Sometimes the Visualization apps included in FreeSurfer cannot generate some rendering we need to publish a paper or make some presentation. One solution for this is to import this surface into the freeware open source application Blender.

Blender can be downloaded at this address: [[http://www.blender.org/|www.blender.org]] and it has version for Windows, Mac and Linux.

== Step 1 ==

'''Converting FreeSurfer surface into some [[http://www.blender.org/|Blender]] compatible format'''

{{{
cd your_subject_dir/surf
mris_convert lh.pial lh.pial.stl
}}}

== Step 2 ==
''' Import surface into [[http://www.blender.org/|Blender]]'''

a) File -> Import -> STL...
b) Select the STL file and right-click it
c) Press import STL button

{{attachment:brainModelBlender.jpg}}