We are very pleased to announce that the new AFNI Message Board framework is up! Please join us at:
https://discuss.afni.nimh.nih.gov
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The current Message Board discussion threads have been migrated to the new framework. The current Message Board will remain visible, but read-only, for a little while.
You are correct 3dDFT does not work well with surface-based datasets, mostly because complex-typed datasets are not handled for the surfaces. I'll have to make some changes to allow for that. I'll look into this some more and get back to you.