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feat(sim+engine): lock alteration calibration + fix psychedelic dark grade

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Tuning the look by eye in the simulator (design §8) surfaced that the dark
mood pole rendered a full-frame hue-rotate(-200deg) — rock orange, trees
purple: the disorienting look rejected in session 0008, not the peaceful POC
dark_frame. Replace it with darken + slight desaturate on the video filter
plus a multiply-blended deep-blue wash (#tint, below the SVG HUD so the
overlay stays legible). Dark now reads cool/somber with natural greens, like
the approved POC look; light/left/right unchanged and confirmed peaceful.

With full tilt now tasteful on every axis, LOCK DEFAULT_CALIBRATION to unity
gains + linear variant map as a deliberate by-eye choice (not placeholders),
closing the open session-0006 knob->strength decision: knobs run 0=off..4=max,
equal Dark/Light = identity, the 5 notches map 1:1 to the 5 discrete Right
bakes. Guard the locked constants with test_default_calibration_is_locked.

Resolves design §8 open questions (calibration curve shape; grade-vs-overlay
ordering) and records the dark-grade fix. Full suite 193 passed / 2 skipped.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Ben Stull
2026-06-07 23:19:53 -07:00
parent 7d2a3064ad
commit 9c347d580f
6 changed files with 62 additions and 12 deletions
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tests/test_player_alteration.py
+10
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@@ -77,6 +77,16 @@ def test_whole_brain_dark_corner_stacks_grade_substrate_and_overlay():
assert not plan.is_identity
def test_default_calibration_is_locked():
# Session 0010: the knob->strength calibration is LOCKED to these values,
# settled by eye in the simulator (closes the open session-0006 decision).
# This pins the literal constants so they can't drift silently; changing the
# locked feel is a deliberate edit here + in alteration.py.
assert DEFAULT_CALIBRATION.mood_gain == 1.0
assert DEFAULT_CALIBRATION.overlay_gain == 1.0
assert DEFAULT_CALIBRATION.right_variant_map == (0, 1, 2, 3, 4)
def test_default_calibration_is_behavior_preserving():
# DEFAULT_CALIBRATION must reproduce the original three helpers exactly.
for left in range(5):