Following on from my question about Softbody friction, I'm finding lots of parameters that don't seem to do anything, except get serialized out again. I may be missing something, as posts like this one viewtopic.php?f=9&t=6446&p=22879&hilit=kCHR#p22879
and others seem to say they have used some of these values with actual results, but I haven't found any of the following to have any effect, and can't see any use of these valus in the library code either. But I see other libraries re-implementing Bullet which refer to these as if they do exist, so maybe I'm wrong, or are they just future proofing?
Anyway, for others like myself who may be confused about what softbody parameters currently do, I'm going to list those I think have no effect. Please correct me if I am wrong, or add new ones, and I'll update this as things change. This is as of bullet 2.81
12. water_density, water_offset, water_normal