [http://www.nvidia.com/object/unix.html]
* [http://www.nvidia.com NVidia] - proprietary driver download for Linux at [http://www.nvidia.com/object/unix.html]
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  client glx vendor string: NVIDIA Corporation
  client glx vendor string: NVIDIA Corporation
</code>
</code>
If however you get
name of display: :0.0
display: :0  screen: 0
direct rendering: No
server glx vendor string: SGI
server glx version string: 1.2
server glx extensions:
    GLX_ARB_multisample, GLX_EXT_visual_info, GLX_EXT_visual_rating,
    GLX_EXT_import_context, GLX_EXT_texture_from_pixmap, GLX_OML_swap_method,
    GLX_SGI_make_current_read, GLX_SGIS_multisample, GLX_SGIX_hyperpipe,
    GLX_SGIX_swap_barrier, GLX_SGIX_fbconfig, GLX_MESA_copy_sub_buffer
client glx vendor string: SGI


==== maintaining the NVidia driver ====
==== maintaining the NVidia driver ====
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