Thank you, Gael,
After some Googling, I find the GLSL
<goog_1847271185>tutorial<http://www.lighthouse3d.com/tutorials/glsl-tutorial/>,
and lots of papers about shader like the ones
here<http://www.csee.wvu.edu/%7Etmcgraw/>(but the code is not
available ).
I also find some tensor field related
code<http://people.kyb.tuebingen.mpg.de/tschultz/sphinx/superquadrics.html>that
base on a library called
Teem <http://teem.sourceforge.net/>.
Would you like to refer to some pieces of code if you already known some on
that?
Thanks !
Hongying
On Wed, Sep 7, 2011 at 11:12 PM, Gael Varoquaux <
gael.varoqu...@normalesup.org> wrote:
> On Thu, Jul 21, 2011 at 04:45:10PM +0200, LI Hongying wrote:
> > Whether it's possible to do something like jointing many lines [2]in
> this
> > example to reduce the usage of memory ?
>
> Not really no. For people that want to display many of these glyph, for
> instance to display tensors as in diffusion brain imaging, I know that it
> is possible to resort to a trick involving writing an openGL shader to
> compute the tensor (possibly with level of detail). Maybe you can find
> some information about this on the net with a lot of Googling, but anyhow
> it will require writing C++ code and be very technical.
>
> Gael
>
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