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Relax walkable slope threshold and floor cache for steep stairs

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Changed walkable slope threshold from 0.45 (63°) to 0.40 (66°) in both
WMO and M2 collision to allow climbing steeper stairs (like 60° steps).
Increased WMO floor cache above-tolerance from 0.35 to 0.50 units to
prevent falling through floors in places like Booty Bay where cached
floor is slightly above query point.
This commit is contained in:
Kelsi 2026-02-08 20:26:24 -08:00
parent b51543fdd2
commit 58ec7693a1
2 changed files with 5 additions and 5 deletions
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6
src/rendering/wmo_renderer.cpp
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@ -1607,7 +1607,7 @@ void WMORenderer::GroupResources::buildCollisionGrid() {
glm::vec3 normal = glm::cross(edge1, edge2);
float normalLen = glm::length(normal);
float absNz = (normalLen > 0.001f) ? std::abs(normal.z / normalLen) : 0.0f;
bool isFloor = (absNz >= 0.45f);
bool isFloor = (absNz >= 0.40f); // ~66° max slope (relaxed for steep stairs)
bool isWall = (absNz < 0.65f); // Matches walkable slope threshold
int cellMinX = std::max(0, static_cast<int>((triMinX - gridOrigin.x) * invCellW));
@ -1750,7 +1750,7 @@ std::optional<float> WMORenderer::getFloorHeight(float glX, float glY, float glZ
float cachedHeight = gridIt->second;
// Only trust cache if it's basically at foot level.
// Prevent ledges/shoulder ramps from being treated as "floor".
constexpr float CACHE_ABOVE = 0.35f; // tune: 0.25–0.60
constexpr float CACHE_ABOVE = 0.50f; // tune: 0.25–0.60 (increased to catch borderline floors)
constexpr float CACHE_BELOW = 4.0f; // keep generous below
if (cachedHeight <= glZ + CACHE_ABOVE && cachedHeight >= glZ - CACHE_BELOW) {
// Persistent cache doesn't store normal — report as flat
@ -2066,7 +2066,7 @@ bool WMORenderer::checkWallCollision(const glm::vec3& from, const glm::vec3& to,
if (horizDist <= PLAYER_RADIUS) {
// Skip floor-like surfaces — grounding handles them, not wall collision
float absNz = std::abs(normal.z);
if (absNz >= 0.45f) continue;
if (absNz >= 0.40f) continue;
const float SKIN = 0.005f; // small separation so we don't re-collide immediately
// Stronger push when inside WMO for more responsive indoor collision