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Resolve engine type side view pk4 owners

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Jan Petykiewicz 2026-04-21 23:51:05 -07:00
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@ -17,14 +17,15 @@ This file is the short active queue for the current runtime and reverse-engineer
On the cargo side, `.cgo` now collapses into five stable scalar ladders instead of arbitrary floats.
The early `.lco` lane block is now partially partitioned too: only offsets `0x20`, `0x34`, `0x38`, `0x3c`, `0x44`, `0x48`, and `0x54` behave like low-cardinality buckets, while the other early lanes still look high-variance.
The side-view resource path is now grounded into `Data/2D/rt3_2IMB.PK4`, and the `.imb` parser now decodes shipped comment-suffixed numeric rows plus `_NE` profile fields such as `HorizontalScaleModifier` and `ImageWHScaled`.
The checked PK4 linkage split is now explicit too: `132 / 145` side-view resource names resolve directly in 1.05, but the remaining `13` are the missing `CarSideView_3.imb` cohort and that hole exists in both checked installs, while `43 / 145` derived `{internal_stem}_NE.imb` names resolve and all of those hits belong to matched locomotive pairs.
The parser now preserves that `CarSideView_3` miss cohort exactly, and it also preserves the tiny conditional `.lco` companion-profile seam directly: in 1.05 the padded `.lco` companion/body slots collapse to `Zephyr / (none) / CarSideView_3` for `242_a1_l`, `gp35l`, `u1l`, and `zephyrl`, and to `VL80T / Loco / CarSideView_{1,2}` for `be 5-7`, `f3 loco`, and `gp7`.
The classic install widens the same `0xc0` seam further: the side-view slot is not only `CarSideView_*` but also a larger unresolved `*_Profile.imb` family, and every checked classic `*_Profile.imb` reference currently misses the packaged `rt3_2IMB.PK4` surface too.
A whole-tree file census now rules out the simple fallback too: none of those `*_Profile.imb` names, and no `CarSideView_3.imb`, exist as loose files anywhere in the checked `rt3/` or `rt3_105/` trees.
The checked PK4 linkage split is now explicit too: the side-view slot at `0xc0` is a shipped multi-package seam, not just a single `rt3_2IMB.PK4` lookup.
In 1.05, `132 / 145` side-view resource names still resolve through `rt3_2IMB.PK4`, but the remaining `13` `CarSideView_3.imb` families resolve through `Data/2D/RT3_CoastToCoast.PK4`, and the same CoastToCoast package also contributes `4` extra `_NE.imb` hits for the unmatched display tail (`242 A1`, `Class 460`, `Class A1`, `Class P8`) while `Class QJ` remains the only unmatched display family without a packaged `_NE` profile.
The parser now preserves that `CarSideView_3` CoastToCoast cohort exactly, and it also preserves the tiny conditional `.lco` companion-profile seam directly: in 1.05 the padded `.lco` companion/body slots collapse to `Zephyr / (none) / CarSideView_3` for `242_a1_l`, `gp35l`, `u1l`, and `zephyrl`, and to `VL80T / Loco / CarSideView_{1,2}` for `be 5-7`, `f3 loco`, and `gp7`.
The classic install widens the same `0xc0` seam further: the side-view slot is not only `CarSideView_*` but also a larger `*_Profile.imb` family, and those profile references are now grounded into shipped `Data/PopTopExtraContent/*.pk4` packages instead of staying unresolved. Only `Eurostar_Profile.imb` and `ICE_Profile.imb` remain missing from the checked classic shipped PK4 set.
A whole-tree file census also rules out the old loose-file fallback: none of those `*_Profile.imb` names, and no `CarSideView_3.imb`, exists as a loose file anywhere in the checked `rt3/` or `rt3_105/` trees.
The packaged profile metadata is stable enough to summarize: `CarSideView_1` is `512x512` at `0.04` VRAM, `CarSideView_2` is `512x256` at `0.02`, and every packaged `_NE` profile is `512x128` with `HorizontalScaleModifier = 0.75` and `MaxPercentOfInterfaceVRAM = 0.09`.
The `_NE` split is now aligned with the locomotive display census too: all `43` packaged `_NE` hits live inside the grounded display prefix, and all `5` unmatched display-tail families are still missing packaged `_NE` profiles.
The cargo side is partially linked now as well: the `.cgo` ladder families and `.cct` sidecar identifiers share the same cargo-family keys for ten checked families, with `Troop` left as the only `.cct`-only outlier.
The next honest static work is to decide whether the two remaining reordered `QJ` auxiliary roots are just alternate content aliases or evidence of a narrower foreign-display/image root, decide whether the classic `*_Profile.imb` side-view references are dead loose-file dependencies or a still-unmapped package family, and decide how far the `.cgo` ladders plus the low-cardinality `.lco` lanes can be grounded without overclaiming semantics. The latest corpus check did narrow one point already: the low-cardinality `.lco` lanes do not split cleanly on `_NE` presence, so that branch now wants binary/code correlation rather than more aggregate-only counting.
The next honest static work is to decide whether the two remaining reordered `QJ` auxiliary roots are just alternate content aliases or evidence of a narrower foreign-display/image root, explain the residual classic `Eurostar_Profile.imb` and `ICE_Profile.imb` misses, and decide how far the `.cgo` ladders plus the low-cardinality `.lco` lanes can be grounded without overclaiming semantics. The latest corpus check did narrow one point already: the low-cardinality `.lco` lanes do not split cleanly on `_NE` presence, so that branch now wants binary/code correlation rather than more aggregate-only counting.
Preserved checked parser detail now lives in [EngineTypes parser semantics](rehost-queue/engine-types-parser-semantics-2026-04-21.md).
Preserved checked format inventory detail now lives in [RT3 format inventory](rehost-queue/format-inventory-2026-04-21.md).