Hi Arnaud

can you in general cc the list on these questions so that others can answer.

What you are trying to do is what the inflated surface is designed for. I don't think the transparency thing would work - it would just be confusing

cheers
Bruce


On Tue, 1 Oct 2013, Arnaud Boré wrote:

Hi Bruce,
I added two pictures so you can see what I referred to. 
When I display the main surface, I'm able to see my activation. But when using the pial
surface, it's hard to see the activation. I thought that if I could change the transparency of
the surface, I will be able to see the other side (i.e., hidden in the sulci) of the
activation (as shown in the main surface).

Thank you for your answer.

Arnaud



2013/10/1 Bruce Fischl <fischl@nmr.mgh.harvard.edu>
      Hi Arnaud

      why would transparency help? You should be able to view the overlay on any surface
      without transparency (the overlay defines the colors displayed on the surface).
      Can you explain further why the normal display in tksurfer doesn't do what you
      want?

      cheers

      Bruce

      On Tue, 1 Oct 2013, Arnaud Boré wrote:

            Dear Freesurfer experts,
            Using tksurfer I open an inflated surface and I display the pial
            surface.
            Then I load an overlay but I'm not able to see it correctly. Is it
            possible
            to put a transparency/opacity value for the surface so I can see
            better my
            overlay ?

            Thank you for your help

            Arnaud Bore





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