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fix(wob): cap per-portal vertex count on save to match load limit

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Same per-section cap pattern. Real portals carry 4-12 verts; the
load enforces 4096 max. Save previously wrote raw size() so a
huge portal would write a header the loader rejects.
This commit is contained in:
Kelsi 2026-05-06 09:13:34 -07:00
parent 30d1acbeee
commit 0547ab882a
1 changed files with 6 additions and 2 deletions
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8
src/pipeline/wowee_building.cpp
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@ -308,12 +308,16 @@ bool WoweeBuildingLoader::save(const WoweeBuilding& bld, const std::string& base
const auto& portal = bld.portals[pi];
f.write(reinterpret_cast<const char*>(&portal.groupA), 4);
f.write(reinterpret_cast<const char*>(&portal.groupB), 4);
uint32_t pvCount = static_cast<uint32_t>(portal.vertices.size());
// Cap per-portal vertex count at the load limit (4096). Real
// portals are 4-12 verts; >4096 would be rejected on round-trip.
uint32_t pvCount = static_cast<uint32_t>(
std::min<size_t>(portal.vertices.size(), 4096));
f.write(reinterpret_cast<const char*>(&pvCount), 4);
// Sanitize vertices on the way out — NaN portal vertices break
// the WMO portal-frustum cull and fail-back to drawing the entire
// building, defeating the indoor optimization.
std::vector<glm::vec3> sanPortal = portal.vertices;
std::vector<glm::vec3> sanPortal(portal.vertices.begin(),
portal.vertices.begin() + pvCount);
for (auto& v : sanPortal) {
if (!std::isfinite(v.x)) v.x = 0.0f;
if (!std::isfinite(v.y)) v.y = 0.0f;