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Fix Stormwind cathedral LOD shell and extend view distance

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- Add distance-based + backface culling for STORMWIND.WMO LOD shell groups
- Hide floating cathedral shell when within 185 units of group center
- Enable backface culling for LOD shell to reduce artifacts from inside
- Increase WMO view distance from 160 to 500 units for better visibility
- Extend fog distances to 3000-4000 units for clearer long-range views
- Add fog support to water renderer matching WMO fog settings
This commit is contained in:
Kelsi 2026-02-09 19:57:22 -08:00
parent 7e69978f40
commit 277c53d77c
4 changed files with 65 additions and 15 deletions
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49
src/rendering/wmo_renderer.cpp
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@ -919,10 +919,11 @@ void WMORenderer::render(const Camera& camera, const glm::mat4& view, const glm:
if (gi < instance.worldGroupBounds.size()) {
const auto& [gMin, gMax] = instance.worldGroupBounds[gi];
// Hard distance cutoff
// Hard distance cutoff (increased for better visibility of major structures)
// 500 units = 250000.0f squared (was 160 units / 25600.0f)
glm::vec3 closestPoint = glm::clamp(camPos, gMin, gMax);
float distSq = glm::dot(closestPoint - camPos, closestPoint - camPos);
if (distSq > 25600.0f) {
if (distSq > 250000.0f) {
result.distanceCulled++;
continue;
}
@ -1019,20 +1020,44 @@ void WMORenderer::render(const Camera& camera, const glm::mat4& view, const glm:
for (uint32_t gi : dl.visibleGroups) {
const auto& group = model.groups[gi];
// Hide floating LOD shell groups that are positioned too high
// Groups 92/93 are at worldZ 200-225 (floating shell with massive height)
// Group 95 at worldZ=162 is legitimate (keep it)
glm::vec3 groupCenter = (group.boundingBoxMin + group.boundingBoxMax) * 0.5f;
glm::vec4 worldCenter = instance.modelMatrix * glm::vec4(groupCenter, 1.0f);
glm::vec3 size = group.boundingBoxMax - group.boundingBoxMin;
// STORMWIND.WMO specific fix: LOD shell visibility control
// Combination of distance culling + backface culling for best results
bool isLODShell = false;
if (instance.modelId == 10047) {
glm::vec3 groupCenter = (group.boundingBoxMin + group.boundingBoxMax) * 0.5f;
glm::vec4 worldCenter = instance.modelMatrix * glm::vec4(groupCenter, 1.0f);
glm::vec3 size = group.boundingBoxMax - group.boundingBoxMin;
// Skip groups that are both HIGH (worldZ > 180) AND very tall (sizeZ > 100)
// This catches groups 92 (worldZ=225, sizeZ=251) and 93 (worldZ=201, sizeZ=165)
if (worldCenter.z > 180.0f && size.z > 100.0f) {
continue; // Skip floating LOD shell
// Detect LOD shell groups: Groups 92/93 at worldZ 200-225 with massive height
if (worldCenter.z > 195.0f && size.z > 160.0f) {
// Measure distance to the actual group center, not WMO origin
float distToGroup = glm::length(cameraPos - glm::vec3(worldCenter));
static int logCounter = 0;
if (logCounter++ % 300 == 0) {
LOG_INFO("LOD Shell Group ", gi, ": worldZ=", worldCenter.z, " sizeZ=", size.z,
" distToGroup=", distToGroup, " (hiding if < 185)");
}
// Completely hide LOD shell when close (underneath/inside city)
// NOTE: 185 units threshold - may need further tuning based on gameplay testing
if (distToGroup < 185.0f) {
continue; // Skip rendering entirely when close
}
// When farther away, use backface culling to hide interior faces
isLODShell = true;
glEnable(GL_CULL_FACE); // Enable backface culling for LOD shell
glCullFace(GL_BACK); // Cull back faces (reduces artifacts from outside)
}
}
renderGroup(group, model, instance.modelMatrix, view, projection);
// Restore culling state after LOD shell group
if (isLODShell) {
glDisable(GL_CULL_FACE);
}
}
lastPortalCulledGroups += dl.portalCulled;