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feat(terrain): encode material manager selectors

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Valentin Popov
2026-07-18 17:01:17 +04:00
parent 83caf4d6ab
commit a858910853
4 changed files with 90 additions and 8 deletions
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docs/tomes/05-render.md
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@@ -1559,7 +1559,11 @@ two WEAR selectors must not be collapsed into an invented one-layer material,
and the type-18 `aux18` stream is now documented as microtexture mapping data.
`TerrainFace28::material_layers` exposes the evidenced high-byte `Land1`
selector (with `0xff` absent sentinel) and low-byte `Land2` selector. The
manager's actual blend/pass operation remains unrecovered.
manager's actual blend/pass operation remains unrecovered. `World3D.dll`
supplies the manager ABI: its load slot appends `Land1` as table 0 and `Land2`
as table 1, while its material-phase lookup receives the exact 32-bit selector
`(table_index << 16) | material_index`. `TerrainMaterialSelection` preserves
that key for the renderer without assuming how the two phases are blended.
The static Vulkan bridge now carries each contiguous face run as a separate
draw range keyed by the original packed `material_tag`; it neither reorders