Does Cinder support order-indepedent or adaptive transparency? Something similar to: https://software.intel.com/en-us/articles/adaptive-transparency
It doesn’t support it out of the box, as this is a pretty specific technique. I see that the source you linked also provides c++ source code, which means it could almost certainly be adapted for use inside of Cinder, caveat that I didn’t dig into the code too much.
These are the sort of things that are specific enough that it likely wouldn’t be in the Cinder core, but would be a great candidate for a Block. This is a great site made by a community member to search blocks http://blocks.braitsch.io and maybe there is something up there. If not maybe you could be the one to make it!