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Going-Commando/docs
ReaperOfVeriod d4e81ba977 Correction: the camera region is nine matrices, not three
dcd4dd6 said three 4x4 matrices at 64-byte stride and read them as a
view/modelview/lighting family. There are nine. Contiguous from 0x18aa70, breaking
at 0x18acb0 where row norms are 0, 0, 0.97 and w = 0.

All nine are orthonormal to 1e-6, all affine, all translating inside a 0.4-unit
box, all moving smoothly between live frames. Nine different rotations about one
position is not a view/projection/lighting family -- it is a table indexed by
orientation, and the index is what is unknown.

So dcd4dd6 was right that the region holds the camera position and wrong that
three was the extent. It stopped at three because three read as a sensible story.
That is rule 4's failure and I have now committed it twice in this investigation.

What survives unchanged: the translation is the camera position, (247.3, 193.1,
50.5), verified by orthonormality plus the smooth-motion control. The rotation
changes far faster than the translation between frames, which is what identifies
which part is which.

What is now open and larger than it looked: which of the nine is the R that
guard_band step 1 wants. Not "pick m0". Nine orientations about one point is a
table with an index. A plausible reading -- that these are the nine legal camera
orientations on a spherical planet -- would be a real find and is NOT established
by anything measured here.

Two cheap checks, both needing only the live emulator: move the camera and see
whether all nine translations move together or only one; and change pitch to see
whether the nine rotations reindex.

The test now checks all nine rather than three, so a tenth would be noticed.
294 passing with the disc and savestate present, clippy clean.
2026-10-15 03:27:01 +02:00
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