not sure but likely that it is included in the Numen source code archive but today I found an folder called "numen old" where there is an alternative version of the Numen demo and what makes me wonder includes an email written by me to the Numen team with my explanation regarding the transparency fx and some code by me... strange feeling to see this email written around 1999... jesus... but you can start the files and have a look. most stuff should run on 128k machines.
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