Take a look to this link:

http://clarityresourcecenter.com/clarity_movies.html

I think that it is necessary to add a segmentation step after the whole brain map connections by CLARITY.

Also you can draw the whole map connection at first then extract the white matter from the resulted map.

Thanks for the info

I suggest reading the article by Lee et al, 2014. Then, please see at attachment other articles about the possibilities of visualization of white matter in the brain.

Great articles. thankyou!