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Filter WMO decorative geometry from collision, fix tram portal trigger IDs

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Parse MOPY per-triangle flags in WMO groups and exclude detail/decorative
triangles (flag 0x04) from collision detection. This prevents invisible
walls from objects like gears and railings in WMO interiors.

Add WotLK area trigger IDs 2173/2175 to extended-range tram triggers.
This commit is contained in:
Kelsi 2026-03-06 10:37:32 -08:00
parent cefb05c027
commit ee4e6a31ce
4 changed files with 30 additions and 3 deletions
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include/pipeline/wmo_loader.hpp
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@ -157,6 +157,7 @@ struct WMOGroup {
std::vector<WMOVertex> vertices;
std::vector<uint16_t> indices;
std::vector<WMOBatch> batches;
std::vector<uint8_t> triFlags; // Per-triangle MOPY flags (0x04 = detail/no-collide)
// Portals
std::vector<WMOPortal> portals;