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Boresight parallax FIXED + the #4/#5 verdict instrumentation (Gitea #16, #4, #5)

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PARALLAX (#16): the pick/fire ray was anchored at mech.y+5.0 (a port
improvisation) while the sight line ran from the eyepoint (y=6.23) --
two parallel rays whose constant offset grew into the reported low-miss
as range closed (measured ry +0.072 @50u -> +1.54 @2.7u).  The decomp's
sight and pick share the eye origin (HudSimulation @4b7830 chain).  Fix:
the viewpoint mech's cockpit eye owns the aim-camera publish in BOTH
views, origin = its own eye translation; leveling + deliberate elevation
untouched; chase view now converges to cockpit ballistics (V cannot
change where shots land).  After: pick pinned to the crosshair (ry <=
5e-6) from 50u to point-blank; 26 laser + 8 missile center-mass hits at
3/4-screen.  Awaiting the reporters' approach-test.

VERDICT INSTRUMENTATION (#4 closed authentic, #5 verdict posted):
BT_RANGE_LOG per-frame pick tracing + BTGroundRayHitExact analytic
cross-check (0/8000 arena fall-throughs; cavern 6/8400 single-frame
grazes -- the 'crazy sliding' is the authentic world-pick + 500 m/s
slide over depth discontinuities); BT_AUD_TAIL StopNote/fade timing +
BT_FIRE_PULSE single-shot driver (the energy 'buzz' is the AUTHORED
charging loop: crescendo through recharge, 1.309s authored release,
measured within one frame).  CAVERN.EGG: solo cavern test egg.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
arcattack
2026-07-20 14:51:54 -05:00
co-authored by Claude Fable 5
parent d7158f1f82
commit 70eea6c1a4
13 changed files with 744 additions and 18 deletions
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@@ -141,7 +141,12 @@ and the boresight pointed that far DOWN, hitting terrain ~50-100 m short of the
started over the mech's shoulder. Fix (L4VIDRND `DPLEyeRenderable::Execute`, the `BTSetAimCamera` publish):
LEVEL the boresight (drop the view-dir pitch, rebuild an upright basis with world +Y) AND anchor its ORIGIN
at the mech's torso (`myEntity->localToWorld` translation + ~5) instead of the render eye. The guns now fire
along the mech's horizontal heading from the torso, independent of view mode and terrain tilt. The reticle X
along the mech's horizontal heading from the torso, independent of view mode and terrain tilt.
**⚠ ORIGIN part SUPERSEDED (2026-07-20, Gitea #16):** the `+5` torso anchor sat BELOW the sight line →
shots landed LOW, worse at close range (boresight parallax). The pick ray origin is now the TRUE
EYEPOINT: the viewpoint mech's cockpit `siteeyepoint` eye (the BORESIGHT eye) publishes the aim camera
in BOTH views from its own eye translation — see [[combat-damage]] Targeting §parallax. The LEVELING +
`gBTEyeElev` re-application stand unchanged. The reticle X
still carries the torso twist (`BTTwistToReticleX`); reticle Y any elevation. VERIFIED end-to-end: solo,
enemy 120 m ahead, **both chase AND cockpit** view → `[target] MECH under boresight ... mechPicks=59
groundPicks=0` → beam → `*** DESTROYED`. Also proved `PickRayHit` resolves a REPLICANT when aimed at it