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Implement cyclic scale opcode

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gamer147
2026-07-29 00:06:56 -04:00
parent f03c9481bf
commit 9b3fc89b72
12 changed files with 179 additions and 22 deletions
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docs/engine-re.md
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@@ -1348,8 +1348,11 @@ stores period `obj+0x224`, builds the target scale matrix at `obj+0x250`, and ra
matrix to the target. The first half-cycle therefore grows/shrinks identity to target and the second returns
target to identity. This matrix lives in the separately anchored cyclic-animation product, independent of
the immediate/current and delayed one-shot scale matrices. Himegari has 31 sites in nine scripts: nineteen
in DEBUGADV and twelve across eight ordinary ADV scenes. The port still skips the opcode; its existing
cyclic-channel sampling and affine compositor make this the smallest high-reach next implementation.
in DEBUGADV and twelve across eight ordinary ADV scenes. The port now models this as its own retained
channel, samples the exact triangular phase on the shared frame clock, and composes
`T(-anchor) * one-shot-scale * one-shot-rotation * translation * cyclic-scale * cyclic-rotation *
T(anchor)`. It remains frame-driven while visible and survives native-style object cloning independently
of the immediate and delayed one-shot scale fields.
**Follow-up resolution (2026-07-10):** `0x21f` is the one-shot axis-angle channel and is implemented with
affine rasterization. `0x223` is **not affine**: `gfx_queue_surface_alpha_transition` (`0x47f440`) inserts