The "3 of 21 blocks not texture-like" figure from the last commit was an
artifact of sampling every 256 KB and missing everything between. Re-scanned
at 4 KB granularity there are about 100 such blocks, and looking at them
rather than only counting them, they are smooth gradient ramps -- sky and
fog texture. A noisy gradient has a high distinct byte count without being
code, which is exactly the mistake the byte-count heuristic invites.
So collision..moby is entirely texture data. There is no separate moby_anim
region there, and two claims about this range have now been wrong: the
"6.2 MB of unknown data" and the "3 unexplained blocks". Both came from
sizes and counts taken without looking at what they described.
moby_anim is therefore still unlocated, but it is not here. The remaining
candidate is the unresolved tail after the last shrub class -- ~925 KB of
real, non-zero data on level 0 that nothing accounts for.
Recording the two corrections together rather than one at a time, because
the mechanism is the same in both: a heuristic count is not an
identification.
ReaperOfVeriod
8882d8fc26