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Disable all WMO floor caching including per-frame cache

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Removed both persistent grid cache and per-frame dedup cache. Even the
per-frame cache was causing issues when player Z changes between queries
in the same frame (multi-sampling), returning stale floor heights and
causing fall-through at stairs. Floor queries now always raycast fresh.
This commit is contained in:
Kelsi 2026-02-08 20:37:04 -08:00
parent f9dbc052dc
commit 4ca4d1e509
1 changed files with 4 additions and 9 deletions
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13
src/rendering/wmo_renderer.cpp
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@ -1739,12 +1739,8 @@ void WMORenderer::GroupResources::getWallTrianglesInRange(
}
std::optional<float> WMORenderer::getFloorHeight(float glX, float glY, float glZ, float* outNormalZ) const {
// Per-frame dedup cache: same (x,y) queried 3-5x per frame
auto frameCached = frameFloorCache_.get(glX, glY, currentFrameId, outNormalZ);
if (frameCached) return *frameCached;
// Persistent grid cache disabled - causes fall-through at stairs where
// one 2-unit cell contains multiple floor heights. Per-frame cache is sufficient.
// All floor caching disabled - even per-frame cache can return stale results
// when player Z changes between queries, causing fall-through at stairs.
QueryTimer timer(&queryTimeMs, &queryCallCount);
std::optional<float> bestFloor;
@ -1876,9 +1872,8 @@ std::optional<float> WMORenderer::getFloorHeight(float glX, float glY, float glZ
// Persistent grid cache disabled (see above comment about stairs fall-through)
if (bestFloor) {
if (outNormalZ) *outNormalZ = bestNormalZ;
frameFloorCache_.put(glX, glY, *bestFloor, bestNormalZ, currentFrameId);
if (bestFloor && outNormalZ) {
*outNormalZ = bestNormalZ;
}
return bestFloor;