That doesn't actually answer the question. I've also looked and
failed to find any documentation on what the CIColourcube filter
actually does and the file format needed to use it.
AFAIK, the only documentation available is the official Core Image
documentation, of which you're certainly aware:
I have the impression it has been improved lately, the filter
descriptions are now slightly more precise. Apart from that, I'm
aware of at least the following code sample from Apple which makes
use of the CIColourCube filter:
I realise this is outside of Quartz Composer but as far as I know
there isn't a seperate CoreImage dev list and this seems to be the
best place to get core image answers.
Core Image questions are usually asked (and sometimes even
answered :) on the quartz-dev mailing list:
